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-rw-r--r--src/industry.h4
-rw-r--r--src/newgrf_industries.cpp4
2 files changed, 7 insertions, 1 deletions
diff --git a/src/industry.h b/src/industry.h
index e8d5596c9..bf60975a7 100644
--- a/src/industry.h
+++ b/src/industry.h
@@ -82,6 +82,10 @@ enum IndustyBehaviour {
INDUSTRYBEH_AIRPLANE_ATTACKS = 1 << 11, ///< can be exploded by a military airplane (oil refinery)
INDUSTRYBEH_CHOPPER_ATTACKS = 1 << 12, ///< can be exploded by a military helicopter (factory)
INDUSTRYBEH_CAN_SUBSIDENCE = 1 << 13, ///< can cause a subsidence (coal mine, shaft that collapses)
+ /* The following flags are only used for newindustries and do no represent any normal behaviour */
+ INDUSTRYBEH_PROD_MULTI_HNDLING = 1 << 14, ///< Automatic production multiplier handling
+ INDUSTRYBEH_PRODCALLBACK_RANDOM = 1 << 15, ///< Production callback needs random bits in var 10
+ INDUSTRYBEH_NOBUILT_MAPCREATION = 1 << 16, ///< Do not force one instance of this type to appear on map generation
INDUSTRYBEH_CANCLOSE_LASTINSTANCE = 1 << 17, ///< Allow closing down the last instance of this type
};
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp
index 5574673a6..811f76a6d 100644
--- a/src/newgrf_industries.cpp
+++ b/src/newgrf_industries.cpp
@@ -462,13 +462,15 @@ static int32 DerefIndProd(uint field, bool use_register)
*/
void IndustryProductionCallback(Industry *ind, int reason)
{
+ const IndustrySpec *spec = GetIndustrySpec(ind->type);
ResolverObject object;
NewIndustryResolver(&object, ind->xy, ind);
+ if ((spec->behaviour & INDUSTRYBEH_PRODCALLBACK_RANDOM) != 0) object.callback_param1 = Random();
object.callback_param2 = reason;
for (uint loop = 0;; loop++) {
SB(object.callback_param2, 8, 16, loop);
- const SpriteGroup *group = Resolve(GetIndustrySpec(ind->type)->grf_prop.spritegroup, &object);
+ const SpriteGroup *group = Resolve(spec->grf_prop.spritegroup, &object);
if (group == NULL || group->type != SGT_INDUSTRY_PRODUCTION) break;
bool deref = (group->g.indprod.version == 1);