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(svn r12177) -Codechange: use 'side' parameter in GetTileTrackStatus so there can be less checks in pathfinders for depots/stations/tunnels/bridges

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smatz
2008-02-18 16:11:31 +00:00
parent a0a225ab02
commit 29125c0e68
13 changed files with 68 additions and 30 deletions
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25
src/road_cmd.cpp
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@@ -1314,7 +1314,7 @@ static const byte _road_trackbits[16] = {
0x0, 0x0, 0x0, 0x10, 0x0, 0x2, 0x8, 0x1A, 0x0, 0x4, 0x1, 0x15, 0x20, 0x26, 0x29, 0x3F,
};
static uint32 GetTileTrackStatus_Road(TileIndex tile, TransportType mode, uint sub_mode)
static uint32 GetTileTrackStatus_Road(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
{
switch (mode) {
@@ -1326,22 +1326,35 @@ static uint32 GetTileTrackStatus_Road(TileIndex tile, TransportType mode, uint s
if ((GetRoadTypes(tile) & sub_mode) == 0) return 0;
switch (GetRoadTileType(tile)) {
case ROAD_TILE_NORMAL: {
RoadType rt = (RoadType)FindFirstBit(sub_mode);
const uint drd_to_multiplier[DRD_END] = { 0x101, 0x100, 0x1, 0x0 };
RoadType rt = (RoadType)FindFirstBit(sub_mode);
RoadBits bits = GetRoadBits(tile, rt);
/* no roadbit at this side of tile, return 0 */
if (side != INVALID_DIAGDIR && DiagDirToRoadBits(side) & bits == 0) return 0;
uint multiplier = drd_to_multiplier[rt == ROADTYPE_TRAM ? DRD_NONE : GetDisallowedRoadDirections(tile)];
return HasRoadWorks(tile) ? 0 : _road_trackbits[GetRoadBits(tile, rt)] * multiplier;
return HasRoadWorks(tile) ? 0 : _road_trackbits[bits] * multiplier;
}
case ROAD_TILE_CROSSING: {
uint32 r = AxisToTrackBits(GetCrossingRoadAxis(tile)) * 0x101;
Axis axis = GetCrossingRoadAxis(tile);
if (side != INVALID_DIAGDIR && axis != DiagDirToAxis(side)) return 0;
uint32 r = AxisToTrackBits(axis) * 0x101;
if (IsCrossingBarred(tile)) r *= 0x10001;
return r;
}
default:
case ROAD_TILE_DEPOT:
return AxisToTrackBits(DiagDirToAxis(GetRoadDepotDirection(tile))) * 0x101;
case ROAD_TILE_DEPOT: {
DiagDirection dir = GetRoadDepotDirection(tile);
if (side != INVALID_DIAGDIR && side != dir) return 0;
return AxisToTrackBits(DiagDirToAxis(dir)) * 0x101;
}
}
break;