(svn r3016) -NewGRF: Implement the start of reference counting for sprite groups. This will allow unloading.

1 files changed, 1 insertions, 0 deletions

diff --git a/sprite.h b/sprite.h
index 2e1938cac..785a6af1a 100644
--- a/sprite.h
+++ b/sprite.h
@@ -129,6 +129,7 @@ typedef enum SpriteGroupType {
 
 struct SpriteGroup {
 	SpriteGroupType type;
+	byte ref_count;
 
 	union {
 		RealSpriteGroup real;