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(svn r10470) -Fix: clamp station build date to 16 bit value for newgrf, preventing overflow and incorrect graphics shown past a certain date.

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peter1138 2007-07-07 20:17:01 +00:00
parent 576128159a
commit 0543657b75
1 changed files with 2 additions and 2 deletions
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4
src/newgrf_station.cpp
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@ -378,7 +378,7 @@ static uint32 StationGetVariable(const ResolverObject *object, byte variable, by
case 0x42: return 0; // Rail type (XXX Get current type from GUI?)
case 0x43: return _current_player; // Station owner
case 0x44: return 2; // PBS status
case 0xFA: return max(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0); // Build date
case 0xFA: return clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Build date, clamped to a 16 bit value
}
*available = false;
@ -420,7 +420,7 @@ static uint32 StationGetVariable(const ResolverObject *object, byte variable, by
case 0xF3: return st->bus_stops->status;
case 0xF6: return st->airport_flags;
case 0xF7: return GB(st->airport_flags, 8, 8);
case 0xFA: return max(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0);
case 0xFA: return clamp(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
}
/* Handle cargo variables with parameter, 0x60 to 0x65 */