grf {
grfid : "ZUU0";
name : string(STR_GRF_NAME);
desc : string(STR_GRF_DESCRIPTION);
version: 1;
min_compatible_version: 1;
}
switch (FEAT_INDUSTRIES, SELF, switch_prod_change, [
STORE_PERM(extra_callback_info1, 0),
extra_callback_info1
]) {
return 0;
}
item (FEAT_INDUSTRIES, item_industry_coal_mine) {
property {
substitute: 00; // coal mine
override: 00;
}
graphics {
random_prod_change: switch_prod_change;
}
}