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authorYexo <yexo@openttd.org>2009-01-20 14:11:58 +0000
committerYexo <yexo@openttd.org>2009-01-20 14:11:58 +0000
commiteab990901ba64eb52887739a09ff5eeec5c40a0c (patch)
tree5db8c69e705f0e04ba8a13cd9f5454fd9eb67c3a /src
parenta9a8bb35901ca431756eba4406f9da9dbc817829 (diff)
downloadopenttd-eab990901ba64eb52887739a09ff5eeec5c40a0c.tar.xz
(svn r15167) -Fix [FS#2558]: The top of the stack was resetted after executing the first Ai tick causing random AI crashes.
Diffstat (limited to 'src')
-rw-r--r--src/script/squirrel.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/script/squirrel.cpp b/src/script/squirrel.cpp
index b75833f65..22e39562e 100644
--- a/src/script/squirrel.cpp
+++ b/src/script/squirrel.cpp
@@ -192,8 +192,9 @@ bool Squirrel::CallMethod(HSQOBJECT instance, const char *method_name, HSQOBJECT
sq_pushobject(this->vm, instance);
sq_call(this->vm, 1, ret == NULL ? SQFalse : SQTrue, SQTrue, suspend);
if (ret != NULL) sq_getstackobj(vm, -1, ret);
- /* Reset the top */
- sq_settop(this->vm, top);
+ /* Reset the top, but don't do so for the AI main function, as we need
+ * a correct stack when resuming. */
+ if (this->vm->_suspended == 0) sq_settop(this->vm, top);
return this->vm->_suspended != 0;
}