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/*
* PARSEC - Explosion Drawing Code
*
* $Author: uberlinuxguy $ - $Date: 2004/09/15 12:25:25 $
*
* Orginally written by:
* Copyright (c) Markus Hadwiger <msh@parsec.org> 1995-1999
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// C library
#include <math.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// compilation flags/debug support
#include "config.h"
#include "debug.h"
// general definitions
#include "general.h"
#include "objstruc.h"
// global externals
#include "globals.h"
// subsystem headers
#include "net_defs.h"
#include "vid_defs.h"
// drawing subsystem
#include "d_bmap.h"
#include "d_iter.h"
// mathematics header
#include "utl_math.h"
// model header
#include "utl_model.h"
// local module header
#include "g_explod.h"
// proprietary module headers
#include "con_aux.h"
#include "h_supp.h"
#include "obj_ctrl.h"
#include "part_api.h"
#include "part_def.h"
#include "part_sys.h"
#include "g_shkwav.h"
// constants ------------------------------------------------------------------
//
#define EXPLOSION_REFERENCE_Z 900.0
#define EXPLOSION_REFERENCE_Z_m 420.0
#define EXPLOSION_REFERENCE_Z_h 1380.0
#define EXPLOSION_REFERENCE_Z_v 1600.0
// draw explosion using custom draw particles ---------------------------------
//
PRIVATE
void DrawParticleBaseExplosion( const ShipObject *shippo )
{
if ( shippo->ExplosionCount == MAX_EXPLOSION_COUNT ) {
static int dfac_1 = RAND() % 7 + 3;
static int dfac_2 = RAND() % 7 + 3;
static int dfac_3 = RAND() % 7 + 3;
static int dfac_4 = RAND() % 7 + 3;
static int dfac_5 = RAND() % 7 + 3;
// alter basic attributes
float ref_z = 600;//400;//spreadfire_ref_z * 2;
int bitmap = iter_texrgba | iter_specularadd;
int color = 0;//SPREADFIRE_PARTICLE_COLOR;
int sizebound = PRT_NO_SIZEBOUND;
int lifetime = 1000; //shippo->SpreadLifeTime;
// fetch pdef
pdef_s *pdef = PDEF_explode1();
if ( pdef == NULL )
return;
// create pextinfo
pextinfo_s extinfo;
PRT_InitParticleExtInfo( &extinfo, pdef, NULL, NULL );
Vector3 dirvec;
fixed_t speed = 0;
DirVctMUL( shippo->ObjPosition, FIXED_TO_GEOMV( speed ), &dirvec );
Vertex3 object_space;
object_space.X = GEOMV_0;
object_space.Y = GEOMV_0;
object_space.Z = GEOMV_0;
Vertex3 world_space;
MtxVctMUL( shippo->ObjPosition, &object_space, &world_space );
dword owner = GetObjectOwner( shippo );
particle_s particle;
PRT_InitParticle( particle, bitmap, color, sizebound,
ref_z, &world_space, &dirvec,
lifetime, owner, &extinfo );
PRT_CreateCustomDrawParticle( particle, shippo );
//--
ref_z = 100;
object_space.X = INT_TO_GEOMV( 0 + dfac_1 );
object_space.Y = INT_TO_GEOMV( 30 - dfac_1 );
MtxVctMUL( shippo->ObjPosition, &object_space, &world_space );
PRT_InitParticle( particle, bitmap, color, sizebound,
ref_z, &world_space, &dirvec,
lifetime, owner, &extinfo );
PRT_CreateCustomDrawParticle( particle, shippo );
//--
ref_z = 80;
object_space.X = INT_TO_GEOMV( -20 + dfac_2 );
object_space.Y = INT_TO_GEOMV( 10 - dfac_2 );
MtxVctMUL( shippo->ObjPosition, &object_space, &world_space );
PRT_InitParticle( particle, bitmap, color, sizebound,
ref_z, &world_space, &dirvec,
lifetime, owner, &extinfo );
PRT_CreateCustomDrawParticle( particle, shippo );
//--
ref_z = 120;
object_space.X = INT_TO_GEOMV( 20 - dfac_3 );
object_space.Y = INT_TO_GEOMV( 0 + dfac_3 );
MtxVctMUL( shippo->ObjPosition, &object_space, &world_space );
PRT_InitParticle( particle, bitmap, color, sizebound,
ref_z, &world_space, &dirvec,
lifetime, owner, &extinfo );
PRT_CreateCustomDrawParticle( particle, shippo );
//--
ref_z = 30;
object_space.X = INT_TO_GEOMV( 30 - dfac_4 );
object_space.Y = INT_TO_GEOMV( -20 + dfac_4 );
MtxVctMUL( shippo->ObjPosition, &object_space, &world_space );
PRT_InitParticle( particle, bitmap, color, sizebound,
ref_z, &world_space, &dirvec,
lifetime, owner, &extinfo );
PRT_CreateCustomDrawParticle( particle, shippo );
//--
ref_z = 140;
object_space.X = INT_TO_GEOMV( 0 + dfac_5 );
object_space.Y = INT_TO_GEOMV( -30 + dfac_5 );
MtxVctMUL( shippo->ObjPosition, &object_space, &world_space );
PRT_InitParticle( particle, bitmap, color, sizebound,
ref_z, &world_space, &dirvec,
lifetime, owner, &extinfo );
PRT_CreateCustomDrawParticle( particle, shippo );
//--
} else {
// move particles along with the ship
if ( !AUX_DISABLE_DYING_SHIP_MOVEMENT ) {
Vector3 dirvec;
fixed_t speed = shippo->CurSpeed * CurScreenRefFrames;
DirVctMUL( shippo->ObjPosition, FIXED_TO_GEOMV( speed ), &dirvec );
PRT_TranslateCustomParticles( dirvec, shippo );
}
}
PRT_DrawCustomParticles( shippo );
}
// draw legacy explosion using bitmaps ----------------------------------------
//
PRIVATE
void DrawBitmapExplosion( const ShipObject *shippo )
{
float refz = EXPLOSION_REFERENCE_Z_h * Screen_Height / 760.0f; // FIXME
dword frameno = BM_EXPLANIMBASE + ( BM_NUMEXPLFRAMES-1 - shippo->ExplosionCount / EXPL_REF_SPEED );
Vertex3 shipt;
FetchTVector( shippo->CurrentXmatrx, &shipt );
SPoint shiploc;
PROJECT_TO_SCREEN( shipt, shiploc );
float scalefac = refz / GEOMV_TO_FLOAT( shipt.Z );
dword scalewidth = (dword) ( BitmapInfo[ frameno ].width * scalefac );
dword scaleheight = (dword) ( BitmapInfo[ frameno ].height * scalefac );
scalewidth &= ~1;
scaleheight &= ~1;
D_PutSTCBitmap( BitmapInfo[ frameno ].bitmappointer,
BitmapInfo[ frameno ].width,
BitmapInfo[ frameno ].height,
scalewidth, scaleheight,
shiploc.X - scalewidth/2,
shiploc.Y - scaleheight/2 );
// draw secondary explosion bitmaps
if ( !AUX_USE_SIMPLE_EXPLOSION ) {
static int dfac_1 = 1;
static int dfac_2 = 1;
static int dfac_3 = 1;
static int dfac_4 = 1;
static int dfac_5 = 1;
if ( shippo->ExplosionCount == MAX_EXPLOSION_COUNT ) {
dfac_1 = RAND() % 7 + 3;
dfac_2 = RAND() % 7 + 3;
dfac_3 = RAND() % 7 + 3;
dfac_4 = RAND() % 7 + 3;
dfac_5 = RAND() % 7 + 3;
}
dword _scalewidth = scalewidth / 2;
dword _scaleheight = scaleheight / 2;
if ( scalewidth > 0 && scaleheight > 0 )
D_PutSTCBitmap( BitmapInfo[ frameno ].bitmappointer,
BitmapInfo[ frameno ].width,
BitmapInfo[ frameno ].height,
_scalewidth, _scaleheight,
shiploc.X - _scalewidth/2 - _scalewidth/dfac_1,
shiploc.Y - _scaleheight/2 - _scaleheight/dfac_2 );
if ( scalewidth > 0 && scaleheight > 0 )
D_PutSTCBitmap( BitmapInfo[ frameno ].bitmappointer,
BitmapInfo[ frameno ].width,
BitmapInfo[ frameno ].height,
_scalewidth, _scaleheight,
shiploc.X - _scalewidth/2 + _scalewidth/dfac_3,
shiploc.Y - _scaleheight/2 + _scaleheight/dfac_4 );
_scalewidth = scalewidth / 3;
_scaleheight = scaleheight / 3;
if ( scalewidth > 0 && scaleheight > 0 )
D_PutSTCBitmap( BitmapInfo[ frameno ].bitmappointer,
BitmapInfo[ frameno ].width,
BitmapInfo[ frameno ].height,
_scalewidth, _scaleheight,
shiploc.X - _scalewidth/2 + _scalewidth/dfac_2,
shiploc.Y - _scaleheight/2 - _scaleheight/dfac_5 );
_scalewidth = scalewidth / 4;
_scaleheight = scaleheight / 4;
if ( scalewidth > 0 && scaleheight > 0 )
D_PutSTCBitmap( BitmapInfo[ frameno ].bitmappointer,
BitmapInfo[ frameno ].width,
BitmapInfo[ frameno ].height,
_scalewidth, _scaleheight,
shiploc.X - _scalewidth/2 + _scalewidth/dfac_3,
shiploc.Y - _scaleheight/2 + _scaleheight/dfac_1 );
_scalewidth = scalewidth / 5;
_scaleheight = scaleheight / 5;
if ( scalewidth > 0 && scaleheight > 0 )
D_PutSTCBitmap( BitmapInfo[ frameno ].bitmappointer,
BitmapInfo[ frameno ].width,
BitmapInfo[ frameno ].height,
_scalewidth, _scaleheight,
shiploc.X - _scalewidth/2 + _scalewidth/dfac_5,
shiploc.Y - _scaleheight/2 + _scaleheight/dfac_4 );
}
}
// draw single frame of explosion animation -----------------------------------
//
void DrawExpAnim( const ShipObject *shippo )
{
ASSERT( shippo != NULL );
// create shock wave if enabled (on first frame)
if ( AUX_EXPLOSION_DRAW_SHOCKWAVE ) {
ExplosionShockWave( shippo );
}
// draw explosion
if ( AUX_PARTICLE_BASE_EXPLOSION ) {
// anim frames are particles
DrawParticleBaseExplosion( shippo );
} else {
// anim frames are bitmaps
DrawBitmapExplosion( shippo );
}
}
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