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fs2open.github.com/code/hud/hudets.cpp
T
Goober5000 b52b6b1e00 spelling
2006-02-25 21:47:19 +00:00

1065 lines
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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/Hud/HUDets.cpp $
* $Revision: 2.20 $
* $Date: 2006-02-25 21:47:00 $
* $Author: Goober5000 $
*
* C file that contains code to manage and display the Energy Transfer System (ETS)
*
* $Log: not supported by cvs2svn $
* Revision 2.19 2006/01/09 04:54:51 phreak
* Remove tertiary weapons in their current form, I want something more flexable instead of what I had there.
*
* Revision 2.18 2005/11/21 02:43:30 Goober5000
* change from "setting" to "profile"; this way makes more sense
* --Goober5000
*
* Revision 2.17 2005/11/21 00:46:12 Goober5000
* add ai_settings.tbl
* --Goober5000
*
* Revision 2.16 2005/04/15 11:41:27 taylor
* stupid <expletive-delete> terminal, I <expletive-deleted> <expletive-deleted>!!!
*
* Revision 2.15 2005/04/15 11:36:54 taylor
* new GCC = new warning messages, yippeeee!!
*
* Revision 2.14 2005/03/27 12:28:33 Goober5000
* clarified max hull/shield strength names and added ship guardian thresholds
* --Goober5000
*
* Revision 2.13 2005/03/10 08:00:06 taylor
* change min/max to MIN/MAX to fix GCC problems
* add lab stuff to Makefile
* build unbreakage for everything that's not MSVC++ 6
* lots of warning fixes
* fix OpenGL rendering problem with ship insignias
* no Warnings() in non-debug mode for Linux (like Windows)
* some campaign savefile fixage to stop reverting everyones data
*
* Revision 2.12 2004/07/26 20:47:32 Kazan
* remove MCD complete
*
* Revision 2.11 2004/07/12 16:32:49 Kazan
* MCD - define _MCD_CHECK to use memory tracking
*
* Revision 2.10 2004/05/10 08:03:30 Goober5000
* fixored the handling of no lasers and no engines... the tests should check the ship,
* not the object
* --Goober5000
*
* Revision 2.9 2004/03/05 09:02:03 Goober5000
* Uber pass at reducing #includes
* --Goober5000
*
* Revision 2.8 2004/02/04 08:41:04 Goober5000
* made code more uniform and simplified some things,
* specifically shield percentage and quadrant stuff
* --Goober5000
*
* Revision 2.7 2003/12/16 21:01:54 phreak
* disabled tertiary weapons support pending a rewrite of critical code
*
* Revision 2.6 2003/09/13 06:02:05 Goober5000
* clean rollback of all of argv's stuff
* --Goober5000
*
* Revision 2.4 2003/08/06 17:50:01 phreak
* added code to take into account a tertiary reactor pod
*
* Revision 2.3 2003/04/29 01:03:23 Goober5000
* implemented the custom hitpoints mod
* --Goober5000
*
* Revision 2.2 2002/12/10 05:43:34 Goober5000
* Full-fledged ballistic primary support added! Try it and see! :)
*
* Revision 2.1 2002/08/01 01:41:05 penguin
* The big include file move
*
* Revision 2.0 2002/06/03 04:02:23 penguin
* Warpcore CVS sync
*
* Revision 1.1 2002/05/02 18:03:08 mharris
* Initial checkin - converted filenames and includes to lower case
*
*
* 14 10/28/99 11:17p Jefff
* nudged German "A" on ETS
*
* 13 10/26/99 11:02p Jefff
* changed german ets labels
*
* 12 9/05/99 11:23p Jimb
* changed weapon and shield recharge rates for skill levels
*
* 11 9/03/99 2:28p Mikek
* Slightly increase rate of weapon recharge at Medium and Hard. Slightly
* decrease at Easy.
*
* 10 8/01/99 12:39p Dave
* Added HUD contrast control key (for nebula).
*
* 9 6/10/99 3:43p Dave
* Do a better job of syncing text colors to HUD gauges.
*
* 8 2/23/99 8:11p Dave
* Tidied up dogfight mode. Fixed TvT ship type problems for alpha wing.
* Small pass over todolist items.
*
* 7 1/07/99 9:06a Jasen
* coords updated
*
* 6 12/28/98 3:17p Dave
* Support for multiple hud bitmap filenames for hi-res mode.
*
* 5 12/21/98 5:02p Dave
* Modified all hud elements to be multi-resolution friendly.
*
* 4 11/05/98 4:18p Dave
* First run nebula support. Beefed up localization a bit. Removed all
* conditional compiles for foreign versions. Modified mission file
* format.
*
* 3 10/13/98 9:28a Dave
* Started neatening up freespace.h. Many variables renamed and
* reorganized. Added AlphaColors.[h,cpp]
*
* 2 10/07/98 10:53a Dave
* Initial checkin.
*
* 1 10/07/98 10:49a Dave
*
* 60 8/28/98 3:28p Dave
* EMP effect done. AI effects may need some tweaking as required.
*
* 59 8/25/98 1:48p Dave
* First rev of EMP effect. Player side stuff basically done. Next comes
* AI code.
*
* 58 6/19/98 3:49p Lawrance
* localization tweaks
*
* 57 4/07/98 1:53p Lawrance
* Make energy system matter more.
*
* 56 3/26/98 5:26p John
* added new paging code. nonfunctional.
*
* 55 2/23/98 6:49p Lawrance
* Use gr_aabitmap_ex() instead of clipping regions
*
* 54 2/22/98 4:17p John
* More string externalization classification... 190 left to go!
*
* 53 2/12/98 4:58p Lawrance
* Change to new flashing method.
*
* 52 1/19/98 11:37p Lawrance
* Fixing Optimization build warnings
*
* 51 1/05/98 9:38p Lawrance
* Implement flashing HUD gauges.
*
* 50 1/02/98 9:10p Lawrance
* Big changes to how colors get set on the HUD.
*
* 49 12/30/97 4:28p Lawrance
* remove .ani extensions from filenames
*
* 48 12/01/97 12:27a Lawrance
* redo default alpha color for HUD, make it easy to modify in the future
*
* 47 11/15/97 6:10p Lawrance
* make ship speed less dependant on engine damage
*
* 46 11/11/97 12:58a Lawrance
* deal with situation where ship has no shields
*
* 45 11/10/97 2:58p Lawrance
* fix bug that was preventing engine damage from affecting AI ships
*
* 44 11/09/97 3:25p Lawrance
* increase default alpha color
*
* 43 11/06/97 10:32a Lawrance
* brighten up energy management bars
*
* 42 11/05/97 11:19p Lawrance
* implement new ETS gauge
*
* 41 11/05/97 4:04p Lawrance
* engine speed not affected on Trainee ONLY for player ship
*
* 40 10/28/97 3:35p Lawrance
* subsystems will not be affected when playing on lowest skill level
*
* $NoKeywords: $
*/
#include "hud/hudets.h"
#include "hud/hud.h"
#include "ship/ship.h"
#include "freespace2/freespace.h"
#include "io/timer.h"
#include "gamesnd/gamesnd.h"
#include "weapon/emp.h"
#include "localization/localize.h"
#include "weapon/weapon.h"
#include "globalincs/systemvars.h"
#include "object/object.h"
#define ENERGY_DIVERT_DELTA 0.2f // percentage of energy transferred in a shield->weapon or weapon->shield energy transfer
#define INTIAL_SHIELD_RECHARGE_INDEX 4 // default shield charge rate (index in Energy_levels[])
#define INTIAL_WEAPON_RECHARGE_INDEX 4 // default weapon charge rate (index in Energy_levels[])
#define INTIAL_ENGINE_RECHARGE_INDEX 4 // default engine charge rate (index in Energy_levels[])
#define MAX_SHIELD_REGEN_PER_SECOND 0.02f // max percent/100 of shield energy regenerated per second
#define MAX_WEAPON_REGEN_PER_SECOND 0.04f // max percent/100 of weapon energy regenerated per second
#define NUM_ENERGY_LEVELS 13
#define MAX_ENERGY_INDEX (NUM_ENERGY_LEVELS - 1)
float Energy_levels[NUM_ENERGY_LEVELS] = {0.0f, 0.0833f, 0.167f, 0.25f, 0.333f, 0.417f, 0.5f, 0.583f, 0.667f, 0.75f, 0.833f, 0.9167f, 1.0f};
#define AI_MODIFY_ETS_INTERVAL 500 // time between ets modifications for ai's (in milliseconds)
int Weapon_energy_cheat = 0;
#define ZERO_INDEX 0
#define ONE_THIRD_INDEX 4
#define ONE_HALF_INDEX 6
#define ALL_INDEX 12
#define HAS_ENGINES (1<<0)
#define HAS_SHIELDS (1<<1)
#define HAS_WEAPONS (1<<2)
int ETS_bar_h[GR_NUM_RESOLUTIONS] = {
41,
41
};
typedef struct ets_gauge_info
{
char letter;
int letter_coords[2];
int top_coords[2];
int bottom_coords[2];
} ets_gauge_info;
ets_gauge_info Ets_gauge_info_german[GR_NUM_RESOLUTIONS][3] =
{
{ // GR_640
{ 'G', {525,422}, {523,380}, {523,430}, },
{ 'S', {542,422}, {540,380}, {540,430}, },
{ 'A', {559,422}, {557,380}, {557,430} }
},
{ // GR_1024
{ 'G', {882,690}, {880,648}, {880,698}, },
{ 'S', {900,690}, {898,648}, {898,698}, },
{ 'A', {917,690}, {916,648}, {916,698} }
}
};
ets_gauge_info Ets_gauge_info_french[GR_NUM_RESOLUTIONS][3] =
{
{ // GR_640
{ 'C', {525,422}, {523,380}, {523,430}, },
{ 'B', {542,422}, {540,380}, {540,430}, },
{ 'M', {560,422}, {557,380}, {557,430} }
},
{ // GR_1024
{ 'C', {882,690}, {880,648}, {880,698}, },
{ 'B', {900,690}, {898,648}, {898,698}, },
{ 'M', {918,690}, {916,648}, {916,698} }
},
};
ets_gauge_info Ets_gauge_info_english[GR_NUM_RESOLUTIONS][3] =
{
{ // GR_640
{ 'G', {525,422}, {523,380}, {523,430}, },
{ 'S', {542,422}, {540,380}, {540,430}, },
{ 'E', {560,422}, {557,380}, {557,430} }
},
{ // GR_1024
{ 'G', {882,690}, {880,648}, {880,698}, },
{ 'S', {900,690}, {898,648}, {898,698}, },
{ 'E', {918,690}, {916,648}, {916,698} }
}
};
ets_gauge_info *Ets_gauge_info = NULL;
char Ets_fname[GR_NUM_RESOLUTIONS][MAX_FILENAME_LEN] = {
"energy1",
"energy1"
};
hud_frames Ets_gauge;
static int Hud_ets_inited = 0;
void hud_init_ets()
{
if ( Hud_ets_inited )
return;
Ets_gauge.first_frame = bm_load_animation(Ets_fname[gr_screen.res], &Ets_gauge.num_frames);
if ( Ets_gauge.first_frame < 0 ) {
Warning(LOCATION,"Cannot load hud ani: Ets_fname[gr_screen.res]\n");
}
if(Lcl_gr){
Ets_gauge_info = Ets_gauge_info_german[gr_screen.res];
} else if(Lcl_fr){
Ets_gauge_info = Ets_gauge_info_french[gr_screen.res];
} else {
Ets_gauge_info = Ets_gauge_info_english[gr_screen.res];
}
Hud_ets_inited = 1;
}
// -------------------------------------------------------------------------------------------------
// ets_init_ship() is called by a ship when it is created (effectively, for every ship at the start
// of a mission). This will set the default charge rates for the different systems and initialize
// the weapon energy reserve.
//
void ets_init_ship(object* obj)
{
ship* sp;
// fred should bail here
if(Fred_running){
return;
}
Assert(obj->type == OBJ_SHIP);
sp = &Ships[obj->instance];
sp->weapon_energy = Ship_info[sp->ship_info_index].max_weapon_reserve;
sp->next_manage_ets = timestamp(AI_MODIFY_ETS_INTERVAL);
set_default_recharge_rates(obj);
}
// -------------------------------------------------------------------------------------------------
// update_ets() is called once per frame for every OBJ_SHIP in the game. The amount of energy
// to send to the weapons and shields is calculated, and the top ship speed is calculated. The
// amount of time elapsed from the previous call is passed in as the parameter fl_frametime.
//
// parameters: obj ==> object that is updating their energy system
// fl_frametime ==> game frametime (in seconds)
//
void update_ets(object* objp, float fl_frametime)
{
float max_new_shield_energy, max_new_weapon_energy, _ss;
if ( fl_frametime <= 0 ){
return;
}
ship* ship_p = &Ships[objp->instance];
ship_info* sinfo_p = &Ship_info[ship_p->ship_info_index];
float max_g=sinfo_p->max_weapon_reserve,
max_s=ship_p->ship_max_shield_strength;
if ( ship_p->flags & SF_DYING ){
return;
}
if ( sinfo_p->power_output == 0 ){
return;
}
// new_energy = fl_frametime * sinfo_p->power_output;
// update weapon energy
max_new_weapon_energy = fl_frametime * MAX_WEAPON_REGEN_PER_SECOND * max_g;
if ( objp->flags & OF_PLAYER_SHIP ) {
ship_p->weapon_energy += Energy_levels[ship_p->weapon_recharge_index] * max_new_weapon_energy * The_mission.ai_profile->weapon_energy_scale[Game_skill_level];
} else {
ship_p->weapon_energy += Energy_levels[ship_p->weapon_recharge_index] * max_new_weapon_energy;
}
if ( ship_p->weapon_energy > sinfo_p->max_weapon_reserve ){
ship_p->weapon_energy = sinfo_p->max_weapon_reserve;
}
float shield_delta;
max_new_shield_energy = fl_frametime * MAX_SHIELD_REGEN_PER_SECOND * max_s;
if ( objp->flags & OF_PLAYER_SHIP ) {
shield_delta = Energy_levels[ship_p->shield_recharge_index] * max_new_shield_energy * The_mission.ai_profile->shield_energy_scale[Game_skill_level];
} else {
shield_delta = Energy_levels[ship_p->shield_recharge_index] * max_new_shield_energy;
}
add_shield_strength(objp, shield_delta);
if ( (_ss = get_shield_strength(objp)) > ship_p->ship_max_shield_strength ){
for (int i=0; i<MAX_SHIELD_SECTIONS; i++){
objp->shield_quadrant[i] *= ship_p->ship_max_shield_strength / _ss;
}
}
// calculate the top speed of the ship based on the energy flow to engines
float y = Energy_levels[ship_p->engine_recharge_index];
// check for a shortcuts first before doing linear interpolation
if ( y == Energy_levels[INTIAL_ENGINE_RECHARGE_INDEX] ){
ship_p->current_max_speed = sinfo_p->max_speed;
} else if ( y == 0.0f ){
ship_p->current_max_speed = 0.5f * sinfo_p->max_speed;
} else if ( y == 1.0f ){
ship_p->current_max_speed = sinfo_p->max_overclocked_speed;
} else {
// do a linear interpolation to find the current max speed, using points (0,1/2 default_max_speed) (.333,default_max_speed)
// x = x1 + (y-y1) * (x2-x1) / (y2-y1);
if ( y < Energy_levels[INTIAL_ENGINE_RECHARGE_INDEX] ){
ship_p->current_max_speed = 0.5f*sinfo_p->max_speed + (y * (0.5f*sinfo_p->max_speed) ) / Energy_levels[INTIAL_ENGINE_RECHARGE_INDEX];
} else {
// do a linear interpolation to find the current max speed, using points (.333,default_max_speed) (1,max_overclock_speed)
ship_p->current_max_speed = sinfo_p->max_speed + (y - Energy_levels[INTIAL_ENGINE_RECHARGE_INDEX]) * (sinfo_p->max_overclocked_speed - sinfo_p->max_speed) / (1.0f - Energy_levels[INTIAL_ENGINE_RECHARGE_INDEX]);
}
}
// AL 11-15-97: Rules for engine strength affecting max speed:
// 1. if strength >= 0.5 no affect
// 2. if strength < 0.5 then max_speed = sqrt(strength)
//
// This will translate to 71% max speed at 50% engines, and 31% max speed at 10% engines
//
float strength = ship_get_subsystem_strength(ship_p, SUBSYSTEM_ENGINE);
// don't let engine strength affect max speed when playing on lowest skill level
if ( (objp != Player_obj) || (Game_skill_level > 0) ) {
if ( strength < 0.5 ) {
ship_p->current_max_speed *= fl_sqrt(strength);
}
}
if ( timestamp_elapsed(ship_p->next_manage_ets) ) {
if ( !(objp->flags & OF_PLAYER_SHIP) ) {
ai_manage_ets(objp);
ship_p->next_manage_ets = timestamp(AI_MODIFY_ETS_INTERVAL);
}
else {
if ( Weapon_energy_cheat ){
ship_p->weapon_energy = sinfo_p->max_weapon_reserve;
}
}
}
}
// -------------------------------------------------------------------------------------------------
// ai_manage_ets() will determine if a ship should modify it's energy transfer percentages, or
// transfer energy from shields->weapons or from weapons->shields
//
// minimum level rule constants
#define SHIELDS_MIN_LEVEL_PERCENT 0.3f
#define WEAPONS_MIN_LEVEL_PERCENT 0.3f
// maximum level rule constants
#define SHIELDS_MAX_LEVEL_PERCENT 0.8f
#define WEAPONS_MAX_LEVEL_PERCENT 0.8f
// emergency rule constants
#define SHIELDS_EMERG_LEVEL_PERCENT 0.10f
#define WEAPONS_EMERG_LEVEL_PERCENT 0.05f
// need this, or ai's tend to totally eliminate engine power!
#define MIN_ENGINE_RECHARGE_INDEX 3
#define DEFAULT_CHARGE_INDEX 4
#define NORMAL_TOLERANCE_PERCENT .10f
void ai_manage_ets(object* obj)
{
ship* ship_p = &Ships[obj->instance];
ship_info* ship_info_p = &Ship_info[ship_p->ship_info_index];
if ( ship_info_p->power_output == 0 )
return;
if (ship_p->flags & SF_DYING)
return;
// check if any of the three systems are not being used. If so, don't allow energy management.
if ( !ship_p->ship_max_shield_strength || !ship_info_p->max_speed || !ship_info_p->max_weapon_reserve)
return;
float shield_left_percent = get_shield_pct(obj);
float weapon_left_percent = ship_p->weapon_energy/ship_info_p->max_weapon_reserve;
// maximum level check
// MK, changed these, might as well let them go up to 100% if nothing else needs the recharge ability.
if ( weapon_left_percent == 1.0f) {
decrease_recharge_rate(obj, WEAPONS);
}
if (!(obj->flags & OF_NO_SHIELDS) && (shield_left_percent == 1.0f)) {
decrease_recharge_rate(obj, SHIELDS);
}
// minimum check
if (!(obj->flags & OF_NO_SHIELDS) && (shield_left_percent < SHIELDS_MIN_LEVEL_PERCENT)) {
if ( weapon_left_percent > WEAPONS_MIN_LEVEL_PERCENT )
increase_recharge_rate(obj, SHIELDS);
}
if ( weapon_left_percent < WEAPONS_MIN_LEVEL_PERCENT ) {
increase_recharge_rate(obj, WEAPONS);
}
if ( ship_p->engine_recharge_index < MIN_ENGINE_RECHARGE_INDEX ) {
increase_recharge_rate(obj, ENGINES);
}
// emergency check
if (!(obj->flags & OF_NO_SHIELDS)) {
if ( shield_left_percent < SHIELDS_EMERG_LEVEL_PERCENT ) {
if (ship_p->target_shields_delta == 0.0f)
transfer_energy_to_shields(obj);
} else if ( weapon_left_percent < WEAPONS_EMERG_LEVEL_PERCENT ) {
if ( shield_left_percent > SHIELDS_MIN_LEVEL_PERCENT || weapon_left_percent <= 0.01 ) // dampen ai enthusiasm for sucking energy to weapons
transfer_energy_to_weapons(obj);
}
// check for return to normal values
if ( fl_abs( shield_left_percent - 0.5f ) < NORMAL_TOLERANCE_PERCENT ) {
if ( ship_p->shield_recharge_index > DEFAULT_CHARGE_INDEX )
decrease_recharge_rate(obj, SHIELDS);
else if ( ship_p->shield_recharge_index < DEFAULT_CHARGE_INDEX )
increase_recharge_rate(obj, SHIELDS);
}
}
if ( fl_abs( weapon_left_percent - 0.5f ) < NORMAL_TOLERANCE_PERCENT ) {
if ( ship_p->weapon_recharge_index > DEFAULT_CHARGE_INDEX )
decrease_recharge_rate(obj, WEAPONS);
else if ( ship_p->weapon_recharge_index < DEFAULT_CHARGE_INDEX )
increase_recharge_rate(obj, WEAPONS);
}
}
// -------------------------------------------------------------------------------------------------
// hud_show_ets() will display the charge rates for the three systems, and the reserve
// energy for shields and weapons. hud_show_ets() is called once per frame.
//
void hud_show_ets()
{
int i, j, index, y_start, y_end, clip_h, w, h, x, y;
ship* ship_p = &Ships[Player_obj->instance];
if ( Ets_gauge.first_frame < 0 ) {
return;
}
// if at least two gauges are not shown, don't show any
i = 0;
if (!ship_has_energy_weapons(ship_p)) i++;
if (Player_obj->flags & OF_NO_SHIELDS) i++;
if (!ship_has_engine_power(ship_p)) i++;
if (i >= 2) return;
hud_set_gauge_color(HUD_ETS_GAUGE);
// draw the letters for the gauges first, before any clipping occurs
i = 0;
for ( j = 0; j < 3; j++ )
{
if (j == 0 && !ship_has_energy_weapons(ship_p))
{
continue;
}
if (j == 1 && Player_obj->flags & OF_NO_SHIELDS)
{
continue;
}
if (j == 2 && !ship_has_engine_power(ship_p))
{
continue;
}
Assert(Ets_gauge_info != NULL);
gr_printf(Ets_gauge_info[i].letter_coords[0], Ets_gauge_info[i].letter_coords[1], NOX("%c"), Ets_gauge_info[j].letter);
i++;
}
// draw the three energy gauges
i = 0;
index = 0;
for ( j = 0; j < 3; j++ ) {
switch (j) {
case 0:
index = ship_p->weapon_recharge_index;
if ( !ship_has_energy_weapons(ship_p) )
{
continue;
}
break;
case 1:
index = ship_p->shield_recharge_index;
if ( Player_obj->flags & OF_NO_SHIELDS )
{
continue;
}
break;
case 2:
index = ship_p->engine_recharge_index;
if ( !ship_has_engine_power(ship_p) )
{
continue;
}
break;
}
clip_h = fl2i( (1 - Energy_levels[index]) * ETS_bar_h[gr_screen.res] );
bm_get_info(Ets_gauge.first_frame,&w,&h);
if ( index < NUM_ENERGY_LEVELS-1 ) {
// some portion of dark needs to be drawn
hud_set_gauge_color(HUD_ETS_GAUGE);
// draw the top portion
Assert(Ets_gauge_info != NULL);
x = Ets_gauge_info[i].top_coords[0];
y = Ets_gauge_info[i].top_coords[1];
GR_AABITMAP_EX(Ets_gauge.first_frame,x,y,w,clip_h,0,0);
// draw the bottom portion
Assert(Ets_gauge_info != NULL);
x = Ets_gauge_info[i].bottom_coords[0];
y = Ets_gauge_info[i].bottom_coords[1];
y_start = y + (ETS_bar_h[gr_screen.res] - clip_h);
y_end = y + ETS_bar_h[gr_screen.res];
GR_AABITMAP_EX(Ets_gauge.first_frame, x, y_start, w, y_end-y_start, 0, ETS_bar_h[gr_screen.res]-clip_h);
}
if ( index > 0 ) {
if ( hud_gauge_maybe_flash(HUD_ETS_GAUGE) == 1 ) {
hud_set_gauge_color(HUD_ETS_GAUGE, HUD_C_DIM);
// hud_set_dim_color();
} else {
hud_set_gauge_color(HUD_ETS_GAUGE, HUD_C_BRIGHT);
// hud_set_bright_color();
}
// some portion of recharge needs to be drawn
// draw the top portion
Assert(Ets_gauge_info != NULL);
x = Ets_gauge_info[i].top_coords[0];
y = Ets_gauge_info[i].top_coords[1];
y_start = y + clip_h;
y_end = y + ETS_bar_h[gr_screen.res];
GR_AABITMAP_EX(Ets_gauge.first_frame+1, x, y_start, w, y_end-y_start, 0, clip_h);
// draw the bottom portion
Assert(Ets_gauge_info != NULL);
x = Ets_gauge_info[i].bottom_coords[0];
y = Ets_gauge_info[i].bottom_coords[1];
GR_AABITMAP_EX(Ets_gauge.first_frame+2, x,y,w,ETS_bar_h[gr_screen.res]-clip_h,0,0);
}
i++;
}
// hud_set_default_color();
}
// -------------------------------------------------------------------------------------------------
// set_default_recharge_rates() will set the charge levels for the weapons, shields and
// engines to their default levels
void set_default_recharge_rates(object* obj)
{
int ship_properties;
ship* ship_p = &Ships[obj->instance];
ship_info* ship_info_p = &Ship_info[ship_p->ship_info_index];
if ( ship_info_p->power_output == 0 )
return;
ship_properties = 0;
if (ship_has_energy_weapons(ship_p))
ship_properties |= HAS_WEAPONS;
if (!(obj->flags & OF_NO_SHIELDS))
ship_properties |= HAS_SHIELDS;
if (ship_has_engine_power(ship_p))
ship_properties |= HAS_ENGINES;
// the default charge rate depends on what systems are on each ship
switch ( ship_properties ) {
case HAS_ENGINES | HAS_WEAPONS | HAS_SHIELDS:
ship_p->shield_recharge_index = INTIAL_SHIELD_RECHARGE_INDEX;
ship_p->weapon_recharge_index = INTIAL_WEAPON_RECHARGE_INDEX;
ship_p->engine_recharge_index = INTIAL_ENGINE_RECHARGE_INDEX;
break;
case HAS_ENGINES | HAS_SHIELDS:
ship_p->shield_recharge_index = ONE_HALF_INDEX;
ship_p->weapon_recharge_index = ZERO_INDEX;
ship_p->engine_recharge_index = ONE_HALF_INDEX;
break;
case HAS_WEAPONS | HAS_SHIELDS:
ship_p->shield_recharge_index = ONE_HALF_INDEX;
ship_p->weapon_recharge_index = ONE_HALF_INDEX;
ship_p->engine_recharge_index = ZERO_INDEX;
break;
case HAS_ENGINES | HAS_WEAPONS:
ship_p->shield_recharge_index = ZERO_INDEX;
ship_p->weapon_recharge_index = ONE_HALF_INDEX;
ship_p->engine_recharge_index = ONE_HALF_INDEX;
break;
case HAS_SHIELDS:
ship_p->shield_recharge_index = ALL_INDEX;
ship_p->weapon_recharge_index = ZERO_INDEX;
ship_p->engine_recharge_index = ZERO_INDEX;
break;
case HAS_ENGINES:
ship_p->shield_recharge_index = ZERO_INDEX;
ship_p->weapon_recharge_index = ZERO_INDEX;
ship_p->engine_recharge_index = ALL_INDEX;
break;
case HAS_WEAPONS:
ship_p->shield_recharge_index = ZERO_INDEX;
ship_p->weapon_recharge_index = ALL_INDEX;
ship_p->engine_recharge_index = ZERO_INDEX;
break;
default:
Int3(); // if no systems, power output should be zero, and this funtion shouldn't be called
break;
} // end switch
}
// -------------------------------------------------------------------------------------------------
// increase_recharge_rate() will increase the energy flow to the specified system (one of
// WEAPONS, SHIELDS or ENGINES). The increase in energy will result in a decrease to
// the other two systems.
void increase_recharge_rate(object* obj, SYSTEM_TYPE ship_system)
{
int *gain_index=NULL, *lose_index1=NULL, *lose_index2=NULL, *tmp=NULL;
int count=0;
ship *ship_p = &Ships[obj->instance];
switch ( ship_system ) {
case WEAPONS:
if ( !ship_has_energy_weapons(ship_p) )
return;
gain_index = &ship_p->weapon_recharge_index;
if ( obj->flags & OF_NO_SHIELDS )
lose_index1 = NULL;
else
lose_index1 = &ship_p->shield_recharge_index;
if ( !ship_has_engine_power(ship_p) )
lose_index2 = NULL;
else
lose_index2 = &ship_p->engine_recharge_index;
break;
case SHIELDS:
if ( obj->flags & OF_NO_SHIELDS )
return;
gain_index = &ship_p->shield_recharge_index;
if ( !ship_has_energy_weapons(ship_p) )
lose_index1 = NULL;
else
lose_index1 = &ship_p->weapon_recharge_index;
if ( !ship_has_engine_power(ship_p) )
lose_index2 = NULL;
else
lose_index2 = &ship_p->engine_recharge_index;
break;
case ENGINES:
if ( !ship_has_engine_power(ship_p) )
return;
gain_index = &ship_p->engine_recharge_index;
if ( !ship_has_energy_weapons(ship_p) )
lose_index1 = NULL;
else
lose_index1 = &ship_p->weapon_recharge_index;
if ( obj->flags & OF_NO_SHIELDS )
lose_index2 = NULL;
else
lose_index2 = &ship_p->shield_recharge_index;
break;
} // end switch
// return if we can't transfer energy
if (!lose_index1 && !lose_index2)
return;
// already full, nothing to do
count = MAX_ENERGY_INDEX - *gain_index;
if ( count > 2 )
count = 2;
if ( count <= 0 )
{
if ( obj == Player_obj )
{
snd_play( &Snds[SND_ENERGY_TRANS_FAIL], 0.0f );
}
return;
}
*gain_index += count;
// ensure that the highest lose index takes the first decrease
if ( lose_index1 && lose_index2 ) {
if ( *lose_index1 < *lose_index2 ) {
tmp = lose_index1;
lose_index1 = lose_index2;
lose_index2 = tmp;
}
}
int sanity = 0;
while(count > 0) {
if ( lose_index1 && *lose_index1 > 0 ) {
*lose_index1 -= 1;
count--;
}
if ( count <= 0 )
break;
if ( lose_index2 && *lose_index2 > 0 ) {
*lose_index2 -= 1;
count--;
}
if ( sanity++ > 10 ) {
Int3(); // get Alan
break;
}
}
if ( obj == Player_obj )
snd_play( &Snds[SND_ENERGY_TRANS], 0.0f );
}
// -------------------------------------------------------------------------------------------------
// decrease_recharge_rate() will decrease the energy flow to the specified system (one of
// WEAPONS, SHIELDS or ENGINES). The decrease in energy will result in an increase to
// the other two systems.
void decrease_recharge_rate(object* obj, SYSTEM_TYPE ship_system)
{
int *lose_index=NULL, *gain_index1=NULL, *gain_index2=NULL, *tmp=NULL;
int count;
ship *ship_p = &Ships[obj->instance];
switch ( ship_system ) {
case WEAPONS:
if ( !ship_has_energy_weapons(ship_p) )
return;
lose_index = &ship_p->weapon_recharge_index;
if ( obj->flags & OF_NO_SHIELDS )
gain_index1 = NULL;
else
gain_index1 = &ship_p->shield_recharge_index;
if ( !ship_has_engine_power(ship_p) )
gain_index2 = NULL;
else
gain_index2 = &ship_p->engine_recharge_index;
break;
case SHIELDS:
if ( obj->flags & OF_NO_SHIELDS )
return;
lose_index = &ship_p->shield_recharge_index;
if ( !ship_has_energy_weapons(ship_p) )
gain_index1 = NULL;
else
gain_index1 = &ship_p->weapon_recharge_index;
if ( !ship_has_engine_power(ship_p) )
gain_index2 = NULL;
else
gain_index2 = &ship_p->engine_recharge_index;
break;
case ENGINES:
if ( !ship_has_engine_power(ship_p) )
return;
lose_index = &ship_p->engine_recharge_index;
if ( !ship_has_energy_weapons(ship_p) )
gain_index1 = NULL;
else
gain_index1 = &ship_p->weapon_recharge_index;
if ( obj->flags & OF_NO_SHIELDS )
gain_index2 = NULL;
else
gain_index2 = &ship_p->shield_recharge_index;
break;
} // end switch
// return if we can't transfer energy
if (!gain_index1 && !gain_index2)
return;
// check how much there is to lose
count = MIN(2, *lose_index);
if ( count <= 0 ) {
if ( obj == Player_obj ) {
snd_play( &Snds[SND_ENERGY_TRANS_FAIL], 0.0f );
}
return;
}
*lose_index -= count;
// make sure that the gain starts with the system which needs it most
if ( gain_index1 && gain_index2 ) {
if ( *gain_index1 > *gain_index2 ) {
tmp = gain_index1;
gain_index1 = gain_index2;
gain_index2 = tmp;
}
}
int sanity=0;
while(count > 0) {
if ( gain_index1 && *gain_index1 < MAX_ENERGY_INDEX ) {
*gain_index1 += 1;
count--;
}
if ( count <= 0 )
break;
if ( gain_index2 && *gain_index2 < MAX_ENERGY_INDEX ) {
*gain_index2 += 1;
count--;
}
if ( sanity++ > 10 ) {
Int3(); // get Alan
break;
}
}
if ( obj == Player_obj )
snd_play( &Snds[SND_ENERGY_TRANS], 0.0f );
}
void transfer_energy_weapon_common(object *objp, float from_field, float to_field, float *from_delta, float *to_delta, float max, float scale)
{
float delta;
delta = from_field * ENERGY_DIVERT_DELTA * scale;
if (to_field + *to_delta + delta > max)
delta = max - to_field - *to_delta;
if ( delta > 0 ) {
if ( objp == Player_obj )
snd_play( &Snds[SND_ENERGY_TRANS], 0.0f );
if (delta > from_field)
delta = from_field;
*to_delta += delta;
*from_delta -= delta;
} else
if ( objp == Player_obj )
snd_play( &Snds[SND_ENERGY_TRANS_FAIL], 0.0f );
}
// -------------------------------------------------------------------------------------------------
// transfer_energy_to_shields() will transfer ENERGY_DIVERT_DELTA percent of weapon energy
// to shield energy.
void transfer_energy_to_shields(object* obj)
{
ship* ship_p = &Ships[obj->instance];
if (ship_p->flags & SF_DYING)
return;
if ( !ship_has_energy_weapons(ship_p) || obj->flags & OF_NO_SHIELDS )
{
return;
}
transfer_energy_weapon_common(obj, ship_p->weapon_energy, get_shield_strength(obj), &ship_p->target_weapon_energy_delta, &ship_p->target_shields_delta, ship_p->ship_max_shield_strength, 0.5f);
}
// -------------------------------------------------------------------------------------------------
// transfer_energy_to_weapons() will transfer ENERGY_DIVERT_DELTA percent of shield energy
// to weapon energy.
void transfer_energy_to_weapons(object* obj)
{
ship* ship_p = &Ships[obj->instance];
ship_info* sinfo_p = &Ship_info[ship_p->ship_info_index];
if (ship_p->flags & SF_DYING)
return;
if ( !ship_has_energy_weapons(ship_p) || obj->flags & OF_NO_SHIELDS )
{
return;
}
transfer_energy_weapon_common(obj, get_shield_strength(obj), ship_p->weapon_energy, &ship_p->target_shields_delta, &ship_p->target_weapon_energy_delta, sinfo_p->max_weapon_reserve, 1.0f);
}
void hudets_page_in()
{
bm_page_in_aabitmap( Ets_gauge.first_frame, Ets_gauge.num_frames );
}
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