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https://github.com/JGRennison/OpenTTD-patches.git
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(svn r2515) -Codechange: Removed a good deal of magic sprite numbers in the rail drawing code, and placed neatly into arrays and enums. This also makes way to implement more railtypes without having to do tons of ugly hacks.
This commit is contained in:
celestar
parent
e675794812
commit
d07e1a875e
109
rail_cmd.c
109
rail_cmd.c
@ -1326,10 +1326,88 @@ static void DrawSpecialBuilding(uint32 image, uint32 tracktype_offs,
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AddSortableSpriteToDraw(image, ti->x + x, ti->y + y, xsize, ysize, zsize, ti->z + z);
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}
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/* Arrangement of the sprites
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* 1) Single track in Y direction
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* 2) Northern and southern trackbits set
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* 3) "Basis" for 3-way switch
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* 4) Single rail in Y direction without ground sprite
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* 5) as above, X direction
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* 6) as above, nortern track
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* 7) as above, southern track
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* 8) as above, eastern track
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* 9) as above, western track
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* 10) the offset of the snow sprites
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*/
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static SpriteID RailSpriteIDs[] = {
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SPR_RAIL_TRACK_Y,
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SPR_RAIL_TRACK_N_S,
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SPR_RAIL_TRACK_BASE,
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SPR_RAIL_SINGLE_Y,
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SPR_RAIL_SINGLE_X,
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SPR_RAIL_SINGLE_NORTH,
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SPR_RAIL_SINGLE_SOUTH,
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SPR_RAIL_SINGLE_EAST,
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SPR_RAIL_SINGLE_WEST,
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SPR_RAIL_SNOW_OFFSET,
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};
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static SpriteID MonoSpriteIDs[] = {
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SPR_MONO_TRACK_Y,
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SPR_MONO_TRACK_N_S,
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SPR_MONO_TRACK_BASE,
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SPR_MONO_SINGLE_Y,
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SPR_MONO_SINGLE_X,
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SPR_MONO_SINGLE_NORTH,
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SPR_MONO_SINGLE_SOUTH,
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SPR_MONO_SINGLE_EAST,
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SPR_MONO_SINGLE_WEST,
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SPR_MONO_SNOW_OFFSET,
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};
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static SpriteID MaglevSpriteIDs[] = {
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SPR_MGLV_TRACK_Y,
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SPR_MGLV_TRACK_N_S,
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SPR_MGLV_TRACK_BASE,
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SPR_MGLV_SINGLE_Y,
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SPR_MGLV_SINGLE_X,
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SPR_MGLV_SINGLE_NORTH,
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SPR_MGLV_SINGLE_SOUTH,
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SPR_MGLV_SINGLE_EAST,
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SPR_MGLV_SINGLE_WEST,
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SPR_MGLV_SNOW_OFFSET,
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};
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/** Sprite reference enum */
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enum {
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TRACK_Y,
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TRACK_N_S,
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TRACK_BASE,
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SINGLE_Y,
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SINGLE_X,
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SINGLE_NORTH,
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SINGLE_SOUTH,
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SINGLE_EAST,
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SINGLE_WEST,
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SNOW_OFFSET,
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};
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/** Contains the pointers to the arrays *SpriteIDs.
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* There, all the Sprites are recorded that the
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* Track Draw system requireds. Note: Pointer arrangement
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* must match the tracktype number
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*/
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static SpriteID *TrackSpriteIDs[RAILTYPE_END] = {
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RailSpriteIDs,
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MonoSpriteIDs,
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MaglevSpriteIDs
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};
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static void DrawTile_Track(TileInfo *ti)
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{
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uint32 tracktype_offs, image;
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uint32 tracktype_offs;
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byte m5;
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SpriteID *TrackSet = TrackSpriteIDs[GetRailType(ti->tile)];
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uint32 image; //XXX ok why the hell is SpriteID 16 bit when all the drawing routines need 32?
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_drawtile_track_palette = SPRITE_PALETTE(PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile)));
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@ -1344,7 +1422,7 @@ static void DrawTile_Track(TileInfo *ti)
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special = false;
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// select the sprite to use based on the map5 byte.
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(image = 0x3F3, m5 == TRACK_BIT_DIAG2) ||
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(image = TrackSet[TRACK_Y], m5 == TRACK_BIT_DIAG2) ||
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(image++, m5 == TRACK_BIT_DIAG1) ||
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(image++, m5 == TRACK_BIT_UPPER) ||
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(image++, m5 == TRACK_BIT_LOWER) ||
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@ -1352,12 +1430,12 @@ static void DrawTile_Track(TileInfo *ti)
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(image++, m5 == TRACK_BIT_LEFT) ||
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(image++, m5 == (TRACK_BIT_DIAG1|TRACK_BIT_DIAG2)) ||
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(image = 0x40B, m5 == (TRACK_BIT_UPPER|TRACK_BIT_LOWER)) ||
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(image = TrackSet[TRACK_N_S], m5 == (TRACK_BIT_UPPER|TRACK_BIT_LOWER)) ||
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(image++, m5 == (TRACK_BIT_LEFT|TRACK_BIT_RIGHT)) ||
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(special=true, false) ||
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(image = 0x3FA, !(m5 & (TRACK_BIT_RIGHT|TRACK_BIT_UPPER|TRACK_BIT_DIAG1))) ||
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(image = TrackSet[TRACK_BASE], !(m5 & (TRACK_BIT_RIGHT|TRACK_BIT_UPPER|TRACK_BIT_DIAG1))) ||
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(image++, !(m5 & (TRACK_BIT_LEFT|TRACK_BIT_LOWER|TRACK_BIT_DIAG1))) ||
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(image++, !(m5 & (TRACK_BIT_LEFT|TRACK_BIT_UPPER|TRACK_BIT_DIAG2))) ||
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(image++, !(m5 & (TRACK_BIT_RIGHT|TRACK_BIT_LOWER|TRACK_BIT_DIAG2))) ||
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@ -1368,23 +1446,24 @@ static void DrawTile_Track(TileInfo *ti)
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if (f) DrawFoundation(ti, f);
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// default sloped sprites..
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if (ti->tileh != 0) image = _track_sloped_sprites[ti->tileh - 1] + 0x3F3;
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if (ti->tileh != 0) image = _track_sloped_sprites[ti->tileh - 1] + TrackSet[TRACK_Y];
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}
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if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_BROWN)
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if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_BROWN) {
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image = (image & 0xFFFF) | 0x3178000; // use a brown palette
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else if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_ICE_DESERT)
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image += 26;
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} else if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_ICE_DESERT) {
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image += TrackSet[SNOW_OFFSET];
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}
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DrawGroundSprite(image + tracktype_offs);
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DrawGroundSprite(image);
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if (special) {
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if (m5 & TRACK_BIT_DIAG1) DrawGroundSprite(0x3ED + tracktype_offs);
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if (m5 & TRACK_BIT_DIAG2) DrawGroundSprite(0x3EE + tracktype_offs);
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if (m5 & TRACK_BIT_UPPER) DrawGroundSprite(0x3EF + tracktype_offs);
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if (m5 & TRACK_BIT_LOWER) DrawGroundSprite(0x3F0 + tracktype_offs);
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if (m5 & TRACK_BIT_LEFT) DrawGroundSprite(0x3F2 + tracktype_offs);
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if (m5 & TRACK_BIT_RIGHT) DrawGroundSprite(0x3F1 + tracktype_offs);
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if (m5 & TRACK_BIT_DIAG1) DrawGroundSprite(TrackSet[SINGLE_Y]);
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if (m5 & TRACK_BIT_DIAG2) DrawGroundSprite(TrackSet[SINGLE_X]);
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if (m5 & TRACK_BIT_UPPER) DrawGroundSprite(TrackSet[SINGLE_NORTH]);
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if (m5 & TRACK_BIT_LOWER) DrawGroundSprite(TrackSet[SINGLE_SOUTH]);
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if (m5 & TRACK_BIT_LEFT) DrawGroundSprite(TrackSet[SINGLE_WEST]);
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if (m5 & TRACK_BIT_RIGHT) DrawGroundSprite(TrackSet[SINGLE_EAST]);
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}
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if (_display_opt & DO_FULL_DETAIL) {
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@ -112,8 +112,20 @@ enum Sprites {
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SPR_BOUGHT_LAND = 4790,
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/* sprites for rail and rail stations*/
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SPR_RAIL_SNOW_OFFSET = 26,
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SPR_MONO_SNOW_OFFSET = 26,
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SPR_MGLV_SNOW_OFFSET = 26,
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SPR_RAIL_SINGLE_Y = 1005,
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SPR_RAIL_SINGLE_X = 1006,
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SPR_RAIL_SINGLE_NORTH = 1007,
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SPR_RAIL_SINGLE_SOUTH = 1008,
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SPR_RAIL_SINGLE_EAST = 1009,
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SPR_RAIL_SINGLE_WEST = 1010,
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SPR_RAIL_TRACK_Y = 1011,
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SPR_RAIL_TRACK_X = 1012,
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SPR_RAIL_TRACK_BASE = 1018,
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SPR_RAIL_TRACK_N_S = 1035,
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SPR_RAIL_TRACK_Y_SNOW = 1037,
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SPR_RAIL_TRACK_X_SNOW = 1038,
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SPR_RAIL_DEPOT_SE_1 = 1063,
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@ -140,6 +152,24 @@ enum Sprites {
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SPR_RAIL_ROOF_GLASS_Y_TILE_A = 1084,
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SPR_RAIL_ROOF_GLASS_X_TILE_B = 1085, //second half of the roof glass
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SPR_RAIL_ROOF_GLASS_Y_TILE_B = 1086,
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SPR_MONO_SINGLE_Y = 1087,
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SPR_MONO_SINGLE_X = 1088,
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SPR_MONO_SINGLE_NORTH = 1089,
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SPR_MONO_SINGLE_SOUTH = 1090,
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SPR_MONO_SINGLE_EAST = 1091,
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SPR_MONO_SINGLE_WEST = 1092,
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SPR_MONO_TRACK_Y = 1093,
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SPR_MONO_TRACK_BASE = 1100,
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SPR_MONO_TRACK_N_S = 1117,
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SPR_MGLV_SINGLE_Y = 1169,
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SPR_MGLV_SINGLE_X = 1170,
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SPR_MGLV_SINGLE_NORTH = 1171,
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SPR_MGLV_SINGLE_SOUTH = 1172,
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SPR_MGLV_SINGLE_EAST = 1173,
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SPR_MGLV_SINGLE_WEST = 1174,
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SPR_MGLV_TRACK_Y = 1175,
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SPR_MGLV_TRACK_BASE = 1182,
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SPR_MGLV_TRACK_N_S = 1199,
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SPR_WAYPOINT_X_1 = SPR_OPENTTD_BASE + 18,
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SPR_WAYPOINT_X_2 = SPR_OPENTTD_BASE + 19,
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SPR_WAYPOINT_Y_1 = SPR_OPENTTD_BASE + 20,
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