X-Git-Url: http://git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=r_explosion.c;h=104a9753d477f19f53447632a4bc6610167b207b;hp=da305b980a2af2713ccc0278d6ceb69427eb0eee;hb=9becec9419d9a20c7d373b14e1106d5f0ce78494;hpb=cf93d91077855abf71419763e56bc774bc3b244f diff --git a/r_explosion.c b/r_explosion.c index da305b98..104a9753 100644 --- a/r_explosion.c +++ b/r_explosion.c @@ -21,46 +21,52 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #include "quakedef.h" #include "cl_collision.h" -#define MAX_EXPLOSIONS 64 +#ifdef MAX_EXPLOSIONS #define EXPLOSIONGRID 8 #define EXPLOSIONVERTS ((EXPLOSIONGRID+1)*(EXPLOSIONGRID+1)) #define EXPLOSIONTRIS (EXPLOSIONGRID*EXPLOSIONGRID*2) -#define EXPLOSIONSTARTVELOCITY (256.0f) -#define EXPLOSIONFADESTART (1.5f) -#define EXPLOSIONFADERATE (3.0f) -float explosiontexcoords[EXPLOSIONVERTS][2]; -int explosiontris[EXPLOSIONTRIS][3]; -int explosionnoiseindex[EXPLOSIONVERTS]; -vec3_t explosionpoint[EXPLOSIONVERTS]; -vec3_t explosionspherevertvel[EXPLOSIONVERTS]; +static int numexplosions = 0; + +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]; + qbool 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; -rtexturepool_t *explosiontexturepool; +static rtexturepool_t *explosiontexturepool; +#endif -cvar_t r_explosionclip = {CVAR_SAVE, "r_explosionclip", "1"}; -cvar_t r_drawexplosions = {0, "r_drawexplosions", "1"}; +cvar_t r_explosionclip = {CF_CLIENT | CF_ARCHIVE, "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 = {CF_CLIENT, "r_drawexplosions", "1", "enables rendering of explosion shells (see also cl_particles_explosions_shell)"}; -void r_explosion_start(void) +//extern qbool r_loadfog; +static void r_explosion_start(void) { int x, y; - qbyte 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); @@ -74,55 +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 (explosiontexturepool, "explosiontexture", 128, 128, &data[0][0][0], TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | 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 (explosiontexturepool, "explosiontexturefog", 128, 128, &data[0][0][0], TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | 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)); } -int R_ExplosionVert(int column, int row) +static 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); - explosionspherevertvel[i][0] = explosionpoint[i][0] * EXPLOSIONSTARTVELOCITY; - explosionspherevertvel[i][1] = explosionpoint[i][1] * EXPLOSIONSTARTVELOCITY; - explosionspherevertvel[i][2] = explosionpoint[i][2] * EXPLOSIONSTARTVELOCITY; - explosiontexcoords[i][0] = (float) column / (float) EXPLOSIONGRID; - explosiontexcoords[i][1] = (float) row / (float) EXPLOSIONGRID; + 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++) @@ -140,171 +148,138 @@ void R_Explosion_Init(void) } } +#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; - qbyte noise[EXPLOSIONGRID*EXPLOSIONGRID]; + 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;i < MAX_EXPLOSIONS;i++) + for (i = 0, e = explosion;i < MAX_EXPLOSIONS;i++, e++) { - if (explosion[i].alpha <= 0.01f) + if (!e->alpha) { - explosion[i].starttime = cl.time; - explosion[i].time = explosion[i].starttime - 0.1; - explosion[i].alpha = EXPLOSIONFADESTART; - VectorCopy(org, explosion[i].origin); + 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++) { - // calculate start - VectorCopy(explosion[i].origin, explosion[i].vert[j]); - // calculate velocity - dist = noise[explosionnoiseindex[j]] * (1.0f / 255.0f) + 0.5; - 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; } } +#endif } -void R_DrawExplosionCallback(void *calldata1, int calldata2) +#ifdef MAX_EXPLOSIONS +static void R_DrawExplosion_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist) { - int i; - float *c, *v, diff[3], centerdir[3], ifog, alpha, dist; - rmeshbufferinfo_t m; - explosion_t *e; - e = calldata1; - - memset(&m, 0, sizeof(m)); - m.transparent = false; - m.blendfunc1 = GL_SRC_ALPHA; - m.blendfunc2 = GL_ONE; - m.numtriangles = EXPLOSIONTRIS; - m.numverts = EXPLOSIONVERTS; - m.tex[0] = R_GetTexture(explosiontexture); - if (R_Mesh_Draw_GetBuffer(&m, false)) + 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++) { - memcpy(m.index, explosiontris, m.numtriangles * sizeof(int[3])); - for (i = 0, v = m.vertex;i < m.numverts;i++, v += 4) - { - v[0] = e->vert[i][0]; - v[1] = e->vert[i][1]; - v[2] = e->vert[i][2]; - } - memcpy(m.texcoords[0], explosiontexcoords, m.numverts * sizeof(float[2])); - alpha = e->alpha; - VectorSubtract(r_origin, e->origin, centerdir); - VectorNormalizeFast(centerdir); - if (fogenabled) - { - for (i = 0, c = m.color;i < EXPLOSIONVERTS;i++, c += 4) - { - VectorSubtract(e->vert[i], e->origin, diff); - VectorNormalizeFast(diff); - dist = (DotProduct(diff, centerdir) * 6.0f - 4.0f) * alpha; - if (dist > 0) - { - // use inverse fog alpha - VectorSubtract(e->vert[i], r_origin, diff); - ifog = 1 - exp(fogdensity/DotProduct(diff,diff)); - dist = dist * ifog; - if (dist < 0) - dist = 0; - else - dist *= m.colorscale; - } - else - dist = 0; - c[0] = c[1] = c[2] = dist; - c[3] = 1; - } - } - else - { - for (i = 0, c = m.color;i < EXPLOSIONVERTS;i++, c += 4) - { - VectorSubtract(e->vert[i], e->origin, diff); - VectorNormalizeFast(diff); - dist = (DotProduct(diff, centerdir) * 6.0f - 4.0f) * alpha; - if (dist < 0) - dist = 0; - else - dist *= m.colorscale; - c[0] = c[1] = c[2] = dist; - c[3] = 1; - } - } - R_Mesh_Render(); + 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) +static void R_MoveExplosion(explosion_t *e) { int i; - float dot, frictionscale, end[3], impact[3], normal[3], frametime; + float dot, end[3], frametime; + trace_t trace; frametime = cl.time - e->time; e->time = cl.time; - e->alpha = EXPLOSIONFADESTART - (cl.time - e->starttime) * EXPLOSIONFADERATE; - if (e->alpha <= 0.01f) + e->alpha = e->alpha - (e->fade * frametime); + if (e->alpha < 0 || cl.time > e->endtime) { - e->alpha = -1; + e->alpha = 0; return; } - frictionscale = 1 - frametime; - frictionscale = bound(0, frictionscale, 1); for (i = 0;i < EXPLOSIONVERTS;i++) { if (e->vertvel[i][0] || e->vertvel[i][1] || e->vertvel[i][2]) { - VectorScale(e->vertvel[i], frictionscale, e->vertvel[i]); VectorMA(e->vert[i], frametime, e->vertvel[i], end); - if (r_explosionclip.integer) + if (e->clipping) { - if (CL_TraceLine(e->vert[i], end, impact, normal, 0, true) < 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; - VectorMA(e->vertvel[i], dot, normal, e->vertvel[i]); + dot = -DotProduct(e->vertvel[i], trace.plane.normal); + VectorMA(e->vertvel[i], dot, trace.plane.normal, e->vertvel[i]); } - VectorCopy(impact, e->vert[i]); + VectorCopy(trace.endpos, e->vert[i]); } else VectorCopy(end, e->vert[i]); } } - for (i = 0;i < EXPLOSIONGRID;i++) - VectorCopy(e->vert[i * (EXPLOSIONGRID + 1)], e->vert[i * (EXPLOSIONGRID + 1) + EXPLOSIONGRID]); - memcpy(e->vert[EXPLOSIONGRID * (EXPLOSIONGRID + 1)], e->vert[0], sizeof(float[3]) * (EXPLOSIONGRID + 1)); -} - - -void R_MoveExplosions(void) -{ - int i; - float frametime; - - frametime = cl.time - cl.oldtime; - - for (i = 0;i < MAX_EXPLOSIONS;i++) - if (explosion[i].alpha > 0.01f) - R_MoveExplosion(&explosion[i]); } +#endif void R_DrawExplosions(void) { +#ifdef MAX_EXPLOSIONS int i; if (!r_drawexplosions.integer) return; - for (i = 0;i < MAX_EXPLOSIONS;i++) - if (explosion[i].alpha > 0.01f) - R_MeshQueue_AddTransparent(explosion[i].origin, R_DrawExplosionCallback, &explosion[i], 0); + + for (i = 0;i < numexplosions;i++) + { + if (explosion[i].alpha) + { + 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 }