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(svn r1720) - Fix: signed/unsigned warnings. Tile which is incremented/decremented every time until suitable ground is found is compared to the direction it is going in. If this wraps, return error. For this treat the tile itself as a TileIndexDiff

This commit is contained in:
darkvater 2005-01-29 18:22:07 +00:00
parent 2005495bfb
commit 885fd2b15c
1 changed files with 2 additions and 2 deletions
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4
ai.c
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@ -1962,7 +1962,7 @@ static inline void AiCheckBuildRailBridgeHere(AiRailFinder *arf, TileIndex tile,
// Allow bridges directly over bottom tiles
flag = arf->ti.z == 0;
for(;;) {
if (tile_new < -TileOffsByDir(dir2)) return; // Wraping around map, no bridge possible!
if ((TileIndexDiff)tile_new < -TileOffsByDir(dir2)) return; // Wraping around map, no bridge possible!
tile_new = TILE_MASK(tile_new + TileOffsByDir(dir2));
FindLandscapeHeightByTile(&arf->ti, tile_new);
if (arf->ti.tileh != 0 || arf->ti.type == MP_CLEAR || arf->ti.type == MP_TREES) {
@ -2851,7 +2851,7 @@ static inline void AiCheckBuildRoadBridgeHere(AiRoadFinder *arf, TileIndex tile,
// Allow bridges directly over bottom tiles
flag = arf->ti.z == 0;
for(;;) {
if (tile_new < -TileOffsByDir(dir2)) return; // Wraping around map, no bridge possible!
if ((TileIndexDiff)tile_new < -TileOffsByDir(dir2)) return; // Wraping around map, no bridge possible!
tile_new = TILE_MASK(tile_new + TileOffsByDir(dir2));
FindLandscapeHeightByTile(&arf->ti, tile_new);
if (arf->ti.tileh != 0 || arf->ti.type == MP_CLEAR || arf->ti.type == MP_TREES) {