335 lines
7.7 KiB
C
335 lines
7.7 KiB
C
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/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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RScript loading, parsing, and rendering.
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Code syntax is similar to that of shaders
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No reference to any shader material was used whilst
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making this code, hence the weak and buggy state of it :)
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*/
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#include "quakedef.h"
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#include "gl_rscript.h"
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#include "bsp_render.h"
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typedef struct
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{
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int texnum;
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float sl, tl, sh, th;
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} glpic_t;
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extern int lightmap_textures;
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extern glpoly_t *lightmap_polys[MAX_LIGHTMAPS];
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extern qboolean lightmap_modified[MAX_LIGHTMAPS];
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extern glRect_t lightmap_rectchange[MAX_LIGHTMAPS];
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extern byte lightmaps[4*MAX_LIGHTMAPS*BLOCK_WIDTH*BLOCK_HEIGHT];
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int RS_AnimTexture(int rs)
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{
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double rt;
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if (host_time < rscripts[rs].anim.lasttime)
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rscripts[rs].anim.lasttime = 0;
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rt = host_time - rscripts[rs].anim.lasttime;
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if (rt < rscripts[rs].flags.animtime)
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return rscripts[rs].anim.texnum[rscripts[rs].anim.current];
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if (rt > rscripts[rs].flags.animtime)
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{
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rscripts[rs].anim.current += (rt / rscripts[rs].flags.animtime);
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while (rscripts[rs].anim.current >= rscripts[rs].anim.num)
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rscripts[rs].anim.current = rscripts[rs].anim.current - rscripts[rs].anim.num;
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rscripts[rs].anim.lasttime += rscripts[rs].flags.animtime;
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}
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return rscripts[rs].anim.texnum[rscripts[rs].anim.current];
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}
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float MakeMapXCoord(float x, int rs)
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{
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float txm = 0;
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if (rs > MAX_RS)
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rs = 0;
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if (!rs)
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return x;
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if (rscripts[rs].usescroll)
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{
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txm=realtime*rscripts[rs].scroll.xspeed;
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while (txm > 1 && (1-txm) > 0) txm=1-txm;
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while (txm < 0 && (1+txm) > 1) txm=1+txm;
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}
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if (rscripts[rs].useturb)
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{
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float power, movediv;
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power = rscripts[rs].turb.power * 0.05;
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movediv = rscripts[rs].turb.movediv;
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x += sin((x*0.1+realtime) * power) * sin((x*0.1+realtime))/movediv;
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}
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x += txm;
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return x*rscripts[rs].texscale;
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}
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float MakeMapYCoord(float y, int rs)
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{
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float tym = 0;
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if (rs > MAX_RS)
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rs=0;
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if (!rs)
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return y;
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if (rscripts[rs].usescroll)
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{
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tym=realtime*rscripts[rs].scroll.yspeed;
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while (tym > 1 && (1-tym) > 0) tym=1-tym;
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while (tym < 0 && (1+tym) > 1) tym=1+tym;
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}
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if (rscripts[rs].useturb)
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{
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float power, movediv;
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movediv = rscripts[rs].turb.movediv;
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power = rscripts[rs].turb.power *0.05;
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y += sin((y*0.1+realtime) * power) * sin((y*0.1+realtime))/movediv;
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}
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y += tym;
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return y*rscripts[rs].texscale;
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}
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void RS_DrawPic (int x, int y, qpic_t *pic)
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{
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int rs;
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glpic_t *gl;
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qboolean stage;
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float tx,ty;
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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gl = (glpic_t *)pic->data;
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stage = true;
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rs = pic->rs;
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while (stage)
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{
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if (rscripts[rs].flags.blendfunc)
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glColor4f(1,1,1,rscripts[rs].flags.alpha);
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if (rscripts[rs].useanim)
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glBindTexture (GL_TEXTURE_2D, RS_AnimTexture(rs));
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else if (rscripts[rs].texnum)
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glBindTexture (GL_TEXTURE_2D, rscripts[rs].texnum);
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else
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glBindTexture (GL_TEXTURE_2D, gl->texnum);
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glBegin (GL_QUADS);
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tx = MakeMapXCoord(gl->sl,rs);
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ty = MakeMapYCoord(gl->tl,rs);
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glTexCoord2f (tx, ty);
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glVertex2f (x, y);
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tx = MakeMapXCoord(gl->sh,rs);
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ty = MakeMapYCoord(gl->tl,rs);
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glTexCoord2f (tx, ty);
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glVertex2f (x+pic->width, y);
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tx = MakeMapXCoord(gl->sh,rs);
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ty = MakeMapYCoord(gl->th,rs);
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glTexCoord2f (tx, ty);
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glVertex2f (x+pic->width, y+pic->height);
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tx = MakeMapXCoord(gl->sl,rs);
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ty = MakeMapYCoord(gl->th,rs);
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glTexCoord2f (tx, ty);
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glVertex2f (x, y+pic->height);
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glEnd ();
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if (rscripts[rs].flags.blendfunc)
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glColor4f(1,1,1,1);
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if (rscripts[rs].nextstage)
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rs = rscripts[rs].nextstage;
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else
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stage = false;
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}
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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}
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void FinishScripts(int i)
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{
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int c;
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if (!strcmp(rscripts[i].scriptname,""))
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return;
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if (rscripts[i].nextname)
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rscripts[i].nextstage = GetRSForName(rscripts[i].nextname);
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if (!strcmp(rscripts[i].texname,""))
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strcpy(rscripts[i].texname,rscripts[i].scriptname);
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if (rscripts[i].anim.num)
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{
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for (c=0;c<rscripts[i].anim.num;c++)
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rscripts[i].anim.texnum[c] = loadtextureimage(rscripts[i].anim.name[c].name, false, true);
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}
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rscripts[i].texnum = loadtextureimage(rscripts[i].texname, false, false);
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}
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int GetRSForName(char *name)
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{
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int i;
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for (i=0;i<MAX_RS;i++)
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{
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if (!_stricmp(name,rscripts[i].scriptname))
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{
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FinishScripts(i);
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return i;
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}
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}
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return 0;
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}
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void InitRenderScripts()
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{
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FILE *f;
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char ch[1024], sp1[1024], sp2[1024];
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float fp1, fp2, fp3, fp4;
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int inscript = 0, num = 1, i;
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COM_FOpenFile("scripts/textures.txt", &f);
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if (!f || feof(f))
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{
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Con_Printf(" &f9000 *Failed to load Rscript &r\n");
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return;
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}
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ch[0] = 0;
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sp1[0] = 0;
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sp2[0] = 0;
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Con_Printf(" *Loaded Rscript\n");
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do
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{
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fscanf(f,"%s",ch);
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if (inscript)
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{
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if (!_stricmp(ch,"turb"))
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{ // turb effect
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fscanf(f,"%f",&fp1); fscanf(f,"%f",&fp2);
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rscripts[num].turb.power = fp1;
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rscripts[num].turb.movediv = fp2;
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rscripts[num].useturb = true;
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}
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else if (!_stricmp(ch,"turbvert"))
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{ // vertex turb effect
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fscanf(f,"%f",&fp1); fscanf(f,"%f",&fp2); fscanf(f,"%f",&fp3); fscanf(f,"%f",&fp4);
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rscripts[num].vturb.power = fp1;
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rscripts[num].usevturb = true;
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}
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else if (!_stricmp(ch,"scroll"))
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{ // scrolling texture
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fscanf(f,"%f",&fp1); fscanf(f,"%f",&fp2);
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rscripts[num].scroll.xspeed = fp1;
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rscripts[num].scroll.yspeed = fp2;
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rscripts[num].usescroll = true;
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}
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else if (!_stricmp(ch,"stage"))
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{ // next stage
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fscanf(f,"%s",sp1);
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strcpy(rscripts[num].nextname, sp1);
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}
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else if (!_stricmp(ch,"map"))
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{ // texture
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fscanf(f,"%s",sp1);
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strcpy(rscripts[num].texname, sp1);
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rscripts[num].texexist = true;
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}
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else if (!_stricmp(ch,"anim"))
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{ // anim map
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fscanf(f,"%f",&fp1);
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rscripts[num].anim.num = fp1;
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for (i=0; i<fp1; i++)
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{
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if (i > MAX_ANIM_FRAMES-1)
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continue;
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fscanf(f,"%s",sp1);
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strcpy(rscripts[num].anim.name[i].name,sp1);
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}
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rscripts[num].useanim=true;
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}
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else if (!_stricmp(ch,"set"))
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{ // set texture flags
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fscanf(f,"%s",sp1); fscanf(f,"%f",&fp1);
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if (!_stricmp(sp1, "alpha")) // alpha amount
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rscripts[num].flags.alpha = fp1;
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else if (!_stricmp(sp1, "blendfunc")) // use blendfunc?
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rscripts[num].flags.blendfunc = fp1;
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else if (!_stricmp(sp1, "texscale")) // texture scaling
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rscripts[num].texscale = fp1;
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else if (!_stricmp(sp1, "animtime")) // animation timing (ms)
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rscripts[num].flags.animtime = fp1;
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}
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else if (!_stricmp(ch,"}"))
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{
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inscript=0;
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num++;
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}
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}
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else
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{
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if (_stricmp(ch,"{"))
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{
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strcpy(rscripts[num].scriptname,ch);
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}
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else
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{
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rscripts[num].flags.alpha = 1;
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rscripts[num].texscale = 1;
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rscripts[num].flags.animtime = 1;
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inscript = 1;
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}
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}
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} while (!feof(f));
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fclose(f);
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}
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