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Location: cpp/openttd-patchpack/source/src/yapf/yapf_costbase.hpp - annotation
r8227:553c3397a81b
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(svn r11790) -Update: apparantly it's 2008 already ;). Patch by Anne Stellingwerf (FS#1613).
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#ifndef YAPF_COSTBASE_HPP
#define YAPF_COSTBASE_HPP
struct CYapfCostBase {
static const TrackdirBits c_upwards_slopes[16];
FORCEINLINE static bool stSlopeCost(TileIndex tile, Trackdir td)
{
if (IsDiagonalTrackdir(td)) {
if (IsBridgeTile(tile)) {
// it is bridge ramp, check if we are entering the bridge
if (GetTunnelBridgeDirection(tile) != TrackdirToExitdir(td)) return false; // no, we are living it, no penalty
// we are entering the bridge
// if the tile slope is downwards, then bridge ramp has not upward slope
uint tile_slope = GetTileSlope(tile, NULL) & 0x0F;
if ((c_upwards_slopes[tile_slope] & TrackdirToTrackdirBits(ReverseTrackdir(td))) != 0) return false; // tile under ramp goes down, no penalty
// tile under ramp isn't going down, so ramp must go up
return true;
} else {
// not bridge ramp
if (IsTunnelTile(tile)) return false; // tunnel entry/exit doesn't slope
uint tile_slope = GetTileSlope(tile, NULL) & 0x0F;
if ((c_upwards_slopes[tile_slope] & TrackdirToTrackdirBits(td)) != 0) return true; // slopes uphill => apply penalty
}
}
return false;
}
};
struct CostRailSettings {
// look-ahead signal penalty
};
#endif /* YAPF_COSTBASE_HPP */
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