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authoryexo <yexo@openttd.org>2009-09-02 12:48:23 +0000
committeryexo <yexo@openttd.org>2009-09-02 12:48:23 +0000
commit05433adb6d09f0514b983e631e3a8b334c6f1957 (patch)
treeacbd48819284e5e8ae28097ff515f0e027acc559 /src/ai/api
parentb7f7dd77bf565d719a2d2ada087f15978a79b48f (diff)
downloadopenttd-05433adb6d09f0514b983e631e3a8b334c6f1957.tar.xz
(svn r17378) -Fix [NoAI]: Several AITile::* functions didn't check whether their parameters were valid
Diffstat (limited to 'src/ai/api')
-rw-r--r--src/ai/api/ai_tile.cpp12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/ai/api/ai_tile.cpp b/src/ai/api/ai_tile.cpp
index c0d1b59e0..35eed526b 100644
--- a/src/ai/api/ai_tile.cpp
+++ b/src/ai/api/ai_tile.cpp
@@ -95,31 +95,43 @@
/* static */ bool AITile::HasTreeOnTile(TileIndex tile)
{
+ if (!::IsValidTile(tile)) return false;
+
return ::IsTileType(tile, MP_TREES);
}
/* static */ bool AITile::IsFarmTile(TileIndex tile)
{
+ if (!::IsValidTile(tile)) return false;
+
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_FIELDS));
}
/* static */ bool AITile::IsRockTile(TileIndex tile)
{
+ if (!::IsValidTile(tile)) return false;
+
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_ROCKS));
}
/* static */ bool AITile::IsRoughTile(TileIndex tile)
{
+ if (!::IsValidTile(tile)) return false;
+
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_ROUGH));
}
/* static */ bool AITile::IsSnowTile(TileIndex tile)
{
+ if (!::IsValidTile(tile)) return false;
+
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_SNOW));
}
/* static */ bool AITile::IsDesertTile(TileIndex tile)
{
+ if (!::IsValidTile(tile)) return false;
+
return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_DESERT));
}