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-rw-r--r--src/newgrf.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/newgrf.cpp b/src/newgrf.cpp
index b854c2801..660da389c 100644
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -4053,6 +4053,7 @@ static ChangeInfoResult ObjectChangeInfo(uint id, int numinfo, int prop, ByteRea
if (*ospec == nullptr) {
*ospec = CallocT<ObjectSpec>(1);
(*ospec)->views = 1; // Default for NewGRFs that don't set it.
+ (*ospec)->size = 0x11; // Default for NewGRFs that manage to not set it (1x1)
}
/* Swap classid because we read it in BE. */
@@ -4078,6 +4079,10 @@ static ChangeInfoResult ObjectChangeInfo(uint id, int numinfo, int prop, ByteRea
case 0x0C: // Size
spec->size = buf->ReadByte();
+ if ((spec->size & 0xF0) == 0 || (spec->size & 0x0F) == 0) {
+ grfmsg(1, "ObjectChangeInfo: Invalid object size requested (%u) for object id %u. Ignoring.", spec->size, id + i);
+ spec->size = 0x11; // 1x1
+ }
break;
case 0x0D: // Build cost multipler