diff options
Diffstat (limited to 'code/bspc/textures.c')
| -rwxr-xr-x | code/bspc/textures.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/code/bspc/textures.c b/code/bspc/textures.c new file mode 100755 index 0000000..ad6a8f5 --- /dev/null +++ b/code/bspc/textures.c @@ -0,0 +1,228 @@ +/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code 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.
+
+Quake III Arena source code 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 Foobar; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+#include "qbsp.h"
+#include "l_bsp_q2.h"
+
+int nummiptex;
+textureref_t textureref[MAX_MAP_TEXTURES];
+
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int FindMiptex (char *name)
+{
+ int i;
+ char path[1024];
+ miptex_t *mt;
+
+ for (i = 0; i < nummiptex; i++)
+ {
+ if (!strcmp (name, textureref[i].name))
+ {
+ return i;
+ } //end if
+ } //end for
+ if (nummiptex == MAX_MAP_TEXTURES)
+ Error ("MAX_MAP_TEXTURES");
+ strcpy (textureref[i].name, name);
+
+ // load the miptex to get the flags and values
+ sprintf (path, "%stextures/%s.wal", gamedir, name);
+ if (TryLoadFile (path, (void **)&mt) != -1)
+ {
+ textureref[i].value = LittleLong (mt->value);
+ textureref[i].flags = LittleLong (mt->flags);
+ textureref[i].contents = LittleLong (mt->contents);
+ strcpy (textureref[i].animname, mt->animname);
+ FreeMemory(mt);
+ } //end if
+ nummiptex++;
+
+ if (textureref[i].animname[0])
+ FindMiptex (textureref[i].animname);
+
+ return i;
+} //end of the function FindMipTex
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+vec3_t baseaxis[18] =
+{
+{0,0,1}, {1,0,0}, {0,-1,0}, // floor
+{0,0,-1}, {1,0,0}, {0,-1,0}, // ceiling
+{1,0,0}, {0,1,0}, {0,0,-1}, // west wall
+{-1,0,0}, {0,1,0}, {0,0,-1}, // east wall
+{0,1,0}, {1,0,0}, {0,0,-1}, // south wall
+{0,-1,0}, {1,0,0}, {0,0,-1} // north wall
+};
+
+void TextureAxisFromPlane(plane_t *pln, vec3_t xv, vec3_t yv)
+{
+ int bestaxis;
+ vec_t dot,best;
+ int i;
+
+ best = 0;
+ bestaxis = 0;
+
+ for (i=0 ; i<6 ; i++)
+ {
+ dot = DotProduct (pln->normal, baseaxis[i*3]);
+ if (dot > best)
+ {
+ best = dot;
+ bestaxis = i;
+ }
+ }
+
+ VectorCopy (baseaxis[bestaxis*3+1], xv);
+ VectorCopy (baseaxis[bestaxis*3+2], yv);
+} //end of the function TextureAxisFromPlane
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int TexinfoForBrushTexture(plane_t *plane, brush_texture_t *bt, vec3_t origin)
+{
+ vec3_t vecs[2];
+ int sv, tv;
+ vec_t ang, sinv, cosv;
+ vec_t ns, nt;
+ texinfo_t tx, *tc;
+ int i, j, k;
+ float shift[2];
+ brush_texture_t anim;
+ int mt;
+
+ if (!bt->name[0])
+ return 0;
+
+ memset (&tx, 0, sizeof(tx));
+ strcpy (tx.texture, bt->name);
+
+ TextureAxisFromPlane(plane, vecs[0], vecs[1]);
+
+ shift[0] = DotProduct (origin, vecs[0]);
+ shift[1] = DotProduct (origin, vecs[1]);
+
+ if (!bt->scale[0])
+ bt->scale[0] = 1;
+ if (!bt->scale[1])
+ bt->scale[1] = 1;
+
+
+// rotate axis
+ if (bt->rotate == 0)
+ { sinv = 0 ; cosv = 1; }
+ else if (bt->rotate == 90)
+ { sinv = 1 ; cosv = 0; }
+ else if (bt->rotate == 180)
+ { sinv = 0 ; cosv = -1; }
+ else if (bt->rotate == 270)
+ { sinv = -1 ; cosv = 0; }
+ else
+ {
+ ang = bt->rotate / 180 * Q_PI;
+ sinv = sin(ang);
+ cosv = cos(ang);
+ }
+
+ if (vecs[0][0])
+ sv = 0;
+ else if (vecs[0][1])
+ sv = 1;
+ else
+ sv = 2;
+
+ if (vecs[1][0])
+ tv = 0;
+ else if (vecs[1][1])
+ tv = 1;
+ else
+ tv = 2;
+
+ for (i=0 ; i<2 ; i++)
+ {
+ ns = cosv * vecs[i][sv] - sinv * vecs[i][tv];
+ nt = sinv * vecs[i][sv] + cosv * vecs[i][tv];
+ vecs[i][sv] = ns;
+ vecs[i][tv] = nt;
+ }
+
+ for (i=0 ; i<2 ; i++)
+ for (j=0 ; j<3 ; j++)
+ tx.vecs[i][j] = vecs[i][j] / bt->scale[i];
+
+ tx.vecs[0][3] = bt->shift[0] + shift[0];
+ tx.vecs[1][3] = bt->shift[1] + shift[1];
+ tx.flags = bt->flags;
+ tx.value = bt->value;
+
+ //
+ // find the texinfo
+ //
+ tc = texinfo;
+ for (i=0 ; i<numtexinfo ; i++, tc++)
+ {
+ if (tc->flags != tx.flags)
+ continue;
+ if (tc->value != tx.value)
+ continue;
+ for (j=0 ; j<2 ; j++)
+ {
+ if (strcmp (tc->texture, tx.texture))
+ goto skip;
+ for (k=0 ; k<4 ; k++)
+ {
+ if (tc->vecs[j][k] != tx.vecs[j][k])
+ goto skip;
+ }
+ }
+ return i;
+skip:;
+ }
+ *tc = tx;
+ numtexinfo++;
+
+ // load the next animation
+ mt = FindMiptex (bt->name);
+ if (textureref[mt].animname[0])
+ {
+ anim = *bt;
+ strcpy (anim.name, textureref[mt].animname);
+ tc->nexttexinfo = TexinfoForBrushTexture (plane, &anim, origin);
+ }
+ else
+ tc->nexttexinfo = -1;
+
+
+ return i;
+} //end of the function TexinfoForBrushTexture
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