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-rw-r--r--src/newgrf_spritegroup.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/newgrf_spritegroup.cpp b/src/newgrf_spritegroup.cpp
index fcff45eb7..e187ddd9f 100644
--- a/src/newgrf_spritegroup.cpp
+++ b/src/newgrf_spritegroup.cpp
@@ -131,7 +131,7 @@ static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, U last_value,
static inline const SpriteGroup *ResolveVariable(const SpriteGroup *group, ResolverObject *object)
{
static SpriteGroup nvarzero;
- uint32 last_value = object->last_value;
+ uint32 last_value = 0;
uint32 value = 0;
uint i;
@@ -159,6 +159,8 @@ static inline const SpriteGroup *ResolveVariable(const SpriteGroup *group, Resol
last_value = value;
}
+ object->last_value = last_value;
+
if (group->g.determ.num_ranges == 0) {
/* nvar == 0 is a special case -- we turn our value into a callback result */
nvarzero.type = SGT_CALLBACK;