Script: Store CommandCost::GetResultData

src/script/api/script_object.cpp

@@ -143,6 +143,16 @@ ScriptObject::ActiveInstance::~ActiveInstance()
 	return GetStorage()->last_cost;
 }
 
+/* static */ void ScriptObject::SetLastCommandResultData(uint32 last_result)
+{
+	GetStorage()->last_result = last_result;
+}
+
+/* static */ uint32 ScriptObject::GetLastCommandResultData()
+{
+	return GetStorage()->last_result;
+}
+
 /* static */ void ScriptObject::SetRoadType(RoadType road_type)
 {
 	GetStorage()->road_type = road_type;
@@ -358,6 +368,7 @@ ScriptObject::ActiveInstance::~ActiveInstance()
 
 	/* Costs of this operation. */
 	SetLastCost(res.GetCost());
+	SetLastCommandResultData(res.GetResultData());
 	SetLastCommandRes(true);
 
 	if (_generating_world) {

src/script/api/script_object.hpp

@@ -237,6 +237,16 @@ protected:
 	 */
 	static Money GetLastCost();
 
+	/**
+	 * Set the result data of the last command.
+	 */
+	static void SetLastCommandResultData(uint32 last_result);
+
+	/**
+	 * Get the result data of the last command.
+	 */
+	static uint32 GetLastCommandResultData();
+
 	/**
 	 * Set a variable that can be used by callback functions to pass information.
 	 */

src/script/script_instance.cpp

@@ -737,6 +737,7 @@ bool ScriptInstance::DoCommandCallback(const CommandCost &result, TileIndex tile
 	} else {
 		ScriptObject::IncreaseDoCommandCosts(result.GetCost());
 		ScriptObject::SetLastCost(result.GetCost());
+		ScriptObject::SetLastCommandResultData(result.GetResultData());
 	}
 
 	ScriptObject::SetLastCommand(INVALID_TILE, 0, 0, 0, CMD_END);

src/script/script_storage.hpp

@@ -41,6 +41,7 @@ private:
 
 	CommandCost costs;               ///< The costs the script is tracking.
 	Money last_cost;                 ///< The last cost of the command.
+	uint32 last_result;              ///< The last result data of the command.
 	uint last_error;                 ///< The last error of the command.
 	bool last_command_res;           ///< The last result of the command.
 
@@ -75,6 +76,7 @@ public:
 		allow_do_command  (true),
 		/* costs (can't be set) */
 		last_cost         (0),
+		last_result       (0),
 		last_error        (STR_NULL),
 		last_command_res  (true),
 		last_tile         (INVALID_TILE),