(svn r3423) - NewGRF: Update the base_intro age at which an engine will have a randomized intro date, as per (the now updated) spec.
--- a/engine.c Mon Jan 23 21:05:05 2006 +0000
+++ b/engine.c Tue Jan 24 07:41:28 2006 +0000
@@ -209,8 +209,11 @@
e->flags = 0;
e->player_avail = 0;
+ // The magic value of 729 days below comes from the NewGRF spec. If the
+ // base intro date is before 1922 then the random number of days is not
+ // added.
r = Random();
- e->intro_date = ei->base_intro == 0 ? 0 : GB(r, 0, 9) + ei->base_intro;
+ e->intro_date = ei->base_intro <= 729 ? ei->base_intro : GB(r, 0, 9) + ei->base_intro;
if (e->intro_date <= _date) {
e->age = (_date - e->intro_date) >> 5;
e->player_avail = (byte)-1;