@@ -17,6 +17,8 @@
#include "town.h"
#include "company_base.h"
#include "command_func.h"
#include "gui.h"
#include "strings_func.h"
#include "table/strings.h"
@@ -570,6 +572,18 @@ void IndustryProductionCallback(Industry
object.callback_param2 = reason;
for (uint loop = 0;; loop++) {
/* limit the number of calls to break infinite loops.
* 'loop' is provided as 16 bits to the newgrf, so abort when those are exceeded. */
if (loop >= 0x10000) {
/* display error message */
SetDParamStr(0, spec->grf_prop.grffile->filename);
SetDParam(1, spec->name);
ShowErrorMessage(STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK, STR_NEWGRF_BUGGY, 0, 0);
/* abort the function early, this error isn't critical and will allow the game to continue to run */
break;
}
SB(object.callback_param2, 8, 16, loop);
const SpriteGroup *group = Resolve(spec->grf_prop.spritegroup, &object);
if (group == NULL || group->type != SGT_INDUSTRY_PRODUCTION) break;