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-rw-r--r--apps/plugins/sdl/progs/quake/r_part.c801
1 files changed, 801 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/r_part.c b/apps/plugins/sdl/progs/quake/r_part.c
new file mode 100644
index 0000000..155af74
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/r_part.c
@@ -0,0 +1,801 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+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.
+
+*/
+
+#include "quakedef.h"
+#include "r_local.h"
+
+#define MAX_PARTICLES 2048 // default max # of particles at one
+ // time
+#define ABSOLUTE_MIN_PARTICLES 512 // no fewer than this no matter what's
+ // on the command line
+
+int ramp1[8] = {0x6f, 0x6d, 0x6b, 0x69, 0x67, 0x65, 0x63, 0x61};
+int ramp2[8] = {0x6f, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x68, 0x66};
+int ramp3[8] = {0x6d, 0x6b, 6, 5, 4, 3};
+
+particle_t *active_particles, *free_particles;
+
+particle_t *particles;
+int r_numparticles;
+
+vec3_t r_pright, r_pup, r_ppn;
+
+
+/*
+===============
+R_InitParticles
+===============
+*/
+void R_InitParticles (void)
+{
+ int i;
+
+ i = COM_CheckParm ("-particles");
+
+ if (i)
+ {
+ r_numparticles = (int)(Q_atoi(com_argv[i+1]));
+ if (r_numparticles < ABSOLUTE_MIN_PARTICLES)
+ r_numparticles = ABSOLUTE_MIN_PARTICLES;
+ }
+ else
+ {
+ r_numparticles = MAX_PARTICLES;
+ }
+
+ particles = (particle_t *)
+ Hunk_AllocName (r_numparticles * sizeof(particle_t), "particles");
+}
+
+#ifdef QUAKE2
+void R_DarkFieldParticles (entity_t *ent)
+{
+ int i, j, k;
+ particle_t *p;
+ float vel;
+ vec3_t dir;
+ vec3_t org;
+
+ org[0] = ent->origin[0];
+ org[1] = ent->origin[1];
+ org[2] = ent->origin[2];
+ for (i=-16 ; i<16 ; i+=8)
+ for (j=-16 ; j<16 ; j+=8)
+ for (k=0 ; k<32 ; k+=8)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 0.2 + (rand()&7) * 0.02;
+ p->color = 150 + rand()%6;
+ p->type = pt_slowgrav;
+
+ dir[0] = j*8;
+ dir[1] = i*8;
+ dir[2] = k*8;
+
+ p->org[0] = org[0] + i + (rand()&3);
+ p->org[1] = org[1] + j + (rand()&3);
+ p->org[2] = org[2] + k + (rand()&3);
+
+ VectorNormalize (dir);
+ vel = 50 + (rand()&63);
+ VectorScale (dir, vel, p->vel);
+ }
+}
+#endif
+
+
+/*
+===============
+R_EntityParticles
+===============
+*/
+
+#define NUMVERTEXNORMALS 162
+extern float r_avertexnormals[NUMVERTEXNORMALS][3];
+vec3_t avelocities[NUMVERTEXNORMALS];
+float beamlength = 16;
+vec3_t avelocity = {23, 7, 3};
+float partstep = 0.01;
+float timescale = 0.01;
+
+void R_EntityParticles (entity_t *ent)
+{
+ int count;
+ int i;
+ particle_t *p;
+ float angle;
+ float sr, sp, sy, cr, cp, cy;
+ vec3_t forward;
+ float dist;
+
+ dist = 64;
+ count = 50;
+
+if (!avelocities[0][0])
+{
+for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
+avelocities[0][i] = (rand()&255) * 0.01;
+}
+
+
+ for (i=0 ; i<NUMVERTEXNORMALS ; i++)
+ {
+ angle = cl.time * avelocities[i][0];
+ sy = sin(angle);
+ cy = cos(angle);
+ angle = cl.time * avelocities[i][1];
+ sp = sin(angle);
+ cp = cos(angle);
+ angle = cl.time * avelocities[i][2];
+ sr = sin(angle);
+ cr = cos(angle);
+
+ forward[0] = cp*cy;
+ forward[1] = cp*sy;
+ forward[2] = -sp;
+
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 0.01;
+ p->color = 0x6f;
+ p->type = pt_explode;
+
+ p->org[0] = ent->origin[0] + r_avertexnormals[i][0]*dist + forward[0]*beamlength;
+ p->org[1] = ent->origin[1] + r_avertexnormals[i][1]*dist + forward[1]*beamlength;
+ p->org[2] = ent->origin[2] + r_avertexnormals[i][2]*dist + forward[2]*beamlength;
+ }
+}
+
+
+/*
+===============
+R_ClearParticles
+===============
+*/
+void R_ClearParticles (void)
+{
+ int i;
+
+ free_particles = &particles[0];
+ active_particles = NULL;
+
+ for (i=0 ;i<r_numparticles ; i++)
+ particles[i].next = &particles[i+1];
+ particles[r_numparticles-1].next = NULL;
+}
+
+
+void R_ReadPointFile_f (void)
+{
+ FILE *f;
+ vec3_t org;
+ int r;
+ int c;
+ particle_t *p;
+ char name[MAX_OSPATH];
+
+ sprintf (name,"maps/%s.pts", sv.name);
+
+ COM_FOpenFile (name, &f);
+ if (!f)
+ {
+ Con_Printf ("couldn't open %s\n", name);
+ return;
+ }
+
+ Con_Printf ("Reading %s...\n", name);
+ c = 0;
+ for ( ;; )
+ {
+ rb->splash(HZ, "fscanf stubbed 3");
+ //r = fscanf (f,"%f %f %f\n", &org[0], &org[1], &org[2]);
+ if (r != 3)
+ break;
+ c++;
+
+ if (!free_particles)
+ {
+ Con_Printf ("Not enough free particles\n");
+ break;
+ }
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = 99999;
+ p->color = (-c)&15;
+ p->type = pt_static;
+ VectorCopy (vec3_origin, p->vel);
+ VectorCopy (org, p->org);
+ }
+
+ fclose (f);
+ Con_Printf ("%i points read\n", c);
+}
+
+/*
+===============
+R_ParseParticleEffect
+
+Parse an effect out of the server message
+===============
+*/
+void R_ParseParticleEffect (void)
+{
+ vec3_t org, dir;
+ int i, count, msgcount, color;
+
+ for (i=0 ; i<3 ; i++)
+ org[i] = MSG_ReadCoord ();
+ for (i=0 ; i<3 ; i++)
+ dir[i] = MSG_ReadChar () * (1.0/16);
+ msgcount = MSG_ReadByte ();
+ color = MSG_ReadByte ();
+
+if (msgcount == 255)
+ count = 1024;
+else
+ count = msgcount;
+
+ R_RunParticleEffect (org, dir, color, count);
+}
+
+/*
+===============
+R_ParticleExplosion
+
+===============
+*/
+void R_ParticleExplosion (vec3_t org)
+{
+ int i, j;
+ particle_t *p;
+
+ for (i=0 ; i<1024 ; i++)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 5;
+ p->color = ramp1[0];
+ p->ramp = rand()&3;
+ if (i & 1)
+ {
+ p->type = pt_explode;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+ else
+ {
+ p->type = pt_explode2;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+ }
+}
+
+/*
+===============
+R_ParticleExplosion2
+
+===============
+*/
+void R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
+{
+ int i, j;
+ particle_t *p;
+ int colorMod = 0;
+
+ for (i=0; i<512; i++)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 0.3;
+ p->color = colorStart + (colorMod % colorLength);
+ colorMod++;
+
+ p->type = pt_blob;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+}
+
+/*
+===============
+R_BlobExplosion
+
+===============
+*/
+void R_BlobExplosion (vec3_t org)
+{
+ int i, j;
+ particle_t *p;
+
+ for (i=0 ; i<1024 ; i++)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 1 + (rand()&8)*0.05;
+
+ if (i & 1)
+ {
+ p->type = pt_blob;
+ p->color = 66 + rand()%6;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+ else
+ {
+ p->type = pt_blob2;
+ p->color = 150 + rand()%6;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+ }
+}
+
+/*
+===============
+R_RunParticleEffect
+
+===============
+*/
+void R_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
+{
+ int i, j;
+ particle_t *p;
+
+ for (i=0 ; i<count ; i++)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ if (count == 1024)
+ { // rocket explosion
+ p->die = cl.time + 5;
+ p->color = ramp1[0];
+ p->ramp = rand()&3;
+ if (i & 1)
+ {
+ p->type = pt_explode;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+ else
+ {
+ p->type = pt_explode2;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()%32)-16);
+ p->vel[j] = (rand()%512)-256;
+ }
+ }
+ }
+ else
+ {
+ p->die = cl.time + 0.1*(rand()%5);
+ p->color = (color&~7) + (rand()&7);
+ p->type = pt_slowgrav;
+ for (j=0 ; j<3 ; j++)
+ {
+ p->org[j] = org[j] + ((rand()&15)-8);
+ p->vel[j] = dir[j]*15;// + (rand()%300)-150;
+ }
+ }
+ }
+}
+
+
+/*
+===============
+R_LavaSplash
+
+===============
+*/
+void R_LavaSplash (vec3_t org)
+{
+ int i, j, k;
+ particle_t *p;
+ float vel;
+ vec3_t dir;
+
+ for (i=-16 ; i<16 ; i++)
+ for (j=-16 ; j<16 ; j++)
+ for (k=0 ; k<1 ; k++)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 2 + (rand()&31) * 0.02;
+ p->color = 224 + (rand()&7);
+ p->type = pt_slowgrav;
+
+ dir[0] = j*8 + (rand()&7);
+ dir[1] = i*8 + (rand()&7);
+ dir[2] = 256;
+
+ p->org[0] = org[0] + dir[0];
+ p->org[1] = org[1] + dir[1];
+ p->org[2] = org[2] + (rand()&63);
+
+ VectorNormalize (dir);
+ vel = 50 + (rand()&63);
+ VectorScale (dir, vel, p->vel);
+ }
+}
+
+/*
+===============
+R_TeleportSplash
+
+===============
+*/
+void R_TeleportSplash (vec3_t org)
+{
+ int i, j, k;
+ particle_t *p;
+ float vel;
+ vec3_t dir;
+
+ for (i=-16 ; i<16 ; i+=4)
+ for (j=-16 ; j<16 ; j+=4)
+ for (k=-24 ; k<32 ; k+=4)
+ {
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ p->die = cl.time + 0.2 + (rand()&7) * 0.02;
+ p->color = 7 + (rand()&7);
+ p->type = pt_slowgrav;
+
+ dir[0] = j*8;
+ dir[1] = i*8;
+ dir[2] = k*8;
+
+ p->org[0] = org[0] + i + (rand()&3);
+ p->org[1] = org[1] + j + (rand()&3);
+ p->org[2] = org[2] + k + (rand()&3);
+
+ VectorNormalize (dir);
+ vel = 50 + (rand()&63);
+ VectorScale (dir, vel, p->vel);
+ }
+}
+
+void R_RocketTrail (vec3_t start, vec3_t end, int type)
+{
+ vec3_t vec;
+ float len;
+ int j;
+ particle_t *p;
+ int dec;
+ static int tracercount;
+
+ VectorSubtract (end, start, vec);
+ len = VectorNormalize (vec);
+ if (type < 128)
+ dec = 3;
+ else
+ {
+ dec = 1;
+ type -= 128;
+ }
+
+ while (len > 0)
+ {
+ len -= dec;
+
+ if (!free_particles)
+ return;
+ p = free_particles;
+ free_particles = p->next;
+ p->next = active_particles;
+ active_particles = p;
+
+ VectorCopy (vec3_origin, p->vel);
+ p->die = cl.time + 2;
+
+ switch (type)
+ {
+ case 0: // rocket trail
+ p->ramp = (rand()&3);
+ p->color = ramp3[(int)p->ramp];
+ p->type = pt_fire;
+ for (j=0 ; j<3 ; j++)
+ p->org[j] = start[j] + ((rand()%6)-3);
+ break;
+
+ case 1: // smoke smoke
+ p->ramp = (rand()&3) + 2;
+ p->color = ramp3[(int)p->ramp];
+ p->type = pt_fire;
+ for (j=0 ; j<3 ; j++)
+ p->org[j] = start[j] + ((rand()%6)-3);
+ break;
+
+ case 2: // blood
+ p->type = pt_grav;
+ p->color = 67 + (rand()&3);
+ for (j=0 ; j<3 ; j++)
+ p->org[j] = start[j] + ((rand()%6)-3);
+ break;
+
+ case 3:
+ case 5: // tracer
+ p->die = cl.time + 0.5;
+ p->type = pt_static;
+ if (type == 3)
+ p->color = 52 + ((tracercount&4)<<1);
+ else
+ p->color = 230 + ((tracercount&4)<<1);
+
+ tracercount++;
+
+ VectorCopy (start, p->org);
+ if (tracercount & 1)
+ {
+ p->vel[0] = 30*vec[1];
+ p->vel[1] = 30*-vec[0];
+ }
+ else
+ {
+ p->vel[0] = 30*-vec[1];
+ p->vel[1] = 30*vec[0];
+ }
+ break;
+
+ case 4: // slight blood
+ p->type = pt_grav;
+ p->color = 67 + (rand()&3);
+ for (j=0 ; j<3 ; j++)
+ p->org[j] = start[j] + ((rand()%6)-3);
+ len -= 3;
+ break;
+
+ case 6: // voor trail
+ p->color = 9*16 + 8 + (rand()&3);
+ p->type = pt_static;
+ p->die = cl.time + 0.3;
+ for (j=0 ; j<3 ; j++)
+ p->org[j] = start[j] + ((rand()&15)-8);
+ break;
+ }
+
+
+ VectorAdd (start, vec, start);
+ }
+}
+
+
+/*
+===============
+R_DrawParticles
+===============
+*/
+extern cvar_t sv_gravity;
+
+void R_DrawParticles (void)
+{
+ particle_t *p, *kill;
+ float grav;
+ int i;
+ float time2, time3;
+ float time1;
+ float dvel;
+ float frametime;
+
+#ifdef GLQUAKE
+ vec3_t up, right;
+ float scale;
+
+ GL_Bind(particletexture);
+ glEnable (GL_BLEND);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ glBegin (GL_TRIANGLES);
+
+ VectorScale (vup, 1.5, up);
+ VectorScale (vright, 1.5, right);
+#else
+ D_StartParticles ();
+
+ VectorScale (vright, xscaleshrink, r_pright);
+ VectorScale (vup, yscaleshrink, r_pup);
+ VectorCopy (vpn, r_ppn);
+#endif
+ frametime = cl.time - cl.oldtime;
+ time3 = frametime * 15;
+ time2 = frametime * 10; // 15;
+ time1 = frametime * 5;
+ grav = frametime * sv_gravity.value * 0.05;
+ dvel = 4*frametime;
+
+ for ( ;; )
+ {
+ kill = active_particles;
+ if (kill && kill->die < cl.time)
+ {
+ active_particles = kill->next;
+ kill->next = free_particles;
+ free_particles = kill;
+ continue;
+ }
+ break;
+ }
+
+ for (p=active_particles ; p ; p=p->next)
+ {
+ for ( ;; )
+ {
+ kill = p->next;
+ if (kill && kill->die < cl.time)
+ {
+ p->next = kill->next;
+ kill->next = free_particles;
+ free_particles = kill;
+ continue;
+ }
+ break;
+ }
+
+#ifdef GLQUAKE
+ // hack a scale up to keep particles from disapearing
+ scale = (p->org[0] - r_origin[0])*vpn[0] + (p->org[1] - r_origin[1])*vpn[1]
+ + (p->org[2] - r_origin[2])*vpn[2];
+ if (scale < 20)
+ scale = 1;
+ else
+ scale = 1 + scale * 0.004;
+ glColor3ubv ((byte *)&d_8to24table[(int)p->color]);
+ glTexCoord2f (0,0);
+ glVertex3fv (p->org);
+ glTexCoord2f (1,0);
+ glVertex3f (p->org[0] + up[0]*scale, p->org[1] + up[1]*scale, p->org[2] + up[2]*scale);
+ glTexCoord2f (0,1);
+ glVertex3f (p->org[0] + right[0]*scale, p->org[1] + right[1]*scale, p->org[2] + right[2]*scale);
+#else
+ D_DrawParticle (p);
+#endif
+ p->org[0] += p->vel[0]*frametime;
+ p->org[1] += p->vel[1]*frametime;
+ p->org[2] += p->vel[2]*frametime;
+
+ switch (p->type)
+ {
+ case pt_static:
+ break;
+ case pt_fire:
+ p->ramp += time1;
+ if (p->ramp >= 6)
+ p->die = -1;
+ else
+ p->color = ramp3[(int)p->ramp];
+ p->vel[2] += grav;
+ break;
+
+ case pt_explode:
+ p->ramp += time2;
+ if (p->ramp >=8)
+ p->die = -1;
+ else
+ p->color = ramp1[(int)p->ramp];
+ for (i=0 ; i<3 ; i++)
+ p->vel[i] += p->vel[i]*dvel;
+ p->vel[2] -= grav;
+ break;
+
+ case pt_explode2:
+ p->ramp += time3;
+ if (p->ramp >=8)
+ p->die = -1;
+ else
+ p->color = ramp2[(int)p->ramp];
+ for (i=0 ; i<3 ; i++)
+ p->vel[i] -= p->vel[i]*frametime;
+ p->vel[2] -= grav;
+ break;
+
+ case pt_blob:
+ for (i=0 ; i<3 ; i++)
+ p->vel[i] += p->vel[i]*dvel;
+ p->vel[2] -= grav;
+ break;
+
+ case pt_blob2:
+ for (i=0 ; i<2 ; i++)
+ p->vel[i] -= p->vel[i]*dvel;
+ p->vel[2] -= grav;
+ break;
+
+ case pt_grav:
+#ifdef QUAKE2
+ p->vel[2] -= grav * 20;
+ break;
+#endif
+ case pt_slowgrav:
+ p->vel[2] -= grav;
+ break;
+ }
+ }
+
+#ifdef GLQUAKE
+ glEnd ();
+ glDisable (GL_BLEND);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+#else
+ D_EndParticles ();
+#endif
+}
+
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