(svn r20348) -Fix [FS#4004]: [NoAI] Ship depots were constructed along the wrong axis

2 files changed, 2 insertions, 1 deletions

diff --git a/src/ai/api/ai_marine.cpp b/src/ai/api/ai_marine.cpp
index 0e2e26a8a..59e9d9f5f 100644
--- a/src/ai/api/ai_marine.cpp
+++ b/src/ai/api/ai_marine.cpp
@@ -77,7 +77,7 @@
 	EnforcePrecondition(false, ::IsValidTile(front));
 	EnforcePrecondition(false, (::TileX(front) == ::TileX(tile)) != (::TileY(front) == ::TileY(tile)));
 
-	return AIObject::DoCommand(tile, ::TileY(front) == ::TileY(tile), 0, CMD_BUILD_SHIP_DEPOT);
+	return AIObject::DoCommand(tile, ::TileX(front) == ::TileX(tile), 0, CMD_BUILD_SHIP_DEPOT);
 }
 
 /* static */ bool AIMarine::BuildDock(TileIndex tile, StationID station_id)
diff --git a/src/ai/api/ai_marine.hpp b/src/ai/api/ai_marine.hpp
index e324e27f3..4c7a7cbbf 100644
--- a/src/ai/api/ai_marine.hpp
+++ b/src/ai/api/ai_marine.hpp
@@ -107,6 +107,7 @@ public:
 	 * @exception AIMarine::ERR_MARINE_MUST_BE_BUILT_ON_WATER
 	 * @return Whether the water depot has been/can be build or not.
 	 * @note A WaterDepot is 1 tile in width, and 2 tiles in length.
+	 * @note The depot will be built towards the south from 'tile', not necessarily towards 'front'.
 	 */
 	static bool BuildWaterDepot(TileIndex tile, TileIndex front);