X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=r_explosion.c;h=b60bfc2d0f56cbc40da6d4b553bd2bccc0f856fe;hb=aabed326b591ab89d60cd849a38a320df1b1dd64;hp=8061b6062acd65b3fd929b014be899a695be6def;hpb=45982a9894c5bff60ff494a0f82865ec267d52f7;p=xonotic%2Fdarkplaces.git diff --git a/r_explosion.c b/r_explosion.c index 8061b606..b60bfc2d 100644 --- a/r_explosion.c +++ b/r_explosion.c @@ -19,79 +19,54 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "quakedef.h" +#include "cl_collision.h" -#define MAX_EXPLOSIONS 64 -#define EXPLOSIONGRID 16 +#ifdef MAX_EXPLOSIONS +#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; +#define EXPLOSIONTRIS (EXPLOSIONGRID*EXPLOSIONGRID*2) -explosiongas_t explosiongas[MAX_EXPLOSIONGAS]; -*/ +static int numexplosions = 0; -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 unsigned short 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; +#endif -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_CLIENT | CVAR_SAVE, "r_explosionclip", "1", "enables collision detection for explosion shell (so that it flattens against walls and floors)"}; +#ifdef MAX_EXPLOSIONS +static cvar_t r_drawexplosions = {CVAR_CLIENT, "r_drawexplosions", "1", "enables rendering of explosion shells (see also cl_particles_explosions_shell)"}; -void r_explosion_start(void) +//extern qboolean r_loadfog; +static void r_explosion_start(void) { int x, y; - byte noise1[128][128], noise2[128][128], noise3[128][128], data[128][128][4]; + static unsigned char noise1[128][128], noise2[128][128], noise3[128][128], data[128][128][4]; + explosiontexturepool = R_AllocTexturePool(); + explosiontexture = NULL; + //explosiontexturefog = NULL; fractalnoise(&noise1[0][0], 128, 32); fractalnoise(&noise2[0][0], 128, 4); fractalnoise(&noise3[0][0], 128, 4); @@ -105,31 +80,57 @@ void r_explosion_start(void) g = (j * 256) / 256; b = (j * 128) / 256; a = noise3[y][x] * 3 - 128; - data[y][x][0] = bound(0, r, 255); + data[y][x][2] = bound(0, r, 255); data[y][x][1] = bound(0, g, 255); - data[y][x][2] = bound(0, b, 255); + data[y][x][0] = bound(0, b, 255); 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); - 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); + explosiontexture = R_LoadTexture2D(explosiontexturepool, "explosiontexture", 128, 128, &data[0][0][0], TEXTYPE_BGRA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_FORCELINEAR, -1, NULL); +// if (r_loadfog) +// { +// 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_LoadTexture2D(explosiontexturepool, "explosiontexture_fog", 128, 128, &data[0][0][0], TEXTYPE_BGRA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_FORCELINEAR, 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) { + numexplosions = 0; 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; +} +#endif + void R_Explosion_Init(void) { +#ifdef MAX_EXPLOSIONS int i, x, y; i = 0; for (y = 0;y < EXPLOSIONGRID;y++) @@ -146,255 +147,139 @@ 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; - } +#endif Cvar_RegisterVariable(&r_explosionclip); +#ifdef MAX_EXPLOSIONS Cvar_RegisterVariable(&r_drawexplosions); - R_RegisterModule("R_Explosions", r_explosion_start, r_explosion_shutdown, r_explosion_newmap); + R_RegisterModule("R_Explosions", r_explosion_start, r_explosion_shutdown, r_explosion_newmap, NULL, NULL); +#endif } -void R_NewExplosion(vec3_t org) +void R_NewExplosion(const vec3_t org) { +#ifdef MAX_EXPLOSIONS 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 (!e->alpha) { - explosion[i].alpha = EXPLOSIONFADESTART; + numexplosions = max(numexplosions, i + 1); + 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_TraceLine(e->origin, e->vert[j], MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, 0, 0, collision_extendmovelength.value, true, false, NULL, false, 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--; - } - */ +#endif } -void R_DrawExplosion(explosion_t *e) +#ifdef MAX_EXPLOSIONS +static void R_DrawExplosion_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist) { - 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++) + int surfacelistindex = 0; + const int numtriangles = EXPLOSIONTRIS, numverts = EXPLOSIONVERTS; + GL_BlendFunc(GL_SRC_ALPHA, GL_ONE); + GL_DepthMask(false); + GL_DepthRange(0, 1); + GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset); + GL_DepthTest(true); + GL_CullFace(r_refdef.view.cullface_back); + R_EntityMatrix(&identitymatrix); + +// R_Mesh_ResetTextureState(); + R_SetupShader_Generic(explosiontexture, false, false, false); + for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++) { - 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 + surfacelist[surfacelistindex]; + // FIXME: this can't properly handle r_refdef.view.colorscale > 1 + GL_Color(e->alpha * r_refdef.view.colorscale, e->alpha * r_refdef.view.colorscale, e->alpha * r_refdef.view.colorscale, 1); + R_Mesh_PrepareVertices_Generic_Arrays(numverts, e->vert[0], NULL, explosiontexcoord2f[0]); + R_Mesh_Draw(0, numverts, 0, numtriangles, NULL, NULL, 0, explosiontris[0], NULL, 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); + if (e->alpha < 0 || cl.time > e->endtime) + { + e->alpha = 0; + return; + } 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_TraceLine(e->vert[i], end, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, 0, 0, collision_extendmovelength.value, true, false, NULL, false, 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); } } } +#endif void R_DrawExplosions(void) { +#ifdef MAX_EXPLOSIONS int i; - if (!r_drawexplosions.value) + + if (!r_drawexplosions.integer) return; - for (i = 0;i < MAX_EXPLOSIONS;i++) + + for (i = 0;i < numexplosions;i++) { - if (explosion[i].alpha > 0.0f) + if (explosion[i].alpha) { - R_DrawExplosion(&explosion[i]); + R_MoveExplosion(&explosion[i]); + if (explosion[i].alpha) + R_MeshQueue_AddTransparent(TRANSPARENTSORT_DISTANCE, explosion[i].origin, R_DrawExplosion_TransparentCallback, NULL, i, NULL); } } + while (numexplosions > 0 && explosion[i-1].alpha <= 0) + numexplosions--; +#endif } +