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8f92eebd340e82d55b8ce40c73dc47e6c32835e5
fs2open.github.com/code/model/modelread.cpp
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penguin 8f92eebd34 Warpcore CVS sync
2002-06-03 04:10:40 +00:00

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/*
* 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/Model/ModelRead.cpp $
* $Revision: 2.0 $
* $Date: 2002-06-03 04:02:25 $
* $Author: penguin $
*
* file which reads and deciphers POF information
*
* $Log: not supported by cvs2svn $
* Revision 1.4 2002/05/16 00:42:54 mharris
* Use hex values instead of multi-chars for section IDs -- fewer
* compiler complaints and more portable to big-endian architectures.
*
* Revision 1.3 2002/05/15 15:00:23 mharris
* Don't use _splitpath() in non-Win32 -- it's only used for
* debugging anyway
*
* Revision 1.2 2002/05/04 04:52:22 mharris
* 1st draft at porting
*
* Revision 1.1 2002/05/02 18:03:10 mharris
* Initial checkin - converted filenames and includes to lower case
*
*
* 36 7/22/99 2:26p Mattk
* DA: don't show engine wash error if no subsystems. (ie, Pofview...)
*
* 35 7/19/99 12:02p Andsager
* Allow AWACS on any ship subsystem. Fix sexp_set_subsystem_strength to
* only blow up subsystem if its strength is > 0
*
* 34 7/07/99 5:00p Andsager
* Fixed bug in stepped rotation
*
* 33 7/06/99 4:42p Anoop
* Add MiniCap hack for engine wash
*
* 32 7/06/99 3:52p Andsager
* That wacky model_subsystem name vs. subobj_name thing bites us in the
* ass again.
*
* 31 7/06/99 3:15p Anoop
* Better debug info for engine wash error.
*
* 30 7/06/99 11:37a Andsager
* Fix warning message.
*
* 29 7/06/99 10:45a Andsager
* Modify engine wash to work on any ship that is not small. Add AWACS
* ask for help.
*
* 28 7/01/99 4:23p Dave
* Full support for multiple linked ambient engine sounds. Added "big
* damage" flag.
*
* 27 6/08/99 2:33p Dave
* Fixed release build warning. Put in hud config stuff.
*
* 26 6/01/99 8:35p Dave
* Finished lockarm weapons. Added proper supercap weapons/damage. Added
* awacs-set-radius sexpression.
*
* 25 5/28/99 1:51p Andsager
* Allow models to rotate in both direction on an axis, specifying a
* negative rotation time in submodel properties.
*
* 24 5/27/99 3:48p Andsager
* Add assert to model_read code to not allow overwrite of memory
*
* 23 5/27/99 12:11p Andsager
* Allow more than 1 subsystem to have live debris on any ship
*
* 22 5/27/99 10:57a Mattk
* Put in a warning about too many firing points per turret.
*
* 21 5/24/99 5:45p Dave
* Added detail levels to the nebula, with a decent speedup. Split nebula
* lightning into its own section.
*
* 20 5/19/99 11:09a Andsager
* Turn on engine wash. Check every 1/4 sec.
*
* 19 5/11/99 10:16p Andsager
* First pass on engine wash effect. Rotation (control input), damage,
* shake.
*
* 18 4/09/99 11:38a Andsager
* Change POF format for Freespace2
*
* 17 3/23/99 5:17p Dave
* Changed model file format somewhat to account for LOD's on insignias
*
* 16 3/20/99 3:46p Dave
* Added support for model-based background nebulae. Added 3 new
* sexpressions.
*
* 15 3/19/99 6:15p Dave
* Put in checks for insignia bitmaps for having too many faces or
* vertices
*
* 14 2/21/99 6:01p Dave
* Fixed standalone WSS packets.
*
* 13 2/19/99 11:42a Dave
* Put in model rendering autocentering.
*
* 12 2/10/99 3:52p Enricco
* Fix stupid assert
*
* 11 1/14/99 6:06p Dave
* 100% full squad logo support for single player and multiplayer.
*
* 10 1/11/99 12:42p Andsager
* Add live debris - debris which is created from a destroyed subsystem,
* when the ship is still alive
*
* 9 1/08/99 2:08p Dave
* Fixed software rendering for pofview. Super early support for AWACS and
* beam weapons.
*
* 8 1/06/99 2:24p Dave
* Stubs and release build fixes.
*
* 7 12/23/98 2:53p Andsager
* Added stepped rotation support
*
* 6 12/04/98 3:34p Andsager
* Handle norotating submodels
*
* 5 12/03/98 3:14p Andsager
* Check in code that checks rotating submodel actually has ship subsystem
*
* 4 11/19/98 11:07p Andsager
* Check in of physics and collision detection of rotating submodels
*
* 3 10/23/98 3:03p Andsager
* Initial support for changing rotation rate.
*
* 2 10/07/98 10:53a Dave
* Initial checkin.
*
* 1 10/07/98 10:50a Dave
*
* 177 8/28/98 3:29p Dave
* EMP effect done. AI effects may need some tweaking as required.
*
* 176 5/19/98 8:31p Andsager
* Added split planes (for big ship explosions)
*
* 175 5/07/98 5:39p Andsager
* Changes to model to hold cross section info
*
* 174 4/30/98 4:53p John
* Restructured and cleaned up cfile code. Added capability to read off
* of CD-ROM drive and out of multiple pack files.
*
* 173 4/22/98 9:43p John
* Added code to allow checking of invisible faces, flagged by any texture
* name with invisible in it.
*
* 172 4/14/98 11:11p John
* Made ships with < 50% hull left show electrical damage arcs.
*
* 171 4/01/98 5:34p John
* Made only the used POFs page in for a level. Reduced some interp
* arrays. Made custom detail level work differently.
*
* 170 4/01/98 9:14a Mike
* Fixed free bug
*
* 169 3/31/98 5:18p John
* Removed demo/save/restore. Made NDEBUG defined compile. Removed a
* bunch of debug stuff out of player file. Made model code be able to
* unload models and malloc out only however many models are needed.
*
*
* 168 3/17/98 2:46p Allender
* Copy subsystem name when copying model subsystems
*
* 167 3/02/98 5:42p John
* Removed WinAVI stuff from Freespace. Made all HUD gauges wriggle from
* afterburner. Made gr_set_clip work good with negative x &y. Made
* model_caching be on by default. Made each cached model have it's own
* bitmap id. Made asteroids not rotate when model_caching is on.
*
* 166 2/24/98 5:04p Allender
* allow different ship classes to use the same model. Lot's of subsystem
* stuff to deal with
*
* 165 2/16/98 3:46p John
* Made mass be proportional to area in newer pofs
*
* 164 2/13/98 5:19p John
* First rev of new model caching system. Needs to be ripped out and
* moved into ship stuff.
*
* 163 1/29/98 5:52p John
* new version of electrical arcing code
*
* 162 1/29/98 8:39a Andsager
* Changed mass and moment of intertia based area vs. volume
*
* 161 1/28/98 2:15p Mike
* Convert volume to surface area at runtime. Write note to John to
* cleanup if he modifies bspgen.
*
* 160 1/27/98 11:02a John
* Added first rev of sparks. Made all code that calls model_render call
* clear_instance first. Made debris pieces not render by default when
* clear_instance is called.
*
* 159 1/19/98 6:15p John
* Fixed all my Optimized Build compiler warnings
*
* 158 1/09/98 11:25a John
* Took the thruster animation stuff out of the model.
*
* 157 12/31/97 4:47p John
* Made all the eye points fit inside core radius
*
* 156 12/31/97 2:35p John
* Added code for core_radius
*
* 155 12/17/97 2:41p John
* made target bounding box be on hull only.
*
* 154 12/17/97 9:54a John
* added code for precalculated weapon flash lighting.
*
* 153 11/29/97 2:05p John
* made g3_draw_bitmap and g3_draw_rotated bitmap take w&h, not w/2 & h/2,
* like they used to incorrectly assume. Added code to model to read in
* thruster radius's.
*
* 152 11/25/97 11:41a John
* added code to read in pof v20.05, which adds radius to thrusters.
*
* 151 10/28/97 12:34a Mike
* Set useful values of mass and inertia matrix if values not otherwise
* set. Generate Warnings for unexpected ones.
*
* 150 10/22/97 5:54p Lawrance
* get rid of leading '$' when storing parent_name for paths
*
* 149 10/20/97 5:57p Lawrance
* have index to polymodel->paths[] within the model_subsystem struct.
*
* 148 9/15/97 5:45p John
* took out chunk stuff.
* made pofview display thrusters as blue polies.
*
* 147 9/09/97 3:39p Sandeep
* warning level 4 bugs
*
* 146 9/04/97 5:09p Andsager
* implement physics using moment of inertia and mass (from BSPgen).
* Added to phys_info struct. Updated ship_info, polymodel structs.
* Updated weapon ($Mass and $Force) and ship ($Mass -> $Density) tables
*
* 145 9/03/97 5:57p Lawrance
* take out warning
*
* 144 9/03/97 4:32p John
* changed bmpman to only accept ani and pcx's. made passing .pcx or .ani
* to bm_load functions not needed. Made bmpman keep track of palettes
* for bitmaps not mapped into game palettes.
*
* 143 8/19/97 11:49p Lawrance
* using atan2_safe() in place of atan2()
*
* 142 8/19/97 8:44a John
* Initial hooks for thruster stuff.
*
* 141 8/15/97 4:10p John
* new code to use the new octrees style bsp trees
*
* 140 8/14/97 5:46p John
* added code to read in mass,center of mass, and moment of interia from
* the pof. Also added code to display green center of mass dot when Show
* debug points is on in pofview.
*
* 139 7/10/97 8:34a John
* Added code to read TGA files.
*
* 138 6/26/97 3:18p Mike
* Recognize "turret", etc. in a subsystem field anywhere in name.
* Generate warning for bogus subsystem names.
*
* 137 6/25/97 5:11p John
* added foundation for model octants.
*
* 136 6/25/97 10:28a John
* Made debris chunks radius be set correctly to the submodel size, not
* hardcoded to 10.0f.
*
* 135 6/06/97 11:55a Mike
* Fix firing direction for zero piece turrets.
*
* 134 5/31/97 2:36p Mike
* Comment out mprintfs pertaining to debris.
*
* 133 5/30/97 4:41p Hoffoss
* Made some additions required for Fred.
*
* 132 5/30/97 3:42p Mike
* Shield mesh and hit system.
*
* 131 5/30/97 10:40a Hoffoss
* Added a function for Fred to get docking point names.
*
* 130 5/29/97 4:34p Allender
* removed Int3 from model_find_dock_index.
*
* 129 4/30/97 10:41a Allender
* don't dump out token 'none' when dumping out subsystem information
*
* 128 4/17/97 6:06p John
* New code/data for v19 of BSPGEN with smoothing and zbuffer
* optimizations.
*
* 127 4/09/97 3:31p Lawrance
* if any points of bounding box don't project, return project fail code
* in model_find_2d_bound_min()
*
* 126 4/07/97 10:37a John
* Took out limits on number of children a submodel can have. (So now
* capital ships can have tons of children on them).
*
* 125 4/03/97 3:18p Allender
*
* 124 4/03/97 1:29p Allender
* subsystem enhancement. Initial work on making subsystem status
* meaningful
*
* 123 3/28/97 2:49p John
* added code to fix targetting of debris chunks to draw bounding boxes
* right.
*
* 122 3/28/97 1:19p John
* Made TestCode not show damaged submodels.
*
* 121 3/28/97 11:17a John
* added code for linking lower detail submodels to the highest one; added
* code to pofview to view these.
*
* 120 3/17/97 11:24a John
*
* 119 3/15/97 5:06p John
* added bounding boxes for each subobject and code to display them.
*
* 118 3/13/97 10:32a John
* Added code for tiled 256x256 textures in certain models.
*
* 117 3/06/97 5:36p Mike
* Change vec_normalize_safe() back to vec_normalize().
* Spruce up docking a bit.
*
* 116 3/06/97 1:06p Allender
* more docking stuff. docking points now specified by strings in mission
* file. Changes to builtin missions and code to reflect this change.
*
* 115 3/06/97 10:56a Mike
* Write error checking version of vm_vec_normalize().
* Fix resultant problems.
*
* 114 3/06/97 10:05a Lawrance
* added missing cfclose's
*
* 113 3/05/97 5:27p John
* more work with turret stuff
*
* 112 3/05/97 12:49p John
* added Viewer_obj. Took out the interp_??? variables for turning
* outline,etc on and put them in flags you pass to model_render.
* Cleaned up model_interp code to fit new coding styles.
*
* 111 3/05/97 12:42p Adam
* john: fixed bug while model transversel code that assumed the root
* subobject was 0.
*
* 110 3/05/97 11:09a Allender
* DOH! MAX_SLOTS just way too low. Upped to 25 and Asserts put in to
* check bounds.
*
* 109 3/04/97 5:08p John
* Started adding debug code to make it so you can view from a turret's
* view.
*
* 108 3/04/97 3:36p John
* took out old debug "h' key. Made zbuffer flag bit bit field so you
* can turn on/off each value. Fixed a bug with turret rotation where
* different handedness turrets wouldn't work. Fixed a bug with two
* large ships within each other's radius not rendering correctly.
*
* 107 3/04/97 12:52p Allender
* docking styff. Added dock type to docking structure in model code.
* Renamed structure member in ai_goals. Temporary checkin. (i.e.
* rearming will use rearm dock points)
*
* 106 3/03/97 5:47p John
* fixed some rotating object discrepencies. Took out the gun firing
* point average beause it was inconsitent and wsn't as correct as using
* the pivot point.
*
* 105 3/03/97 4:20p Hoffoss
* Fixed bug in bug I just fixed. :)
*
* 104 3/03/97 4:00p Hoffoss
* fixed bug that caused docking bays without a name to be garbage when
* loaded.
*
* 103 3/03/97 8:58a Lawrance
* replaced a fprintf() with a cfputs()
*
* 102 3/01/97 2:12p Lawrance
* made to work with new cfile changes
*
* 101 2/28/97 10:57a John
* Made so you can blow off any subsystems, not just radars.
*
*
* 100 2/27/97 3:45p John
* Added a tree dialog to pofview that shows a model's tree.
*
* 99 2/27/97 12:07p John
* Added code to suppord debris chunks after a ship is exploded..
*
* 98 2/26/97 5:28p John
* Fixed a bunch of chunked model bugs. Basically they almost work better
* than non-chunked objects!
*
* 97 2/24/97 1:13p Allender
* support for multiple eye positions. Still some kinks to be worked out
* though....
*
* 96 2/20/97 4:06p Allender
* allow for multiple spline paths to lead to a docking bay
*
* 95 2/20/97 3:25p Allender
* change to docking bay structure -- added a name (for use in Fred
* mainly), and index into spline paths to reach this docking point
*
* 94 2/19/97 4:03p Allender
* dump a 0.0 instead of a 0 when dumping out missing subsystem
* information
*
* 93 2/19/97 2:52p Allender
* added crewspot name to subsystems (used only with turrets). Will be
* used by fred for ai class stuff for turrets
*
* 92 2/17/97 4:30p John
* Added code to automatically rotate any subsystems with the $rotate
* value set (except for turrets)
*
* 91 2/17/97 12:03p John
* Added code to set the angles of a subobject.
*
* 90 2/14/97 4:02p John
* changed a vector being passed as value to reference.
*
* 89 2/14/97 3:16p Mike
* Start on AI path garbage collection
*
* 88 2/14/97 1:06p John
* upped bspgen version number.
*
* 87 2/13/97 10:17a John
* INCORPORATED THE FOLLOWING CHANGES:
* ??? 2/13/97 9:49a John
* added code for geometric centers of objects.
* ??? 2/12/97 6:30p John
* upped model version number.
*
*
* 86 2/13/97 9:49a John
* ROLLEDBACK TO ALLENDER'S 85
*
* 85 2/12/97 5:34p Allender
* added a ton of debug code to help recify the subsystems in ships.tbl
* with subsystems in the models. Fixed a bug with subsystems not being
* given the correct type.
*
* 84 2/11/97 4:10p Allender
* major change of subsystem stuff. obj_subsystem renamed to
* model_subsystem. Dyamically allocate space in ship_info for
* subsystems.
*
* 83 2/10/97 4:20p Allender
* added distance to closest geometry to spline points
*
* 82 2/10/97 10:58a John
* Added back in sparks for where laser bolts hit.
* Added code to red damaged objects and replace then.
*
* 81 2/07/97 1:24p Allender
* added turret lists for spline points
*
* 80 2/06/97 2:56p John
* Added a "blown-off" field to the instance of a model. Also took out
* the model_set_angles functions and replaced with the more general
* model_set_instance functions.
*
* 79 2/04/97 7:37p John
* Finally!!! Turret stuff working!
*
* 78 1/31/97 12:51p John
* Added turret_fov and turret_fov_cos
*
* 77 1/31/97 12:43p John
* Turrets working nicely, finally!
*
* 76 1/31/97 11:36a John
*
* 75 1/29/97 4:46p John
* Code to read $crewpoint flag on turrets and store it in obj_subsystem
* info.
*
* 74 1/29/97 3:14p John
* Added field to ships.tbl to control how fast turret rotates.
*
* 73 1/28/97 11:23a John
* added functions to get/set model angles.
*
* 72 1/28/97 10:07a John
* More turret stuff, still not working, though.
*
* 71 1/27/97 2:46p John
* more turret stuff
*
* 70 1/27/97 11:35a Allender
* upped compatible object version
*
* 69 1/24/97 5:25p John
* More turret stuff. Not working yet, though.
*
* 68 1/24/97 4:55p John
* Started adding code for turning turrets.
* Had to change POF format to 18.0
*
* 67 1/20/97 2:16p Allender
* new shield structures being used
*
* 66 1/15/97 5:19p Allender
* new POF version. old version obsolete. Added shield and eye stuff.
* New format for gun/missile/docking points
*
* 65 1/10/97 5:15p Mike
* Moved ship-specific parameters from obj_subsystem to ship_subsys.
*
* Added turret code to AI system.
*
* 64 1/10/97 2:25p John
* Added code to support detail level distances.
*
* 63 1/02/97 11:45a Allender
* changed turret code to have > 1 firing point as well as fixing the
* problems of turrets being multiple subobjects. Turret norms should be
* getting stuffed correctly now.
*
* 62 12/31/96 4:14p Mike
* Turret firing.
* Correct bug in HUDtarget.cpp, showing wrong target.
*
* 61 12/27/96 4:09p Mike
* Integrate John's new model code.
*
* 60 12/26/96 1:42p John
* Changed function ordering to put model_init at top.
*
* 59 12/23/96 3:56p John
* Changed POF code to support pof 15.0.
*
* 58 12/23/96 11:00a John
* Restructured POF stuff to support LOD in one pof.
*
* 57 12/20/96 11:55a Allender
* removed debug code
*
* 56 12/20/96 11:40a Allender
* modifed subsystem stuff to do correct hit percentages and other cool
* stuff
*
* 55 12/18/96 4:04p Allender
* added "unknown" subsystem type for subsystems which aren't recognized.
*
* 54 12/17/96 11:37a Mike
* Big ship AI.
*
* 53 12/17/96 8:59a Mike
* Path-extraction-from-mdoel test code.
*
* 52 12/13/96 5:27p John
* fixed my sloppy code that didn't free model data.
*
* 51 12/13/96 3:54p Mike
* Major improvement to model_draw_paths -- connect the dots! Uses
* sophisticated connect-to-next algorithm.
*
* 50 12/13/96 2:59p John
* Added some code to test spline paths.
*
* 49 12/13/96 2:41p John
* Added code to read in spline paths on models.
*
* 48 12/13/96 10:29a Adam
* from allender: fixed up linked list walking when checking for turrets
* in subsystems
*
* 47 12/12/96 3:38p Allender
* fix up docking special object names. Added $thruster stuff to model
* and code
*
* 46 12/12/96 2:35p Mike
* Subsystem support
*
* 45 12/12/96 12:29p Lawrance
* added function to find the 2d bound for a subobject
*
* 44 12/11/96 5:35p John
* Added variables for viewer eye.
*
* 43 12/11/96 5:15p John
* Made the dist for detail level be calculated before the object is
* instanced.
*
* 42 12/11/96 4:50p John
* Added detail levels to the non-chunky ships.
*
* 41 12/11/96 4:33p Mike
* Temporary version so other people can build.
*
* 40 12/11/96 4:24p Mike
* Fix broken code...oops! clumsy in editor!
*
* 39 12/11/96 4:17p Adam
*
* 38 12/11/96 12:57p Mike
* Support for "Big Ship" AI behavior.
* More turret stuff.
*
* 37 12/11/96 12:43p Allender
* $gun and $missile don't get appended to models gun/missile list if the
* gun/missile belongs to a turret. Turrets are special instances of
* these
*
* 36 12/11/96 11:57a Allender
* added objnum reference to obj_subsystems so that $gun and $missile
* special polygons can refernce a particular subsystem if needed (i.e. to
* get the norms, etc).
*
* 35 12/11/96 10:33a Allender
* added stuff for FOV for turrets
*
* 34 12/10/96 3:27p Allender
*
* 33 12/09/96 5:05p Allender
* made subsystem lists and model_special lists as seperate entities.
*
* 32 12/09/96 1:16p Allender
* made seperate lists for guns/missiles/subsystems, etc
*
* 31 12/09/96 11:01a Allender
* added special polygon information to models. Linked list contains
* gun/missile/docking/subsystem/etc information.
*
* $NoKeywords: $
*/
#include <string.h>
#include <ctype.h>
#define MODEL_LIB
#include "cfile.h"
#include "model.h"
#include "bmpman.h"
#include "floating.h"
#include "3d.h"
#include "ship.h"
#include "modelsinc.h"
#include "key.h"
#include "2d.h"
#include "3dinternal.h"
#include "linklist.h"
#include "timer.h"
#include "freespace.h" // For flFrameTime
#include "fvi.h"
#define MAX_SUBMODEL_COLLISION_ROT_ANGLE (PI / 6.0f) // max 30 degrees per frame
// info for special polygon lists
polymodel *Polygon_models[MAX_POLYGON_MODELS];
static int model_initted = 0;
#ifndef NDEBUG
CFILE *ss_fp; // file pointer used to dump subsystem information
char model_filename[_MAX_PATH]; // temp used to store filename
char debug_name[_MAX_PATH];
int ss_warning_shown; // have we shown the warning dialog concerning the subsystems?
char Global_filename[256];
int Model_ram = 0; // How much RAM the models use total
#endif
// Anything less than this is considered incompatible.
#define PM_COMPATIBLE_VERSION 1900
// Anything greater than or equal to PM_COMPATIBLE_VERSION and
// whose major version is less than or equal to this is considered
// compatible.
#define PM_OBJFILE_MAJOR_VERSION 21
static int Model_signature = 0;
// Free up a model, getting rid of all its memory
// Can't be called from outside of model code because more
// than one person might be using this model so we can't free
// it.
static void model_unload(int modelnum)
{
int i,j;
if ( (modelnum < 0) || (modelnum>MAX_POLYGON_MODELS)) {
return;
}
polymodel *pm = Polygon_models[modelnum];
if ( !pm ) {
return;
}
#ifndef NDEBUG
Model_ram -= pm->ram_used;
#endif
if (pm->paths) {
for (i=0; i<pm->n_paths; i++ ) {
for (j=0; j<pm->paths[i].nverts; j++ ) {
if ( pm->paths[i].verts[j].turret_ids ) {
free(pm->paths[i].verts[j].turret_ids);
}
}
if (pm->paths[i].verts) {
free(pm->paths[i].verts);
}
}
free(pm->paths);
}
if ( pm->shield.verts ) {
free( pm->shield.verts );
}
if ( pm->shield.tris ) {
free(pm->shield.tris);
}
if ( pm->missile_banks ) {
free(pm->missile_banks);
}
if ( pm->docking_bays ) {
for (i=0; i<pm->n_docks; i++ ) {
if ( pm->docking_bays[i].splines ) {
free( pm->docking_bays[i].splines );
}
}
free(pm->docking_bays);
}
if ( pm->thrusters ) {
free(pm->thrusters);
}
#ifndef NDEBUG
if ( pm->debug_info ) {
free(pm->debug_info);
}
#endif
model_octant_free( pm );
if (pm->submodel) {
for (i=0; i<pm->n_models; i++ ) {
if ( pm->submodel[i].bsp_data ) {
free(pm->submodel[i].bsp_data);
}
}
free(pm->submodel);
}
if ( pm->xc ) {
free(pm->xc);
}
if ( pm->lights ) {
free(pm->lights);
}
if ( pm->gun_banks ) {
free(pm->gun_banks);
}
pm->id = 0;
memset( pm, 0, sizeof(polymodel));
free( pm );
Polygon_models[modelnum] = NULL;
}
void model_free_all()
{
int i;
if ( !model_initted) {
model_init();
return;
}
mprintf(( "Freeing all existing models...\n" ));
for (i=0;i<MAX_POLYGON_MODELS;i++) {
model_unload(i);
}
}
void model_init()
{
int i;
if ( model_initted ) {
Int3(); // Model_init shouldn't be called twice!
return;
}
#ifndef NDEBUG
Model_ram = 0;
#endif
for (i=0;i<MAX_POLYGON_MODELS;i++) {
Polygon_models[i] = NULL;
}
// Init the model caching system
model_cache_init();
atexit( model_free_all );
model_initted = 1;
}
// routine to parse out values from a user property field of an object
void get_user_prop_value(char *buf, char *value)
{
char *p, *p1, c;
p = buf;
while ( isspace(*p) || (*p == '=') ) // skip white space and equal sign
p++;
p1 = p;
while ( !iscntrl(*p1) )
p1++;
c = *p1;
*p1 = '\0';
strcpy(value, p);
*p1 = c;
}
// funciton to copy model data from one subsystem set to another subsystem set. This function
// is called when two ships use the same model data, but since the model only gets read in one time,
// the subsystem data is only present in one location. The ship code will call this routine to fix
// this situation by copying stuff from the source subsystem set to the dest subsystem set.
void model_copy_subsystems( int n_subsystems, model_subsystem *d_sp, model_subsystem *s_sp )
{
int i, j;
model_subsystem *source, *dest;
for (i = 0; i < n_subsystems; i++ ) {
source = &s_sp[i];
for ( j = 0; j < n_subsystems; j++ ) {
dest = &d_sp[j];
if ( !stricmp( source->subobj_name, dest->subobj_name) ) {
dest->flags = source->flags;
dest->subobj_num = source->subobj_num;
dest->model_num = source->model_num;
dest->pnt = source->pnt;
dest->radius = source->radius;
dest->type = source->type;
dest->turn_rate = source->turn_rate;
dest->turret_gun_sobj = source->turret_gun_sobj;
strcpy( dest->name, source->name );
if ( dest->type == SUBSYSTEM_TURRET ) {
int nfp;
dest->turret_fov = source->turret_fov;
dest->turret_num_firing_points = source->turret_num_firing_points;
dest->turret_norm = source->turret_norm;
dest->turret_matrix = source->turret_matrix;
for (nfp = 0; nfp < dest->turret_num_firing_points; nfp++ )
dest->turret_firing_point[nfp] = source->turret_firing_point[nfp];
if ( dest->flags & MSS_FLAG_CREWPOINT )
strcpy(dest->crewspot, source->crewspot);
}
break;
}
}
if ( j == n_subsystems )
Int3(); // get allender -- something is amiss with models
}
}
// routine to get/set subsystem information
static void set_subsystem_info( model_subsystem *subsystemp, char *props, char *dname )
{
char *p;
char buf[32];
char lcdname[256];
if ( (p = strstr(props, "$name")) != NULL)
get_user_prop_value(p+5, subsystemp->name);
else
strcpy( subsystemp->name, dname );
strcpy(lcdname, dname);
strlwr(lcdname);
// check the name for it's specific type
if ( strstr(lcdname, "engine") ) {
subsystemp->type = SUBSYSTEM_ENGINE;
} else if ( strstr(lcdname, "radar") ) {
subsystemp->type = SUBSYSTEM_RADAR;
} else if ( strstr(lcdname, "turret") ) {
float angle;
subsystemp->type = SUBSYSTEM_TURRET;
if ( (p = strstr(props, "$fov")) != NULL )
get_user_prop_value(p+4, buf); // get the value of the fov
else
strcpy(buf,"180");
angle = ANG_TO_RAD(atoi(buf))/2.0f;
subsystemp->turret_fov = (float)cos(angle);
subsystemp->turret_num_firing_points = 0;
if ( (p = strstr(props, "$crewspot")) != NULL) {
subsystemp->flags |= MSS_FLAG_CREWPOINT;
get_user_prop_value(p+9, subsystemp->crewspot);
}
} else if ( strstr(lcdname, "navigation") ) {
subsystemp->type = SUBSYSTEM_NAVIGATION;
} else if ( strstr(lcdname, "communication") ) {
subsystemp->type = SUBSYSTEM_COMMUNICATION;
} else if ( strstr(lcdname, "weapons") ) {
subsystemp->type = SUBSYSTEM_WEAPONS;
} else if ( strstr(lcdname, "sensors") ) {
subsystemp->type = SUBSYSTEM_SENSORS;
} else if ( strstr(lcdname, "solar") ) {
subsystemp->type = SUBSYSTEM_SOLAR;
} else if ( strstr(lcdname, "gas") ) {
subsystemp->type = SUBSYSTEM_GAS_COLLECT;
} else if ( strstr(lcdname, "activator") ) {
subsystemp->type = SUBSYSTEM_ACTIVATION;
} else { // If unrecognized type, set to unknown so artist can continue working...
subsystemp->type = SUBSYSTEM_UNKNOWN;
mprintf(("Warning: Ignoring unrecognized subsystem %s, believed to be in ship %s\n", dname, Global_filename));
}
// Rotating subsystem
if ( (p = strstr(props, "$rotate")) != NULL) {
subsystemp->flags |= MSS_FLAG_ROTATES;
// get time for (a) complete rotation (b) step (c) activation
float turn_time;
get_user_prop_value(p+7, buf);
turn_time = (float)atof(buf);
// CASE OF STEPPED ROTATION
if ( (p = strstr(props, "$stepped")) != NULL) {
subsystemp->stepped_rotation = new(stepped_rotation);
subsystemp->flags |= MSS_FLAG_STEPPED_ROTATE;
// get number of steps
if ( (p = strstr(props, "$steps")) != NULL) {
get_user_prop_value(p+6, buf);
subsystemp->stepped_rotation->num_steps = atoi(buf);
} else {
subsystemp->stepped_rotation->num_steps = 8;
}
// get pause time
if ( (p = strstr(props, "$t_paused")) != NULL) {
get_user_prop_value(p+9, buf);
subsystemp->stepped_rotation->t_pause = (float)atof(buf);
} else {
subsystemp->stepped_rotation->t_pause = 2.0f;
}
// get transition time - time to go between steps
if ( (p = strstr(props, "$t_transit")) != NULL) {
get_user_prop_value(p+10, buf);
subsystemp->stepped_rotation->t_transit = (float)atof(buf);
} else {
subsystemp->stepped_rotation->t_transit = 2.0f;
}
// get fraction of time spent in accel
if ( (p = strstr(props, "$fraction_accel")) != NULL) {
get_user_prop_value(p+15, buf);
subsystemp->stepped_rotation->fraction = (float)atof(buf);
Assert(subsystemp->stepped_rotation->fraction > 0 && subsystemp->stepped_rotation->fraction < 0.5);
} else {
subsystemp->stepped_rotation->fraction = 0.3f;
}
int num_steps = subsystemp->stepped_rotation->num_steps;
float t_trans = subsystemp->stepped_rotation->t_transit;
float fraction = subsystemp->stepped_rotation->fraction;
subsystemp->stepped_rotation->max_turn_accel = PI2 / (fraction*(1.0f - fraction) * num_steps * t_trans*t_trans);
subsystemp->stepped_rotation->max_turn_rate = PI2 / ((1.0f - fraction) * num_steps *t_trans);
}
// CASE OF AI ROTATION
else if ( (p = strstr(props, "$ai")) != NULL) {
get_user_prop_value(p+8, buf);
subsystemp->flags |= MSS_FLAG_AI_ROTATE;
// get parameters - ie, speed / dist / other ??
// time to activate
// condition
}
// CASE OF NORMAL CONTINUOUS ROTATION
else {
if ( fabs(turn_time) < 1 ) {
// Warning(LOCATION, "%s has subsystem %s with rotation time less than 1 sec", dname, Global_filename );
subsystemp->flags &= ~MSS_FLAG_ROTATES;
subsystemp->turn_rate = 0.0f;
} else {
subsystemp->turn_rate = PI2 / turn_time;
}
}
}
}
// used in collision code to check if submode rotates too far
float get_submodel_delta_angle(submodel_instance_info *sii)
{
vector diff;
vm_vec_sub(&diff, (vector*)&sii->angs, (vector*)&sii->prev_angs);
// find the angle
float delta_angle = vm_vec_mag(&diff);
// make sure we get the short way around
if (delta_angle > PI) {
delta_angle = (PI2 - delta_angle);
}
return delta_angle;
}
void do_new_subsystem( int n_subsystems, model_subsystem *slist, int subobj_num, float rad, vector *pnt, char *props, char *subobj_name, int model_num )
{
int i;
model_subsystem *subsystemp;
if ( slist==NULL ) return; // For TestCode, POFView, etc don't bother
// try to find the name of the subsystem passed here on the list of subsystems currently on the
// ship. Assign the values only when the right subsystem is found
for (i = 0; i < n_subsystems; i++ ) {
subsystemp = &slist[i];
if ( !stricmp(subobj_name, subsystemp->subobj_name) ) {
subsystemp->flags = 0;
subsystemp->subobj_num = subobj_num;
subsystemp->turret_gun_sobj = -1;
subsystemp->model_num = model_num;
subsystemp->pnt = *pnt; // use the offset to get the center point of the subsystem
subsystemp->radius = rad;
set_subsystem_info( subsystemp, props, subobj_name);
strcpy(subsystemp->subobj_name, subobj_name); // copy the object name
return;
}
}
#ifndef NDEBUG
if ( !ss_warning_shown) {
#ifdef WIN32
char bname[_MAX_FNAME];
_splitpath(model_filename, NULL, NULL, bname, NULL);
Warning(LOCATION, "A subsystem was found in model %s that does not have a record in ships.tbl.\nA list of subsystems for this ship will be dumped to:\n\ndata\\tables\\%s.subsystems for inclusion\n into ships.tbl.", model_filename, bname);
#else
Warning(LOCATION, "A subsystem was found in model %s that does not have a record in ships.tbl.\n", model_filename);
#endif // ifdef WIN32
ss_warning_shown = 1;
} else
#endif
nprintf(("warning", "Subsystem %s in ships.tbl not found in model!\n", subobj_name));
#ifndef NDEBUG
if ( ss_fp ) {
char tmp_buffer[128];
sprintf(tmp_buffer, "$Subsystem:\t\t\t%s,1,0.0\n", subobj_name);
cfputs(tmp_buffer, ss_fp);
}
#endif
}
void print_family_tree( polymodel *obj, int modelnum, char * ident, int islast )
{
char temp[50];
if ( modelnum < 0 ) return;
if (obj==NULL) return;
if (strlen(ident)==0 ) {
mprintf(( " %s", obj->submodel[modelnum].name ));
sprintf( temp, " " );
} else if ( islast ) {
mprintf(( "%s��%s", ident, obj->submodel[modelnum].name ));
sprintf( temp, "%s ", ident );
} else {
mprintf(( "%s��%s", ident, obj->submodel[modelnum].name ));
sprintf( temp, "%s� ", ident );
}
mprintf(( "\n" ));
int child = obj->submodel[modelnum].first_child;
while( child > -1 ) {
if ( obj->submodel[child].next_sibling < 0 )
print_family_tree( obj, child, temp,1 );
else
print_family_tree( obj, child, temp,0 );
child = obj->submodel[child].next_sibling;
}
}
void dump_object_tree(polymodel *obj)
{
print_family_tree( obj, 0, "", 0 );
key_getch();
}
void create_family_tree(polymodel *obj)
{
int i;
for (i=0; i<obj->n_models; i++ ) {
obj->submodel[i].num_children = 0;
obj->submodel[i].first_child = -1;
obj->submodel[i].next_sibling = -1;
}
for (i=0; i<obj->n_models; i++ ) {
int pn;
pn = obj->submodel[i].parent;
if ( pn > -1 ) {
obj->submodel[pn].num_children++;
int tmp = obj->submodel[pn].first_child;
obj->submodel[pn].first_child = i;
obj->submodel[i].next_sibling = tmp;
}
}
}
void model_calc_bound_box( vector *box, vector *big_mn, vector *big_mx)
{
box[0].xyz.x = big_mn->xyz.x; box[0].xyz.y = big_mn->xyz.y; box[0].xyz.z = big_mn->xyz.z;
box[1].xyz.x = big_mx->xyz.x; box[1].xyz.y = big_mn->xyz.y; box[1].xyz.z = big_mn->xyz.z;
box[2].xyz.x = big_mx->xyz.x; box[2].xyz.y = big_mx->xyz.y; box[2].xyz.z = big_mn->xyz.z;
box[3].xyz.x = big_mn->xyz.x; box[3].xyz.y = big_mx->xyz.y; box[3].xyz.z = big_mn->xyz.z;
box[4].xyz.x = big_mn->xyz.x; box[4].xyz.y = big_mn->xyz.y; box[4].xyz.z = big_mx->xyz.z;
box[5].xyz.x = big_mx->xyz.x; box[5].xyz.y = big_mn->xyz.y; box[5].xyz.z = big_mx->xyz.z;
box[6].xyz.x = big_mx->xyz.x; box[6].xyz.y = big_mx->xyz.y; box[6].xyz.z = big_mx->xyz.z;
box[7].xyz.x = big_mn->xyz.x; box[7].xyz.y = big_mx->xyz.y; box[7].xyz.z = big_mx->xyz.z;
}
// Debug thing so we don't repeatedly show warning messages.
#ifndef NDEBUG
int Bogus_warning_flag_1903 = 0;
#endif
//reads a binary file containing a 3d model
int read_model_file(polymodel * pm, char *filename, int n_subsystems, model_subsystem *subsystems)
{
CFILE *fp;
int version;
int id, len, next_chunk;
int i,j;
#ifndef NDEBUG
strcpy(Global_filename, filename);
#endif
fp = cfopen(filename,"rb");
if (!fp){
Error( LOCATION, "Can't open file <%s>",filename);
return 0;
}
// code to get a filename to write out subsystem information for each model that
// is read. This info is essentially debug stuff that is used to help get models
// into the game quicker
#if 0
{
char bname[_MAX_FNAME];
_splitpath(filename, NULL, NULL, bname, NULL);
sprintf(debug_name, "%s.subsystems", bname);
ss_fp = cfopen(debug_name, "wb", CFILE_NORMAL, CF_TYPE_TABLES );
if ( !ss_fp ) {
mprintf(( "Can't open debug file for writing subsystems for %s\n", filename));
} else {
strcpy(model_filename, filename);
ss_warning_shown = 0;
}
}
#endif
id = cfread_int(fp);
if (id != POF_HEADER_ID)
Error( LOCATION, "Bad ID in model file <%s>",filename);
// Version is major*100+minor
// So, major = version / 100;
// minor = version % 100;
version = cfread_int(fp);
//Warning( LOCATION, "POF Version = %d", version );
if (version < PM_COMPATIBLE_VERSION || (version/100) > PM_OBJFILE_MAJOR_VERSION) {
Warning(LOCATION,"Bad version (%d) in model file <%s>",version,filename);
return 0;
}
pm->version = version;
Assert( strlen(filename) < FILENAME_LEN );
strncpy(pm->filename, filename, FILENAME_LEN);
memset( &pm->view_positions, 0, sizeof(pm->view_positions) );
// reset insignia counts
pm->num_ins = 0;
id = cfread_int(fp);
len = cfread_int(fp);
next_chunk = cftell(fp) + len;
while (!cfeof(fp)) {
// mprintf(("Processing chunk <%c%c%c%c>, len = %d\n",id,id>>8,id>>16,id>>24,len));
// key_getch();
switch (id) {
case ID_OHDR: { //Object header
//vector v;
//mprintf(0,"Got chunk OHDR, len=%d\n",len);
#if defined( FREESPACE1_FORMAT )
pm->n_models = cfread_int(fp);
// mprintf(( "Num models = %d\n", pm->n_models ));
pm->rad = cfread_float(fp);
pm->flags = cfread_int(fp); // 1=Allow tiling
#elif defined( FREESPACE2_FORMAT )
pm->rad = cfread_float(fp);
pm->flags = cfread_int(fp); // 1=Allow tiling
pm->n_models = cfread_int(fp);
// mprintf(( "Num models = %d\n", pm->n_models ));
#endif
pm->submodel = (bsp_info *)malloc( sizeof(bsp_info)*pm->n_models );
Assert(pm->submodel != NULL );
memset( pm->submodel, 0, sizeof(bsp_info)*pm->n_models );
//Assert(pm->n_models <= MAX_SUBMODELS);
cfread_vector(&pm->mins,fp);
cfread_vector(&pm->maxs,fp);
model_calc_bound_box(pm->bounding_box,&pm->mins,&pm->maxs);
pm->n_detail_levels = cfread_int(fp);
// mprintf(( "There are %d detail levels\n", pm->n_detail_levels ));
for (i=0; i<pm->n_detail_levels;i++ ) {
pm->detail[i] = cfread_int(fp);
pm->detail_depth[i] = 0.0f;
/// mprintf(( "Detail level %d is model %d.\n", i, pm->detail[i] ));
}
pm->num_debris_objects = cfread_int(fp);
Assert( pm->num_debris_objects <= MAX_DEBRIS_OBJECTS );
// mprintf(( "There are %d debris objects\n", pm->num_debris_objects ));
for (i=0; i<pm->num_debris_objects;i++ ) {
pm->debris_objects[i] = cfread_int(fp);
// mprintf(( "Debris object %d is model %d.\n", i, pm->debris_objects[i] ));
}
if ( pm->version >= 1903 ) {
if ( pm->version >= 2009 ) {
pm->mass = cfread_float(fp);
cfread_vector( &pm->center_of_mass, fp );
cfread_vector( &pm->moment_of_inertia.vec.rvec, fp );
cfread_vector( &pm->moment_of_inertia.vec.uvec, fp );
cfread_vector( &pm->moment_of_inertia.vec.fvec, fp );
} else {
// old code where mass wasn't based on area, so do the calculation manually
float vol_mass = cfread_float(fp);
// Attn: John Slagel: The following is better done in bspgen.
// Convert volume (cubic) to surface area (quadratic) and scale so 100 -> 100
float area_mass = (float) pow(vol_mass, 0.6667f) * 4.65f;
pm->mass = area_mass;
float mass_ratio = vol_mass / area_mass;
cfread_vector( &pm->center_of_mass, fp );
cfread_vector( &pm->moment_of_inertia.vec.rvec, fp );
cfread_vector( &pm->moment_of_inertia.vec.uvec, fp );
cfread_vector( &pm->moment_of_inertia.vec.fvec, fp );
// John remove this with change to bspgen
vm_vec_scale( &pm->moment_of_inertia.vec.rvec, mass_ratio );
vm_vec_scale( &pm->moment_of_inertia.vec.uvec, mass_ratio );
vm_vec_scale( &pm->moment_of_inertia.vec.fvec, mass_ratio );
}
} else {
#ifndef NDEBUG
if (stricmp("fighter04.pof", filename)) {
if (Bogus_warning_flag_1903 == 0) {
Warning(LOCATION, "Ship %s is old. Cannot compute mass.\nSetting to 50.0f. Talk to John.", filename);
Bogus_warning_flag_1903 = 1;
}
}
#endif
pm->mass = 50.0f;
vm_vec_zero( &pm->center_of_mass );
vm_set_identity( &pm->moment_of_inertia );
vm_vec_scale(&pm->moment_of_inertia.vec.rvec, 0.001f);
vm_vec_scale(&pm->moment_of_inertia.vec.uvec, 0.001f);
vm_vec_scale(&pm->moment_of_inertia.vec.fvec, 0.001f);
}
// read in cross section info
pm->xc = NULL;
if ( pm->version >= 2014 ) {
pm->num_xc = cfread_int(fp);
if (pm->num_xc > 0) {
pm->xc = (cross_section*) malloc(pm->num_xc*sizeof(cross_section));
for (int i=0; i<pm->num_xc; i++) {
pm->xc[i].z = cfread_float(fp);
pm->xc[i].radius = cfread_float(fp);
}
}
} else {
pm->num_xc = 0;
}
if ( pm->version >= 2007 ) {
pm->num_lights = cfread_int(fp);
//mprintf(( "Found %d lights!\n", pm->num_lights ));
pm->lights = (bsp_light *)malloc( sizeof(bsp_light)*pm->num_lights );
for (i=0; i<pm->num_lights; i++ ) {
cfread_vector(&pm->lights[i].pos,fp);
pm->lights[i].type = cfread_int(fp);
pm->lights[i].value = 0.0f;
}
} else {
pm->num_lights = 0;
pm->lights = NULL;
}
break;
}
case ID_SOBJ: { //Subobject header
int n;
char *p, props[MAX_PROP_LEN];
// float d;
//mprintf(0,"Got chunk SOBJ, len=%d\n",len);
n = cfread_int(fp);
Assert(n < pm->n_models );
#if defined( FREESPACE2_FORMAT )
pm->submodel[n].rad = cfread_float(fp); //radius
#endif
pm->submodel[n].parent = cfread_int(fp);
// cfread_vector(&pm->submodel[n].norm,fp);
// d = cfread_float(fp);
// cfread_vector(&pm->submodel[n].pnt,fp);
cfread_vector(&pm->submodel[n].offset,fp);
// mprintf(( "Subobj %d, offs = %.1f, %.1f, %.1f\n", n, pm->submodel[n].offset.xyz.x, pm->submodel[n].offset.xyz.y, pm->submodel[n].offset.xyz.z ));
#if defined ( FREESPACE1_FORMAT )
pm->submodel[n].rad = cfread_float(fp); //radius
#endif
// pm->submodel[n].tree_offset = cfread_int(fp); //offset
// pm->submodel[n].data_offset = cfread_int(fp); //offset
cfread_vector(&pm->submodel[n].geometric_center,fp);
cfread_vector(&pm->submodel[n].min,fp);
cfread_vector(&pm->submodel[n].max,fp);
model_calc_bound_box(pm->submodel[n].bounding_box,&pm->submodel[n].min,&pm->submodel[n].max);
pm->submodel[n].name[0] = '\0';
cfread_string_len( pm->submodel[n].name, MAX_NAME_LEN, fp); // get the name
cfread_string_len(props, MAX_PROP_LEN, fp); // and the user properites
pm->submodel[n].movement_type = cfread_int(fp);
pm->submodel[n].movement_axis = cfread_int(fp);
// change turret movement type to MOVEMENT_TYPE_ROT_SPECIAL
if (pm->submodel[n].movement_type == MOVEMENT_TYPE_ROT) {
if ( strstr(pm->submodel[n].name, "turret") || strstr(pm->submodel[n].name, "gun") || strstr(pm->submodel[n].name, "cannon")) {
pm->submodel[n].movement_type = MOVEMENT_TYPE_ROT_SPECIAL;
} else if (strstr(pm->submodel[n].name, "thruster")) {
// Int3();
pm->submodel[n].movement_type = MOVEMENT_TYPE_NONE;
pm->submodel[n].movement_axis = MOVEMENT_AXIS_NONE;
}
}
if ( pm->submodel[n].name[0] == '\0' ) {
strcpy(pm->submodel[n].name, "unknown object name");
}
bool rotating_submodel_has_subsystem = !(pm->submodel[n].movement_type == MOVEMENT_TYPE_ROT);
if ( ( p = strstr(props, "$special"))!= NULL ) {
char type[32];
get_user_prop_value(p+9, type);
if ( !stricmp(type, "subsystem") ) { // if we have a subsystem, put it into the list!
do_new_subsystem( n_subsystems, subsystems, n, pm->submodel[n].rad, &pm->submodel[n].offset, props, pm->submodel[n].name, pm->id );
rotating_submodel_has_subsystem = true;
} else if ( !stricmp(type, "no_rotate") ) {
// mark those submodels which should not rotate - ie, those with no subsystem
pm->submodel[n].movement_type = MOVEMENT_TYPE_NONE;
pm->submodel[n].movement_axis = MOVEMENT_AXIS_NONE;
} else {
// if submodel rotates (via bspgen), then there is either a subsys or special=no_rotate
Assert( pm->submodel[n].movement_type != MOVEMENT_TYPE_ROT );
}
}
if ( !rotating_submodel_has_subsystem ) {
nprintf(("Model", "Model %s: Rotating Submodel without subsystem: %s\n", pm->filename, pm->submodel[n].name));
// mark those submodels which should not rotate - ie, those with no subsystem
pm->submodel[n].movement_type = MOVEMENT_TYPE_NONE;
pm->submodel[n].movement_axis = MOVEMENT_AXIS_NONE;
}
pm->submodel[n].angs.p = 0.0f;
pm->submodel[n].angs.b = 0.0f;
pm->submodel[n].angs.h = 0.0f;
{
int nchunks = cfread_int( fp ); // Throw away nchunks
if ( nchunks > 0 ) {
Error( LOCATION, "Model '%s' is chunked. See John or Adam!\n", pm->filename );
}
}
pm->submodel[n].bsp_data_size = cfread_int(fp);
if ( pm->submodel[n].bsp_data_size > 0 ) {
pm->submodel[n].bsp_data = (ubyte *)malloc(pm->submodel[n].bsp_data_size);
cfread(pm->submodel[n].bsp_data,1,pm->submodel[n].bsp_data_size,fp);
} else {
pm->submodel[n].bsp_data = NULL;
}
if ( strstr( pm->submodel[n].name, "thruster") )
pm->submodel[n].is_thruster=1;
else
pm->submodel[n].is_thruster=0;
if ( strstr( pm->submodel[n].name, "-destroyed") )
pm->submodel[n].is_damaged=1;
else
pm->submodel[n].is_damaged=0;
//mprintf(( "Submodel %d, name '%s', parent = %d\n", n, pm->submodel[n].name, pm->submodel[n].parent ));
//key_getch();
//mprintf(( "Submodel %d, tree offset %d\n", n, pm->submodel[n].tree_offset ));
//mprintf(( "Submodel %d, data offset %d\n", n, pm->submodel[n].data_offset ));
//key_getch();
break;
}
case ID_SHLD:
{
int nverts, ntris;
nverts = cfread_int( fp ); // get the number of vertices in the list
pm->shield.nverts = nverts;
pm->shield.verts = (shield_vertex *)malloc(nverts * sizeof(shield_vertex) );
Assert( pm->shield.verts );
for ( i = 0; i < nverts; i++ ) // read in the vertex list
cfread_vector( &(pm->shield.verts[i].pos), fp );
ntris = cfread_int( fp ); // get the number of triangles that compose the shield
pm->shield.ntris = ntris;
pm->shield.tris = (shield_tri *)malloc(ntris * sizeof(shield_tri) );
Assert( pm->shield.tris );
for ( i = 0; i < ntris; i++ ) {
cfread_vector( &(pm->shield.tris[i].norm), fp );
for ( j = 0; j < 3; j++ ) {
pm->shield.tris[i].verts[j] = cfread_int( fp ); // read in the indices into the shield_vertex list
/*
#ifndef NDEBUG
if (pm->shield.tris[i].verts[j] >= nverts)
if (!warning_displayed) {
warning_displayed = 1;
Warning(LOCATION, "Ship %s has a bogus shield mesh.\nOnly %i vertices, index %i found.\n", filename, nverts, pm->shield.tris[i].verts[j]);
}
#endif
*/
}
for ( j = 0; j < 3; j++ )
pm->shield.tris[i].neighbors[j] = cfread_int( fp ); // read in the neighbor indices -- indexes into tri list
}
break;
}
break;
case ID_GPNT:
pm->n_guns = cfread_int(fp);
pm->gun_banks = (w_bank *)malloc(sizeof(w_bank) * pm->n_guns);
Assert( pm->gun_banks != NULL );
for (i = 0; i < pm->n_guns; i++ ) {
w_bank *bank = &pm->gun_banks[i];
bank->num_slots = cfread_int(fp);
Assert ( bank->num_slots < MAX_SLOTS );
for (j = 0; j < bank->num_slots; j++) {
cfread_vector( &(bank->pnt[j]), fp );
cfread_vector( &(bank->norm[j]), fp );
}
}
break;
case ID_MPNT:
pm->n_missiles = cfread_int(fp);
pm->missile_banks = (w_bank *)malloc(sizeof(w_bank) * pm->n_missiles);
Assert( pm->missile_banks != NULL );
for (i = 0; i < pm->n_missiles; i++ ) {
w_bank *bank = &pm->missile_banks[i];
bank->num_slots = cfread_int(fp);
Assert ( bank->num_slots < MAX_SLOTS );
for (j = 0; j < bank->num_slots; j++) {
cfread_vector( &(bank->pnt[j]), fp );
cfread_vector( &(bank->norm[j]), fp );
}
}
break;
case ID_DOCK: {
char props[MAX_PROP_LEN];
pm->n_docks = cfread_int(fp);
pm->docking_bays = (dock_bay *)malloc(sizeof(dock_bay) * pm->n_docks);
Assert( pm->docking_bays != NULL );
for (i = 0; i < pm->n_docks; i++ ) {
char *p;
dock_bay *bay = &pm->docking_bays[i];
cfread_string_len( props, MAX_PROP_LEN, fp );
if ( (p = strstr(props, "$name"))!= NULL )
get_user_prop_value(p+5, bay->name);
else
sprintf(bay->name, "<unnamed bay %c>", 'A' + i);
bay->num_spline_paths = cfread_int( fp );
if ( bay->num_spline_paths > 0 ) {
bay->splines = (int *)malloc(sizeof(int) * bay->num_spline_paths);
for ( j = 0; j < bay->num_spline_paths; j++ )
bay->splines[j] = cfread_int(fp);
} else {
bay->splines = NULL;
}
// determine what this docking bay can be used for
if ( !strnicmp(bay->name, "cargo", 5) )
bay->type_flags = DOCK_TYPE_CARGO;
else
bay->type_flags = (DOCK_TYPE_REARM | DOCK_TYPE_GENERIC);
bay->num_slots = cfread_int(fp);
Assert( bay->num_slots == 2 ); // Get Allender if Asserted!
for (j = 0; j < bay->num_slots; j++) {
cfread_vector( &(bay->pnt[j]), fp );
cfread_vector( &(bay->norm[j]), fp );
}
}
break;
}
case ID_FUEL:
char props[MAX_PROP_LEN];
pm->n_thrusters = cfread_int(fp);
pm->thrusters = (thruster_bank *)malloc(sizeof(thruster_bank) * pm->n_thrusters);
Assert( pm->thrusters != NULL );
for (i = 0; i < pm->n_thrusters; i++ ) {
thruster_bank *bank = &pm->thrusters[i];
bank->num_slots = cfread_int(fp);
if (pm->version < 2117) {
bank->wash_info_index = -1;
} else {
cfread_string_len( props, MAX_PROP_LEN, fp );
// look for $engine_subsystem=xxx
int length = strlen(props);
if (length > 0) {
int base_length = strlen("$engine_subsystem=");
Assert( strstr( (const char *)&props, "$engine_subsystem=") != NULL );
Assert( length > base_length );
char *engine_subsys_name = props + base_length;
if (engine_subsys_name[0] == '$') {
engine_subsys_name++;
}
nprintf(("wash", "Ship %s with engine wash associated with subsys %s\n", filename, engine_subsys_name));
// set wash_info_index to invalid
int table_error = 1;
bank->wash_info_index = -1;
for (int k=0; k<n_subsystems; k++) {
if ( 0 == stricmp(subsystems[k].subobj_name, engine_subsys_name) ) {
bank->wash_info_index = subsystems[k].engine_wash_index;
if (bank->wash_info_index >= 0) {
table_error = 0;
}
break;
}
}
if ( (bank->wash_info_index == -1) && (n_subsystems > 0) ) {
if (table_error) {
Warning(LOCATION, "No engine wash table entry in ships.tbl for ship model %s", filename);
} else {
Warning(LOCATION, "Inconsistent model: Engine wash engine subsystem does not match any ship subsytem names for ship model %s", filename);
}
}
} else {
bank->wash_info_index = -1;
}
}
for (j = 0; j < bank->num_slots; j++) {
cfread_vector( &(bank->pnt[j]), fp );
cfread_vector( &(bank->norm[j]), fp );
if ( pm->version > 2004 ) {
bank->radius[j] = cfread_float( fp );
//mprintf(( "Rad = %.2f\n", rad ));
} else {
bank->radius[j] = 1.0f;
}
}
//mprintf(( "Num slots = %d\n", bank->num_slots ));
}
break;
case ID_TGUN:
case ID_TMIS: {
int n_banks, n_slots, parent;
model_subsystem *subsystemp;
int i, j, snum=-1;
n_banks = cfread_int(fp); // number of turret points
for ( i = 0; i < n_banks; i++ ) {
int physical_parent; // who are we attached to?
parent = cfread_int( fp ); // get the turret parent of the object
physical_parent = cfread_int(fp); // The parent subobj that this is physically attached to
if ( subsystems ) {
for ( snum = 0; snum < n_subsystems; snum++ ) {
subsystemp = &subsystems[snum];
if ( parent == subsystemp->subobj_num ) {
cfread_vector( &subsystemp->turret_norm, fp );
vm_vector_2_matrix(&subsystemp->turret_matrix,&subsystemp->turret_norm,NULL,NULL);
n_slots = cfread_int( fp );
subsystemp->turret_gun_sobj = physical_parent;
Assert(n_slots < MAX_TFP); // only MAX_TFP firing points per model_subsystem
for (j = 0; j < n_slots; j++ ) {
cfread_vector( &subsystemp->turret_firing_point[j], fp );
}
Assert( n_slots > 0 );
subsystemp->turret_num_firing_points = n_slots;
break;
}
}
}
//turret_gun_sobj
if ( (n_subsystems == 0) || (snum == n_subsystems) ) {
vector bogus;
nprintf(("Warning", "Turret object not found for turret firing point in model %s\n", model_filename));
cfread_vector( &bogus, fp );
n_slots = cfread_int( fp );
for (j = 0; j < n_slots; j++ )
cfread_vector( &bogus, fp );
}
}
break;
}
case ID_SPCL: {
char name[MAX_NAME_LEN], props[MAX_PROP_LEN], *p;
int n_specials;
float radius;
vector pnt;
n_specials = cfread_int(fp); // get the number of special subobjects we have
for (i = 0; i < n_specials; i++) {
// get the next free object of the subobject list. Flag error if no more room
cfread_string_len(name, MAX_NAME_LEN, fp); // get the name of this special polygon
cfread_string_len(props, MAX_PROP_LEN, fp); // will definately have properties as well!
cfread_vector( &pnt, fp );
radius = cfread_float( fp );
// check if $Split
p = strstr(name, "$split");
if (p != NULL) {
pm->split_plane[pm->num_split_plane] = pnt.xyz.z;
pm->num_split_plane++;
Assert(pm->num_split_plane <= MAX_SPLIT_PLANE);
} else if ( ( p = strstr(props, "$special"))!= NULL ) {
char type[32];
get_user_prop_value(p+9, type);
if ( !stricmp(type, "subsystem") ) // if we have a subsystem, put it into the list!
do_new_subsystem( n_subsystems, subsystems, -1, radius, &pnt, props, &name[1], pm->id ); // skip the first '$' character of the name
} else if ( strstr(name, "$enginelarge") || strstr(name, "$enginehuge") ){
do_new_subsystem( n_subsystems, subsystems, -1, radius, &pnt, props, &name[1], pm->id ); // skip the first '$' character of the name
} else {
nprintf(("Warning", "Unknown special object type %s while reading model %s\n", name, pm->filename));
}
}
break;
}
case ID_TXTR: { //Texture filename list
int i,n;
// char name_buf[128];
//mprintf(0,"Got chunk TXTR, len=%d\n",len);
n = cfread_int(fp);
pm->n_textures = n;
// Dont overwrite memory!!
Assert(n <= MAX_MODEL_TEXTURES);
//mprintf(0," num textures = %d\n",n);
for (i=0; i<n; i++ ) {
char tmp_name[256];
cfread_string_len(tmp_name,127,fp);
if ( strstr(tmp_name, "thruster") || strstr(tmp_name, "invisible") ) {
// Don't load textures for thruster animations or invisible textures
pm->textures[i] = -1;
} else {
pm->textures[i] = bm_load( tmp_name );
if (pm->textures[i]<0) {
Error( LOCATION, "Couldn't open texture '%s'\nreferenced by model '%s'\n", tmp_name, pm->filename );
}
}
pm->original_textures[i] = pm->textures[i];
//mprintf(0,"<%s>\n",name_buf);
}
break;
}
/* case ID_IDTA: //Interpreter data
//mprintf(0,"Got chunk IDTA, len=%d\n",len);
pm->model_data = (ubyte *)malloc(len);
pm->model_data_size = len;
Assert(pm->model_data != NULL );
cfread(pm->model_data,1,len,fp);
break;
*/
case ID_INFO: // don't need to do anything with info stuff
#ifndef NDEBUG
pm->debug_info_size = len;
pm->debug_info = (char *)malloc(pm->debug_info_size+1);
Assert(pm->debug_info!=NULL);
memset(pm->debug_info,0,len+1);
cfread( pm->debug_info, 1, len, fp );
#endif
break;
case ID_GRID:
break;
case ID_PATH:
pm->n_paths = cfread_int( fp );
pm->paths = (model_path *)malloc(sizeof(model_path)*pm->n_paths);
Assert( pm->paths != NULL );
for (i=0; i<pm->n_paths; i++ ) {
cfread_string_len(pm->paths[i].name , MAX_NAME_LEN-1, fp);
if ( pm->version >= 2002 ) {
// store the sub_model name number of the parent
cfread_string_len(pm->paths[i].parent_name , MAX_NAME_LEN-1, fp);
// get rid of leading '$' char in name
if ( pm->paths[i].parent_name[0] == '$' ) {
char tmpbuf[MAX_NAME_LEN];
strcpy(tmpbuf, pm->paths[i].parent_name+1);
strcpy(pm->paths[i].parent_name, tmpbuf);
}
// store the sub_model index (ie index into pm->submodel) of the parent
pm->paths[i].parent_submodel = -1;
for ( j = 0; j < pm->n_models; j++ ) {
if ( !stricmp( pm->submodel[j].name, pm->paths[i].parent_name) ) {
pm->paths[i].parent_submodel = j;
}
}
} else {
pm->paths[i].parent_name[0] = 0;
pm->paths[i].parent_submodel = -1;
}
pm->paths[i].nverts = cfread_int( fp );
pm->paths[i].verts = (mp_vert *)malloc( sizeof(mp_vert) * pm->paths[i].nverts );
pm->paths[i].goal = pm->paths[i].nverts - 1;
pm->paths[i].type = MP_TYPE_UNUSED;
pm->paths[i].value = 0;
Assert(pm->paths[i].verts!=NULL);
for (j=0; j<pm->paths[i].nverts; j++ ) {
cfread_vector(&pm->paths[i].verts[j].pos,fp );
pm->paths[i].verts[j].radius = cfread_float( fp );
{ // version 1802 added turret stuff
int nturrets, k;
nturrets = cfread_int( fp );
pm->paths[i].verts[j].nturrets = nturrets;
pm->paths[i].verts[j].turret_ids = (int *)malloc( sizeof(int) * nturrets );
for ( k = 0; k < nturrets; k++ )
pm->paths[i].verts[j].turret_ids[k] = cfread_int( fp );
}
}
}
break;
case ID_EYE: // an eye position(s)
{
int num_eyes, i;
// all eyes points are stored simply as vectors and their normals.
// 0th element is used as usual player view position.
num_eyes = cfread_int( fp );
pm->n_view_positions = num_eyes;
Assert ( num_eyes < MAX_EYES );
for (i = 0; i < num_eyes; i++ ) {
pm->view_positions[i].parent = cfread_int( fp );
cfread_vector( &pm->view_positions[i].pnt, fp );
cfread_vector( &pm->view_positions[i].norm, fp );
}
}
break;
case ID_INSG:
int num_ins, num_verts, num_faces, idx, idx2, idx3;
// get the # of insignias
num_ins = cfread_int(fp);
pm->num_ins = num_ins;
// read in the insignias
for(idx=0; idx<num_ins; idx++){
// get the detail level
pm->ins[idx].detail_level = cfread_int(fp);
// # of faces
num_faces = cfread_int(fp);
pm->ins[idx].num_faces = num_faces;
Assert(num_faces <= MAX_INS_FACES);
// # of vertices
num_verts = cfread_int(fp);
Assert(num_verts <= MAX_INS_VECS);
// read in all the vertices
for(idx2=0; idx2<num_verts; idx2++){
cfread_vector(&pm->ins[idx].vecs[idx2], fp);
}
// read in world offset
cfread_vector(&pm->ins[idx].offset, fp);
// read in all the faces
for(idx2=0; idx2<pm->ins[idx].num_faces; idx2++){
// read in 3 vertices
for(idx3=0; idx3<3; idx3++){
pm->ins[idx].faces[idx2][idx3] = cfread_int(fp);
pm->ins[idx].u[idx2][idx3] = cfread_float(fp);
pm->ins[idx].v[idx2][idx3] = cfread_float(fp);
}
}
}
break;
// autocentering info
case ID_ACEN:
cfread_vector(&pm->autocenter, fp);
pm->flags |= PM_FLAG_AUTOCEN;
break;
default:
mprintf(("Unknown chunk <%c%c%c%c>, len = %d\n",id,id>>8,id>>16,id>>24,len));
cfseek(fp,len,SEEK_CUR);
break;
}
cfseek(fp,next_chunk,SEEK_SET);
id = cfread_int(fp);
len = cfread_int(fp);
next_chunk = cftell(fp) + len;
}
#ifndef NDEBUG
if ( ss_fp) {
int size;
cfclose(ss_fp);
ss_fp = cfopen(debug_name, "rb");
if ( ss_fp ) {
size = cfilelength(ss_fp);
cfclose(ss_fp);
if ( size <= 0 ) {
_unlink(debug_name);
}
}
}
#endif
cfclose(fp);
// mprintf(("Done processing chunks\n"));
return 1;
}
//returns the number of this model
int model_load(char *filename, int n_subsystems, model_subsystem *subsystems)
{
int i, num, arc_idx;
if ( !model_initted )
model_init();
// int Model_ram = 0;
#ifndef NDEBUG
int ram_before = TotalRam;
#endif
//Assert(strlen(filename) <= 12);
num = -1;
for (i=0; i< MAX_POLYGON_MODELS; i++) {
if ( Polygon_models[i] ) {
if (!stricmp(filename, Polygon_models[i]->filename)) {
// Model already loaded; just return.
return Polygon_models[i]->id;
}
} else if ( num == -1 ) {
// This is the first empty slot
num = i;
}
}
// No empty slot
if ( num == -1 ) {
Error( LOCATION, "Too many models" );
return -1;
}
mprintf(( "Loading model '%s'\n", filename ));
polymodel * pm = (polymodel *)malloc( sizeof(polymodel) );
Polygon_models[num] = pm;
memset(pm, 0, sizeof(polymodel));
pm->n_paths = 0;
pm->paths = NULL;
int org_sig = Model_signature;
Model_signature+=MAX_POLYGON_MODELS;
if ( Model_signature < org_sig ) {
Model_signature = 0;
}
Assert( (Model_signature % MAX_POLYGON_MODELS) == 0 );
pm->id = Model_signature + num;
if (!read_model_file(pm, filename, n_subsystems, subsystems)) {
return -1;
}
//mprintf(( "Loading model '%s'\n", filename ));
//key_getch();
//=============================
// Find the destroyed replacement models
// Set up the default values
for (i=0; i<pm->n_models; i++ ) {
pm->submodel[i].my_replacement = -1; // assume nothing replaces this
pm->submodel[i].i_replace = -1; // assume this doesn't replaces anything
}
// Search for models that have destroyed versions
for (i=0; i<pm->n_models; i++ ) {
int j;
char destroyed_name[128];
strcpy( destroyed_name, pm->submodel[i].name );
strcat( destroyed_name, "-destroyed" );
for (j=0; j<pm->n_models; j++ ) {
if ( !stricmp( pm->submodel[j].name, destroyed_name )) {
// mprintf(( "Found destroyed model for '%s'\n", pm->submodel[i].name ));
pm->submodel[i].my_replacement = j;
pm->submodel[j].i_replace = i;
}
}
// Search for models with live debris
// This debris comes from a destroyed subsystem when ship is still alive
char live_debris_name[128];
strcpy( live_debris_name, "debris-" );
strcat( live_debris_name, pm->submodel[i].name );
pm->submodel[i].num_live_debris = 0;
for (j=0; j<pm->n_models; j++ ) {
// check if current model name is substring of destroyed
if ( strstr( pm->submodel[j].name, live_debris_name )) {
mprintf(( "Found live debris model for '%s'\n", pm->submodel[i].name ));
Assert(pm->submodel[i].num_live_debris < MAX_LIVE_DEBRIS);
pm->submodel[i].live_debris[pm->submodel[i].num_live_debris++] = j;
pm->submodel[j].is_live_debris = 1;
}
}
}
create_family_tree(pm);
// dump_object_tree(pm);
//==============================
// Find all the lower detail versions of the hires model
for (i=0; i<pm->n_models; i++ ) {
int j, l1;
bsp_info * sm1 = &pm->submodel[i];
// set all arc types to be default
for(arc_idx=0; arc_idx < MAX_ARC_EFFECTS; arc_idx++){
sm1->arc_type[arc_idx] = MARC_TYPE_NORMAL;
}
sm1->num_details = 0;
l1 = strlen(sm1->name);
for (j=0; j<pm->num_debris_objects;j++ ) {
if ( i == pm->debris_objects[j] ) {
sm1->is_damaged = 1;
}
}
for (j=0; j<MAX_MODEL_DETAIL_LEVELS; j++ ) {
sm1->details[j] = -1;
}
for (j=0; j<pm->n_models; j++ ) {
int k;
bsp_info * sm2 = &pm->submodel[j];
if ( i==j ) continue;
// set all arc types to be default
for(arc_idx=0; arc_idx < MAX_ARC_EFFECTS; arc_idx++){
sm2->arc_type[arc_idx] = MARC_TYPE_NORMAL;
}
// if sm2 is a detail of sm1 and sm1 is a high detail, then add it to sm1's list
if ((int)strlen(sm2->name)!=l1) continue;
int ndiff = 0;
int first_diff = 0;
for ( k=0; k<l1; k++) {
if (sm1->name[k] != sm2->name[k] ) {
if (ndiff==0) first_diff = k;
ndiff++;
}
}
if (ndiff==1) { // They only differ by one character!
int dl1, dl2;
dl1 = tolower(sm1->name[first_diff]) - 'a';
dl2 = tolower(sm2->name[first_diff]) - 'a';
if ( (dl1<0) || (dl2<0) || (dl1>=MAX_MODEL_DETAIL_LEVELS) || (dl2>=MAX_MODEL_DETAIL_LEVELS) ) continue; // invalid detail levels
if ( dl1 == 0 ) {
dl2--; // Start from 1 up...
if (dl2 >= sm1->num_details ) sm1->num_details = dl2+1;
sm1->details[dl2] = j;
//mprintf(( "Submodel '%s' is detail level %d of '%s'\n", sm2->name, dl2, sm1->name ));
}
}
}
for (j=0; j<sm1->num_details; j++ ) {
if ( sm1->details[j] == -1 ) {
Warning( LOCATION, "Model '%s' could find all detail levels for submodel '%s'", pm->filename, sm1->name );
sm1->num_details = 0;
}
}
}
model_octant_create( pm );
// Find the core_radius... the minimum of
float rx, ry, rz;
rx = fl_abs( pm->submodel[pm->detail[0]].max.xyz.x - pm->submodel[pm->detail[0]].min.xyz.x );
ry = fl_abs( pm->submodel[pm->detail[0]].max.xyz.y - pm->submodel[pm->detail[0]].min.xyz.y );
rz = fl_abs( pm->submodel[pm->detail[0]].max.xyz.z - pm->submodel[pm->detail[0]].min.xyz.z );
pm->core_radius = min( rx, min(ry, rz) ) / 2.0f;
for (i=0; i<pm->n_view_positions; i++ ) {
if ( pm->view_positions[i].parent == pm->detail[0] ) {
float d = vm_vec_mag( &pm->view_positions[i].pnt );
d += 0.1f; // Make the eye 1/10th of a meter inside the sphere.
if ( d > pm->core_radius ) {
//mprintf(( "Model %s core radius increased from %.1f to %.1f to fit eye\n", pm->filename, pm->core_radius, d ));
pm->core_radius = d;
}
}
}
#ifndef NDEBUG
int ram_after = TotalRam;
pm->ram_used = ram_after - ram_before;
Model_ram += pm->ram_used;
//mprintf(( "Model RAM = %d KB\n", Model_ram ));
#endif
return pm->id;
}
// Get "parent" submodel for live debris submodel
int model_get_parent_submodel_for_live_debris( int model_num, int live_debris_model_num )
{
polymodel *pm = model_get(model_num);
Assert(pm->submodel[live_debris_model_num].is_live_debris == 1);
int mn;
bsp_info *child;
// Start with the high level of detail hull
// Check all its children until we find the submodel to which the live debris belongs
child = &pm->submodel[pm->detail[0]];
mn = child->first_child;
while (mn > 0) {
child = &pm->submodel[mn];
if (child->num_live_debris > 0) {
// check all live debris submodels for the current child
for (int idx=0; idx<child->num_live_debris; idx++) {
if (child->live_debris[idx] == live_debris_model_num) {
return mn;
}
}
// DKA 5/26/99: can multiple live debris subsystems with each ship
// NO LONGER TRUE Can only be 1 submodel with live debris
// Error( LOCATION, "Could not find parent submodel for live debris. Possible model error");
}
// get next child
mn = child->next_sibling;
}
Error( LOCATION, "Could not find parent submodel for live debris");
return -1;
}
float model_get_radius( int modelnum )
{
polymodel *pm;
pm = model_get(modelnum);
return pm->rad;
}
float model_get_core_radius( int modelnum )
{
polymodel *pm;
pm = model_get(modelnum);
return pm->core_radius;
}
float submodel_get_radius( int modelnum, int submodelnum )
{
polymodel *pm;
pm = model_get(modelnum);
return pm->submodel[submodelnum].rad;
}
polymodel * model_get(int model_num)
{
Assert( model_num > -1 );
int num = model_num % MAX_POLYGON_MODELS;
Assert( num > -1 );
Assert( num < MAX_POLYGON_MODELS );
Assert( Polygon_models[num]->id == model_num );
return Polygon_models[num];
}
/*
// Finds the 3d bounding box of a model. If submodel_num is -1,
// then it starts from the root object. If inc_children is non-zero,
// then this will recurse and find the bounding box for all children
// also.
void model_find_bound_box_3d(int model_num,int submodel_num, int inc_children, matrix *orient, vector * pos, vector * box )
{
polymodel * pm;
vector to_root_xlat;
matrix to_root_rotate;
int n_steps, steps[16];
int tmp_sobj;
if ( (model_num < 0) || (model_num >= N_polygon_models) ) return;
pm = &Polygon_models[model_num];
if ( submodel_num < 0 ) submodel_num = pm->detail[0];
// traverse up the model tree to a root object.
// Store this path in n_steps,
n_steps = 0;
tmp_sobj = submodel_num;
while( tmp_sobj > -1 ) {
steps[n_steps++] = tmp_sobj;
tmp_sobj = pm->submodel[tmp_sobj].parent;
}
// vm_copy_transpose_matrix(&to_world_rotate, orient );
// to_world_xlat = *pos;
}
*/
// Returns zero is x1,y1,x2,y2 are valid
// returns 1 for invalid model, 2 for point offscreen.
// note that x1,y1,x2,y2 aren't clipped to 2d screen coordinates!
int model_find_2d_bound_min(int model_num,matrix *orient, vector * pos,int *x1, int *y1, int *x2, int *y2 )
{
polymodel * po;
int n_valid_pts;
int i, x,y,min_x, min_y, max_x, max_y;
int rval = 0;
po = model_get(model_num);
g3_start_instance_matrix(pos,orient);
n_valid_pts = 0;
int hull = po->detail[0];
min_x = min_y = max_x = max_y = 0;
for (i=0; i<8; i++ ) {
vertex pt;
ubyte flags;
flags = g3_rotate_vertex(&pt,&po->submodel[hull].bounding_box[i]);
if ( !(flags&CC_BEHIND) ) {
g3_project_vertex(&pt);
if (!(pt.flags & PF_OVERFLOW)) {
x = fl2i(pt.sx);
y = fl2i(pt.sy);
if ( n_valid_pts == 0 ) {
min_x = x;
min_y = y;
max_x = x;
max_y = y;
} else {
if ( x < min_x ) min_x = x;
if ( y < min_y ) min_y = y;
if ( x > max_x ) max_x = x;
if ( y > max_y ) max_y = y;
}
n_valid_pts++;
}
}
}
if ( n_valid_pts < 8 ) {
rval = 2;
}
if (x1) *x1 = min_x;
if (y1) *y1 = min_y;
if (x2) *x2 = max_x;
if (y2) *y2 = max_y;
g3_done_instance();
return rval;
}
// Returns zero is x1,y1,x2,y2 are valid
// returns 1 for invalid model, 2 for point offscreen.
// note that x1,y1,x2,y2 aren't clipped to 2d screen coordinates!
int submodel_find_2d_bound_min(int model_num,int submodel, matrix *orient, vector * pos,int *x1, int *y1, int *x2, int *y2 )
{
polymodel * po;
int n_valid_pts;
int i, x,y,min_x, min_y, max_x, max_y;
bsp_info * sm;
po = model_get(model_num);
if ( (submodel < 0) || (submodel >= po->n_models ) ) return 1;
sm = &po->submodel[submodel];
g3_start_instance_matrix(pos,orient);
n_valid_pts = 0;
min_x = min_y = max_x = max_y = 0;
for (i=0; i<8; i++ ) {
vertex pt;
ubyte flags;
flags = g3_rotate_vertex(&pt,&sm->bounding_box[i]);
if ( !(flags&CC_BEHIND) ) {
g3_project_vertex(&pt);
if (!(pt.flags & PF_OVERFLOW)) {
x = fl2i(pt.sx);
y = fl2i(pt.sy);
if ( n_valid_pts == 0 ) {
min_x = x;
min_y = y;
max_x = x;
max_y = y;
} else {
if ( x < min_x ) min_x = x;
if ( y < min_y ) min_y = y;
if ( x > max_x ) max_x = x;
if ( y > max_y ) max_y = y;
}
n_valid_pts++;
}
}
}
if ( n_valid_pts == 0 ) {
return 2;
}
if (x1) *x1 = min_x;
if (y1) *y1 = min_y;
if (x2) *x2 = max_x;
if (y2) *y2 = max_y;
g3_done_instance();
return 0;
}
// Returns zero is x1,y1,x2,y2 are valid
// returns 1 for invalid model, 2 for point offscreen.
// note that x1,y1,x2,y2 aren't clipped to 2d screen coordinates!
int model_find_2d_bound(int model_num,matrix *orient, vector * pos,int *x1, int *y1, int *x2, int *y2 )
{
float t,w,h;
vertex pnt;
ubyte flags;
polymodel * po;
po = model_get(model_num);
float width = po->rad;
float height = po->rad;
flags = g3_rotate_vertex(&pnt,pos);
if ( pnt.flags & CC_BEHIND )
return 2;
if (!(pnt.flags&PF_PROJECTED))
g3_project_vertex(&pnt);
if (pnt.flags & PF_OVERFLOW)
return 2;
t = (width * Canv_w2)/pnt.z;
w = t*Matrix_scale.xyz.x;
t = (height*Canv_h2)/pnt.z;
h = t*Matrix_scale.xyz.y;
if (x1) *x1 = fl2i(pnt.sx - w);
if (y1) *y1 = fl2i(pnt.sy - h);
if (x2) *x2 = fl2i(pnt.sx + w);
if (y2) *y2 = fl2i(pnt.sy + h);
return 0;
}
// Returns zero is x1,y1,x2,y2 are valid
// returns 2 for point offscreen.
// note that x1,y1,x2,y2 aren't clipped to 2d screen coordinates!
int subobj_find_2d_bound(float radius ,matrix *orient, vector * pos,int *x1, int *y1, int *x2, int *y2 )
{
float t,w,h;
vertex pnt;
ubyte flags;
float width = radius;
float height = radius;
flags = g3_rotate_vertex(&pnt,pos);
if ( pnt.flags & CC_BEHIND )
return 2;
if (!(pnt.flags&PF_PROJECTED))
g3_project_vertex(&pnt);
if (pnt.flags & PF_OVERFLOW)
return 2;
t = (width * Canv_w2)/pnt.z;
w = t*Matrix_scale.xyz.x;
t = (height*Canv_h2)/pnt.z;
h = t*Matrix_scale.xyz.y;
if (x1) *x1 = fl2i(pnt.sx - w);
if (y1) *y1 = fl2i(pnt.sy - h);
if (x2) *x2 = fl2i(pnt.sx + w);
if (y2) *y2 = fl2i(pnt.sy + h);
return 0;
}
// Given a vector that is in sub_model_num's frame of
// reference, and given the object's orient and position,
// return the vector in the model's frame of reference.
void model_find_obj_dir(vector *w_vec, vector *m_vec, object *ship_obj, int sub_model_num)
{
vector tvec, vec;
matrix m;
int mn;
Assert(ship_obj->type == OBJ_SHIP);
polymodel *pm = model_get(Ships[ship_obj->instance].modelnum);
vec = *m_vec;
mn = sub_model_num;
// instance up the tree for this point
while ((mn>-1) && (pm->submodel[mn].parent > -1)) {
vm_angles_2_matrix(&m, &pm->submodel[mn].angs);
vm_vec_unrotate(&tvec, &vec, &m);
vec = tvec;
mn = pm->submodel[mn].parent;
}
// now instance for the entire object
vm_vec_unrotate(w_vec, &vec, &ship_obj->orient);
}
// Given a point (pnt) that is in sub_model_num's frame of
// reference, return the point in in the object's frame of reference
void model_rot_sub_into_obj(vector * outpnt, vector *mpnt,polymodel *pm, int sub_model_num)
{
vector pnt;
vector tpnt;
matrix m;
int mn;
pnt = *mpnt;
mn = sub_model_num;
//instance up the tree for this point
while ((mn>-1) && (pm->submodel[mn].parent > -1) ) {
vm_angles_2_matrix(&m,&pm->submodel[mn].angs );
vm_transpose_matrix(&m);
vm_vec_rotate(&tpnt,&pnt,&m);
vm_vec_add(&pnt,&tpnt,&pm->submodel[mn].offset );
mn = pm->submodel[mn].parent;
}
//now instance for the entire object
*outpnt = pnt;
}
// Given a rotating submodel, find the ship and world axes or rotatation.
void model_get_rotating_submodel_axis(vector *model_axis, vector *world_axis, int modelnum, int submodel_num, object *obj)
{
polymodel *pm = model_get(modelnum);
bsp_info *sm = &pm->submodel[submodel_num];
Assert(sm->movement_type == MOVEMENT_TYPE_ROT);
if (sm->movement_axis == MOVEMENT_AXIS_X) {
vm_vec_make(model_axis, 1.0f, 0.0f, 0.0f);
} else if (sm->movement_axis == MOVEMENT_AXIS_Y) {
vm_vec_make(model_axis, 0.0f, 1.0f, 0.0f);
} else {
Assert(sm->movement_axis == MOVEMENT_AXIS_Z);
vm_vec_make(model_axis, 0.0f, 0.0f, 1.0f);
}
model_find_obj_dir(world_axis, model_axis, obj, submodel_num);
}
// Does stepped rotation of a submodel
#pragma warning ( push )
#pragma warning (disable : 4701)
void submodel_stepped_rotate(model_subsystem *psub, submodel_instance_info *sii)
{
Assert(psub->flags & MSS_FLAG_STEPPED_ROTATE);
if ( psub->subobj_num < 0 ) return;
polymodel *pm = model_get(psub->model_num);
bsp_info *sm = &pm->submodel[psub->subobj_num];
if ( sm->movement_type != MOVEMENT_TYPE_ROT ) return;
// get active rotation time this frame
int end_stamp = timestamp();
float rotation_time = 0.001f * (end_stamp - sii->step_zero_timestamp);
Assert(rotation_time >= 0);
// save last angles
sii->prev_angs = sii->angs;
// float pointer into struct to get angle (either p,b,h)
float *ang_prev, *ang_next;
switch( sm->movement_axis ) {
case MOVEMENT_AXIS_X:
ang_prev = &sii->prev_angs.p;
ang_next = &sii->angs.p;
break;
case MOVEMENT_AXIS_Y:
ang_prev = &sii->prev_angs.h;
ang_next = &sii->angs.h;
break;
case MOVEMENT_AXIS_Z:
ang_prev = &sii->prev_angs.b;
ang_next = &sii->angs.b;
break;
}
// angular displacement of one step
float step_size = (PI2 / psub->stepped_rotation->num_steps);
// get time to complete one step, including pause
float step_time = psub->stepped_rotation->t_transit + psub->stepped_rotation->t_pause;
// cur_step is step number relative to zero (0 - num_steps)
// step_offset_time is TIME into current step
float step_offset_time = (float)fmod(rotation_time, step_time);
// subtract off fractional step part, round up (ie, 1.999999 -> 2)
int cur_step = int( ((rotation_time - step_offset_time) / step_time) + 0.5f);
// mprintf(("cur step %d\n", cur_step));
// Assert(step_offset_time >= 0);
if (cur_step >= psub->stepped_rotation->num_steps) {
// I don;t know why, but removing this line makes it all good.
// sii->step_zero_timestamp += int(1000.0f * (psub->stepped_rotation->num_steps * step_time) + 0.5f);
// reset cur_step (use mod to handle physics/ai pause)
cur_step = cur_step % psub->stepped_rotation->num_steps;
}
// get base angle
*ang_next = cur_step * step_size;
// determine which phase of rotation we're in
float coast_start_time = psub->stepped_rotation->fraction * psub->stepped_rotation->t_transit;
float decel_start_time = psub->stepped_rotation->t_transit * (1.0f - psub->stepped_rotation->fraction);
float pause_start_time = psub->stepped_rotation->t_transit;
float start_coast_angle = 0.5f * psub->stepped_rotation->max_turn_accel * coast_start_time * coast_start_time;
if (step_offset_time < coast_start_time) {
// do accel
float accel_time = step_offset_time;
*ang_next += 0.5f * psub->stepped_rotation->max_turn_accel * accel_time * accel_time;
sii->cur_turn_rate = psub->stepped_rotation->max_turn_accel * accel_time;
} else if (step_offset_time < decel_start_time) {
// do coast
float coast_time = step_offset_time - coast_start_time;
*ang_next += start_coast_angle + psub->stepped_rotation->max_turn_rate * coast_time;
sii->cur_turn_rate = psub->stepped_rotation->max_turn_rate;
} else if (step_offset_time < pause_start_time) {
// do decel
float time_to_pause = psub->stepped_rotation->t_transit - step_offset_time;
*ang_next += (step_size - 0.5f * psub->stepped_rotation->max_turn_accel * time_to_pause * time_to_pause);
sii->cur_turn_rate = psub->stepped_rotation->max_turn_rate * time_to_pause;
} else {
// do pause
*ang_next += step_size;
sii->cur_turn_rate = 0.0f;
}
}
#pragma warning ( pop )
// Rotates the angle of a submodel. Use this so the right unlocked axis
// gets stuffed.
void submodel_rotate(model_subsystem *psub, submodel_instance_info *sii)
{
bsp_info * sm;
if ( psub->subobj_num < 0 ) return;
polymodel *pm = model_get(psub->model_num);
sm = &pm->submodel[psub->subobj_num];
if ( sm->movement_type != MOVEMENT_TYPE_ROT ) return;
// save last angles
sii->prev_angs = sii->angs;
// probably send in a calculated desired turn rate
float diff = sii->desired_turn_rate - sii->cur_turn_rate;
float final_turn_rate;
if (diff > 0) {
final_turn_rate = sii->cur_turn_rate + sii->turn_accel * flFrametime;
if (final_turn_rate > sii->desired_turn_rate) {
final_turn_rate = sii->desired_turn_rate;
}
} else if (diff < 0) {
final_turn_rate = sii->cur_turn_rate - sii->turn_accel * flFrametime;
if (final_turn_rate < sii->desired_turn_rate) {
final_turn_rate = sii->desired_turn_rate;
}
} else {
final_turn_rate = sii->desired_turn_rate;
}
float delta = (sii->cur_turn_rate + final_turn_rate) * 0.5f * flFrametime;
sii->cur_turn_rate = final_turn_rate;
//float delta = psub->turn_rate * flFrametime;
switch( sm->movement_axis ) {
case MOVEMENT_AXIS_X:
sii->angs.p += delta;
if (sii->angs.p > PI2 )
sii->angs.p -= PI2;
else if (sii->angs.p < 0.0f )
sii->angs.p += PI2;
break;
case MOVEMENT_AXIS_Y:
sii->angs.h += delta;
if (sii->angs.h > PI2 )
sii->angs.h -= PI2;
else if (sii->angs.h < 0.0f )
sii->angs.h += PI2;
break;
case MOVEMENT_AXIS_Z:
sii->angs.b += delta;
if (sii->angs.b > PI2 )
sii->angs.b -= PI2;
else if (sii->angs.b < 0.0f )
sii->angs.b += PI2;
break;
}
}
//=========================================================================
// Make a turret's correct orientation matrix. This should be done when
// the model is read, but I wasn't sure at what point all the data that I
// needed was read, so I just check a flag and call this routine when
// I determine I need the correct matrix. In this code, you can't use
// vm_vec_2_matrix or anything, since these turrets could be either
// right handed or left handed.
void model_make_turrent_matrix(int model_num, model_subsystem * turret )
{
polymodel * pm;
vector fvec, uvec, rvec;
pm = model_get(model_num);
bsp_info * sm = &pm->submodel[turret->turret_gun_sobj];
bsp_info * sm_parent = &pm->submodel[turret->subobj_num];
model_clear_instance(model_num);
model_find_world_dir(&fvec, &turret->turret_norm, model_num, turret->turret_gun_sobj, &vmd_identity_matrix, NULL );
sm_parent->angs.h = -PI/2.0f;
sm->angs.p = -PI/2.0f;
model_find_world_dir(&rvec, &turret->turret_norm, model_num, turret->turret_gun_sobj, &vmd_identity_matrix, NULL );
sm_parent->angs.h = 0.0f;
sm->angs.p = -PI/2.0f;
model_find_world_dir(&uvec, &turret->turret_norm, model_num, turret->turret_gun_sobj, &vmd_identity_matrix, NULL );
vm_vec_normalize(&fvec);
vm_vec_normalize(&rvec);
vm_vec_normalize(&uvec);
turret->turret_matrix.vec.fvec = fvec;
turret->turret_matrix.vec.rvec = rvec;
turret->turret_matrix.vec.uvec = uvec;
// vm_vector_2_matrix(&turret->turret_matrix,&turret->turret_norm,NULL,NULL);
// HACK!! WARNING!!!
// I'm doing nothing to verify that this matrix is orthogonal!!
// In other words, there's no guarantee that the vectors are 90 degrees
// from each other.
// I'm not doing this because I don't know how to do it without ruining
// the handedness of the matrix... however, I'm not too worried about
// this because I am creating these 3 vectors by making them 90 degrees
// apart, so this should be close enough. I think this will start
// causing weird errors when we view from turrets. -John
turret->flags |= MSS_FLAG_TURRET_MATRIX;
}
// Tries to move joints so that the turrent points to the point dst.
// turret1 is the angles of the turret, turret2 is the angles of the gun from turret
// Returns 1 if rotated gun, 0 if no gun to rotate (rotation handled by AI)
int model_rotate_gun(int model_num, model_subsystem *turret, matrix *orient, angles *turret1, angles *turret2, vector *pos, vector *dst)
{
polymodel * pm;
pm = model_get(model_num);
bsp_info * sm = &pm->submodel[turret->turret_gun_sobj];
bsp_info * sm_parent = &pm->submodel[turret->subobj_num];
// Check for a valid turret
Assert( turret->turret_num_firing_points > 0 );
if ( sm_parent == sm ) {
return 0;
}
// Build the correct turret matrix if there isn't already one
if ( !(turret->flags & MSS_FLAG_TURRET_MATRIX) )
model_make_turrent_matrix(model_num, turret );
Assert( turret->flags & MSS_FLAG_TURRET_MATRIX);
// Assert( sm->movement_axis == MOVEMENT_AXIS_X ); // Gun must be able to change pitch
// Assert( sm_parent->movement_axis == MOVEMENT_AXIS_Z ); // Parent must be able to change heading
//======================================================
// DEBUG code to draw the normal out of this gun and a circle
// at the gun point.
#if 0
{
vector tmp;
vector tmp1;
vertex dpnt1, dpnt2;
model_clear_instance(model_num);
sm->angs.p = turret2->p;
sm_parent->angs.h = turret1->h;
model_find_world_point(&tmp, &vmd_zero_vector, model_num, turret->turret_gun_sobj, orient, pos );
gr_set_color(255,0,0);
g3_rotate_vertex( &dpnt1, &tmp );
gr_set_color(255,0,0);
g3_draw_sphere(&dpnt1,1.0f);
vm_vec_copy_scale( &tmp1, &turret->turret_matrix.vec.fvec, 10.0f );
model_find_world_point(&tmp, &tmp1, model_num, turret->turret_gun_sobj, orient, pos );
g3_rotate_vertex( &dpnt2, &tmp );
gr_set_color(0,255,0);
g3_draw_line(&dpnt1,&dpnt2);
gr_set_color(0,128,0);
g3_draw_sphere(&dpnt2,0.2f);
vm_vec_copy_scale( &tmp1, &turret->turret_matrix.vec.rvec, 10.0f );
model_find_world_point(&tmp, &tmp1, model_num, turret->turret_gun_sobj, orient, pos );
g3_rotate_vertex( &dpnt2, &tmp );
gr_set_color(0,0,255);
g3_draw_line(&dpnt1,&dpnt2);
vm_vec_copy_scale( &tmp1, &turret->turret_matrix.vec.uvec, 10.0f );
model_find_world_point(&tmp, &tmp1, model_num, turret->turret_gun_sobj, orient, pos );
g3_rotate_vertex( &dpnt2, &tmp );
gr_set_color(255,0,0);
g3_draw_line(&dpnt1,&dpnt2);
}
#endif
//------------
// rotate the dest point into the turret gun normal's frame of
// reference, but not using the turret's angles.
// Call this vector of_dst
vector of_dst;
matrix world_to_turret_matrix; // converts world coordinates to turret's FOR
vector world_to_turret_translate; // converts world coordinates to turret's FOR
vector tempv;
vm_vec_unrotate( &tempv, &sm_parent->offset, orient);
vm_vec_add( &world_to_turret_translate, pos, &tempv );
vm_matrix_x_matrix( &world_to_turret_matrix, orient, &turret->turret_matrix );
vm_vec_sub( &tempv, dst, &world_to_turret_translate );
vm_vec_rotate( &of_dst, &tempv, &world_to_turret_matrix );
vm_vec_normalize(&of_dst);
//------------
// Find the heading and pitch that the gun needs to turn to
// by extracting them from the of_dst vector.
// Call this the desired_angles
angles desired_angles;
desired_angles.p = (float)acos(of_dst.xyz.z);
desired_angles.h = PI - atan2_safe(of_dst.xyz.x, of_dst.xyz.y);
desired_angles.b = 0.0f;
// mprintf(( "Z = %.1f, atan= %.1f\n", of_dst.xyz.z, desired_angles.p ));
//------------
// Gradually turn the turret towards the desired angles
float step_size = turret->turret_turning_rate * flFrametime;
vm_interp_angle(&turret1->h,desired_angles.h,step_size);
vm_interp_angle(&turret2->p,desired_angles.p,step_size);
// turret1->h -= step_size*(key_down_timef(KEY_1)-key_down_timef(KEY_2) );
// turret2->p += step_size*(key_down_timef(KEY_3)-key_down_timef(KEY_4) );
return 1;
}
// Given a point (pnt) that is in sub_model_num's frame of
// reference, and given the object's orient and position,
// return the point in 3-space in outpnt.
void model_find_world_point(vector * outpnt, vector *mpnt,int model_num,int sub_model_num, matrix * objorient, vector * objpos )
{
vector pnt;
vector tpnt;
matrix m;
int mn;
polymodel *pm = model_get(model_num);
pnt = *mpnt;
mn = sub_model_num;
//instance up the tree for this point
while ((mn>-1) && (pm->submodel[mn].parent > -1) ) {
vm_angles_2_matrix(&m,&pm->submodel[mn].angs );
vm_vec_unrotate(&tpnt,&pnt,&m);
vm_vec_add(&pnt,&tpnt,&pm->submodel[mn].offset );
mn = pm->submodel[mn].parent;
}
//now instance for the entire object
vm_vec_unrotate(outpnt,&pnt,objorient);
vm_vec_add2(outpnt,objpos);
}
// Given a point in the world RF, find the corresponding point in the model RF.
// This is special purpose code, specific for model collision.
// NOTE - this code ASSUMES submodel is 1 level down from hull (detail[0])
//
// out - point in model RF
// world_pt - point in world RF
// pm - polygon model
// submodel_num - submodel in whose RF we're trying to find the corresponding world point
// orient - orient matrix of ship
// pos - pos vector of ship
void world_find_model_point(vector *out, vector *world_pt, polymodel *pm, int submodel_num, matrix *orient, vector *pos)
{
Assert( (pm->submodel[submodel_num].parent == pm->detail[0]) || (pm->submodel[submodel_num].parent == -1) );
vector tempv1, tempv2;
matrix m;
// get into ship RF
vm_vec_sub(&tempv1, world_pt, pos);
vm_vec_rotate(&tempv2, &tempv1, orient);
if (pm->submodel[submodel_num].parent == -1) {
*out = tempv2;
return;
}
// put into submodel RF
vm_vec_sub2(&tempv2, &pm->submodel[submodel_num].offset);
vm_angles_2_matrix(&m, &pm->submodel[submodel_num].angs);
vm_vec_rotate(out, &tempv2, &m);
}
// Verify rotating submodel has corresponding ship subsystem -- info in which to store rotation angle
int rotating_submodel_has_ship_subsys(int submodel, ship *shipp)
{
model_subsystem *psub;
ship_subsys *pss;
int found = 0;
// Go through all subsystems and look for submodel
// the subsystems that need it.
for ( pss = GET_FIRST(&shipp->subsys_list); pss != END_OF_LIST(&shipp->subsys_list); pss = GET_NEXT(pss) ) {
psub = pss->system_info;
if (psub->subobj_num == submodel) {
found = 1;
break;
}
}
return found;
}
void model_get_rotating_submodel_list(int *submodel_list, int *num_rotating_submodels, object *objp)
{
Assert(objp->type == OBJ_SHIP);
// Check if not currently rotating - then treat as part of superstructure.
int modelnum = Ships[objp->instance].modelnum;
polymodel *pm = model_get(modelnum);
bsp_info *child_submodel;
*num_rotating_submodels = 0;
child_submodel = &pm->submodel[pm->detail[0]];
int i = child_submodel->first_child;
while ( i>-1 ) {
child_submodel = &pm->submodel[i];
// Don't check it or its children if it is destroyed or it is a replacement (non-moving)
if ( !child_submodel->blown_off && (child_submodel->i_replace == -1) ) {
// Only look for submodels that rotate
if (child_submodel->movement_type == MOVEMENT_TYPE_ROT) {
// find ship subsys and check submodel rotation is less than max allowed.
ship *pship = &Ships[objp->instance];
ship_subsys *subsys;
for ( subsys = GET_FIRST(&pship->subsys_list); subsys !=END_OF_LIST(&pship->subsys_list); subsys = GET_NEXT(subsys) ) {
Assert(subsys->system_info->model_num == modelnum);
if (i == subsys->system_info->subobj_num) {
// found the correct subsystem - now check delta rotation angle not too large
float delta_angle = get_submodel_delta_angle(&subsys->submodel_info_1);
if (delta_angle < MAX_SUBMODEL_COLLISION_ROT_ANGLE) {
Assert(*num_rotating_submodels < MAX_ROTATING_SUBMODELS-1);
submodel_list[(*num_rotating_submodels)++] = i;
}
break;
}
}
}
}
i = child_submodel->next_sibling;
}
// error checking
//#define MODEL_CHECK
#ifdef MODEL_CHECK
ship *pship = &Ships[objp->instance];
for (int idx=0; idx<*num_rotating_submodels; idx++) {
int valid = rotating_submodel_has_ship_subsys(submodel_list[idx], pship);
// Assert( valid );
if ( !valid ) {
Warning( LOCATION, "Ship %s has rotating submodel [%s] without ship subsystem\n", pship->ship_name, pm->submodel[submodel_list[idx]].name );
pm->submodel[submodel_list[idx]].movement_type &= ~MOVEMENT_TYPE_ROT;
*num_rotating_submodels = 0;
}
}
#endif
}
// Given a direction (pnt) that is in sub_model_num's frame of
// reference, and given the object's orient and position,
// return the point in 3-space in outpnt.
void model_find_world_dir(vector * out_dir, vector *in_dir,int model_num, int sub_model_num, matrix * objorient, vector * objpos )
{
vector pnt;
vector tpnt;
matrix m;
int mn;
polymodel *pm = model_get(model_num);
pnt = *in_dir;
mn = sub_model_num;
//instance up the tree for this point
while ((mn>-1) && (pm->submodel[mn].parent > -1) ) {
vm_angles_2_matrix(&m,&pm->submodel[mn].angs );
vm_vec_unrotate(&tpnt,&pnt,&m);
pnt = tpnt;
mn = pm->submodel[mn].parent;
}
//now instance for the entire object
vm_vec_unrotate(out_dir,&pnt,objorient);
}
// Clears all the submodel instances stored in a model to their defaults.
void model_clear_instance(int model_num)
{
polymodel * pm;
int i;
pm = model_get(model_num);
// reset textures to original ones
for (i=0; i<pm->n_textures; i++ ) {
pm->textures[i] = pm->original_textures[i];
}
for (i=0; i<pm->n_models; i++ ) {
bsp_info *sm = &pm->submodel[i];
if ( pm->submodel[i].is_damaged ) {
sm->blown_off = 1;
} else {
sm->blown_off = 0;
}
sm->angs.p = 0.0f;
sm->angs.b = 0.0f;
sm->angs.h = 0.0f;
// set pointer to other ship subsystem info [turn rate, accel, moment, axis, ...]
sm->sii = NULL;
sm->num_arcs = 0; // Turn off any electric arcing effects
}
for (i=0; i<pm->num_lights; i++ ) {
pm->lights[i].value = 0.0f;
}
interp_clear_instance();
// if ( keyd_pressed[KEY_1] ) pm->lights[0].value = 1.0f/255.0f;
// if ( keyd_pressed[KEY_2] ) pm->lights[1].value = 1.0f/255.0f;
// if ( keyd_pressed[KEY_3] ) pm->lights[2].value = 1.0f/255.0f;
// if ( keyd_pressed[KEY_4] ) pm->lights[3].value = 1.0f/255.0f;
// if ( keyd_pressed[KEY_5] ) pm->lights[4].value = 1.0f/255.0f;
// if ( keyd_pressed[KEY_6] ) pm->lights[5].value = 1.0f/255.0f;
}
// initialization during ship set
void model_clear_instance_info( submodel_instance_info * sii )
{
sii->blown_off = 0;
sii->angs.p = 0.0f;
sii->angs.b = 0.0f;
sii->angs.h = 0.0f;
sii->prev_angs.p = 0.0f;
sii->prev_angs.b = 0.0f;
sii->prev_angs.h = 0.0f;
sii->cur_turn_rate = 0.0f;
sii->desired_turn_rate = 0.0f;
sii->turn_accel = 0.0f;
}
// initialization during ship set
void model_set_instance_info(submodel_instance_info *sii, float turn_rate, float turn_accel)
{
sii->blown_off = 0;
sii->angs.p = 0.0f;
sii->angs.b = 0.0f;
sii->angs.h = 0.0f;
sii->prev_angs.p = 0.0f;
sii->prev_angs.b = 0.0f;
sii->prev_angs.h = 0.0f;
sii->cur_turn_rate = turn_rate * 0.0f;
sii->desired_turn_rate = turn_rate;
sii->turn_accel = turn_accel;
sii->axis_set = 0;
sii->step_zero_timestamp = timestamp();
}
// Sets the submodel instance data in a submodel (for all detail levels)
void model_set_instance(int model_num, int sub_model_num, submodel_instance_info * sii)
{
int i;
polymodel * pm;
pm = model_get(model_num);
Assert( sub_model_num >= 0 );
Assert( sub_model_num < pm->n_models );
if ( sub_model_num < 0 ) return;
if ( sub_model_num >= pm->n_models ) return;
bsp_info *sm = &pm->submodel[sub_model_num];
// Set the "blown out" flags
sm->blown_off = sii->blown_off;
if ( sm->blown_off ) {
if ( sm->my_replacement > -1 ) {
pm->submodel[sm->my_replacement].blown_off = 0;
pm->submodel[sm->my_replacement].angs = sii->angs;
pm->submodel[sm->my_replacement].sii = sii;
}
} else {
if ( sm->my_replacement > -1 ) {
pm->submodel[sm->my_replacement].blown_off = 1;
}
}
// Set the angles
sm->angs = sii->angs;
sm->sii = sii;
// For all the detail levels of this submodel, set them also.
for (i=0; i<sm->num_details; i++ ) {
model_set_instance(model_num, sm->details[i], sii );
}
}
// Finds a point on the rotation axis of a submodel, used in collision, generally find rotational velocity
void model_init_submodel_axis_pt(submodel_instance_info *sii, int model_num, int submodel_num)
{
vector axis;
vector *mpoint1, *mpoint2;
vector p1, v1, p2, v2, int1;
polymodel *pm = model_get(model_num);
Assert(pm->submodel[submodel_num].movement_type == MOVEMENT_TYPE_ROT);
Assert(sii);
mpoint1 = NULL;
mpoint2 = NULL;
// find 2 fixed points in submodel RF
// these will be rotated to about the axis an angle of 0 and PI and we'll find the intersection of the
// two lines to find a point on the axis
if (pm->submodel[submodel_num].movement_axis == MOVEMENT_AXIS_X) {
axis = vmd_x_vector;
mpoint1 = &vmd_y_vector;
mpoint2 = &vmd_z_vector;
} else if (pm->submodel[submodel_num].movement_axis == MOVEMENT_AXIS_Y) {
mpoint1 = &vmd_x_vector;
axis = vmd_z_vector; // rotation about y is a change in heading (p,b,h), so we need z
mpoint2 = &vmd_z_vector;
} else if (pm->submodel[submodel_num].movement_axis == MOVEMENT_AXIS_Z) {
mpoint1 = &vmd_x_vector;
mpoint2 = &vmd_y_vector;
axis = vmd_y_vector; // rotation about z is a change in bank (p,b,h), so we need y
} else {
// must be one of these axes or submodel_rot_hit is incorrectly set
Int3();
}
// copy submodel angs
angles copy_angs = pm->submodel[submodel_num].angs;
// find two points rotated into model RF when angs set to 0
vm_vec_copy_scale((vector*)&pm->submodel[submodel_num].angs, &axis, 0.0f);
model_find_world_point(&p1, mpoint1, model_num, submodel_num, &vmd_identity_matrix, &vmd_zero_vector);
model_find_world_point(&p2, mpoint2, model_num, submodel_num, &vmd_identity_matrix, &vmd_zero_vector);
// find two points rotated into model RF when angs set to PI
vm_vec_copy_scale((vector*)&pm->submodel[submodel_num].angs, &axis, PI);
model_find_world_point(&v1, mpoint1, model_num, submodel_num, &vmd_identity_matrix, &vmd_zero_vector);
model_find_world_point(&v2, mpoint2, model_num, submodel_num, &vmd_identity_matrix, &vmd_zero_vector);
// reset submodel angs
pm->submodel[submodel_num].angs = copy_angs;
// find direction vectors of the two lines
vm_vec_sub2(&v1, &p1);
vm_vec_sub2(&v2, &p2);
// find the intersection of the two lines
float s, t;
fvi_two_lines_in_3space(&p1, &v1, &p2, &v2, &s, &t);
// find the actual intersection points
vm_vec_scale_add(&int1, &p1, &v1, s);
// set flag to init
sii->pt_on_axis = int1;
sii->axis_set = 1;
}
// Adds an electrical arcing effect to a submodel
void model_add_arc(int model_num, int sub_model_num, vector *v1, vector *v2, int arc_type )
{
polymodel * pm;
pm = model_get(model_num);
if ( sub_model_num == -1 ) {
sub_model_num = pm->detail[0];
}
Assert( sub_model_num >= 0 );
Assert( sub_model_num < pm->n_models );
if ( sub_model_num < 0 ) return;
if ( sub_model_num >= pm->n_models ) return;
bsp_info *sm = &pm->submodel[sub_model_num];
if ( sm->num_arcs < MAX_ARC_EFFECTS ) {
sm->arc_type[sm->num_arcs] = (ubyte)arc_type;
sm->arc_pts[sm->num_arcs][0] = *v1;
sm->arc_pts[sm->num_arcs][1] = *v2;
sm->num_arcs++;
}
}
// function to return an index into the docking_bays array which matches the criteria passed
// to this function. dock_type is one of the DOCK_TYPE_XXX defines in model.h
int model_find_dock_index(int modelnum, int dock_type)
{
int i;
polymodel *pm;
pm = model_get(modelnum);
// no docking points -- return -1
if ( pm->n_docks <= 0 )
return -1;
for (i = 0; i < pm->n_docks; i++ ) {
if ( dock_type & pm->docking_bays[i].type_flags )
return i;
}
return -1;
}
int model_get_dock_index_type(int modelnum, int index)
{
polymodel *pm = model_get(modelnum);
return pm->docking_bays[index].type_flags;
}
// get all the different docking point types on a model
int model_get_dock_types(int modelnum)
{
int i, type = 0;
polymodel *pm;
pm = model_get(modelnum);
for (i=0; i<pm->n_docks; i++)
type |= pm->docking_bays[i].type_flags;
return type;
}
// function to return an index into the docking_bays array which matches the string passed
// Fred uses strings to identify docking positions. This functin also accepts generic strings
// so that a desginer doesn't have to know exact names if building a mission from hand.
int model_find_dock_name_index( int modelnum, char *name )
{
int i;
polymodel *pm;
pm = model_get(modelnum);
if ( pm->n_docks <= 0 )
return -1;
// check the generic names and call previous function to find first dock point of
// the specified type
if ( !stricmp(name, "cargo") )
return model_find_dock_index( modelnum, DOCK_TYPE_CARGO );
else if (!stricmp( name, "rearm") )
return model_find_dock_index( modelnum, DOCK_TYPE_REARM );
else if (!stricmp( name, "generic") )
return model_find_dock_index( modelnum, DOCK_TYPE_GENERIC );
for (i = 0; i < pm->n_docks; i++ ) {
if ( !stricmp(pm->docking_bays[i].name, name) )
return i;
}
// if we get here, name wasn't found -- return -1 and hope for the best
return -1;
}
// returns the actual name of a docking point on a model, needed by Fred.
char *model_get_dock_name(int modelnum, int index)
{
polymodel *pm;
pm = model_get(modelnum);
Assert((index >= 0) && (index < pm->n_docks));
return pm->docking_bays[index].name;
}
int model_get_num_dock_points(int modelnum)
{
polymodel *pm;
pm = model_get(modelnum);
return pm->n_docks;
}
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