345 lines
7.3 KiB
C
345 lines
7.3 KiB
C
/***
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*
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* Copyright (c) 1998, Valve LLC. All rights reserved.
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*
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* This product contains software technology licensed from Id
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* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
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* All Rights Reserved.
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*
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****/
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#include "csg.h"
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int nummapbrushes;
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brush_t mapbrushes[MAX_MAP_BRUSHES];
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int numbrushsides;
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side_t brushsides[MAX_MAP_SIDES];
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int g_nMapFileVersion;
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/*
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==================
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textureAxisFromPlane
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==================
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*/
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vec3_t baseaxis[18] =
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{
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{0,0,1}, {1,0,0}, {0,-1,0}, // floor
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{0,0,-1}, {1,0,0}, {0,-1,0}, // ceiling
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{1,0,0}, {0,1,0}, {0,0,-1}, // west wall
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{-1,0,0}, {0,1,0}, {0,0,-1}, // east wall
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{0,1,0}, {1,0,0}, {0,0,-1}, // south wall
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{0,-1,0}, {1,0,0}, {0,0,-1} // north wall
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};
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void TextureAxisFromPlane(plane_t *pln, vec3_t xv, vec3_t yv)
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{
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int bestaxis;
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vec_t dot,best;
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int i;
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best = 0;
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bestaxis = 0;
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for (i=0 ; i<6 ; i++)
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{
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dot = DotProduct (pln->normal, baseaxis[i*3]);
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if (dot > best)
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{
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best = dot;
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bestaxis = i;
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}
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}
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VectorCopy (baseaxis[bestaxis*3+1], xv);
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VectorCopy (baseaxis[bestaxis*3+2], yv);
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}
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/*
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=================
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ParseBrush
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=================
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*/
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void ParseBrush (entity_t *mapent)
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{
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brush_t *b;
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bface_t *f, *f2;
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int planepts[3][3];
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vec3_t t1, t2, t3;
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int i,j;
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vec_t d;
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int planenum;
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side_t *side;
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int contents;
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if (nummapbrushes == MAX_MAP_BRUSHES)
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Error ("nummapbrushes == MAX_MAP_BRUSHES");
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b = &mapbrushes[nummapbrushes];
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nummapbrushes++;
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b->firstside = numbrushsides;
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b->entitynum = num_entities-1;
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b->brushnum = nummapbrushes - mapent->firstbrush - 1;
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mapent->numbrushes++;
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do
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{
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if (!GetToken (true))
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break;
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if (!strcmp (token, "}") )
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break;
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if (numbrushsides == MAX_MAP_SIDES)
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Error ("numbrushsides == MAX_MAP_SIDES");
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side = &brushsides[numbrushsides];
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numbrushsides++;
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b->numsides++;
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// read the three point plane definition
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for (i=0 ; i<3 ; i++)
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{
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if (i != 0)
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GetToken (true);
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if (strcmp (token, "(") )
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Error ("parsing brush");
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for (j=0 ; j<3 ; j++)
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{
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GetToken (false);
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side->planepts[i][j] = atoi(token);
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}
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GetToken (false);
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if (strcmp (token, ")") )
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Error ("parsing brush");
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}
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// read the texturedef
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GetToken (false);
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strcpy (side->td.name, token);
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if (g_nMapFileVersion < 220)
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{
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GetToken (false);
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side->td.shift[0] = atof(token);
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GetToken (false);
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side->td.shift[1] = atof(token);
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GetToken (false);
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side->td.rotate = atof(token);
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}
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else
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{
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// texture U axis
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GetToken (false);
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if (strcmp (token, "["))
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{
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Error("missing '[ in texturedef");
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}
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GetToken (false);
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side->td.UAxis[0] = atof(token);
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GetToken (false);
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side->td.UAxis[1] = atof(token);
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GetToken (false);
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side->td.UAxis[2] = atof(token);
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GetToken (false);
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side->td.shift[0] = atof(token);
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GetToken (false);
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if (strcmp (token, "]"))
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{
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Error("missing ']' in texturedef");
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}
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// texture V axis
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GetToken (false);
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if (strcmp (token, "["))
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{
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Error("missing '[ in texturedef");
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}
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GetToken (false);
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side->td.VAxis[0] = atof(token);
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GetToken (false);
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side->td.VAxis[1] = atof(token);
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GetToken (false);
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side->td.VAxis[2] = atof(token);
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GetToken (false);
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side->td.shift[1] = atof(token);
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GetToken (false);
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if (strcmp (token, "]"))
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{
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Error("missing ']' in texturedef");
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}
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// Texture rotation is implicit in U/V axes.
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GetToken(false);
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side->td.rotate = 0;
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}
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// texure scale
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GetToken (false);
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side->td.scale[0] = atof(token);
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GetToken (false);
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side->td.scale[1] = atof(token);
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} while (1);
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b->contents = contents = BrushContents (b);
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//
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// origin brushes are removed, but they set
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// the rotation origin for the rest of the brushes
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// in the entity
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//
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if (contents == CONTENTS_ORIGIN)
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{
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char string[32];
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vec3_t origin;
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b->contents = CONTENTS_SOLID;
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CreateBrush (mapent->firstbrush + b->brushnum); // to get sizes
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b->contents = contents;
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for (i = 0; i < NUM_HULLS; i++) {
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b->hulls[i].faces = NULL;
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}
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if (b->entitynum == 0)
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{
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printf ("Entity %i, Brush %i: origin brushes not allowed in world"
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, b->entitynum, b->brushnum);
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return;
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}
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VectorAdd (b->hulls[0].mins, b->hulls[0].maxs, origin);
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VectorScale (origin, 0.5, origin);
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sprintf (string, "%i %i %i", (int)origin[0], (int)origin[1], (int)origin[2]);
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SetKeyValue (&entities[b->entitynum], "origin", string);
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}
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}
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/*
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================
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ParseMapEntity
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================
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*/
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qboolean ParseMapEntity (void)
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{
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entity_t *mapent;
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epair_t *e;
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if (!GetToken (true))
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return false;
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if (strcmp (token, "{") )
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Error ("ParseEntity: { not found");
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if (num_entities == MAX_MAP_ENTITIES)
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Error ("num_entities == MAX_MAP_ENTITIES");
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mapent = &entities[num_entities];
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num_entities++;
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mapent->firstbrush = nummapbrushes;
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mapent->numbrushes = 0;
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do
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{
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if (!GetToken (true))
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Error ("ParseEntity: EOF without closing brace");
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if (!strcmp (token, "}") )
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break;
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if (!strcmp (token, "{") )
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ParseBrush (mapent);
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else
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{
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e = ParseEpair ();
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if (!strcmp(e->key, "mapversion"))
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{
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g_nMapFileVersion = atoi(e->value);
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}
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e->next = mapent->epairs;
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mapent->epairs = e;
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}
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} while (1);
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if ( mapent->numbrushes == 1 && mapbrushes[mapent->firstbrush].contents == CONTENTS_ORIGIN )
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{
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brushhull_t *hull = mapbrushes[mapent->firstbrush].hulls;
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Error("Found an entity with ONLY an origin brush near(%.0f,%.0f,%.0f)!\n",
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hull->mins[0], hull->mins[1], hull->mins[2] );
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}
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GetVectorForKey (mapent, "origin", mapent->origin);
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// group entities are just for editor convenience
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// toss all brushes into the world entity
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if ( !onlyents && !strcmp ("func_group", ValueForKey (mapent, "classname")))
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{
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// this is pretty gross, because the brushes are expected to be
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// in linear order for each entity
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brush_t *temp;
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int newbrushes;
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int worldbrushes;
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int i;
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newbrushes = mapent->numbrushes;
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worldbrushes = entities[0].numbrushes;
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temp = malloc(newbrushes*sizeof(brush_t));
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memcpy (temp, mapbrushes + mapent->firstbrush, newbrushes*sizeof(brush_t));
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for (i=0 ; i<newbrushes ; i++)
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temp[i].entitynum = 0;
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// make space to move the brushes (overlapped copy)
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memmove (mapbrushes + worldbrushes + newbrushes,
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mapbrushes + worldbrushes,
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sizeof(brush_t) * (nummapbrushes - worldbrushes - newbrushes) );
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// copy the new brushes down
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memcpy (mapbrushes + worldbrushes, temp, sizeof(brush_t) * newbrushes);
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// fix up indexes
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num_entities--;
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entities[0].numbrushes += newbrushes;
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for (i=1 ; i<num_entities ; i++)
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entities[i].firstbrush += newbrushes;
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memset (mapent,0, sizeof(*mapent));
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free (temp);
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}
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return true;
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}
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/*
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================
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LoadMapFile
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================
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*/
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void LoadMapFile (char *filename)
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{
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LoadScriptFile (filename);
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num_entities = 0;
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while (ParseMapEntity ())
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{
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}
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qprintf ("Load map:%s\n", filename);
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qprintf ("%5i brushes\n", nummapbrushes);
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qprintf ("%5i entities\n", num_entities);
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}
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