/* * Copyright (C) Volition, Inc. 1999. All rights reserved. * * All source code herein is the property of Volition, Inc. You may not sell * or otherwise commercially exploit the source or things you created based on the * source. * */ /* * $Logfile: /Freespace2/code/Weapon/Beam.cpp $ * $Revision: 2.38 $ * $Date: 2004-04-06 05:42:49 $ * $Author: Goober5000 $ * * all sorts of cool stuff about ships * * $Log: not supported by cvs2svn $ * Revision 2.37 2004/04/03 02:55:50 bobboau * commiting recent minor bug fixes * * Revision 2.36 2004/03/17 04:07:32 bobboau * new fighter beam code * fixed old after burner trails * had to bump a few limits, working on some dynamic solutions * a few fixed to background POF rendering * fixing asorted bugs * * Revision 2.35 2004/03/05 09:01:53 Goober5000 * Uber pass at reducing #includes * --Goober5000 * * Revision 2.34 2004/02/07 00:48:53 Goober5000 * made FS2 able to account for subsystem mismatches between ships.tbl and the * model file - e.g. communication vs. communications * --Goober5000 * * Revision 2.33 2003/11/17 04:25:58 bobboau * made the poly list dynamicly alocated, * started work on fixing the node model not rendering, * but most of that got commented out so I wouldn't have to deal with it * while mucking about with the polylist * * Revision 2.32 2003/11/16 04:09:20 Goober5000 * language * * Revision 2.31 2003/11/11 03:56:13 bobboau * lots of bug fixing, much of it in nebula and bitmap drawing * * Revision 2.30 2003/11/11 02:15:41 Goober5000 * ubercommit - basically spelling and language fixes with some additional * warnings disabled * --Goober5000 * * Revision 2.29 2003/11/09 07:36:52 Goober5000 * fixed spelling * --Goober5000 * * Revision 2.28 2003/10/23 18:03:25 randomtiger * Bobs changes (take 2) * * Revision 2.27 2003/10/22 23:10:14 phreak * commented out some mprintfs that kazan missed * * Revision 2.26 2003/10/13 05:57:50 Kazan * Removed a bunch of Useless *_printf()s in the rendering pipeline that were just slowing stuff down * Commented out the "warning null vector in vector normalize" crap since we don't give a rats arse * Added "beam no whack" flag for beams - said beams NEVER whack * Some reliability updates in FS2NetD * * Revision 2.25 2003/09/13 06:02:04 Goober5000 * clean rollback of all of argv's stuff * --Goober5000 * * Revision 2.23 2003/08/21 15:04:17 phreak * zeroed out the specular fields since they caused some flickering * * Revision 2.22 2003/07/16 23:12:44 phreak * fixed a dumb bug * * Revision 2.21 2003/07/15 02:39:59 phreak * fixed problem where beams that ignore shields do not fully damage the target * disabled attenuation for beams, pending rework * * Revision 2.20 2003/05/04 20:21:00 phreak * beams can't fire when disrupted. * cycle ends if the beam is firing and shooting ship is disrupted * * Revision 2.19 2003/04/29 01:03:22 Goober5000 * implemented the custom hitpoints mod * --Goober5000 * * Revision 2.18 2003/03/29 09:42:05 Goober5000 * made beams default shield piercing again * also added a beam no pierce command line flag * and fixed something else which I forgot :P * --Goober5000 * * Revision 2.17 2003/03/20 23:20:46 Goober5000 * comments * --Goober500 * * Revision 2.16 2003/03/02 17:19:45 Goober5000 * commented an unneeded variable * -- Goober5000 * * Revision 2.15 2003/02/26 02:56:55 bobboau * fixed the bug with fighter beams not giveing you kills * * Revision 2.14 2003/02/25 07:15:07 bobboau * doh... forgot something in the beam rendering code * * Revision 2.13 2003/02/25 06:22:50 bobboau * fixed a bunch of fighter beam bugs, * most notabley the sound now works corectly, * and they have limeted range with atenuated damage (table option) * added bank specific compatabilities * * Revision 2.12 2003/02/16 18:55:59 phreak * fixed typecasting warnings * * Revision 2.11 2003/02/16 05:14:29 bobboau * added glow map nebula bug fix for d3d, someone should add a fix for glide too * more importantly I (think I) have fixed all major bugs with fighter beams, and added a bit of new functionality * * Revision 2.10 2003/01/19 01:07:43 bobboau * redid the way glowmaps are handeled, you now must set the global int GLOWMAP (no longer an array) before you render a poly that uses a glow map then set GLOWMAP to -1 when you're done with, fixed a few other misc bugs it * * Revision 2.9 2003/01/13 23:20:01 Goober5000 * bug hunting; fixed the beam whack effect bug * --Goober5000 * * Revision 2.8 2002/12/27 17:58:11 Goober5000 * the insidious beam bug is now squashed AND committed! * --Goober5000 * * Revision 2.7 2002/12/20 00:50:41 DTP * DTP FIX, fast fix to the beam/shield bug problem. will maybe commit later when i find out why this is getting triggered when it should not * * Revision 2.6 2002/12/07 01:37:43 bobboau * inital decals code, if you are worried a bug is being caused by the decals code it's only references are in, * collideshipweapon.cpp line 262, beam.cpp line 2771, and modelinterp.cpp line 2949. * it needs a better renderer, but is in prety good shape for now, * I also (think) I squashed a bug in the warpmodel code * * Revision 2.5 2002/11/14 04:18:17 bobboau * added warp model and type 1 glow points * and well as made the new glow file type, * some general improvement to fighter beams, * * Revision 2.4 2002/10/19 19:29:29 bobboau * inital commit, trying to get most of my stuff into FSO, there should be most of my fighter beam, beam rendering, beam shield hit, ABtrails, and ssm stuff. one thing you should be happy to know is the beam texture tileing is now set in the beam section section of the weapon table entry * * Revision 2.3 2002/08/01 01:41:10 penguin * The big include file move * * Revision 2.2 2002/07/26 03:11:24 wmcoolmon * Added Bobboau's beam tiling code * * Revision 2.1 2002/07/25 04:50:48 wmcoolmon * Added Bobboau's fighter-beam code. * * Revision 2.0 2002/06/03 04:02:29 penguin * Warpcore CVS sync * * Revision 1.3 2002/05/13 21:09:29 mharris * I think the last of the networking code has ifndef NO_NETWORK... * * Revision 1.2 2002/05/04 04:52:22 mharris * 1st draft at porting * * Revision 1.1 2002/05/02 18:03:13 mharris * Initial checkin - converted filenames and includes to lower case * * * 68 9/09/99 11:40p Dave * Handle an Assert() in beam code. Added supernova sounds. Play the right * 2 end movies properly, based upon what the player did in the mission. * * 67 9/09/99 2:36p Mikek * Put back in the "1.0f +" in BEAM_TYPE_A aiming. Not the best way to * correct this. * * 65 9/08/99 10:29p Dave * Make beam sound pausing and unpausing much safer. * * 64 9/06/99 12:46a Andsager * Add weapon_explosion_ani LOD * * 63 9/03/99 5:12p Mikek * Change miss_factor code, making it a lot more likely for beams to miss * and also making them increasingly likely to miss with each subsequent * shot in the multi-shot burst. * * 62 8/30/99 5:01p Dave * Made d3d do less state changing in the nebula. Use new chat server for * PXO. * * 61 8/28/99 7:29p Dave * Fixed wingmen persona messaging. Make sure locked turrets don't count * towards the # attacking a player. * * 60 8/27/99 9:07p Dave * LOD explosions. Improved beam weapon accuracy. * * 59 8/26/99 10:15a Dave * Don't apply beam whacks to docked ships. * * 58 7/31/99 1:16p Dave * Use larger font for 1024 HUD flash text box. Make beam weapons aware of * weapon subsystem damage on firing ship. * * 57 7/22/99 4:00p Dave * Fixed beam weapon muzzle glow rendering. Externalized hud shield info. * * 56 7/19/99 7:20p Dave * Beam tooling. Specialized player-killed-self messages. Fixed d3d nebula * pre-rendering. * * 55 7/15/99 9:20a Andsager * FS2_DEMO initial checkin * * 54 7/09/99 5:54p Dave * Seperated cruiser types into individual types. Added tons of new * briefing icons. Campaign screen. * * 53 7/08/99 10:53a Dave * New multiplayer interpolation scheme. Not 100% done yet, but still * better than the old way. * * 52 7/02/99 10:51p Dave * Limit friendly beam fire damage. :( * * 51 7/01/99 11:44a Dave * Updated object sound system to allow multiple obj sounds per ship. * Added hit-by-beam sound. Added killed by beam sound. * * 50 6/29/99 7:39p Dave * Lots of small bug fixes. * * 49 6/29/99 2:53p Dave * Re-enabled beam lighting. * * 48 6/25/99 3:04p Dave * Removed Int3(). * * 47 6/24/99 3:00p Dave * Stupid bug. * * 46 6/23/99 4:49p Dave * Temporarily removed beam lighting. * * 45 6/21/99 7:25p Dave * netplayer pain packet. Added type E unmoving beams. * * 44 6/18/99 5:16p Dave * Added real beam weapon lighting. Fixed beam weapon sounds. Added MOTD * dialog to PXO screen. * * 43 6/14/99 10:45a Dave * Made beam weapons specify accuracy by skill level in the weapons.tbl * * 42 6/09/99 2:55p Andsager * Allow multiple asteroid subtypes (of large, medium, small) and follow * family. * * 41 6/08/99 6:02p Jamesa * Handle case where type B beam start and end directions are really * close. * * 40 6/04/99 2:16p Dave * Put in shrink effect for beam weapons. * * 39 5/14/99 11:47a Andsager * Added beam_get_weapon_info_index(object *bm) * * 38 5/12/99 10:43a Andsager * Increase max beam length * * 37 5/08/99 8:25p Dave * Upped object pairs. First run of nebula lightning. * * 36 5/05/99 9:02p Dave * Fixed D3D aabitmap rendering. Spiffed up nebula effect a bit (added * rotations, tweaked values, made bitmap selection more random). Fixed * D3D beam weapon clipping problem. Added D3d frame dumping. * * 35 5/03/99 9:07a Dave * Pirate Bob. Changed beam test code a bit. * * 34 4/27/99 12:16a Dave * Fixed beam weapon muzzle glow problem. Fixed premature timeout on the * pxo server list screen. Fixed secondary firing for hosts on a * standalone. Fixed wacky multiplayer weapon "shuddering" problem. * * 33 4/25/99 6:12p Johnson * Fixed bug where multi-shot beams were getting the shot count from the * wrong place. * * 32 4/25/99 3:36p Dave * Fixed nebula table code. Tweaked beam weapon explosion stuff. * * 31 4/23/99 2:33p Johnson * Allow beams to shoot at missiles properly. * * 30 4/23/99 12:01p Johnson * Added SIF_HUGE_SHIP * * 29 4/22/99 11:06p Dave * Final pass at beam weapons. Solidified a lot of stuff. All that remains * now is to tweak and fix bugs as they come up. No new beam weapon * features. * * 28 4/21/99 6:15p Dave * Did some serious housecleaning in the beam code. Made it ready to go * for anti-fighter "pulse" weapons. Fixed collision pair creation. Added * a handy macro for recalculating collision pairs for a given object. * * 27 4/20/99 6:39p Dave * Almost done with artillery targeting. Added support for downloading * images on the PXO screen. * * 26 4/19/99 11:01p Dave * More sophisticated targeting laser support. Temporary checkin. * * 25 4/19/99 4:54p Johnson * Removed infinite loop from beam_render_all() oops :) * * 24 4/16/99 5:54p Dave * Support for on/off style "stream" weapons. Real early support for * target-painting lasers. * * 23 4/04/99 2:13p Dave * Put in area effect beam weapons. May be a bit too expensive though. * Dave * 22 4/02/99 9:55a Dave * Added a few more options in the weapons.tbl for beam weapons. Attempt * at putting "pain" packets into multiplayer. * * 21 3/31/99 8:24p Dave * Beefed up all kinds of stuff, incluging beam weapons, nebula effects * and background nebulae. Added per-ship non-dimming pixel colors. * * 20 3/08/99 7:03p Dave * First run of new object update system. Looks very promising. * * 19 3/04/99 6:09p Dave * Added in sexpressions for firing beams and checking for if a ship is * tagged. * * 18 3/02/99 9:25p Dave * Added a bunch of model rendering debug code. Started work on fixing * beam weapon wacky firing. * * 17 2/21/99 1:48p Dave * Some code for monitoring datarate for multiplayer in detail. * * 16 2/11/99 3:08p Dave * PXO refresh button. Very preliminary squad war support. * * 15 2/05/99 3:23p Mattf * Made beams a little more forgiving when checking object types. * * 14 2/05/99 12:52p Dave * Fixed Glide nondarkening textures. * * 13 2/04/99 6:29p Dave * First full working rev of FS2 PXO support. Fixed Glide lighting * problems. * * 12 1/30/99 9:02p Dave * Fixed neb stuff. * * 11 1/30/99 1:29a Dave * Fixed nebula thumbnail problem. Full support for 1024x768 choose pilot * screen. Fixed beam weapon death messages. * * 10 1/29/99 7:08p Johnson * Put in fix for beam weapons which are on dying ships. * * 9 1/29/99 12:47a Dave * Put in sounds for beam weapon. A bunch of interface screens (tech * database stuff). * * 8 1/27/99 9:56a Dave * Temporary checkin of beam weapons for Dan to make cool sounds. * * 7 1/24/99 11:37p Dave * First full rev of beam weapons. Very customizable. Removed some bogus * Int3()'s in low level net code. * * 6 1/21/99 2:06p Dave * Final checkin for multiplayer testing. * * 5 1/21/99 10:45a Dave * More beam weapon stuff. Put in warmdown time. * * 4 1/14/99 12:48a Dave * Todo list bug fixes. Made a pass at putting briefing icons back into * FRED. Sort of works :( * * 3 1/12/99 12:53a Dave * More work on beam weapons - made collision detection very efficient - * collide against all object types properly - made 3 movement types * smooth. Put in test code to check for possible non-darkening pixels on * object textures. * * 2 1/08/99 2:08p Dave * Fixed software rendering for pofview. Super early support for AWACS and * beam weapons. * * * $NoKeywords: $ */ #include "weapon/beam.h" #include "globalincs/linklist.h" #include "object/object.h" #include "object/objcollide.h" #include "ship/ship.h" #include "freespace2/freespace.h" #include "render/3d.h" #include "io/timer.h" #include "debris/debris.h" #include "asteroid/asteroid.h" #include "network/multi.h" #include "network/multimsgs.h" #include "particle/particle.h" #include "ship/shiphit.h" #include "gamesnd/gamesnd.h" #include "hud/hudmessage.h" #include "lighting/lighting.h" #include "hud/hudshield.h" #include "playerman/player.h" #include "weapon/weapon.h" #include "parse/parselo.h" extern int Cmdline_nohtl; // ------------------------------------------------------------------------------------------------ // BEAM WEAPON DEFINES/VARS // // this is the constant which defines when a beam is an "area" beam. meaning, when we switch on sphereline checking and when // a beam gets "stopped" by an object. It is a percentage of the object radius which the beam must be wider than #define BEAM_AREA_PERCENT 0.4f // randomness factor - all beam weapon aiming is adjusted by +/- some factor within this range #define BEAM_RANDOM_FACTOR 0.4f #define MAX_BEAMS 500 #define BEAM_DAMAGE_TIME 170 // apply damage #define MAX_SHOT_POINTS 30 #define SHOT_POINT_TIME 200 // 5 arcs a second #define TOOLTIME 1500.0f // max # of collisions we'll allow per frame #define MAX_FRAME_COLLISIONS 5 // beam flag defines #define BF_SAFETY (1<<0) // if this is set, don't collide or render for this frame. lifetime still increases though #define BF_SHRINK (1<<1) // if this is set, the beam is in the warmdown phase // beam struct (the actual weapon/object) typedef struct beam { // low-level data int objnum; // our own objnum int weapon_info_index; int sig; // signature for the shooting object object *objp; // the shooting object (who owns the turret that I am being fired from) object *target; // target object ship_subsys *target_subsys; // targeted subsys int target_sig; // target sig ship_subsys *subsys; // subsys its being fired from beam *next, *prev; // link list stuff vector targeting_laser_offset; int framecount; // how many frames the beam has been active int flags; // see BF_* defines float shrink; // shrink factor // beam info int warmup_stamp; // timestamp for "warming up" int warmdown_stamp; // timestamp for "warming down" int type; // see BEAM_TYPE_* defines in beam.h float life_left; // in seconds float life_total; // total life // this vector has very special meaning. BEFORE performing collision checks, it basically implies a "direction". meaning // the vector between it and last_start is where the beam will be aiming. AFTER performing collision checks, it is the // literal world collision point on the object (or meaningless, if we hit nothing). The function beam_move_all_pre() is // responsible for then setting it up pre-collision time vector last_shot; vector last_start; int shot_index; // for type D beam weapons // recent collisions beam_collision r_collisions[MAX_FRAME_COLLISIONS]; // recent collisions int r_collision_count; // # of recent collisions // collision info for this frame beam_collision f_collisions[MAX_FRAME_COLLISIONS]; // collisions for the current frame int f_collision_count; // # of collisions we recorded this frame // looping sound info, HANDLE int beam_sound_loop; // -1 if none // team char team; float range; float damage_threshold; // exactly how the beam will behave. by passing this is multiplayer from server to client, we can ensure that // everything looks the same beam_info binfo; bool fighter_beam; int bank; int Beam_muzzle_stamp; vector local_pnt; } beam; beam Beams[MAX_BEAMS]; // all beams beam Beam_free_list; // free beams beam Beam_used_list; // used beams int Beam_count = 0; // how many beams are in use // octant indices. These are "good" pairs of octants to use for beam target #define BEAM_NUM_GOOD_OCTANTS 8 int Beam_good_slash_octants[BEAM_NUM_GOOD_OCTANTS][4] = { { 2, 5, 1, 0 }, // octant, octant, min/max pt, min/max pt { 7, 0, 1, 0 }, { 1, 6, 1, 0 }, { 6, 1, 0, 1 }, { 5, 2, 0, 1 }, { 0, 7, 0, 1 }, { 7, 1, 1, 0 }, { 6, 0, 1, 0 }, }; int Beam_good_shot_octants[BEAM_NUM_GOOD_OCTANTS][4] = { { 5, 0, 1, 0 }, // octant, octant, min/max pt, min/max pt { 7, 2, 1, 0 }, { 7, 1, 1, 0 }, { 6, 0, 1, 0 }, { 7, 3, 1, 0 }, { 6, 2, 1, 0 }, { 5, 1, 1, 0 }, { 4, 0, 1, 0 }, }; // damage cap values for friendly beam fire float Beam_friendly_cap[NUM_SKILL_LEVELS] = { 0.0f, 5.0f, 10.0f, 20.0f, 30.0f }; // beam lighting effects int Beam_lighting = 1; // debug stuff - keep track of how many collision tests we perform a second and how many we toss a second #define BEAM_TEST_STAMP_TIME 4000 // every 4 seconds int Beam_test_stamp = -1; int Beam_test_ints = 0; int Beam_test_ship = 0; int Beam_test_ast = 0; int Beam_test_framecount = 0; // beam warmup completion % #define BEAM_WARMUP_PCT(b) ( ((float)Weapon_info[b->weapon_info_index].b_info.beam_warmup - (float)timestamp_until(b->warmup_stamp)) / (float)Weapon_info[b->weapon_info_index].b_info.beam_warmup ) // beam warmdown completion % #define BEAM_WARMDOWN_PCT(b) ( ((float)Weapon_info[b->weapon_info_index].b_info.beam_warmdown - (float)timestamp_until(b->warmdown_stamp)) / (float)Weapon_info[b->weapon_info_index].b_info.beam_warmdown ) // timestamp for spewing muzzle particles //int Beam_muzzle_stamp = -1; // link into the physics paused system extern int physics_paused; // beam lighting info #define MAX_BEAM_LIGHT_INFO 100 typedef struct beam_light_info { beam *bm; // beam casting the light int objnum; // object getting light cast on it ubyte source; // 0 to light the shooter, 1 for lighting any ship the beam passes, 2 to light the collision ship vector c_point; // collision point for type 2 lights } beam_light_info; beam_light_info Beam_lights[MAX_BEAM_LIGHT_INFO]; int Beam_light_count = 0; float b_whack_small = 500.0f; float b_whack_big = 1500.0f; float b_whack_damage = 150.0f; DCF(b_whack_small, "") { dc_get_arg(ARG_FLOAT); b_whack_small = Dc_arg_float; } DCF(b_whack_big, "") { dc_get_arg(ARG_FLOAT); b_whack_big = Dc_arg_float; } DCF(b_whack_damage, "") { dc_get_arg(ARG_FLOAT); b_whack_damage = Dc_arg_float; } // ------------------------------------------------------------------------------------------------ // BEAM WEAPON FORWARD DECLARATIONS // // delete a beam void beam_delete(beam *b); // handle a hit on a specific object void beam_handle_collisions(beam *b); // fills in binfo void beam_get_binfo(beam *b, float accuracy, int num_shots); // aim the beam (setup last_start and last_shot - the endpoints). also recalculates object collision info void beam_aim(beam *b); // type A functions void beam_type_a_move(beam *b); // type B functions void beam_type_b_move(beam *b); // type C functions void beam_type_c_move(beam *b); // type D functions void beam_type_d_move(beam *b); void beam_type_d_get_status(beam *b, int *shot_index, int *fire_wait); // type e functions void beam_type_e_move(beam *b); // given a model #, and an object, stuff 2 good world coord points void beam_get_octant_points(int modelnum, object *objp, int oct_index, int oct_array[BEAM_NUM_GOOD_OCTANTS][4], vector *v1, vector *v2); // given an object, return its model num int beam_get_model(object *objp); // for a given object, and a firing beam, determine its critical dot product and range void beam_get_cull_vals(object *objp, beam *b, float *cull_dot, float *cull_dist); // get the total possible cone for a given beam in radians float beam_get_cone_dot(beam *b); // for rendering the beam effect // output top and bottom vectors // fvec == forward vector (eye viewpoint basically. in world coords) // pos == world coordinate of the point we're calculating "around" // w == width of the diff between top and bottom around pos void beam_calc_facing_pts(vector *top, vector *bot, vector *fvec, vector *pos, float w, float z_add); // render the muzzle glow for a beam weapon void beam_render_muzzle_glow(beam *b); // generate particles for the muzzle glow void beam_generate_muzzle_particles(beam *b); // throw some jitter into the aim - based upon shot_aim void beam_jitter_aim(beam *b, float aim); // if it is legal for the beam to continue firing // returns -1 if the beam should stop firing immediately // returns 0 if the beam should go to warmdown // returns 1 if the beam can continue along its way int beam_ok_to_fire(beam *b); // start the warmup phase for the beam void beam_start_warmup(beam *b); // start the firing phase for the beam, return 0 if the beam failed to start, and should be deleted altogether int beam_start_firing(beam *b); // start the warmdown phase for the beam void beam_start_warmdown(beam *b); // add a collision to the beam for this frame (to be evaluated later) void beam_add_collision(beam *b, object *hit_object, mc_info *cinfo); // sort collisions for the frame int beam_sort_collisions_func(const void *e1, const void *e2); // get the width of the widest section of the beam float beam_get_widest(beam *b); // mark an object as being lit void beam_add_light(beam *b, int objnum, int source, vector *c_point); // apply lighting from any beams void beam_apply_lighting(); // recalculate beam sounds (looping sounds relative to the player) void beam_recalc_sounds(beam *b); // apply a whack to a ship void beam_apply_whack(beam *b, object *objp, vector *hit_point); // return the amount of damage which should be applied to a ship. basically, filters friendly fire damage float beam_get_ship_damage(beam *b, object *objp, vector *hit_pos); // if the beam is likely to tool a given target before its lifetime expires int beam_will_tool_target(beam *b, object *objp); // ------------------------------------------------------------------------------------------------ // BEAM WEAPON FUNCTIONS // // init at game startup void beam_init() { // clear the beams list_init( &Beam_free_list ); list_init( &Beam_used_list ); } // initialize beam weapons for this level void beam_level_init() { // intialize beams int idx; Beam_count = 0; list_init( &Beam_free_list ); list_init( &Beam_used_list ); memset(Beams, 0, sizeof(beam) * MAX_BEAMS); // Link all object slots into the free list for (idx=0; idx= MAX_BEAMS){ return -1; } // for now, only allow ship targets if(!fire_info->fighter_beam) if((fire_info->target->type != OBJ_SHIP) && (fire_info->target->type != OBJ_ASTEROID) && (fire_info->target->type != OBJ_DEBRIS) && (fire_info->target->type != OBJ_WEAPON)){ return -1; } // make sure the beam_info_index is valid Assert((fire_info->beam_info_index >= 0) && (fire_info->beam_info_index < MAX_WEAPON_TYPES) && (Weapon_info[fire_info->beam_info_index].wi_flags & WIF_BEAM)); if((fire_info->beam_info_index < 0) || (fire_info->beam_info_index >= MAX_WEAPON_TYPES) || !(Weapon_info[fire_info->beam_info_index].wi_flags & WIF_BEAM)){ return -1; } wip = &Weapon_info[fire_info->beam_info_index]; // make sure a ship is firing this Assert((fire_info->shooter->type == OBJ_SHIP) && (fire_info->shooter->instance >= 0) && (fire_info->shooter->instance < MAX_SHIPS)); if((fire_info->shooter->type != OBJ_SHIP) || (fire_info->shooter->instance < 0) && (fire_info->shooter->instance >= MAX_SHIPS)){ return -1; } firing_ship = &Ships[fire_info->shooter->instance]; // get a free beam new_item = GET_FIRST(&Beam_free_list); Assert( new_item != &Beam_free_list ); // shouldn't have the dummy element if(new_item == &Beam_free_list){ return -1; } // remove from the free list list_remove( &Beam_free_list, new_item ); // insert onto the end of used list list_append( &Beam_used_list, new_item ); // increment counter Beam_count++; // fill in some values new_item->warmup_stamp = -1; new_item->warmdown_stamp = -1; new_item->weapon_info_index = fire_info->beam_info_index; new_item->objp = fire_info->shooter; new_item->sig = fire_info->shooter->signature; new_item->subsys = fire_info->turret; new_item->local_pnt = fire_info->turret->system_info->pnt; new_item->life_left = wip->b_info.beam_life; new_item->life_total = wip->b_info.beam_life; new_item->r_collision_count = 0; new_item->f_collision_count = 0; new_item->target = fire_info->target; new_item->target_subsys = fire_info->target_subsys; new_item->target_sig = fire_info->target->signature; new_item->beam_sound_loop = -1; new_item->type = wip->b_info.beam_type; new_item->targeting_laser_offset = fire_info->targeting_laser_offset; new_item->framecount = 0; new_item->flags = 0; new_item->shot_index = 0; new_item->shrink = 1.0f; new_item->team = (char)firing_ship->team; new_item->range = wip->b_info.range; new_item->damage_threshold = wip->b_info.damage_threshold; new_item->fighter_beam = fire_info->fighter_beam; new_item->bank = fire_info->bank; new_item->Beam_muzzle_stamp = -1; if(fire_info->fighter_beam){ new_item->type = BEAM_TYPE_C; } // if the targeted subsystem is not NULL, force it to be a type A beam if(new_item->target_subsys != NULL && new_item->type != BEAM_TYPE_C){ new_item->type = BEAM_TYPE_A; } // type D weapons can only fire at small ships and missiles if(new_item->type == BEAM_TYPE_D){ // if its a targeted ship, get the target ship if((fire_info->target != NULL) && (fire_info->target->type == OBJ_SHIP) && (fire_info->target->instance >= 0)){ ship *target_ship = &Ships[fire_info->target->instance]; // maybe force to be a type A if(Ship_info[target_ship->ship_info_index].flags & (SIF_BIG_SHIP | SIF_CAPITAL | SIF_SUPERCAP | SIF_FREIGHTER | SIF_DRYDOCK | SIF_CARGO)){ new_item->type = BEAM_TYPE_A; } } } // ---------------------------------------------------------------------- // THIS IS THE CRITICAL POINT FOR MULTIPLAYER // beam_get_binfo(...) determines exactly how the beam will behave over the course of its life // it fills in binfo, which we can pass to clients in multiplayer if(fire_info->beam_info_override != NULL){ new_item->binfo = *fire_info->beam_info_override; } else { beam_get_binfo(new_item, fire_info->accuracy, wip->b_info.beam_shots); // to fill in b_info - the set of directional aim vectors } // create the associated object objnum = obj_create(OBJ_BEAM, -1, new_item - Beams, &vmd_identity_matrix, &vmd_zero_vector, 1.0f, OF_COLLIDES); if(objnum < 0){ beam_delete(new_item); nprintf(("General", "obj_create() failed for beam weapon! bah!\n")); Int3(); return -1; } new_item->objnum = objnum; // this sets up all info for the first frame the beam fires beam_aim(new_item); // to fill in shot_point, etc. // check to see if its legal to fire at this guy if(beam_ok_to_fire(new_item) != 1){ beam_delete(new_item); mprintf(("Killing beam at initial fire because of illegal targeting!!!\n")); return -1; } #ifndef NO_NETWORK // if we're a multiplayer master - send a packet if(MULTIPLAYER_MASTER){ send_beam_fired_packet(fire_info->shooter, fire_info->turret, fire_info->target, fire_info->beam_info_index, &new_item->binfo); } #endif // start the warmup phase beam_start_warmup(new_item); return objnum; } // fire a targeting beam, returns objnum on success. a much much simplified version of a beam weapon // targeting lasers last _one_ frame. For a continuous stream - they must be created every frame. // this allows it to work smoothly in multiplayer (detect "trigger down". every frame just create a targeting laser firing straight out of the // object. this way you get all the advantages of nice rendering and collisions). // NOTE : only references beam_info_index and shooter int beam_fire_targeting(fighter_beam_fire_info *fire_info) { beam *new_item; weapon_info *wip; int objnum; ship *firing_ship; // sanity check if(fire_info == NULL){ Int3(); return -1; } // if we're out of beams, bail if(Beam_count >= MAX_BEAMS){ return -1; } // make sure the beam_info_index is valid Assert((fire_info->beam_info_index >= 0) && (fire_info->beam_info_index < MAX_WEAPON_TYPES) && (Weapon_info[fire_info->beam_info_index].wi_flags & WIF_BEAM)); if((fire_info->beam_info_index < 0) || (fire_info->beam_info_index >= MAX_WEAPON_TYPES) || !(Weapon_info[fire_info->beam_info_index].wi_flags & WIF_BEAM)){ return -1; } wip = &Weapon_info[fire_info->beam_info_index]; // make sure a ship is firing this Assert((fire_info->shooter->type == OBJ_SHIP) && (fire_info->shooter->instance >= 0) && (fire_info->shooter->instance < MAX_SHIPS)); if((fire_info->shooter->type != OBJ_SHIP) || (fire_info->shooter->instance < 0) && (fire_info->shooter->instance >= MAX_SHIPS)){ return -1; } firing_ship = &Ships[fire_info->shooter->instance]; // get a free beam new_item = GET_FIRST(&Beam_free_list); Assert( new_item != &Beam_free_list ); // shouldn't have the dummy element // remove from the free list list_remove( &Beam_free_list, new_item ); // insert onto the end of used list list_append( &Beam_used_list, new_item ); // increment counter Beam_count++; // maybe allocate some extra data based on the beam type Assert(wip->b_info.beam_type == BEAM_TYPE_C); if(wip->b_info.beam_type != BEAM_TYPE_C){ return -1; } // fill in some values new_item->warmup_stamp = fire_info->warmup_stamp; new_item->warmdown_stamp = fire_info->warmdown_stamp; new_item->weapon_info_index = fire_info->beam_info_index; new_item->objp = fire_info->shooter; new_item->sig = fire_info->shooter->signature; new_item->subsys = NULL; new_item->life_left = fire_info->life_left; new_item->life_total = fire_info->life_total; new_item->r_collision_count = 0; new_item->f_collision_count = 0; new_item->target = NULL; new_item->target_subsys = NULL; new_item->target_sig = 0; new_item->beam_sound_loop = -1; new_item->type = BEAM_TYPE_C; new_item->targeting_laser_offset = fire_info->targeting_laser_offset; new_item->framecount = 0; new_item->flags = 0; new_item->shot_index = 0; new_item->shrink = 1.0f; new_item->team = (char)firing_ship->team; new_item->range = wip->b_info.range; new_item->damage_threshold = wip->b_info.damage_threshold; // type c is a very special weapon type - binfo has no meaning // create the associated object objnum = obj_create(OBJ_BEAM, OBJ_INDEX(fire_info->shooter), new_item - Beams, &vmd_identity_matrix, &vmd_zero_vector, 1.0f, OF_COLLIDES); if(objnum < 0){ beam_delete(new_item); nprintf(("General", "obj_create() failed for beam weapon! bah!\n")); Int3(); return -1; } new_item->objnum = objnum; // this sets up all info for the first frame the beam fires beam_aim(new_item); // to fill in shot_point, etc. if(Beams[Objects[objnum].instance].objnum != objnum){ Int3(); return -1; } // Objects[objnum].instance = objnum return objnum; } // return an object index of the guy who's firing this beam int beam_get_parent(object *bm) { beam *b; // get a handle to the beam Assert(bm->type == OBJ_BEAM); Assert(bm->instance >= 0); if(bm->type != OBJ_BEAM){ return -1; } if(bm->instance < 0){ return -1; } b = &Beams[bm->instance]; Assert(b->objp != NULL); if(b->objp == NULL){ return -1; } // if the object handle is invalid if(b->objp->signature != b->sig){ return -1; } //comented out to see if this is the weak link in the fighter beam hit recording -Bobboau // return the handle return OBJ_INDEX(b->objp); } // return weapon_info_index of beam int beam_get_weapon_info_index(object *bm) { Assert(bm->type == OBJ_BEAM); if (bm->type != OBJ_BEAM) { return -1; } Assert(bm->instance >= 0 && bm->instance < MAX_BEAMS); if (bm->instance < 0) { return -1; } //make sure it's returning a valid info index Assert((Beams[bm->instance].weapon_info_index > -1) && (Beams[bm->instance].weapon_info_index < Num_weapon_types)); // return weapon_info_index return Beams[bm->instance].weapon_info_index; } // given a beam object, get the # of collisions which happened during the last collision check (typically, last frame) int beam_get_num_collisions(int objnum) { // sanity checks if((objnum < 0) || (objnum >= MAX_OBJECTS)){ Int3(); return -1; } if((Objects[objnum].instance < 0) || (Objects[objnum].instance >= MAX_BEAMS)){ Int3(); return -1; } if(Beams[Objects[objnum].instance].objnum != objnum){ Int3(); return -1; } if(Beams[Objects[objnum].instance].objnum < 0){ Int3(); return -1; } // return the # of recent collisions return Beams[Objects[objnum].instance].r_collision_count; } // stuff collision info, returns 1 on success int beam_get_collision(int objnum, int num, int *collision_objnum, mc_info **cinfo) { // sanity checks if((objnum < 0) || (objnum >= MAX_OBJECTS)){ Int3(); return 0; } if((Objects[objnum].instance < 0) || (Objects[objnum].instance >= MAX_BEAMS)){ Int3(); return 0; } if((Beams[Objects[objnum].instance].objnum != objnum) || (Beams[Objects[objnum].instance].objnum < 0)){ Int3(); return 0; } if(num >= Beams[Objects[objnum].instance].r_collision_count){ Int3(); return 0; } // return - success *cinfo = &Beams[Objects[objnum].instance].r_collisions[num].cinfo; *collision_objnum = Beams[Objects[objnum].instance].r_collisions[num].c_objnum; return 1; } // pause all looping beam sounds void beam_pause_sounds() { beam *moveup = NULL; // set all beam volumes to 0 moveup = GET_FIRST(&Beam_used_list); if(moveup == NULL){ return; } while(moveup != END_OF_LIST(&Beam_used_list)){ // set the volume to 0, if he has a looping beam sound if(moveup->beam_sound_loop >= 0){ snd_set_volume(moveup->beam_sound_loop, 0.0f); } // next beam moveup = GET_NEXT(moveup); } } // unpause looping beam sounds void beam_unpause_sounds() { beam *moveup = NULL; // recalc all beam sounds moveup = GET_FIRST(&Beam_used_list); if(moveup == NULL){ return; } while(moveup != END_OF_LIST(&Beam_used_list)){ beam_recalc_sounds(moveup); // next beam moveup = GET_NEXT(moveup); } } void beam_get_global_turret_gun_info(object *objp, ship_subsys *ssp, vector *gpos, vector *gvec, int use_angles, vector *targetp, bool fighter_beam){ ship_get_global_turret_gun_info(objp, ssp, gpos, gvec, use_angles, targetp); if(fighter_beam)*gvec = objp->orient.vec.fvec; } // -----------------------------===========================------------------------------ // BEAM MOVEMENT FUNCTIONS // -----------------------------===========================------------------------------ // move a type A beam weapon void beam_type_a_move(beam *b) { vector dir; vector temp, temp2; // LEAVE THIS HERE OTHERWISE MUZZLE GLOWS DRAW INCORRECTLY WHEN WARMING UP OR DOWN // get the "originating point" of the beam for this frame. essentially bashes last_start beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &temp2, b->fighter_beam); // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return; } // put the "last_shot" point arbitrarily far away vm_vec_sub(&dir, &b->last_shot, &b->last_start); vm_vec_normalize_quick(&dir); vm_vec_scale_add(&b->last_shot, &b->last_start, &dir, b->range); Assert(is_valid_vec(&b->last_shot)); } // move a type B beam weapon #define BEAM_T(b) ( ((b->binfo.delta_ang / b->life_total) * (b->life_total - b->life_left)) / b->binfo.delta_ang ) void beam_type_b_move(beam *b) { vector actual_dir; vector temp, temp2; float dot_save; // LEAVE THIS HERE OTHERWISE MUZZLE GLOWS DRAW INCORRECTLY WHEN WARMING UP OR DOWN // get the "originating point" of the beam for this frame. essentially bashes last_start beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &temp2, b->fighter_beam); // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return; } // if the two direction vectors are _really_ close together, just use the original direction dot_save = vm_vec_dot(&b->binfo.dir_a, &b->binfo.dir_b); if((double)dot_save >= 0.999999999){ actual_dir = b->binfo.dir_a; } // otherwise move towards the dir we calculated when firing this beam else { vm_vec_interp_constant(&actual_dir, &b->binfo.dir_a, &b->binfo.dir_b, BEAM_T(b)); } // now recalculate shot_point to be shooting through our new point vm_vec_scale_add(&b->last_shot, &b->last_start, &actual_dir, b->range); int is_valid = is_valid_vec(&b->last_shot); Assert(is_valid); if(!is_valid){ actual_dir = b->binfo.dir_a; vm_vec_scale_add(&b->last_shot, &b->last_start, &actual_dir, b->range); } } // type C functions void beam_type_c_move(beam *b) { vector temp; // ugh if(b->objp == NULL){ Int3(); return; } // type c beams only last one frame so we never have to "move" them. temp = b->targeting_laser_offset; vm_vec_unrotate(&b->last_start, &temp, &b->objp->orient); vm_vec_add2(&b->last_start, &b->objp->pos); vm_vec_scale_add(&b->last_shot, &b->last_start, &b->objp->orient.vec.fvec, b->range); Ships[b->objp->instance].weapon_energy -= Weapon_info[b->weapon_info_index].energy_consumed * flFrametime; } // type D functions void beam_type_d_move(beam *b) { int shot_index, fire_wait; vector temp, temp2, dir; // LEAVE THIS HERE OTHERWISE MUZZLE GLOWS DRAW INCORRECTLY WHEN WARMING UP OR DOWN // get the "originating point" of the beam for this frame. essentially bashes last_start beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &temp2, b->fighter_beam); // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return; } // determine what stage of the beam we're in beam_type_d_get_status(b, &shot_index, &fire_wait); // if we've changed shot index if(shot_index != b->shot_index){ // set the new index b->shot_index = shot_index; // re-aim beam_aim(b); } // if we're in the fire wait stage b->flags &= ~BF_SAFETY; if(fire_wait){ b->flags |= BF_SAFETY; } // put the "last_shot" point arbitrarily far away vm_vec_sub(&dir, &b->last_shot, &b->last_start); vm_vec_normalize_quick(&dir); vm_vec_scale_add(&b->last_shot, &b->last_start, &dir, b->range); Assert(is_valid_vec(&b->last_shot)); } void beam_type_d_get_status(beam *b, int *shot_index, int *fire_wait) { float shot_time = b->life_total / (float)b->binfo.shot_count; float beam_time = b->life_total - b->life_left; // determine what "shot" we're on *shot_index = (int)(beam_time / shot_time); Assert(*shot_index < b->binfo.shot_count); if(*shot_index >= b->binfo.shot_count){ *shot_index = b->binfo.shot_count - 1; } // determine if its the firing or waiting section of the shot (fire happens first, THEN wait) *fire_wait = 0; if(beam_time > ((shot_time * (*shot_index)) + (shot_time * 0.5f))){ *fire_wait = 1; } } // type e functions void beam_type_e_move(beam *b) { vector temp, turret_norm; // LEAVE THIS HERE OTHERWISE MUZZLE GLOWS DRAW INCORRECTLY WHEN WARMING UP OR DOWN // get the "originating point" of the beam for this frame. essentially bashes last_start beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &turret_norm, 1, &temp, b->fighter_beam); // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return; } // put the "last_shot" point arbitrarily far away vm_vec_scale_add(&b->last_shot, &b->last_start, &turret_norm, b->range); Assert(is_valid_vec(&b->last_shot)); } // pre-move (before collision checking - but AFTER ALL OTHER OBJECTS HAVE BEEN MOVED) void beam_move_all_pre() { beam *b; beam *moveup; // zero lights for this frame yet Beam_light_count = 0; // traverse through all active beams moveup = GET_FIRST(&Beam_used_list); while(moveup != END_OF_LIST(&Beam_used_list)){ // get the beam b = moveup; // unset collision info b->f_collision_count = 0; if(!physics_paused){ // move the beam switch(b->type){ // type A beam weapons don't move case BEAM_TYPE_A : beam_type_a_move(b); break; // type B beam weapons move across the target somewhat randomly case BEAM_TYPE_B : beam_type_b_move(b); break; // type C beam weapons are attached to a fighter - pointing forward case BEAM_TYPE_C: beam_type_c_move(b); break; // type D case BEAM_TYPE_D: beam_type_d_move(b); break; // type E case BEAM_TYPE_E: beam_type_e_move(b); break; // illegal beam type default : Int3(); } } // next moveup = GET_NEXT(moveup); } } // post-collision time processing for beams void beam_move_all_post() { beam *moveup; beam *next_one; int bf_status; beam_weapon_info *bwi; // traverse through all active beams moveup = GET_FIRST(&Beam_used_list); while(moveup != END_OF_LIST(&Beam_used_list)){ bwi = &Weapon_info[moveup->weapon_info_index].b_info; //mprintf(("moveing beam with weapon info index %d, post\n", moveup->weapon_info_index)); // check the status of the beam bf_status = beam_ok_to_fire(moveup); // if we're warming up if(moveup->warmup_stamp != -1){ next_one = GET_NEXT(moveup); // should we be stopping? if(bf_status < 0){ // mprintf(("killing beam becase it isn't ok to be fireing\n")); beam_delete(moveup); } else { // if the warming up timestamp has expired, start firing if(timestamp_elapsed(moveup->warmup_stamp)){ // start firing if(!beam_start_firing(moveup)){ // mprintf(("killing beam becase it shouldn't have started fireing yet\n")); beam_delete(moveup); } // add a muzzle light for the shooter beam_add_light(moveup, OBJ_INDEX(moveup->objp), 0, NULL); } } // next // mprintf(("beam is warming up, moveing to next\n")); moveup = next_one; continue; } // if we're warming down else if(moveup->warmdown_stamp != -1){ next_one = GET_NEXT(moveup); // should we be stopping? if(bf_status < 0){ // mprintf(("killing beam becase it isn't ok to fire\n")); beam_delete(moveup); } else { // if we're done warming down, the beam is finished if(timestamp_elapsed(moveup->warmdown_stamp)){ // mprintf(("euthaniseing beam\n")); beam_delete(moveup); } } // next // mprintf(("beam is warming down, moveing to next\n")); moveup = next_one; continue; } // mprintf(("beam is fireing\n")); // otherwise, we're firing away......... // add a muzzle light for the shooter beam_add_light(moveup, OBJ_INDEX(moveup->objp), 0, NULL); // subtract out the life left for the beam if(!physics_paused){ moveup->life_left -= flFrametime; } // if we're past the shrink point, start shrinking the beam if(moveup->life_left <= (moveup->life_total * bwi->beam_shrink_factor)){ moveup->flags |= BF_SHRINK; } // if we're shrinking the beam if(moveup->flags & BF_SHRINK){ moveup->shrink -= bwi->beam_shrink_pct * flFrametime; if(moveup->shrink < 0.1f){ moveup->shrink = 0.1f; } } // stop shooting? if(bf_status <= 0){ next_one = GET_NEXT(moveup); // if beam should abruptly stop if(bf_status == -1){ // mprintf(("beam stoping abruptly\n")); beam_delete(moveup); } // if the beam should just power down else { beam_start_warmdown(moveup); } // next beam moveup = next_one; // mprintf(("beam stopping\n")); continue; } // increment framecount moveup->framecount++; // mprintf(("frame %d\n", moveup->framecount)); // type c weapons live for one frame only /* if(moveup->type == BEAM_TYPE_C){ if(moveup->framecount > 1){ next_one = GET_NEXT(moveup); beam_delete(moveup); // mprintf(("type c beams only live for one frame\n")); moveup = next_one; continue; } } // done firing, so go into the warmdown phase else*/ { if((moveup->life_left <= 0.0f) && (moveup->warmdown_stamp == -1)){ beam_start_warmdown(moveup); moveup = GET_NEXT(moveup); // mprintf(("warming beam down\n")); continue; } } // mprintf(("starting collisions\n")); // handle any collisions which occured collision (will take care of applying damage to all objects which got hit) beam_handle_collisions(moveup); // mprintf(("recalcing sounds\n")); // recalculate beam sounds beam_recalc_sounds(moveup); // next item moveup = GET_NEXT(moveup); // mprintf(("moved, getting next\n")); } // apply all beam lighting // mprintf(("applying light\n")); beam_apply_lighting(); // process beam culling info #ifndef NDEBUG /* if(Beam_test_stamp == -1){ Beam_test_stamp = timestamp(BEAM_TEST_STAMP_TIME); Beam_test_ints = 0; Beam_test_framecount = 0; } else { if(timestamp_elapsed(Beam_test_stamp)){ // report the results nprintf(("General", "Performed %f beam ints/frame (%d, %d, %d, %d), over %f seconds\n", (float)Beam_test_ints/(float)Beam_test_framecount, Beam_test_ints, Beam_test_framecount, Beam_test_ship, Beam_test_ast, (float)BEAM_TEST_STAMP_TIME / 1000.0f)); // reset vars Beam_test_stamp = timestamp(BEAM_TEST_STAMP_TIME); Beam_test_ints = 0; Beam_test_ship = 0; Beam_test_ast = 0; Beam_test_framecount = 0; } else { Beam_test_framecount++; } } */ #endif // mprintf(("done beam_move_all_post\n")); } // -----------------------------===========================------------------------------ // BEAM RENDERING FUNCTIONS // -----------------------------===========================------------------------------ // render a beam weapon #define STUFF_VERTICES() do { verts[0]->u = 0.0f; verts[0]->v = 0.0f; verts[1]->u = 1.0f; verts[1]->v = 0.0f; verts[2]->u = 1.0f; verts[2]->v = 1.0f; verts[3]->u = 0.0f; verts[3]->v = 1.0f; } while(0); #define P_VERTICES() do { for(idx=0; idx<4; idx++){ g3_project_vertex(verts[idx]); } } while(0); int poly_beam = 0; float U_offset =0.0f; // beam texture offset -Bobboau void beam_render(beam_weapon_info *bwi, vector *start, vector *shot, float shrink) { // mprintf(("about to render a beam\n")); int idx, s_idx; vertex h1[4]; // halves of a beam section vertex *verts[4] = { &h1[0], &h1[1], &h1[2], &h1[3] }; vector fvec, top1, bottom1, top2, bottom2; float scale; float u_scale; // beam tileing -Bobboau float length; // beam tileing -Bobboau memset(h1,0,sizeof(vertex)*4); // bogus weapon info index if(bwi == NULL){ return; } // if the beam start and endpoints are the same if(vm_vec_same(start, shot)){ return; } // get beam direction vm_vec_sub(&fvec, shot, start); vm_vec_normalize_quick(&fvec); // turn off backface culling gr_set_cull(0); // draw all sections for(s_idx=0; s_idxbeam_num_sections; s_idx++){ // calculate the beam points scale = frand_range(1.0f - bwi->sections[s_idx].flicker, 1.0f + bwi->sections[s_idx].flicker); beam_calc_facing_pts(&top1, &bottom1, &fvec, start, bwi->sections[s_idx].width * scale * shrink, bwi->sections[s_idx].z_add); beam_calc_facing_pts(&top2, &bottom2, &fvec, shot, bwi->sections[s_idx].width * scale * scale * shrink, bwi->sections[s_idx].z_add); if(Cmdline_nohtl){ g3_rotate_vertex(verts[0], &bottom1); g3_rotate_vertex(verts[1], &bottom2); g3_rotate_vertex(verts[2], &top2); g3_rotate_vertex(verts[3], &top1); }else{ g3_transfer_vertex(verts[0], &bottom1); g3_transfer_vertex(verts[1], &bottom2); g3_transfer_vertex(verts[2], &top2); g3_transfer_vertex(verts[3], &top1); } P_VERTICES(); STUFF_VERTICES(); // stuff the beam with creamy goodness (texture coords) //U_offset = ( ( ((float)timestamp() * bwi->sections[s_idx].translation)/1000.0f) - (float)(timestamp() * (int)bwi->sections[s_idx].translation /1000)); length = vm_vec_dist(start, shot); // beam tileing -Bobboau if (bwi->sections[s_idx].tile_type == 1){ u_scale = length / (bwi->sections[s_idx].width /2) / bwi->sections[s_idx].tile_factor; // beam tileing, might make a tileing factor in beam index later -Bobboau }else{ u_scale = bwi->sections[s_idx].tile_factor; } verts[1]->u = (u_scale + (U_offset * bwi->sections[s_idx].translation)); // beam tileing -Bobboau verts[2]->u = (u_scale + (U_offset * bwi->sections[s_idx].translation)); // beam tileing -Bobboau verts[3]->u = (0 + (U_offset * bwi->sections[s_idx].translation)); verts[0]->u = (0 + (U_offset * bwi->sections[s_idx].translation)); float per = 1.0f; if(bwi->range)per -= length / bwi->range; //this should never happen but, just to be safe if(per > 1.0f)per = 1.0f; if(per < 0.0f)per = 0.0f; verts[1]->r = (ubyte)(255 * per); verts[2]->r = (ubyte)(255 * per); verts[1]->g = (ubyte)(255 * per); verts[2]->g = (ubyte)(255 * per); verts[1]->b = (ubyte)(255 * per); verts[2]->b = (ubyte)(255 * per); verts[1]->a = (ubyte)(255 * per); verts[2]->a = (ubyte)(255 * per); verts[0]->r = 255; verts[3]->r = 255; verts[0]->g = 255; verts[3]->g = 255; verts[0]->b = 255; verts[3]->b = 255; verts[0]->a = 255; verts[3]->a = 255; // set the right texture with additive alpha, and draw the poly gr_set_bitmap(bwi->sections[s_idx].texture, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 0.9999f); if(Cmdline_nohtl)g3_draw_poly( 4, verts, TMAP_FLAG_TEXTURED | TMAP_FLAG_RGB | TMAP_FLAG_GOURAUD | TMAP_FLAG_TILED | TMAP_FLAG_CORRECT); else g3_draw_poly( 4, verts, TMAP_FLAG_TEXTURED | TMAP_FLAG_RGB | TMAP_FLAG_GOURAUD | TMAP_FLAG_TILED | TMAP_FLAG_CORRECT | TMAP_HTL_3D_UNLIT); // added TMAP_FLAG_TILED flag for beam texture tileing -Bobboau // added TMAP_FLAG_RGB and TMAP_FLAG_GOURAUD so the beam would apear to fade along it's length-Bobboau } // turn backface culling back on gr_set_cull(1); // mprintf(("it should have rendered\n")); } // generate particles for the muzzle glow int hack_time = 100; DCF(h_time, "") { dc_get_arg(ARG_INT); hack_time = Dc_arg_int; } void beam_generate_muzzle_particles(beam *b) { int particle_count; int idx; weapon_info *wip; vector turret_norm, turret_pos, particle_pos, particle_dir, p_temp; matrix m; particle_info pinfo; // if our hack stamp has expired if(!((b->Beam_muzzle_stamp == -1) || timestamp_elapsed(b->Beam_muzzle_stamp))){ return; } // never generate anything past about 1/5 of the beam fire time if(b->warmup_stamp == -1){ return; } // get weapon info wip = &Weapon_info[b->weapon_info_index]; // no specified particle for this beam weapon if(wip->b_info.beam_particle_ani < 0){ return; } // reset the hack stamp b->Beam_muzzle_stamp = timestamp(hack_time); // randomly generate 10 to 20 particles particle_count = (int)frand_range(0.0f, (float)wip->b_info.beam_particle_count); // get turret info - position and normal // turret_pos = b->last_start; // vm_vec_sub(&turret_norm, &b->last_start,&b->last_shot); // vm_vec_normalize(&turret_norm); //turret_pos = b->subsys->system_info->turret_firing_point[b->subsys->turret_next_fire_pos % b->subsys->system_info->turret_num_firing_points]; // turret_pos = b->subsys->system_info->pnt; turret_pos = b->local_pnt; turret_norm = b->subsys->system_info->turret_norm; // randomly perturb a vector within a cone around the normal vm_vector_2_matrix(&m, &turret_norm, NULL, NULL); for(idx=0; idxb_info.beam_particle_angle, &m); p_temp = turret_pos; vm_vec_scale_add(&p_temp, &turret_pos, &particle_dir, wip->b_info.beam_muzzle_radius * frand_range(0.75f, 0.9f)); // transform into world coords vm_vec_unrotate(&particle_pos, &p_temp, &b->objp->orient); vm_vec_add2(&particle_pos, &b->objp->pos); p_temp = particle_dir; vm_vec_unrotate(&particle_dir, &p_temp, &b->objp->orient); // now generate some interesting values for the particle float p_time_ref = wip->b_info.beam_life + ((float)wip->b_info.beam_warmup / 1000.0f); float p_life = frand_range(p_time_ref * 0.5f, p_time_ref * 0.7f); float p_vel = (wip->b_info.beam_muzzle_radius / p_life) * frand_range(0.85f, 1.2f); vm_vec_scale(&particle_dir, -p_vel); memset(&pinfo, 0, sizeof(particle_info)); pinfo.pos = particle_pos; pinfo.vel = particle_dir; pinfo.lifetime = p_life; pinfo.attached_objnum = -1; pinfo.attached_sig = 0; pinfo.rad = wip->b_info.beam_particle_radius; pinfo.reverse = 1; pinfo.type = PARTICLE_BITMAP; pinfo.optional_data = wip->b_info.beam_particle_ani; pinfo.tracer_length = -1.0f; particle_create(&pinfo); } } // render the muzzle glow for a beam weapon void beam_render_muzzle_glow(beam *b) { vertex v; weapon_info *wip = &Weapon_info[b->weapon_info_index]; beam_weapon_info *bwi = &Weapon_info[b->weapon_info_index].b_info; float pct, rand_val; // if we don't have a glow bitmap if(bwi->beam_glow_bitmap < 0){ return; } // if the beam is warming up, scale the glow if(b->warmup_stamp != -1){ // get warmup pct pct = BEAM_WARMUP_PCT(b); rand_val = 1.0f; } else // if the beam is warming down if(b->warmdown_stamp != -1){ // get warmup pct pct = 1.0f - BEAM_WARMDOWN_PCT(b); rand_val = 1.0f; } // otherwise the beam is really firing else { pct = 1.0f; rand_val = frand_range(0.90f, 1.0f); } // draw the bitmap vertex pt; g3_rotate_vertex(&v, &b->last_start); if(!Cmdline_nohtl)g3_transfer_vertex(&pt, &b->last_start); else pt = v; float rad = wip->b_info.beam_muzzle_radius * pct * rand_val; gr_set_bitmap( bwi->beam_glow_bitmap, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 0.8f * pct); // draw 1 bitmap g3_draw_bitmap(&pt, 0, rad, (Cmdline_nohtl)?TMAP_FLAG_TEXTURED:TMAP_FLAG_TEXTURED|TMAP_HTL_3D_UNLIT); // maybe draw more if(pct > 0.3f){ g3_draw_bitmap(&pt, 0, rad * 0.75f, (Cmdline_nohtl)?TMAP_FLAG_TEXTURED:TMAP_FLAG_TEXTURED|TMAP_HTL_3D_UNLIT, rad * 0.25f); } if(pct > 0.5f){ g3_draw_bitmap(&pt, 0, rad * 0.45f, (Cmdline_nohtl)?TMAP_FLAG_TEXTURED:TMAP_FLAG_TEXTURED|TMAP_HTL_3D_UNLIT, rad * 0.55f); } if(pct > 0.7f){ g3_draw_bitmap(&pt, 0, rad * 0.25f, (Cmdline_nohtl)?TMAP_FLAG_TEXTURED:TMAP_FLAG_TEXTURED|TMAP_HTL_3D_UNLIT, rad * 0.75f); } } // render all beam weapons void beam_render_all() { beam *moveup; U_offset = U_offset + flFrametime; //moves the U value of texture coods in beams if desired-Bobboau if(U_offset > 1.0f){ U_offset = U_offset - 1.0f; //keeps it below 1.0-Bobboau } // traverse through all active beams moveup = GET_FIRST(&Beam_used_list); while(moveup != END_OF_LIST(&Beam_used_list)){ // each beam type renders a little bit differently if((moveup->warmup_stamp == -1) && (moveup->warmdown_stamp == -1) && !(moveup->flags & BF_SAFETY)){ // HACK - if this is the first frame the beam is firing, don't render it if(moveup->life_left >= moveup->life_total - 0.0001f){ moveup = GET_NEXT(moveup); continue; } // render the beam itself Assert(moveup->weapon_info_index >= 0); if(moveup->weapon_info_index < 0){ moveup = GET_NEXT(moveup); continue; } beam_render(&Weapon_info[moveup->weapon_info_index].b_info, &moveup->last_start, &moveup->last_shot, moveup->shrink); } // render the muzzle glow beam_render_muzzle_glow(moveup); // maybe generate some muzzle particles beam_generate_muzzle_particles(moveup); // next item moveup = GET_NEXT(moveup); } } // output top and bottom vectors // fvec == forward vector (eye viewpoint basically. in world coords) // pos == world coordinate of the point we're calculating "around" // w == width of the diff between top and bottom around pos void beam_calc_facing_pts( vector *top, vector *bot, vector *fvec, vector *pos, float w, float z_add ) { vector uvec, rvec; vector temp; temp = *pos; vm_vec_sub( &rvec, &Eye_position, &temp ); vm_vec_normalize( &rvec ); vm_vec_crossprod(&uvec,fvec,&rvec); vm_vec_normalize(&uvec); vm_vec_scale_add( top, &temp, &uvec, w/2.0f ); vm_vec_scale_add( bot, &temp, &uvec, -w/2.0f ); } // light scale factor float blight = 25.5f; DCF(blight, "") { dc_get_arg(ARG_FLOAT); blight = Dc_arg_float; } // call to add a light source to a small object void beam_add_light_small(beam *bm, object *objp, vector *pt_override = NULL) { weapon_info *wip; beam_weapon_info *bwi; float noise; // no lighting if(!Beam_lighting){ return; } // sanity Assert(bm != NULL); if(bm == NULL){ return; } Assert(objp != NULL); if(objp == NULL){ return; } Assert(bm->weapon_info_index >= 0); wip = &Weapon_info[bm->weapon_info_index]; bwi = &wip->b_info; // some noise noise = frand_range(1.0f - bwi->sections[0].flicker, 1.0f + bwi->sections[0].flicker); // widest part of the beam float light_rad = beam_get_widest(bm) * blight * noise; // nearest point on the beam, and its distance to the ship vector near_pt; if(pt_override == NULL){ float dist; vm_vec_dist_to_line(&objp->pos, &bm->last_start, &bm->last_shot, &near_pt, &dist); if(dist > light_rad){ return; } } else { near_pt = *pt_override; } // average rgb of the beam float fr = (float)wip->laser_color_1.red / 255.0f; float fg = (float)wip->laser_color_1.green / 255.0f; float fb = (float)wip->laser_color_1.blue / 255.0f; // add a unique light // noise *= 0.1f; // a little less noise here, since we want the beam to generally cast a bright light light_add_point_unique(&near_pt, light_rad * 0.0001f, light_rad, 1.0f, fr, fg, fb, OBJ_INDEX(objp)); } // call to add a light source to a large object void beam_add_light_large(beam *bm, object *objp, vector *pt0, vector *pt1) { weapon_info *wip; beam_weapon_info *bwi; float noise; // no lighting if(!Beam_lighting){ return; } // sanity Assert(bm != NULL); if(bm == NULL){ return; } Assert(objp != NULL); if(objp == NULL){ return; } Assert(bm->weapon_info_index >= 0); wip = &Weapon_info[bm->weapon_info_index]; bwi = &wip->b_info; // some noise noise = frand_range(1.0f - bwi->sections[0].flicker, 1.0f + bwi->sections[0].flicker); // widest part of the beam float light_rad = beam_get_widest(bm) * blight * noise; // average rgb of the beam float fr = (float)wip->laser_color_1.red / 255.0f; float fg = (float)wip->laser_color_1.green / 255.0f; float fb = (float)wip->laser_color_1.blue / 255.0f; // add a unique light noise *= 0.1f; // a little less noise here, since we want the beam to generally cast a bright light light_add_tube(pt0, pt1, 1.0f, light_rad, 1.0f * noise, fr, fg, fb, OBJ_INDEX(objp)); } // mark an object as being lit void beam_add_light(beam *b, int objnum, int source, vector *c_point) { beam_light_info *l; // if we're out of light slots! if(Beam_light_count >= MAX_BEAM_LIGHT_INFO){ // Int3(); return; } // otherwise add it l = &Beam_lights[Beam_light_count++]; l->bm = b; l->objnum = objnum; l->source = (ubyte)source; // only type 2 lights (from collisions) need a collision point if(c_point != NULL){ l->c_point = *c_point; } else { Assert(source != 2); if(source == 2){ Beam_light_count--; } } } // apply lighting from any beams void beam_apply_lighting() { int idx; beam_light_info *l; vector pt, dir; beam_weapon_info *bwi; // convert all beam lights into real lights for(idx=0; idxobjnum < 0) || (l->objnum >= MAX_OBJECTS) || (l->bm == NULL)){ continue; } bwi = &Weapon_info[l->bm->weapon_info_index].b_info; // different light types switch(l->source){ // from the muzzle of the gun case 0: // a few meters in from the of muzzle vm_vec_sub(&dir, &l->bm->last_start, &l->bm->last_shot); vm_vec_normalize_quick(&dir); vm_vec_scale_add(&pt, &l->bm->last_start, &dir, bwi->beam_muzzle_radius * 5.0f); beam_add_light_small(l->bm, &Objects[l->objnum], &pt); break; // from the beam passing by case 1: // object type switch(Objects[l->objnum].type){ case OBJ_SHIP: Assert(Objects[l->objnum].instance >= 0); // large ships if(Ship_info[Ships[Objects[l->objnum].instance].ship_info_index].flags & (SIF_BIG_SHIP | SIF_HUGE_SHIP)){ beam_add_light_large(l->bm, &Objects[l->objnum], &l->bm->last_start, &l->bm->last_shot); } // small ships else { beam_add_light_small(l->bm, &Objects[l->objnum]); } break; // asteroids get small lights case OBJ_ASTEROID: beam_add_light_small(l->bm, &Objects[l->objnum]); break; // debris gets small lights case OBJ_DEBRIS: beam_add_light_small(l->bm, &Objects[l->objnum]); break; } break; // from a collision case 2: // a few meters from the collision point vm_vec_sub(&dir, &l->bm->last_start, &l->c_point); vm_vec_normalize_quick(&dir); vm_vec_scale_add(&pt, &l->c_point, &dir, bwi->beam_muzzle_radius * 5.0f); beam_add_light_small(l->bm, &Objects[l->objnum], &pt); break; } } } // -----------------------------===========================------------------------------ // BEAM BOOKKEEPING FUNCTIONS // -----------------------------===========================------------------------------ // delete a beam void beam_delete(beam *b) { // remove from active list and put on free list list_remove(&Beam_used_list, b); list_append(&Beam_free_list, b); // delete our associated object // Assert(b->objnum >= 0); if(b->objnum >= 0){ obj_delete(b->objnum); } b->objnum = -1; // kill the beam looping sound if(b->beam_sound_loop != -1){ snd_stop(b->beam_sound_loop); b->beam_sound_loop = -1; } // subtract one Beam_count--; Assert(Beam_count >= 0); nprintf(("General", "Recycled beam (%d beams remaining)\n", Beam_count)); } // given an object, return its model num int beam_get_model(object *objp) { int subtype; Assert(objp->instance >= 0); if(objp->instance < 0){ return -1; } subtype = 0; switch(objp->type){ case OBJ_SHIP: return Ships[objp->instance].modelnum; case OBJ_WEAPON: Assert(Weapons[objp->instance].weapon_info_index >= 0); if(Weapons[objp->instance].weapon_info_index < 0){ return -1; } return Weapon_info[Weapons[objp->instance].weapon_info_index].model_num; case OBJ_DEBRIS: Assert(Debris[objp->instance].is_hull); if(!Debris[objp->instance].is_hull){ return -1; } return Debris[objp->instance].model_num; #ifndef FS2_DEMO case OBJ_ASTEROID: subtype = Asteroids[objp->instance].asteroid_subtype; Assert(Asteroids[objp->instance].type >= 0); if(Asteroids[objp->instance].type < 0){ return -1; } return Asteroid_info[Asteroids[objp->instance].type].model_num[subtype]; #endif default: // this shouldn't happen too often mprintf(("Beam couldn't find a good find a good object model/type!! (%d)", objp->type)); return -1; } // can't happen Int3(); return -1; } // start the warmup phase for the beam void beam_start_warmup(beam *b) { // set the warmup stamp b->warmup_stamp = timestamp(Weapon_info[b->weapon_info_index].b_info.beam_warmup); // start playing warmup sound if(!(Game_mode & GM_STANDALONE_SERVER) && (Weapon_info[b->weapon_info_index].b_info.beam_warmup_sound >= 0)){ snd_play_3d(&Snds[Weapon_info[b->weapon_info_index].b_info.beam_warmup_sound], &b->last_start, &View_position); } } // start the firing phase for the beam, return 0 if the beam failed to start, and should be deleted altogether int beam_start_firing(beam *b) { // kill the warmup stamp so the rest of the code knows its firing b->warmup_stamp = -1; // any special stuff for each weapon type switch(b->type){ // re-aim type A and D beam weapons here, otherwise they tend to miss case BEAM_TYPE_A: case BEAM_TYPE_D: beam_aim(b); break; case BEAM_TYPE_B: break; case BEAM_TYPE_C: break; case BEAM_TYPE_E: break; default: Int3(); } // determine if we can legitimately start firing, or if we need to take other action switch(beam_ok_to_fire(b)){ case -1 : return 0; case 0 : beam_start_warmdown(b); return 1; } // start the beam firing sound now, if we haven't already if((b->beam_sound_loop == -1) && (Weapon_info[b->weapon_info_index].b_info.beam_loop_sound >= 0)){ b->beam_sound_loop = snd_play_3d(&Snds[Weapon_info[b->weapon_info_index].b_info.beam_loop_sound], &b->last_start, &View_position, 0.0f, NULL, 1, 1.0, SND_PRIORITY_SINGLE_INSTANCE, NULL, 1.0f, 1); // "shot" sound snd_play_3d(&Snds[SND_BEAM_SHOT], &b->last_start, &View_position); //I'm sorry this thing has always pissed me off -Bobboau // GAH - Bobboau, for goodness sake don't delete things flippantly. If you want to change this kind of thing, add // command-line behavior like Phreak did for his targeting stuff. The code is not yours to tromp all over like this. -- Goober5000 } // success return 1; } // start the warmdown phase for the beam void beam_start_warmdown(beam *b) { // timestamp b->warmdown_stamp = timestamp(Weapon_info[b->weapon_info_index].b_info.beam_warmdown); // start the warmdown sound if(Weapon_info[b->weapon_info_index].b_info.beam_warmdown_sound >= 0){ snd_play_3d(&Snds[Weapon_info[b->weapon_info_index].b_info.beam_warmdown_sound], &b->last_start, &View_position); } // kill the beam looping sound if(b->beam_sound_loop != -1){ snd_stop(b->beam_sound_loop); b->beam_sound_loop = -1; } } // recalculate beam sounds (looping sounds relative to the player) void beam_recalc_sounds(beam *b) { beam_weapon_info *bwi; vector pos; Assert(b->weapon_info_index >= 0); if(b->weapon_info_index < 0){ return; } bwi = &Weapon_info[b->weapon_info_index].b_info; // update the sound position relative to the player if(b->beam_sound_loop != -1){ // get the point closest to the player's viewing position switch(vm_vec_dist_to_line(&View_position, &b->last_start, &b->last_shot, &pos, NULL)){ // behind the beam, so use the start pos case -1: pos = b->last_start; break; // use the closest point case 0: // already calculated in vm_vec_dist_to_line(...) break; // past the beam, so use the shot pos case 1: pos = b->last_shot; break; } snd_update_3d_pos(b->beam_sound_loop, &Snds[bwi->beam_loop_sound], &pos); } } // -----------------------------===========================------------------------------ // BEAM AIMING FUNCTIONS // -----------------------------===========================------------------------------ // fills in binfo void beam_get_binfo(beam *b, float accuracy, int num_shots) { vector p2; int model_num, idx; vector oct1, oct2; vector turret_point, turret_norm; beam_weapon_info *bwi; int skill_level; // where the shot is originating from (b->last_start gets filled in) beam_get_global_turret_gun_info(b->objp, b->subsys, &turret_point, &turret_norm, 1, &p2, b->fighter_beam); // get a model # to work with model_num = beam_get_model(b->target); if(model_num < 0){ return; } // get beam weapon info Assert(b->weapon_info_index >= 0); if(b->weapon_info_index < 0){ return; } bwi = &Weapon_info[b->weapon_info_index].b_info; // skill level skill_level = Game_skill_level; if(Game_skill_level >= NUM_SKILL_LEVELS){ skill_level = NUM_SKILL_LEVELS - 1; } if(Game_skill_level < 0){ skill_level = 0; } // stuff num shots even though its only used for type D weapons b->binfo.shot_count = (ubyte)num_shots; if(b->binfo.shot_count > MAX_BEAM_SHOTS){ b->binfo.shot_count = MAX_BEAM_SHOTS; } // generate the proper amount of directional vectors switch(b->type){ // pick an accuracy. beam will be properly aimed at actual fire time case BEAM_TYPE_A: // all we will do is decide whether or not we will hit - type A beam weapons are re-aimed immediately before firing b->binfo.shot_aim[0] = frand_range(0.0f, 1.0f + bwi->beam_miss_factor[skill_level] * accuracy); b->binfo.shot_count = 1; // get random model points, this is useful for big ships, because we never miss when shooting at them submodel_get_two_random_points(model_num, 0, &b->binfo.dir_a, &b->binfo.dir_b); break; // just 2 points in the "slash" case BEAM_TYPE_B: beam_get_octant_points(model_num, b->target, (int)frand_range(0.0f, BEAM_NUM_GOOD_OCTANTS), Beam_good_slash_octants, &oct1, &oct2); // point 1 vm_vec_sub(&b->binfo.dir_a, &oct1, &turret_point); vm_vec_normalize(&b->binfo.dir_a); // point 2 vm_vec_sub(&b->binfo.dir_b, &oct2, &turret_point); vm_vec_normalize(&b->binfo.dir_b); // delta angle b->binfo.delta_ang = fl_abs(vm_vec_delta_ang_norm(&b->binfo.dir_a, &b->binfo.dir_b, NULL)); break; // nothing for this beam - its very special case case BEAM_TYPE_C: break; // type D beams fire at small ship multiple times case BEAM_TYPE_D: // get a bunch of shot aims for(idx=0; idxbinfo.shot_count; idx++){ // MK, 9/3/99: Added pow() function to make increasingly likely to miss with subsequent shots. 30% more likely with each shot. float r = ((float) pow(1.3f, idx)) * bwi->beam_miss_factor[skill_level] * accuracy; b->binfo.shot_aim[idx] = frand_range(0.0f, 1.0f + r); } break; // type e beams just fire straight case BEAM_TYPE_E: b->binfo.shot_aim[0] = 0.0000001f; b->binfo.shot_count = 1; b->binfo.dir_a = turret_norm; b->binfo.dir_b = turret_norm; break; default: break; } } // aim the beam (setup last_start and last_shot - the endpoints). also recalculates collision pairs void beam_aim(beam *b) { vector temp, p2; int model_num; // type C beam weapons have no target if(b->target == NULL){ Assert(b->type == BEAM_TYPE_C); if(b->type != BEAM_TYPE_C){ return; } } // get a model # to work with else { model_num = beam_get_model(b->target); if(model_num < 0){ return; } } // setup our initial shot point and aim direction switch(b->type){ case BEAM_TYPE_A: // where the shot is originating from (b->last_start gets filled in) beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &p2, b->fighter_beam); // if we're targeting a subsystem - shoot directly at it if(b->target_subsys != NULL){ // unrotate the center of the subsystem // vm_vec_unrotate(&b->last_shot, &b->local_pnt, &b->target->orient); vm_vec_unrotate(&b->last_shot, &b->target_subsys->system_info->pnt, &b->target->orient); vm_vec_add2(&b->last_shot, &b->target->pos); vm_vec_sub(&temp, &b->last_shot, &b->last_start); vm_vec_scale_add(&b->last_shot, &b->last_start, &temp, 2.0f); break; } // if we're shooting at a big ship - shoot directly at the model if((b->target->type == OBJ_SHIP) && (Ship_info[Ships[b->target->instance].ship_info_index].flags & (SIF_BIG_SHIP | SIF_HUGE_SHIP))){ // rotate into world coords vm_vec_unrotate(&temp, &b->binfo.dir_a, &b->target->orient); vm_vec_add2(&temp, &b->target->pos); // get the shot point vm_vec_sub(&p2, &temp, &b->last_start); vm_vec_scale_add(&b->last_shot, &b->last_start, &p2, 2.0f); break; } // point at the center of the target, then jitter based on shot_aim b->last_shot = b->target->pos; beam_jitter_aim(b, b->binfo.shot_aim[0]); break; case BEAM_TYPE_B: // where the shot is originating from (b->last_start gets filled in) beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &p2, b->fighter_beam); // set the shot point vm_vec_scale_add(&b->last_shot, &b->last_start, &b->binfo.dir_a, b->range); Assert(is_valid_vec(&b->last_shot)); break; case BEAM_TYPE_C: // start point temp = b->targeting_laser_offset; vm_vec_unrotate(&b->last_start, &temp, &b->objp->orient); vm_vec_add2(&b->last_start, &b->objp->pos); vm_vec_scale_add(&b->last_shot, &b->last_start, &b->objp->orient.vec.fvec, b->range); break; case BEAM_TYPE_D: // where the shot is originating from (b->last_start gets filled in) beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &p2, b->fighter_beam); // point at the center of the target, then jitter based on shot_aim b->last_shot = b->target->pos; beam_jitter_aim(b, b->binfo.shot_aim[b->shot_index]); nprintf(("AI", "Frame %i: FIRING\n", Framecount)); break; case BEAM_TYPE_E: // where the shot is originating from (b->last_start gets filled in) beam_get_global_turret_gun_info(b->objp, b->subsys, &b->last_start, &temp, 1, &p2, b->fighter_beam); // point directly in the direction of the turret vm_vec_scale_add(&b->last_shot, &b->last_start, &temp, b->range); break; default: Int3(); } // recalculate object pairs OBJ_RECALC_PAIRS((&Objects[b->objnum])); } // given a model #, and an object, stuff 2 good world coord points void beam_get_octant_points(int modelnum, object *objp, int oct_index, int oct_array[BEAM_NUM_GOOD_OCTANTS][4], vector *v1, vector *v2) { vector t1, t2, temp; polymodel *m = model_get(modelnum); // bad bad bad bad bad bad if(m == NULL){ Int3(); return; } Assert((oct_index >= 0) && (oct_index < BEAM_NUM_GOOD_OCTANTS)); // randomly pick octants t1 = oct_array[oct_index][2] ? m->octants[oct_array[oct_index][0]].max : m->octants[oct_array[oct_index][0]].min; t2 = oct_array[oct_index][3] ? m->octants[oct_array[oct_index][1]].max : m->octants[oct_array[oct_index][1]].min; Assert(!vm_vec_same(&t1, &t2)); // get them in world coords vm_vec_unrotate(&temp, &t1, &objp->orient); vm_vec_add(v1, &temp, &objp->pos); vm_vec_unrotate(&temp, &t2, &objp->orient); vm_vec_add(v2, &temp, &objp->pos); } // throw some jitter into the aim - based upon shot_aim void beam_jitter_aim(beam *b, float aim) { vector forward, circle; matrix m; float subsys_strength; // if the weapons subsystem is damaged or destroyed if((b->objp != NULL) && (b->objp->signature == b->sig) && (b->objp->type == OBJ_SHIP) && (b->objp->instance >= 0) && (b->objp->instance < MAX_SHIPS)){ // get subsytem strength subsys_strength = ship_get_subsystem_strength(&Ships[b->objp->instance], SUBSYSTEM_WEAPONS); // when subsytem strength is 0, double the aim error factor aim += aim * (1.0f - subsys_strength); } // shot aim is a direct linear factor of the target model's radius. // so, pick a random point on the circle vm_vec_sub(&forward, &b->last_shot, &b->last_start); vm_vec_normalize_quick(&forward); // vector vm_vector_2_matrix(&m, &forward, NULL, NULL); // get a vector on the circle - this should appear to be pretty random // vm_vec_scale_add(&circle, &b->last_shot, &m.rvec, aim * b->target->radius); vm_vec_random_in_circle(&circle, &b->last_shot, &m, aim * b->target->radius, 0); // get the vector pointing to the circle point vm_vec_sub(&forward, &circle, &b->last_start); vm_vec_scale_add(&b->last_shot, &b->last_start, &forward, 2.0f); } // -----------------------------===========================------------------------------ // BEAM COLLISION FUNCTIONS // -----------------------------===========================------------------------------ // collide a beam with a ship, returns 1 if we can ignore all future collisions between the 2 objects int beam_collide_ship(obj_pair *pair) { // SHUT UP! -- Kazan -- This is massively slowing debug builds down //mprintf(("about to do beam colision\n")); beam *b; ship *shipp; ship_info *sip; mc_info test_collide; int model_num, quad; float widest; weapon_info *bwi; // bogus if(pair == NULL){ return 0; } // get the beam Assert(pair->a->instance >= 0); Assert(pair->a->type == OBJ_BEAM); Assert(Beams[pair->a->instance].objnum == OBJ_INDEX(pair->a)); b = &Beams[pair->a->instance]; // Don't check collisions for warping out player if past stage 1. if ( Player->control_mode >= PCM_WARPOUT_STAGE1) { if ( pair->a == Player_obj ) return 0; if ( pair->b == Player_obj ) return 0; } // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return 0; } // if the beam is on "safety", don't collide with anything if(b->flags & BF_SAFETY){ return 0; } // if the colliding object is the shooting object, return 1 so this is culled if(pair->b == b->objp){ return 1; } // try and get a model model_num = beam_get_model(pair->b); if(model_num < 0){ // Int3(); return 1; } #ifndef NDEBUG Beam_test_ints++; Beam_test_ship++; #endif // bad Assert(pair->b->type == OBJ_SHIP); Assert(pair->b->instance >= 0); if((pair->b->type != OBJ_SHIP) || ((pair->b->instance) < 0)){ return 1; } shipp = &Ships[pair->b->instance]; sip = &Ship_info[shipp->ship_info_index]; // get the widest portion of the beam widest = beam_get_widest(b); // do the collision test_collide.model_num = model_num; test_collide.submodel_num = -1; test_collide.orient = &pair->b->orient; test_collide.pos = &pair->b->pos; test_collide.p0 = &b->last_start; test_collide.p1 = &b->last_shot; bwi = &Weapon_info[b->weapon_info_index]; polymodel *pm = model_get(model_num); // maybe do a sphere line if(widest > pair->b->radius * BEAM_AREA_PERCENT){ test_collide.radius = beam_get_widest(b) * 0.5f; //if the shields have any juice check them otherwise check the model if ( !(bwi->wi_flags2 & WIF2_PIERCE_SHIELDS) && (get_shield_strength(&Objects[shipp->objnum])) && (bwi->shield_factor >= 0) && ((pm->shield.ntris > 0) && (pm->shield.nverts > 0)) ){ //check shields for beams wich have a positive shield factor -Bobboau // mprintf(("I think this ship has shields\n")); test_collide.flags = MC_CHECK_SHIELD | MC_CHECK_SPHERELINE; }else{ // mprintf(("I'm checking the model\n")); test_collide.flags = MC_CHECK_MODEL | MC_CHECK_SPHERELINE; } } else { if ( !(bwi->wi_flags2 & WIF2_PIERCE_SHIELDS) && (get_shield_strength(&Objects[shipp->objnum])) && (bwi->shield_factor >= 0) ){ //check shields for type c beams -Bobboau // mprintf(("there is a shield, isn't it\n")); test_collide.flags = MC_CHECK_SHIELD | MC_CHECK_RAY; }else{ // mprintf(("the model is being checked\n")); test_collide.flags = MC_CHECK_MODEL | MC_CHECK_RAY; } } model_collide(&test_collide); quad = -1; if(test_collide.flags & MC_CHECK_SHIELD) //if we're checking shields { quad = get_quadrant(&test_collide.hit_point);//find which quadrant we hit //mprintf(("the thing I hit was hit in quadrant %d\n", quad)); //then if the beam does more damage than that quadrant can take if(Objects[shipp->objnum].shield_quadrant[quad] < (bwi->damage * bwi->shield_factor * 2.0f)) //if(!(ship_is_shield_up(&Objects[shipp->objnum], get_quadrant(&test_collide.hit_point)))) { //go through the shield and hit the hull -Bobboau if(widest > pair->b->radius * BEAM_AREA_PERCENT) { test_collide.radius = beam_get_widest(b) * 0.5f; test_collide.flags = MC_CHECK_MODEL | MC_CHECK_SPHERELINE; } else { test_collide.flags = MC_CHECK_MODEL | MC_CHECK_RAY; } model_collide(&test_collide); } else { quad = -1; } } // if we got a hit if(test_collide.num_hits) { // add to the collision list beam_add_collision(b, pair->b, &test_collide); // if we went through the shield //Goober5000 - nope, not sure what I was thinking for this //if (quad != -1) //{ // Objects[shipp->objnum].shield_quadrant[quad] = 0.0f; // Bobboau's addition: now works correctly //} } // add this guy to the lighting list beam_add_light(b, OBJ_INDEX(pair->b), 1, NULL); // reset timestamp to timeout immediately pair->next_check_time = timestamp(0); /* decal_point dec; dec.orient.vec = test_collide.orient->vec; dec.pnt = test_collide.hit_point; dec.radius = bwi->impact_explosion_radius*2; decal_create_simple(&Objects[shipp->objnum], &dec, bwi->b_info.beam_glow_bitmap); */ // mprintf(("a decal should have been made at %0.2f %0.2f %0.2f", dec.pnt.xyz.x, dec.pnt.xyz.y, dec.pnt.xyz.z)); return 0; } // collide a beam with an asteroid, returns 1 if we can ignore all future collisions between the 2 objects int beam_collide_asteroid(obj_pair *pair) { beam *b; mc_info test_collide; int model_num; // bogus if(pair == NULL){ return 0; } // get the beam Assert(pair->a->instance >= 0); Assert(pair->a->type == OBJ_BEAM); Assert(Beams[pair->a->instance].objnum == OBJ_INDEX(pair->a)); b = &Beams[pair->a->instance]; // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return 0; } // if the beam is on "safety", don't collide with anything if(b->flags & BF_SAFETY){ return 0; } // if the colliding object is the shooting object, return 1 so this is culled if(pair->b == b->objp){ return 1; } // try and get a model model_num = beam_get_model(pair->b); if(model_num < 0){ Int3(); return 1; } #ifndef NDEBUG Beam_test_ints++; Beam_test_ast++; #endif // do the collision test_collide.model_num = model_num; test_collide.submodel_num = -1; test_collide.orient = &pair->b->orient; test_collide.pos = &pair->b->pos; test_collide.p0 = &b->last_start; test_collide.p1 = &b->last_shot; test_collide.flags = MC_CHECK_MODEL | MC_CHECK_RAY; model_collide(&test_collide); // if we got a hit if(test_collide.num_hits){ // add to the collision list beam_add_collision(b, pair->b, &test_collide); } // add this guy to the lighting list beam_add_light(b, OBJ_INDEX(pair->b), 1, NULL); // reset timestamp to timeout immediately pair->next_check_time = timestamp(0); return 0; } // collide a beam with a missile, returns 1 if we can ignore all future collisions between the 2 objects int beam_collide_missile(obj_pair *pair) { beam *b; mc_info test_collide; int model_num; // bogus if(pair == NULL){ return 0; } // get the beam Assert(pair->a->instance >= 0); Assert(pair->a->type == OBJ_BEAM); Assert(Beams[pair->a->instance].objnum == OBJ_INDEX(pair->a)); b = &Beams[pair->a->instance]; // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return 0; } // if the beam is on "safety", don't collide with anything if(b->flags & BF_SAFETY){ return 0; } // if the colliding object is the shooting object, return 1 so this is culled if(pair->b == b->objp){ return 1; } // try and get a model model_num = beam_get_model(pair->b); if(model_num < 0){ //Int3(); return 1; } #ifndef NDEBUG Beam_test_ints++; #endif // do the collision test_collide.model_num = model_num; test_collide.submodel_num = -1; test_collide.orient = &pair->b->orient; test_collide.pos = &pair->b->pos; test_collide.p0 = &b->last_start; test_collide.p1 = &b->last_shot; test_collide.flags = MC_CHECK_MODEL | MC_CHECK_RAY; model_collide(&test_collide); // if we got a hit if(test_collide.num_hits){ // add to the collision list beam_add_collision(b, pair->b, &test_collide); } // reset timestamp to timeout immediately pair->next_check_time = timestamp(0); return 0; } // collide a beam with debris, returns 1 if we can ignore all future collisions between the 2 objects int beam_collide_debris(obj_pair *pair) { beam *b; mc_info test_collide; int model_num; // bogus if(pair == NULL){ return 0; } // get the beam Assert(pair->a->instance >= 0); Assert(pair->a->type == OBJ_BEAM); Assert(Beams[pair->a->instance].objnum == OBJ_INDEX(pair->a)); b = &Beams[pair->a->instance]; // if the "warming up" timestamp has not expired if((b->warmup_stamp != -1) || (b->warmdown_stamp != -1)){ return 0; } // if the beam is on "safety", don't collide with anything if(b->flags & BF_SAFETY){ return 0; } // if the colliding object is the shooting object, return 1 so this is culled if(pair->b == b->objp){ return 1; } // try and get a model model_num = beam_get_model(pair->b); if(model_num < 0){ // Int3(); return 1; } #ifndef NDEBUG Beam_test_ints++; #endif // do the collision test_collide.model_num = model_num; test_collide.submodel_num = -1; test_collide.orient = &pair->b->orient; test_collide.pos = &pair->b->pos; test_collide.p0 = &b->last_start; test_collide.p1 = &b->last_shot; test_collide.flags = MC_CHECK_MODEL | MC_CHECK_RAY; model_collide(&test_collide); // if we got a hit if(test_collide.num_hits){ // add to the collision list beam_add_collision(b, pair->b, &test_collide); } // add this guy to the lighting list beam_add_light(b, OBJ_INDEX(pair->b), 1, NULL); // reset timestamp to timeout immediately pair->next_check_time = timestamp(0); return 0; } // early-out function for when adding object collision pairs, return 1 if the pair should be ignored int beam_collide_early_out(object *a, object *b) { beam *bm; weapon_info *bwi; float cull_dist, cull_dot; vector dot_test, dot_test2, dist_test; // get the beam Assert(a->instance >= 0); if(a->instance < 0){ return 1; } Assert(a->type == OBJ_BEAM); if(a->type != OBJ_BEAM){ return 1; } Assert(Beams[a->instance].objnum == OBJ_INDEX(a)); if(Beams[a->instance].objnum != OBJ_INDEX(a)){ return 1; } bm = &Beams[a->instance]; Assert(bm->weapon_info_index >= 0); if(bm->weapon_info_index < 0){ return 1; } bwi = &Weapon_info[bm->weapon_info_index]; // if the second object has an invalid instance, bail if(b->instance < 0){ return 1; } if((vm_vec_dist(&bm->last_start, &b->pos)-b->radius) > bwi->b_info.range){ return 1; }//if the object is too far away, don't bother trying to colide with it-Bobboau // baseline bails switch(b->type){ case OBJ_SHIP: break; case OBJ_ASTEROID: // targeting lasers only hit ships /* if(bwi->b_info.beam_type == BEAM_TYPE_C){ return 1; }*/ break; case OBJ_DEBRIS: // targeting lasers only hit ships /* if(bwi->b_info.beam_type == BEAM_TYPE_C){ return 1; }*/ // don't ever collide with non hull pieces if(!Debris[b->instance].is_hull){ return 1; } break; case OBJ_WEAPON: // targeting lasers only hit ships /* if(bwi->b_info.beam_type == BEAM_TYPE_C){ return 1; }*/ // don't ever collide against laser weapons - duh if(Weapon_info[Weapons[b->instance].weapon_info_index].subtype == WP_LASER){ return 1; } break; } // get full cull value beam_get_cull_vals(b, bm, &cull_dot, &cull_dist); // if the object fails these conditions, bail vm_vec_sub(&dist_test, &b->pos, &bm->last_start); dot_test = dist_test; vm_vec_sub(&dot_test2, &bm->last_shot, &bm->last_start); vm_vec_normalize_quick(&dot_test); vm_vec_normalize_quick(&dot_test2); // cull_dist == DIST SQUARED FOO! if((vm_vec_dotprod(&dot_test, &dot_test2) < cull_dot) && (vm_vec_mag_squared(&dist_test) > cull_dist)){ return 1; } // don't cull return 0; } // add a collision to the beam for this frame (to be evaluated later) void beam_add_collision(beam *b, object *hit_object, mc_info *cinfo) { beam_collision *bc; int idx; int quadrant_num = -1; // weapon_info *bwi = &Weapon_info[b->weapon_info_index]; // if we haven't reached the limit for beam collisions, just add if(b->f_collision_count < MAX_FRAME_COLLISIONS){ bc = &b->f_collisions[b->f_collision_count++]; bc->c_objnum = OBJ_INDEX(hit_object); bc->cinfo = *cinfo; /* decal_point dec; vector bfvec; vm_vec_sub(&bfvec, &b->last_shot, &b->last_start); dec.orient.vec.fvec = bfvec;//cinfo->hit_normal; //get a good orientation matrix baised on the normal of the hit face and the orientation of the ship it hit-Bobboau vm_vec_normalize( &dec.orient.vec.fvec ); vm_vec_crossprod( &dec.orient.vec.uvec, &cinfo->hit_normal, &dec.orient.vec.fvec); vm_vec_normalize( &dec.orient.vec.uvec ); vm_vec_crossprod( &dec.orient.vec.rvec, &dec.orient.vec.uvec, &dec.orient.vec.fvec); vm_vec_normalize( &dec.orient.vec.rvec ); dec.pnt = cinfo->hit_point; dec.radius = bwi->decal_rad; // decal_create_simple(hit_object, &dec, bwi->b_info.beam_glow_bitmap);//this is the old decals, not the new/better ones decal_create(hit_object, &dec, bc->cinfo.hit_submodel, bwi->decal_texture, bwi->decal_backface_texture); */ if( (cinfo->flags & MC_CHECK_SHIELD) && cinfo->num_hits ){ //beam shield hit code -Bobboau bc->quadrant= quadrant_num = get_quadrant(&cinfo->hit_point); if (!(hit_object->flags & SF_DYING) ) { add_shield_point(hit_object-Objects, cinfo->shield_hit_tri, &cinfo->hit_point); hud_shield_quadrant_hit(hit_object, quadrant_num); } } else { bc->quadrant=-1; } // done return; } // otherwise, we've got to do some checking, ick. // I guess we can always just remove the farthest item bc = NULL; for(idx=0; idxf_collisions[idx].cinfo.hit_dist > bc->cinfo.hit_dist)){ bc = &b->f_collisions[idx]; } } // copy in Assert(bc != NULL); if(bc == NULL){ return; } bc->c_objnum = OBJ_INDEX(hit_object); bc->cinfo = *cinfo; } // sort collisions for the frame int beam_sort_collisions_func(const void *e1, const void *e2) { beam_collision *b1 = (beam_collision*)e1; beam_collision *b2 = (beam_collision*)e2; return b1->cinfo.hit_dist < b2->cinfo.hit_dist ? -1 : 1; } // handle a hit on a specific object void beam_handle_collisions(beam *b) { int idx, s_idx; beam_collision r_coll[MAX_FRAME_COLLISIONS]; int r_coll_count = 0; beam_weapon_info *bwi; weapon_info *wi; float widest; // early out if we had no collisions if(b->f_collision_count <= 0){ return; } // get beam weapon info if((b->weapon_info_index < 0) || (b->weapon_info_index >= Num_weapon_types)){ Int3(); return; } bwi = &Weapon_info[b->weapon_info_index].b_info; wi = &Weapon_info[b->weapon_info_index]; // get the widest part of the beam widest = beam_get_widest(b); // the first thing we need to do is sort the collisions, from closest to farthest qsort(b->f_collisions, b->f_collision_count, sizeof(beam_collision), beam_sort_collisions_func); // now apply all collisions until we reach a ship which "stops" the beam or we reach the end of the list float dam = wi->damage; for(idx=0; idxf_collision_count; idx++){ int model_num = -1; int do_damage = 0; int first_hit = 1; int target = b->f_collisions[idx].c_objnum; // if we have an invalid object if((target < 0) || (target >= MAX_OBJECTS)){ continue; } //mprintf(("object valid\n")); // try and get a model to deal with model_num = beam_get_model(&Objects[target]); if(model_num < 0){ continue; } //mprintf(("got a model\n")); // add lighting beam_add_light(b, target, 2, &b->f_collisions[idx].cinfo.hit_point_world); //mprintf(("adding a light\n")); // add to the recent collision list r_coll[r_coll_count].c_objnum = target; r_coll[r_coll_count].c_sig = Objects[target].signature; r_coll[r_coll_count].c_stamp = -1; r_coll[r_coll_count].cinfo = b->f_collisions[idx].cinfo; // if he was already on the recent collision list, copy his timestamp // also, be sure not to play the impact sound again. for(s_idx=0; s_idxr_collision_count; s_idx++){ if((r_coll[r_coll_count].c_objnum == b->r_collisions[s_idx].c_objnum) && (r_coll[r_coll_count].c_sig == b->r_collisions[s_idx].c_sig)){ // timestamp r_coll[r_coll_count].c_stamp = b->r_collisions[s_idx].c_stamp; // don't play the impact sound again first_hit = 0; } } //mprintf(("de\n")); // if the damage timestamp has expired or is not set yet, apply damage if((r_coll[r_coll_count].c_stamp == -1) || timestamp_elapsed(r_coll[r_coll_count].c_stamp)){ do_damage = 1; r_coll[r_coll_count].c_stamp = timestamp(BEAM_DAMAGE_TIME); } //mprintf(("ts elapsed\n")); // if no damage - don't even indicate it has been hit if(wi->damage <= 0){ do_damage = 0; } //mprintf(("do nothing\n")); // increment collision count r_coll_count++; // play the impact sound if(first_hit){ snd_play_3d( &Snds[wi->impact_snd], &b->f_collisions[idx].cinfo.hit_point_world, &Eye_position ); } //mprintf(("play the sound\n")); // do damage if(do_damage && !physics_paused){ // mprintf(("doing damage ")); // maybe draw an explosion if(wi->impact_weapon_expl_index >= 0){ int ani_handle = weapon_get_expl_handle(wi->impact_weapon_expl_index, &b->f_collisions[idx].cinfo.hit_point_world, wi->impact_explosion_radius); particle_create( &b->f_collisions[idx].cinfo.hit_point_world, &vmd_zero_vector, 0.0f, wi->impact_explosion_radius, PARTICLE_BITMAP_PERSISTENT, ani_handle ); } switch(Objects[target].type){ case OBJ_DEBRIS: // mprintf(("beams hitting debris\n")); // hit the debris - the debris hit code takes care of checking for MULTIPLAYER_CLIENT, etc debris_hit(&Objects[target], &Objects[b->objnum], &b->f_collisions[idx].cinfo.hit_point_world, Weapon_info[b->weapon_info_index].damage); break; case OBJ_WEAPON: // mprintf(("beams hitting a weapon\n")); // detonate the missile Assert(Weapon_info[Weapons[Objects[target].instance].weapon_info_index].subtype == WP_MISSILE); #ifndef NO_NETWORK if(!(Game_mode & GM_MULTIPLAYER) || MULTIPLAYER_MASTER) #endif { weapon_hit(&Objects[target], NULL, &Objects[target].pos); } break; case OBJ_ASTEROID: // mprintf(("beam hitting a asteroid\n")); // hit the asteroid #ifndef NO_NETWORK if(!(Game_mode & GM_MULTIPLAYER) || MULTIPLAYER_MASTER) #endif { asteroid_hit(&Objects[target], &Objects[b->objnum], &b->f_collisions[idx].cinfo.hit_point_world, Weapon_info[b->weapon_info_index].damage); } break; case OBJ_SHIP: // mprintf(("beam hitting a ship %s, shield quadrant %d\n", Ships[Objects[target].instance].ship_name, b->f_collisions[idx].quadrant)); // hit the ship - again, the innards of this code handle multiplayer cases // maybe vaporize ship. dam = beam_get_ship_damage(b, &Objects[target], &b->f_collisions[idx].cinfo.hit_point_world); ship_apply_local_damage(&Objects[target], &Objects[b->objnum], &b->f_collisions[idx].cinfo.hit_point_world, dam, b->f_collisions[idx].quadrant); // GAH!! Bobboau, the shields are almost always up! Anyway, some people complained. //fine :\... -Bobboau // if this is the first hit on the player ship. whack him if(do_damage) // && !(b->f_collisions[idx].quadrant)) //I didn't want the beam wacking things if it's hitting just shields -Bobboau { beam_apply_whack(b, &Objects[target], &b->f_collisions[idx].cinfo.hit_point_world); } break; } if(dam == 0)break; } //mprintf(("out of handeling colisions\n")); // if the radius of the target is somewhat close to the radius of the beam, "stop" the beam here // for now : if its smaller than about 1/3 the radius of the ship if(widest <= (Objects[target].radius * BEAM_AREA_PERCENT) && !beam_will_tool_target(b, &Objects[target])){ // set last_shot so we know where to properly draw the beam b->last_shot = b->f_collisions[idx].cinfo.hit_point_world; Assert(is_valid_vec(&b->last_shot)); // done wif the beam break; } } //mprintf(("beam stopped\n")); // store the new recent collisions for(idx=0; idxr_collisions[idx] = r_coll[idx]; } b->r_collision_count = r_coll_count; } // for a given object, and a firing beam, determine its critical dot product and range void beam_get_cull_vals(object *objp, beam *b, float *cull_dot, float *cull_dist) { switch(objp->type){ // debris and asteroids are classified as slow moving small objects // use cull_dot == potential cone of beam + 10% and 50.0 meters case OBJ_DEBRIS: case OBJ_ASTEROID: *cull_dot = 1.0f - ((1.0f - beam_get_cone_dot(b)) * 1.10f); *cull_dist = 50.0f * 50.0f; return; // treat missiles as fast-moving small objects case OBJ_WEAPON: *cull_dot = 1.0f - ((1.0f - beam_get_cone_dot(b)) * 1.5f); *cull_dist = 300.0f * 300.0f; return; case OBJ_SHIP: // for cap ships, only cull for 90deg or better /* if(Ship_info[Ships[objp->instance].ship_info_index].flags & SIF_CAPITAL){ *cull_dot = 0.0f; *cull_dist = 0.0f; return; } */ // for large ships, cull at some multiple of the radius if(Ship_info[Ships[objp->instance].ship_info_index].flags & (SIF_BIG_SHIP | SIF_HUGE_SHIP)){ *cull_dot = 1.0f - ((1.0f - beam_get_cone_dot(b)) * 1.25f); *cull_dist = (objp->radius * 1.3f) * (objp->radius * 1.3f); return; } // for everthing else, cull the same as missiles *cull_dot = 1.0f - ((1.0f - beam_get_cone_dot(b)) * 1.5f); *cull_dist = 300.0f * 300.0f; return; } // BAD BAD BAD - but this code will cause everything to cull properly Int3(); *cull_dot = 1.0f; *cull_dist = 0.0f; return; } // FIXME - make sure we are truthfull representing the "cone" for all beam types // get the total possible cone for a given beam in radians float beam_get_cone_dot(beam *b) { switch(b->type){ case BEAM_TYPE_A: case BEAM_TYPE_C: case BEAM_TYPE_D: case BEAM_TYPE_E: // even though these beams don't move, return a _very_ small value return (float)cos(fl_radian(50.5f)); case BEAM_TYPE_B: return vm_vec_dotprod(&b->binfo.dir_a, &b->binfo.dir_b); default: Int3(); } Int3(); return 0.0f; } // if it is legal for the beam to fire, or continue firing int beam_ok_to_fire(beam *b) { // if my own object is invalid, stop firing if(b->objp->signature != b->sig){ mprintf(("BEAM : killing beam because of invalid parent object SIGNATURE!\n")); return -1; } // if my own object is a ghost if(b->objp->type != OBJ_SHIP){ mprintf(("BEAM : killing beam because of invalid parent object TYPE!\n")); return -1; } // type C beams are ok to fire all the time if(b->type == BEAM_TYPE_C){ ship *shipp = &Ships[b->objp->instance]; if(shipp->weapon_energy < 0.0){ // shipp->weapons.next_primary_fire_stamp[b->bank] = timestamp(Weapon_info[shipp->weapons.primary_bank_weapons[b->bank]].b_info.beam_warmdown*2); shipp->weapons.next_primary_fire_stamp[b->bank] = timestamp(2000); int ship_maybe_play_primary_fail_sound(); if ( &Objects[shipp->objnum] == Player_obj )ship_maybe_play_primary_fail_sound(); mprintf(("killing fighter beam becase it ran out of energy\n")); return 0; }else return 1; } // if the shooting turret is destroyed if(b->subsys->current_hits <= 0.0f){ mprintf(("BEAM : killing beam because turret has been destroyed!\n")); return -1; } //kill it if its disrupted if (ship_subsys_disrupted(b->subsys)) { return -1; } // if the beam will be firing out of its FOV, power it down vector aim_dir, temp; vector turret_dir, turret_pos; vm_vec_sub(&aim_dir, &b->last_shot, &b->last_start); vm_vec_normalize(&aim_dir); beam_get_global_turret_gun_info(b->objp, b->subsys, &turret_pos, &turret_dir, 1, &temp, b->fighter_beam); if(vm_vec_dotprod(&aim_dir, &turret_dir) < b->subsys->system_info->turret_fov){ mprintf(("BEAM : powering beam down because of FOV condition!\n")); return 0; } // ok to fire/continue firing return 1; } // get the width of the widest section of the beam float beam_get_widest(beam *b) { int idx; float widest = -1.0f; // sanity Assert(b->weapon_info_index >= 0); if(b->weapon_info_index < 0){ return -1.0f; } // lookup for(idx=0; idxweapon_info_index].b_info.beam_num_sections; idx++){ if(Weapon_info[b->weapon_info_index].b_info.sections[idx].width > widest){ widest = Weapon_info[b->weapon_info_index].b_info.sections[idx].width; } } // return return widest * b->shrink; } // apply a whack to a ship void beam_apply_whack(beam *b, object *objp, vector *hit_point) { weapon_info *wip; ship *shipp; // sanity Assert((b != NULL) && (objp != NULL) && (hit_point != NULL)); if((b == NULL) || (objp == NULL) || (hit_point == NULL)){ return; } Assert(b->weapon_info_index >= 0); wip = &Weapon_info[b->weapon_info_index]; Assert((objp != NULL) && (objp->type == OBJ_SHIP) && (objp->instance >= 0) && (objp->instance < MAX_SHIPS)); if((objp == NULL) || (objp->type != OBJ_SHIP) || (objp->instance < 0) || (objp->instance >= MAX_SHIPS)){ return; } shipp = &Ships[objp->instance]; if((shipp->ai_index < 0) || (shipp->ai_index >= MAX_AI_INFO)){ return; } // don't whack docking ships - and don't whack if the beam isn't supposed to if(Ai_info[shipp->ai_index].ai_flags & AIF_DOCKED || wip->wi_flags2 & WIF2_BEAM_NO_WHACK){ return; } // determine how big of a whack to apply float whack; float dist; if(wip->mass == 100.0f){ if(wip->damage < b_whack_damage){ whack = b_whack_small; } else { whack = b_whack_big; } }else{ whack = wip->mass; } // whack direction vector whack_dir, temp; vm_vec_dist_to_line(&objp->pos, &b->last_start, &b->last_shot, &temp, &dist); vm_vec_sub(&whack_dir, &objp->pos, &temp); vm_vec_normalize(&whack_dir); vm_vec_scale(&whack_dir, whack); // apply the whack ship_apply_whack(&whack_dir, hit_point, objp); } // return the amount of damage which should be applied to a ship. basically, filters friendly fire damage //now also atenuates for distance-Bobboau float beam_get_ship_damage(beam *b, object *objp, vector *hit_pos) { float dist = vm_vec_dist(&b->last_start, hit_pos); if(dist > b->range)return 0.0f; float aten = 1.0; float pre = b->range*b->damage_threshold; if((b->range != pre)&&(dist > pre))aten = 1.0f - (dist - pre)/(b->range - pre); // if the beam is on the same team as the object Assert((objp != NULL) && (b != NULL)); if((objp == NULL) || (b == NULL)){ return 0.0f; } Assert((objp->type == OBJ_SHIP) && (objp->instance >= 0) && (objp->instance < MAX_SHIPS)); if((objp->type != OBJ_SHIP) || (objp->instance < 0) || (objp->instance >= MAX_SHIPS)){ return 0.0f; } // same team. yikes if((b->team == Ships[objp->instance].team) && (Weapon_info[b->weapon_info_index].damage > Beam_friendly_cap[Game_skill_level])){ return Beam_friendly_cap[Game_skill_level]; } // normal damage // gr_printf(10, 20, "atened to %f", aten); // HUD_printf("atened to %f", aten); //atenuated damage, if I did everything right this should act like normal //unless you specificly specify it in the tables -Bobboau return Weapon_info[b->weapon_info_index].damage /* aten*/; } // if the beam is likely to tool a given target before its lifetime expires int beam_will_tool_target(beam *b, object *objp) { weapon_info *wip = &Weapon_info[b->weapon_info_index]; float damage_in_a_few_seconds; // sanity if(objp == NULL){ return 0; } // if the object is not a ship, bail if(objp->type != OBJ_SHIP){ return 0; } if((objp->instance < 0) || (objp->instance >= MAX_SHIPS)){ return 0; } // if the beam is going to apply more damage in about 1 and a half than the hull of the ship can take damage_in_a_few_seconds = (TOOLTIME / (float)BEAM_DAMAGE_TIME) * wip->damage; if(objp->hull_strength < damage_in_a_few_seconds){ // tooled return 1; } return 0; } float beam_accuracy = 1.0f; DCF(b_aim, "") { dc_get_arg(ARG_FLOAT); beam_accuracy = Dc_arg_float; } DCF(beam_list, "") { int idx; int b_count = 0; for(idx=0; idx= 0); orion = &Objects[Ships[s1].objnum]; s2 = ship_name_lookup("GTC Fenris 2"); Assert(s2 >= 0); fenris = &Objects[Ships[s2].objnum]; // get beam weapons lookup = GET_FIRST(&Ships[s1].subsys_list); orion_turret = NULL; orion_radar = NULL; while(lookup != END_OF_LIST(&Ships[s1].subsys_list)){ // turret if((lookup->system_info->type == SUBSYSTEM_TURRET) && !subsystem_stricmp(lookup->system_info->subobj_name, "turret07")){ orion_turret = lookup; } // radar if(lookup->system_info->type == SUBSYSTEM_RADAR){ orion_radar = lookup; } lookup = GET_NEXT(lookup); } Assert(orion_turret != NULL); Assert(orion_radar != NULL); lookup = GET_FIRST(&Ships[s2].subsys_list); fenris_turret = NULL; fenris_radar = NULL; while(lookup != END_OF_LIST(&Ships[s2].subsys_list)){ // turret if((lookup->system_info->type == SUBSYSTEM_TURRET) && !subsystem_stricmp(lookup->system_info->subobj_name, "turret07")){ fenris_turret = lookup; } // radar if(lookup->system_info->type == SUBSYSTEM_RADAR){ fenris_radar = lookup; } lookup = GET_NEXT(lookup); } Assert(fenris_turret != NULL); Assert(fenris_radar != NULL); memset(&f, 0, sizeof(beam_fire_info)); f.accuracy = beam_accuracy; f.beam_info_index = -1; f.beam_info_override = NULL; f.shooter = orion; f.target = fenris; f.target_subsys = fenris_turret; f.turret = orion_turret; // find the first beam int idx; int beam_first = -1; int beam_count = 0; for(idx=0; idx 1){ beam_first = idx; break; } } } if(beam_first < 0){ return; } // maybe fire it, if its valid f.beam_info_index = beam_first + whee - 1; if(Weapon_info[f.beam_info_index].wi_flags & WIF_BEAM){ HUD_printf("Firing %s\n", Weapon_info[f.beam_info_index].name); beam_fire(&f); } } void beam_test_new(int whee) { int s1, s2, s3; object *orion, *fenris, *herc2, *herc3, *herc6, *alpha; ship_subsys *orion_turret, *fenris_turret, *fenris_radar, *orion_radar, *lookup; beam_fire_info f; nprintf(("General", "Running beam test\n")); // lookup some stuff s1 = ship_name_lookup("GTD Orion 1"); Assert(s1 >= 0); orion = &Objects[Ships[s1].objnum]; s2 = ship_name_lookup("GTC Fenris 2"); Assert(s2 >= 0); fenris = &Objects[Ships[s2].objnum]; s3 = ship_name_lookup("GTF Hercules 2"); Assert(s3 >= 0); herc2 = &Objects[Ships[s3].objnum]; s3 = ship_name_lookup("GTF Hercules 3"); Assert(s3 >= 0); herc3 = &Objects[Ships[s3].objnum]; s3 = ship_name_lookup("GTF Hercules 6"); Assert(s3 >= 0); herc6 = &Objects[Ships[s3].objnum]; s3 = ship_name_lookup("Alpha 1"); Assert(s3 >= 0); alpha = &Objects[Ships[s3].objnum]; // get beam weapons lookup = GET_FIRST(&Ships[s1].subsys_list); orion_turret = NULL; orion_radar = NULL; while(lookup != END_OF_LIST(&Ships[s1].subsys_list)){ // turret if((lookup->system_info->type == SUBSYSTEM_TURRET) && !subsystem_stricmp(lookup->system_info->subobj_name, "turret07")){ orion_turret = lookup; } // radar if(lookup->system_info->type == SUBSYSTEM_RADAR){ orion_radar = lookup; } lookup = GET_NEXT(lookup); } Assert(orion_turret != NULL); Assert(orion_radar != NULL); lookup = GET_FIRST(&Ships[s2].subsys_list); fenris_turret = NULL; fenris_radar = NULL; while(lookup != END_OF_LIST(&Ships[s2].subsys_list)){ // turret if((lookup->system_info->type == SUBSYSTEM_TURRET) && !subsystem_stricmp(lookup->system_info->subobj_name, "turret03")){ fenris_turret = lookup; } // radar if(lookup->system_info->type == SUBSYSTEM_RADAR){ fenris_radar = lookup; } lookup = GET_NEXT(lookup); } Assert(fenris_turret != NULL); Assert(fenris_radar != NULL); memset(&f, 0, sizeof(beam_fire_info)); f.accuracy = beam_accuracy; f.beam_info_override = NULL; f.shooter = fenris; f.target = alpha; f.target_subsys = NULL; f.turret = fenris_turret; f.num_shots = 3; // find the first beam int idx; int beam_first = -1; int beam_count = 0; for(idx=0; idx 1){ beam_first = idx; break; } } } if(beam_first < 0){ return; } // maybe fire it, if its valid f.beam_info_index = beam_first + whee - 1; if(Weapon_info[f.beam_info_index].wi_flags & WIF_BEAM){ HUD_printf("Firing %s\n", Weapon_info[f.beam_info_index].name); beam_fire(&f); } }