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-rw-r--r--src/newgrf_industrytiles.cpp2
-rw-r--r--src/newgrf_spritegroup.cpp3
2 files changed, 3 insertions, 2 deletions
diff --git a/src/newgrf_industrytiles.cpp b/src/newgrf_industrytiles.cpp
index 2ca61fd01..4b229f7e3 100644
--- a/src/newgrf_industrytiles.cpp
+++ b/src/newgrf_industrytiles.cpp
@@ -275,7 +275,7 @@ bool PerformIndustryTileSlopeCheck(TileIndex ind_base_tile, TileIndex ind_tile,
return !IsSlopeRefused(GetTileSlope(ind_tile, NULL), its->slopes_refused);
}
if (its->grf_prop.grffile->grf_version < 7) {
- return callback_res != 0;
+ return (callback_res & 0xFF) != 0; // mask to 8 bit callback result
}
/* Copy some parameters from the registers to the error message text ref. stack */
diff --git a/src/newgrf_spritegroup.cpp b/src/newgrf_spritegroup.cpp
index b64c784b3..056d949a2 100644
--- a/src/newgrf_spritegroup.cpp
+++ b/src/newgrf_spritegroup.cpp
@@ -83,7 +83,7 @@ TemporaryStorageArray<uint32, 0x110> _temp_store;
static inline bool Is8BitCallback(const ResolverObject *object)
{
/* Var 0x7E procedure results are always 15 bit */
- if (object == NULL | object->procedure_call) return false;
+ if (object == NULL || object->procedure_call) return false;
switch (object->callback) {
/* All these functions are 15 bit callbacks */
@@ -96,6 +96,7 @@ static inline bool Is8BitCallback(const ResolverObject *object)
case CBID_INDTILE_ACCEPT_CARGO:
case CBID_VEHICLE_COLOUR_MAPPING:
case CBID_HOUSE_PRODUCE_CARGO:
+ case CBID_INDTILE_SHAPE_CHECK: // depends on grf version, masked to 8 bit in PerformIndustryTileSlopeCheck() if needed
case CBID_VEHICLE_SOUND_EFFECT:
case CBID_VEHICLE_MODIFY_PROPERTY: // depends on queried property
case CBID_CARGO_PROFIT_CALC: