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Location: cpp/openttd-patchpack/source/src/yapf/yapf_costbase.hpp - annotation
r7643:9ec38df7caf3
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(svn r11174) -Codechange: add possibility to show the bounding boxes of sprites using CTRL-B so one can get a better understanding of the used bounding boxes to fix the glitches that still exist. Patch by frosch.
Note that this is not completely glitch free, bounding boxes sometimes aren't removed properly. This is due to the fact that the bounding boxes sometimes are larger than the sprite, which causes a smaller part than the bounding box to be redrawn. This is NOT a bug, but a known implementation limit as we do not want to slow down normal games so the debug graphics are always 100% correct.
Note that this is not completely glitch free, bounding boxes sometimes aren't removed properly. This is due to the fact that the bounding boxes sometimes are larger than the sprite, which causes a smaller part than the bounding box to be redrawn. This is NOT a bug, but a known implementation limit as we do not want to slow down normal games so the debug graphics are always 100% correct.
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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 (GetBridgeRampDirection(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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