(svn r16166) -Add [NoAI]: AITile::Get(Min|Max|Corner)Height

1 files changed, 25 insertions, 1 deletions

diff --git a/src/ai/api/ai_tile.cpp b/src/ai/api/ai_tile.cpp
index 8a04c1772..f5bf96f1a 100644
--- a/src/ai/api/ai_tile.cpp
+++ b/src/ai/api/ai_tile.cpp
@@ -11,6 +11,7 @@
 #include "../../water_map.h"
 #include "../../clear_map.h"
 #include "../../town.h"
+#include "../../landscape.h"
 
 /* static */ bool AITile::IsBuildable(TileIndex tile)
 {
@@ -132,11 +133,34 @@
 
 /* static */ int32 AITile::GetHeight(TileIndex tile)
 {
-	if (!::IsValidTile(tile)) return false;
+	if (!::IsValidTile(tile)) return -1;
 
 	return ::TileHeight(tile);
 }
 
+/* static */ int32 AITile::GetMinHeight(TileIndex tile)
+{
+	if (!::IsValidTile(tile)) return -1;
+
+	return ::GetTileZ(tile) / ::TILE_HEIGHT;
+}
+
+/* static */ int32 AITile::GetMaxHeight(TileIndex tile)
+{
+	if (!::IsValidTile(tile)) return -1;
+
+	return ::GetTileMaxZ(tile) / ::TILE_HEIGHT;
+}
+
+/* static */ int32 AITile::GetCornerHeight(TileIndex tile, Corner corner)
+{
+	if (!::IsValidTile(tile) || !::IsValidCorner((::Corner)corner)) return -1;
+
+	uint z;
+	::Slope slope = ::GetTileSlope(tile, &z);
+	return (z + ::GetSlopeZInCorner(slope, (::Corner)corner)) / ::TILE_HEIGHT;
+}
+
 /* static */ AICompany::CompanyID AITile::GetOwner(TileIndex tile)
 {
 	if (!::IsValidTile(tile)) return AICompany::COMPANY_INVALID;