src/engine/world.h

   1
   2 enum                            // hardcoded texture numbers
   3 {
   4     DEFAULT_SKY = 0,
   5     DEFAULT_LIQUID,
   6     DEFAULT_WALL,
   7     DEFAULT_FLOOR,
   8     DEFAULT_CEIL
   9 };
  10
  11 #define MAPVERSION 24           // bump if map format changes, see worldio.cpp
  12
  13 struct header                   // map file format header
  14 {
  15     char head[4];               // "OCTA"
  16     int version;                // any >8bit quantity is little endian
  17     int headersize;             // sizeof(header)
  18     int worldsize;
  19     int numents;
  20     int waterlevel;
  21     int lightmaps;
  22     int mapprec, maple, mapllod;
  23     uchar ambient;
  24     uchar watercolour[3];
  25     uchar mapwlod;
  26     uchar lerpangle, lerpsubdiv, lerpsubdivsize;
  27     uchar mapbe;
  28     uchar skylight[3];
  29     uchar lavacolour[3];
  30     uchar reserved[1+12];
  31     char maptitle[128];
  32 };
  33
  34 enum                            // cube empty-space materials
  35 {
  36     MAT_AIR = 0,                // the default, fill the empty space with air
  37     MAT_WATER,                  // fill with water, showing waves at the surface
  38     MAT_CLIP,                   // collisions always treat cube as solid
  39     MAT_GLASS,                  // behaves like clip but is blended blueish
  40     MAT_NOCLIP,                 // collisions always treat cube as empty
  41     MAT_LAVA,                   // fill with lava
  42     MAT_AICLIP,                 // clip monsters only
  43     MAT_EDIT                    // basis for the edit volumes of the above materials
  44 };
  45
  46 #define WATER_AMPLITUDE 0.8f
  47 #define WATER_OFFSET 1.1f
  48
  49 enum
  50 {
  51     MATSURF_NOT_VISIBLE = 0,
  52     MATSURF_VISIBLE,
  53     MATSURF_EDIT_ONLY
  54 };
  55
  56 #define isliquid(mat) ((mat)==MAT_WATER || (mat)==MAT_LAVA)
  57 #define isclipped(mat) ((mat) >= MAT_CLIP && (mat) < MAT_NOCLIP)
  58
  59 // VVEC_FRAC must be between 0..3
  60 #define VVEC_FRAC 1
  61 #define VVEC_INT (15-VVEC_FRAC)
  62 #define VVEC_BITS (VVEC_INT + VVEC_FRAC)
  63
  64 #define VVEC_INT_MASK     ((1<<(VVEC_INT-1))-1)
  65 #define VVEC_INT_COORD(n) (((n)&VVEC_INT_MASK)<<VVEC_FRAC)
  66
  67 struct vvec : svec
  68 {
  69     vvec() {}
  70     vvec(short x, short y, short z) : svec(x, y, z) {}
  71     vvec(int x, int y, int z) : svec(VVEC_INT_COORD(x), VVEC_INT_COORD(y), VVEC_INT_COORD(z)) {}
  72     vvec(const int *i) : svec(VVEC_INT_COORD(i[0]), VVEC_INT_COORD(i[1]), VVEC_INT_COORD(i[2])) {}
  73
  74     void mask(int f) { f <<= VVEC_FRAC; f |= (1<<VVEC_FRAC)-1; x &= f; y &= f; z &= f; }
  75
  76     ivec toivec() const                    { return ivec(x, y, z).div(1<<VVEC_FRAC); }
  77     ivec toivec(int x, int y, int z) const { ivec t = toivec(); t.x += x&~VVEC_INT_MASK; t.y += y&~VVEC_INT_MASK; t.z += z&~VVEC_INT_MASK; return t; }
  78     ivec toivec(const ivec &o) const       { return toivec(o.x, o.y, o.z); }
  79
  80     vec tovec() const                    { return vec(x, y, z).div(1<<VVEC_FRAC); }
  81     vec tovec(int x, int y, int z) const { vec t = tovec(); t.x += x&~VVEC_INT_MASK; t.y += y&~VVEC_INT_MASK; t.z += z&~VVEC_INT_MASK; return t; }
  82     vec tovec(const ivec &o) const       { return tovec(o.x, o.y, o.z); }
  83 };
  84
  85 struct vertexffc : vvec {};
  86 struct fvertexffc : vec {};
  87 struct vertexff : vertexffc { short u, v; };
  88 struct fvertexff : fvertexffc { short u, v; };
  89 struct vertex : vertexff { bvec n; };
  90 struct fvertex : fvertexff { bvec n; };
  91
  92 extern int floatvtx;
  93
  94 #define VTXSIZE \
  95     (renderpath==R_FIXEDFUNCTION ? \
  96         (floatvtx ? (nolights ? sizeof(fvertexffc) : sizeof(fvertexff)) : (nolights ? sizeof(vertexffc) : sizeof(vertexff))) : \
  97         (floatvtx ? sizeof(fvertex) : sizeof(vertex)))
  98