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(svn r3889) Change a part of the bridge drawing code to make it more comprehensible and add the needed accessors

This commit is contained in:
tron 2006-03-15 17:27:15 +00:00
parent dcf6c85bf2
commit f262ae6c8b
3 changed files with 32 additions and 23 deletions
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17
bridge_map.h
View File

@ -28,6 +28,23 @@ static inline DiagDirection GetBridgeRampDirection(TileIndex t)
}
static inline bool IsClearUnderBridge(TileIndex t)
{
return GB(_m[t].m5, 3, 3) == 0;
}
static inline bool IsTransportUnderBridge(TileIndex t)
{
return HASBIT(_m[t].m5, 5);
}
static inline TransportType GetTransportTypeUnderBridge(TileIndex t)
{
return (TransportType)GB(_m[t].m5, 3, 2);
}
/**
* Starting at one bridge end finds the other bridge end
*/

4
table/bridge_land.h
View File

@ -26,10 +26,6 @@
* </ul>
*/
static const SpriteID _bridge_land_below[] = {
SPR_FLAT_GRASS_TILE, SPR_FLAT_WATER_TILE, SPR_FLAT_SNOWY_TILE, SPR_FLAT_WATER_TILE
};
static const PalSpriteID _bridge_sprite_table_2_0[] = {
0x9C3, 0x9C7, 0x9C9, 0x0, 0x9C4, 0x9C8, 0x9CA, 0x0,
0x9C5, 0x9C7, 0x9C9, 0x0, 0x9C6, 0x9C8, 0x9CA, 0x0,

34
tunnelbridge_cmd.c
View File

@ -1033,23 +1033,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
uint z;
int x,y;
image = GB(ti->map5, 3, 2); // type of stuff under bridge (only defined for 0,1)
/** @todo So why do we even WASTE that one bit?! (map5, bit 4) */
assert(image <= 1);
if (!(ti->map5 & 0x20)) {
// draw land under bridge
if (ice) image += 2;
if (image != 1 || ti->tileh == 0) {
DrawGroundSprite(_bridge_land_below[image] + _tileh_to_sprite[ti->tileh]);
} else {
DrawGroundSprite(_water_shore_sprites[ti->tileh]);
}
// draw canal water?
if (ti->map5 & 8 && ti->z != 0) DrawCanalWater(ti->tile);
} else {
if (IsTransportUnderBridge(ti->tile)) {
// draw transport route under bridge
// draw foundation?
@ -1058,9 +1042,9 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
if (f) DrawFoundation(ti, f);
}
if (!(image&1)) {
if (GetTransportTypeUnderBridge(ti->tile) == TRANSPORT_RAIL) {
const RailtypeInfo *rti = GetRailTypeInfo(GB(_m[ti->tile].m3, 0, 4));
// railway
image = SPR_RAIL_TRACK_Y + (ti->map5 & 1);
if (ti->tileh != 0) image = SPR_RAIL_TRACK_Y + _track_sloped_sprites[ti->tileh - 1];
image += rti->total_offset;
@ -1072,6 +1056,18 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
if (ice) image += 19;
}
DrawGroundSprite(image);
} else {
if (IsClearUnderBridge(ti->tile)) {
image = (ice ? SPR_FLAT_SNOWY_TILE : SPR_FLAT_GRASS_TILE);
DrawGroundSprite(image + _tileh_to_sprite[ti->tileh]);
} else {
if (ti->tileh == 0) {
DrawGroundSprite(SPR_FLAT_WATER_TILE);
if (ti->z != 0) DrawCanalWater(ti->tile);
} else {
DrawGroundSprite(_water_shore_sprites[ti->tileh]);
}
}
}
/* Cope for the direction of the bridge */