*/
#include "quakedef.h"
+#include "cl_collision.h"
#define MAX_EXPLOSIONS 64
-#define EXPLOSIONGRID 16
+#define EXPLOSIONGRID 8
#define EXPLOSIONVERTS ((EXPLOSIONGRID+1)*(EXPLOSIONGRID+1))
-#define EXPLOSIONTRIS (EXPLOSIONVERTS*2)
-#define EXPLOSIONSTARTRADIUS (20.0f)
-#define EXPLOSIONSTARTVELOCITY (256.0f)
-#define EXPLOSIONFADESTART (1.5f)
-#define EXPLOSIONFADERATE (4.5f)
-/*
-#define MAX_EXPLOSIONGAS (MAX_EXPLOSIONS * EXPLOSIONGAS)
-#define EXPLOSIONGAS 8
-#define EXPLOSIONGASSTARTRADIUS (15.0f)
-#define EXPLOSIONGASSTARTVELOCITY (50.0f)
-#define GASDENSITY_SCALER (32768.0f / EXPLOSIONGAS)
-#define GASFADERATE (GASDENSITY_SCALER * EXPLOSIONGAS * 2)
-
-typedef struct explosiongas_s
-{
- float pressure;
- vec3_t origin;
- vec3_t velocity;
-}
-explosiongas_t;
-
-explosiongas_t explosiongas[MAX_EXPLOSIONGAS];
-*/
+#define EXPLOSIONTRIS (EXPLOSIONGRID*EXPLOSIONGRID*2)
-vec3_t explosionspherevert[EXPLOSIONVERTS];
-vec3_t explosionspherevertvel[EXPLOSIONVERTS];
-float explosiontexcoords[EXPLOSIONVERTS][2];
-int explosiontris[EXPLOSIONTRIS][3];
-int explosionnoiseindex[EXPLOSIONVERTS];
-vec3_t explosionpoint[EXPLOSIONVERTS];
+static float explosiontexcoord2f[EXPLOSIONVERTS][2];
+static int explosiontris[EXPLOSIONTRIS][3];
+static int explosionnoiseindex[EXPLOSIONVERTS];
+static vec3_t explosionpoint[EXPLOSIONVERTS];
typedef struct explosion_s
{
float starttime;
+ float endtime;
+ float time;
float alpha;
+ float fade;
+ vec3_t origin;
vec3_t vert[EXPLOSIONVERTS];
vec3_t vertvel[EXPLOSIONVERTS];
+ qboolean clipping;
}
explosion_t;
-explosion_t explosion[MAX_EXPLOSIONS];
+static explosion_t explosion[MAX_EXPLOSIONS];
-rtexture_t *explosiontexture;
-rtexture_t *explosiontexturefog;
+static rtexture_t *explosiontexture;
+static rtexture_t *explosiontexturefog;
-cvar_t r_explosionclip = {CVAR_SAVE, "r_explosionclip", "1"};
-cvar_t r_drawexplosions = {0, "r_drawexplosions", "1"};
+static rtexturepool_t *explosiontexturepool;
-int R_ExplosionVert(int column, int row)
-{
- int i;
- float a, b, c;
- i = row * (EXPLOSIONGRID + 1) + column;
- a = row * M_PI * 2 / EXPLOSIONGRID;
- b = column * M_PI * 2 / EXPLOSIONGRID;
- c = cos(b);
- explosionpoint[i][0] = cos(a) * c;
- explosionpoint[i][1] = sin(a) * c;
- explosionpoint[i][2] = -sin(b);
- explosionnoiseindex[i] = (row & (EXPLOSIONGRID - 1)) * EXPLOSIONGRID + (column & (EXPLOSIONGRID - 1));
- explosiontexcoords[i][0] = (float) column / (float) EXPLOSIONGRID;
- explosiontexcoords[i][1] = (float) row / (float) EXPLOSIONGRID;
- return i;
-}
+cvar_t r_explosionclip = {CVAR_SAVE, "r_explosionclip", "1", "enables collision detection for explosion shell (so that it flattens against walls and floors)"};
+static cvar_t r_drawexplosions = {0, "r_drawexplosions", "1", "enables rendering of explosion shells (see also cl_particles_explosions_shell)"};
-void r_explosion_start(void)
+static void r_explosion_start(void)
{
int x, y;
- byte noise1[128][128], noise2[128][128], noise3[128][128], data[128][128][4];
+ unsigned char noise1[128][128], noise2[128][128], noise3[128][128], data[128][128][4];
+ explosiontexturepool = R_AllocTexturePool();
fractalnoise(&noise1[0][0], 128, 32);
fractalnoise(&noise2[0][0], 128, 4);
fractalnoise(&noise3[0][0], 128, 4);
data[y][x][3] = bound(0, a, 255);
}
}
- explosiontexture = R_LoadTexture ("explosiontexture", 128, 128, &data[0][0][0], TEXF_MIPMAP | TEXF_ALPHA | TEXF_RGBA | TEXF_PRECACHE);
+ explosiontexture = R_LoadTexture2D(explosiontexturepool, "explosiontexture", 128, 128, &data[0][0][0], TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE, NULL);
for (y = 0;y < 128;y++)
for (x = 0;x < 128;x++)
data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
- explosiontexturefog = R_LoadTexture ("explosiontexturefog", 128, 128, &data[0][0][0], TEXF_MIPMAP | TEXF_ALPHA | TEXF_RGBA | TEXF_PRECACHE);
+ explosiontexturefog = R_LoadTexture2D(explosiontexturepool, "explosiontexturefog", 128, 128, &data[0][0][0], TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE, NULL);
+ // note that explosions survive the restart
}
-void r_explosion_shutdown(void)
+static void r_explosion_shutdown(void)
{
+ R_FreeTexturePool(&explosiontexturepool);
}
-void r_explosion_newmap(void)
+static void r_explosion_newmap(void)
{
memset(explosion, 0, sizeof(explosion));
-// memset(explosiongas, 0, sizeof(explosiongas));
+}
+
+static int R_ExplosionVert(int column, int row)
+{
+ int i;
+ float yaw, pitch;
+ // top and bottom rows are all one position...
+ if (row == 0 || row == EXPLOSIONGRID)
+ column = 0;
+ i = row * (EXPLOSIONGRID + 1) + column;
+ yaw = ((double) column / EXPLOSIONGRID) * M_PI * 2;
+ pitch = (((double) row / EXPLOSIONGRID) - 0.5) * M_PI;
+ explosionpoint[i][0] = cos(yaw) * cos(pitch);
+ explosionpoint[i][1] = sin(yaw) * cos(pitch);
+ explosionpoint[i][2] = 1 * -sin(pitch);
+ explosiontexcoord2f[i][0] = (float) column / (float) EXPLOSIONGRID;
+ explosiontexcoord2f[i][1] = (float) row / (float) EXPLOSIONGRID;
+ explosionnoiseindex[i] = (row % EXPLOSIONGRID) * EXPLOSIONGRID + (column % EXPLOSIONGRID);
+ return i;
}
void R_Explosion_Init(void)
i++;
}
}
- for (i = 0;i < EXPLOSIONVERTS;i++)
- {
- explosionspherevert[i][0] = explosionpoint[i][0] * EXPLOSIONSTARTRADIUS;
- explosionspherevert[i][1] = explosionpoint[i][1] * EXPLOSIONSTARTRADIUS;
- explosionspherevert[i][2] = explosionpoint[i][2] * EXPLOSIONSTARTRADIUS;
- explosionspherevertvel[i][0] = explosionpoint[i][0] * EXPLOSIONSTARTVELOCITY;
- explosionspherevertvel[i][1] = explosionpoint[i][1] * EXPLOSIONSTARTVELOCITY;
- explosionspherevertvel[i][2] = explosionpoint[i][2] * EXPLOSIONSTARTVELOCITY;
- }
Cvar_RegisterVariable(&r_explosionclip);
Cvar_RegisterVariable(&r_drawexplosions);
R_RegisterModule("R_Explosions", r_explosion_start, r_explosion_shutdown, r_explosion_newmap);
}
-void R_NewExplosion(vec3_t org)
+void R_NewExplosion(const vec3_t org)
{
int i, j;
- float dist, v[3];
- byte noise[EXPLOSIONGRID*EXPLOSIONGRID];
- fractalnoise(noise, EXPLOSIONGRID, 4);
- for (i = 0;i < MAX_EXPLOSIONS;i++)
+ float dist, n;
+ explosion_t *e;
+ trace_t trace;
+ unsigned char noise[EXPLOSIONGRID*EXPLOSIONGRID];
+ fractalnoisequick(noise, EXPLOSIONGRID, 4); // adjust noise grid size according to explosion
+ for (i = 0, e = explosion;i < MAX_EXPLOSIONS;i++, e++)
{
- if (explosion[i].alpha <= 0.0f)
+ if (cl.time >= e->endtime)
{
- explosion[i].alpha = EXPLOSIONFADESTART;
+ e->starttime = cl.time;
+ e->endtime = cl.time + cl_explosions_lifetime.value;
+ e->time = e->starttime;
+ e->alpha = cl_explosions_alpha_start.value;
+ e->fade = (cl_explosions_alpha_start.value - cl_explosions_alpha_end.value) / cl_explosions_lifetime.value;
+ e->clipping = r_explosionclip.integer != 0;
+ VectorCopy(org, e->origin);
for (j = 0;j < EXPLOSIONVERTS;j++)
{
- dist = noise[explosionnoiseindex[j]] * (1.0f / 256.0f) + 0.5;
- VectorMA(org, dist, explosionspherevert[j], v);
- TraceLine(org, v, explosion[i].vert[j], NULL, 0);
- VectorScale(explosionspherevertvel[j], dist, explosion[i].vertvel[j]);
+ // calculate start origin and velocity
+ n = noise[explosionnoiseindex[j]] * (1.0f / 255.0f) + 0.5;
+ dist = n * cl_explosions_size_start.value;
+ VectorMA(e->origin, dist, explosionpoint[j], e->vert[j]);
+ dist = n * (cl_explosions_size_end.value - cl_explosions_size_start.value) / cl_explosions_lifetime.value;
+ VectorScale(explosionpoint[j], dist, e->vertvel[j]);
+ // clip start origin
+ if (e->clipping)
+ {
+ trace = CL_TraceBox(e->origin, vec3_origin, vec3_origin, e->vert[j], true, NULL, SUPERCONTENTS_SOLID, false);
+ VectorCopy(trace.endpos, e->vert[i]);
+ }
}
break;
}
}
-
- /*
- i = 0;
- j = EXPLOSIONGAS;
- while (i < MAX_EXPLOSIONGAS && j > 0)
- {
- while (explosiongas[i].pressure > 0)
- {
- i++;
- if (i >= MAX_EXPLOSIONGAS)
- return;
- }
- VectorRandom(v);
- VectorMA(org, EXPLOSIONGASSTARTRADIUS, v, v);
- TraceLine(org, v, explosiongas[i].origin, NULL, 0);
- VectorRandom(v);
- VectorScale(v, EXPLOSIONGASSTARTVELOCITY, explosiongas[i].velocity);
- explosiongas[i].pressure = j * GASDENSITY_SCALER;
- j--;
- }
- */
}
-void R_DrawExplosion(explosion_t *e)
+static void R_DrawExplosion_TransparentCallback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
{
- int i, index, *indexlist = &explosiontris[0][0], alpha = bound(0, e->alpha * 128.0f, 128), texnum, fogtexnum;
- float s, t;
-// s = cl.time * 1;
-// t = cl.time * 0.75;
-// s -= (int) s;
-// t -= (int) t;
- s = 0;
- t = 0;
- /*
- glColor4f(1,1,1,e->alpha);
- glDisable(GL_TEXTURE_2D);
-// glBindTexture(GL_TEXTURE_2D, explosiontexture);
- glVertexPointer(3, GL_FLOAT, sizeof(float[3]), (float *) &e->vert[0][0]);
-// glTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), (float *) &explosiontexcoords[0][0]);
- glEnableClientState(GL_VERTEX_ARRAY);
-// glEnableClientState(GL_TEXTURE_COORD_ARRAY);
- glDrawElements(GL_TRIANGLES, EXPLOSIONTRIS, GL_UNSIGNED_INT, indexlist);
-// glDisableClientState(GL_TEXTURE_COORD_ARRAY);
- glDisableClientState(GL_VERTEX_ARRAY);
- glEnable(GL_TEXTURE_2D);
- */
- texnum = R_GetTexture(explosiontexture);
- fogtexnum = R_GetTexture(explosiontexturefog);
- for (i = 0;i < EXPLOSIONTRIS;i++)
- {
- transpolybegin(texnum, 0, fogtexnum, TPOLYTYPE_ALPHA);
- index = *indexlist++;transpolyvert(e->vert[index][0], e->vert[index][1], e->vert[index][2], explosiontexcoords[index][0] + s, explosiontexcoords[index][1] + t, 255, 255, 255, alpha);
- index = *indexlist++;transpolyvert(e->vert[index][0], e->vert[index][1], e->vert[index][2], explosiontexcoords[index][0] + s, explosiontexcoords[index][1] + t, 255, 255, 255, alpha);
- index = *indexlist++;transpolyvert(e->vert[index][0], e->vert[index][1], e->vert[index][2], explosiontexcoords[index][0] + s, explosiontexcoords[index][1] + t, 255, 255, 255, alpha);
- transpolyend();
- }
+ const explosion_t *e = explosion + surfacenumber;
+ int numtriangles, numverts;
+ float alpha;
+ rmeshstate_t m;
+
+ GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
+ GL_DepthMask(false);
+ GL_DepthTest(true);
+ R_Mesh_Matrix(&identitymatrix);
+
+ numtriangles = EXPLOSIONTRIS;
+ numverts = EXPLOSIONVERTS;
+ alpha = e->alpha;
+
+ memset(&m, 0, sizeof(m));
+ m.tex[0] = R_GetTexture(explosiontexture);
+ m.pointer_texcoord[0] = explosiontexcoord2f[0];
+ m.pointer_vertex = e->vert[0];
+ R_Mesh_State(&m);
+
+ GL_Color(alpha, alpha, alpha, 1);
+
+ GL_LockArrays(0, numverts);
+ R_Mesh_Draw(0, numverts, numtriangles, explosiontris[0]);
+ GL_LockArrays(0, 0);
}
-void R_MoveExplosion(explosion_t *e, /*explosiongas_t **list, explosiongas_t **listend, */float frametime)
+static void R_MoveExplosion(explosion_t *e)
{
int i;
- vec3_t end;
- vec_t frictionscale;
- /*
- vec3_t diff;
- vec_t dist;
- explosiongas_t **l;
- */
- e->alpha -= frametime * EXPLOSIONFADERATE;
- frictionscale = 1 - frametime;
- frictionscale = bound(0, frictionscale, 1);
+ float dot, end[3], frametime;
+ trace_t trace;
+
+ frametime = cl.time - e->time;
+ e->time = cl.time;
+ e->alpha = e->alpha - (e->fade * frametime);
for (i = 0;i < EXPLOSIONVERTS;i++)
{
if (e->vertvel[i][0] || e->vertvel[i][1] || e->vertvel[i][2])
{
- end[0] = e->vert[i][0] + frametime * e->vertvel[i][0];
- end[1] = e->vert[i][1] + frametime * e->vertvel[i][1];
- end[2] = e->vert[i][2] + frametime * e->vertvel[i][2];
- if (r_explosionclip.value)
+ VectorMA(e->vert[i], frametime, e->vertvel[i], end);
+ if (e->clipping)
{
- float f, dot;
- vec3_t impact, normal;
- f = TraceLine(e->vert[i], end, impact, normal, 0);
- VectorCopy(impact, e->vert[i]);
- if (f < 1)
+ trace = CL_TraceBox(e->vert[i], vec3_origin, vec3_origin, end, true, NULL, SUPERCONTENTS_SOLID, false);
+ if (trace.fraction < 1)
{
// clip velocity against the wall
- dot = DotProduct(e->vertvel[i], normal) * -1.125f;
- e->vertvel[i][0] += normal[0] * dot;
- e->vertvel[i][1] += normal[1] * dot;
- e->vertvel[i][2] += normal[2] * dot;
+ dot = -DotProduct(e->vertvel[i], trace.plane.normal);
+ VectorMA(e->vertvel[i], dot, trace.plane.normal, e->vertvel[i]);
}
+ VectorCopy(trace.endpos, e->vert[i]);
}
else
- {
VectorCopy(end, e->vert[i]);
- }
- e->vertvel[i][2] += sv_gravity.value * frametime * -0.25f;
- VectorScale(e->vertvel[i], frictionscale, e->vertvel[i]);
- }
- /*
- for (l = list;l < listend;l++)
- {
- VectorSubtract(e->vert[i], (*l)->origin, diff);
- dist = DotProduct(diff, diff);
- if (dist < 4096 && dist >= 1)
- {
- dist = (*l)->pressure * frametime / dist;
- VectorMA(e->vertvel[i], dist, diff, e->vertvel[i]);
- }
}
- */
}
}
-/*
-void R_MoveExplosionGas(explosiongas_t *e, explosiongas_t **list, explosiongas_t **listend, float frametime)
-{
- vec3_t end, diff;
- vec_t dist, frictionscale;
- explosiongas_t **l;
- frictionscale = 1 - frametime;
- frictionscale = bound(0, frictionscale, 1);
- if (e->velocity[0] || e->velocity[1] || e->velocity[2])
- {
- end[0] = e->origin[0] + frametime * e->velocity[0];
- end[1] = e->origin[1] + frametime * e->velocity[1];
- end[2] = e->origin[2] + frametime * e->velocity[2];
- if (r_explosionclip.value)
- {
- float f, dot;
- vec3_t impact, normal;
- f = TraceLine(e->origin, end, impact, normal, 0);
- VectorCopy(impact, e->origin);
- if (f < 1)
- {
- // clip velocity against the wall
- dot = DotProduct(e->velocity, normal) * -1.3f;
- e->velocity[0] += normal[0] * dot;
- e->velocity[1] += normal[1] * dot;
- e->velocity[2] += normal[2] * dot;
- }
- }
- else
- {
- VectorCopy(end, e->origin);
- }
- e->velocity[2] += sv_gravity.value * frametime;
- VectorScale(e->velocity, frictionscale, e->velocity);
- }
- for (l = list;l < listend;l++)
- {
- if (*l != e)
- {
- VectorSubtract(e->origin, (*l)->origin, diff);
- dist = DotProduct(diff, diff);
- if (dist < 4096 && dist >= 1)
- {
- dist = (*l)->pressure * frametime / dist;
- VectorMA(e->velocity, dist, diff, e->velocity);
- }
- }
- }
-}
-*/
void R_MoveExplosions(void)
{
int i;
- float frametime;
-// explosiongas_t *gaslist[MAX_EXPLOSIONGAS], **l, **end;
- frametime = cl.time - cl.oldtime;
- /*
- l = &gaslist[0];
- for (i = 0;i < MAX_EXPLOSIONGAS;i++)
- {
- if (explosiongas[i].pressure > 0)
- {
- explosiongas[i].pressure -= frametime * GASFADERATE;
- if (explosiongas[i].pressure > 0)
- *l++ = &explosiongas[i];
- }
- }
- end = l;
- for (l = gaslist;l < end;l++)
- R_MoveExplosionGas(*l, gaslist, end, frametime);
- */
-
for (i = 0;i < MAX_EXPLOSIONS;i++)
- {
- if (explosion[i].alpha > 0.0f)
- {
- if (explosion[i].starttime > cl.time)
- {
- explosion[i].alpha = 0;
- continue;
- }
- R_MoveExplosion(&explosion[i], /*gaslist, end, */frametime);
- }
- }
+ if (cl.time < explosion[i].endtime)
+ R_MoveExplosion(&explosion[i]);
}
void R_DrawExplosions(void)
{
int i;
- if (!r_drawexplosions.value)
+
+ if (!r_drawexplosions.integer)
return;
for (i = 0;i < MAX_EXPLOSIONS;i++)
- {
- if (explosion[i].alpha > 0.0f)
- {
- R_DrawExplosion(&explosion[i]);
- }
- }
+ if (r_refdef.time < explosion[i].endtime)
+ R_MeshQueue_AddTransparent(explosion[i].origin, R_DrawExplosion_TransparentCallback, NULL, i, NULL);
}
+