From 36a98ba47ea6df093b31a29442649b0d5abac1f9 Mon Sep 17 00:00:00 2001
From: peter1138 <peter1138@openttd.org>
Date: Tue, 2 May 2006 20:44:06 +0000
Subject: [PATCH] (svn r4697) - NewGRF: callback IDs can now be 16 bit values.

---
 newgrf_engine.c      | 2 +-
 newgrf_spritegroup.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/newgrf_engine.c b/newgrf_engine.c
index 519977c943..de61aa01a6 100644
--- a/newgrf_engine.c
+++ b/newgrf_engine.c
@@ -765,7 +765,7 @@ bool UsesWagonOverride(const Vehicle* v)
  * @param vehicle  The vehicle to evaluate the callback for, or NULL if it doesnt exist yet
  * @return The value the callback returned, or CALLBACK_FAILED if it failed
  */
-uint16 GetVehicleCallback(byte callback, uint32 param1, uint32 param2, EngineID engine, const Vehicle *v)
+uint16 GetVehicleCallback(uint16 callback, uint32 param1, uint32 param2, EngineID engine, const Vehicle *v)
 {
 	const SpriteGroup *group;
 	ResolverObject object;
diff --git a/newgrf_spritegroup.h b/newgrf_spritegroup.h
index 4716fcafd3..3f3a2ee8de 100644
--- a/newgrf_spritegroup.h
+++ b/newgrf_spritegroup.h
@@ -156,7 +156,7 @@ void InitializeSpriteGroupPool(void);
 
 
 typedef struct ResolverObject {
-	byte callback;
+	uint16 callback;
 	uint32 callback_param1;
 	uint32 callback_param2;