(svn r9703) -Codechange: support callback 36 in vehicle purchase lists

1 files changed, 10 insertions, 1 deletions

diff --git a/src/newgrf_engine.cpp b/src/newgrf_engine.cpp
index 48c92495a..e1b24de2e 100644
--- a/src/newgrf_engine.cpp
+++ b/src/newgrf_engine.cpp
@@ -952,7 +952,7 @@ uint16 GetVehicleCallbackParent(uint16 callback, uint32 param1, uint32 param2, E
 }
 
 
-/* Callback 36 handler */
+/* Callback 36 handlers */
 uint GetVehicleProperty(const Vehicle *v, uint8 property, uint orig_value)
 {
 	uint16 callback = GetVehicleCallback(CBID_VEHICLE_MODIFY_PROPERTY, property, 0, v->engine_type, v);
@@ -962,6 +962,15 @@ uint GetVehicleProperty(const Vehicle *v, uint8 property, uint orig_value)
 }
 
 
+uint GetEngineProperty(EngineID engine, uint8 property, uint orig_value)
+{
+	uint16 callback = GetVehicleCallback(CBID_VEHICLE_MODIFY_PROPERTY, property, 0, engine, NULL);
+	if (callback != CALLBACK_FAILED) return callback;
+
+	return orig_value;
+}
+
+
 static void DoTriggerVehicle(Vehicle *v, VehicleTrigger trigger, byte base_random_bits, bool first)
 {
 	const SpriteGroup *group;