Currently, CO2 is not very effective at stopping coal fires, because the coal will keep burning after the CO2 is removed.

I think this code should work: (in the code for CO2, right after line 73)

if ((r&0xFF)==PT_COAL){
    parts[r>>8].life=110;
    if(!(rand()%30)){
        sim->kill_part(i);
        return 1;
    }
}

or maybe

if ((r&0xFF)==PT_COAL && (rand()%20)){
    parts[r>>8].life=110;
    if(!(rand()%30)){
        sim->kill_part(i);
        return 1;
    }
}

@jBot-42 (View Post)

 first sentence: yeah, but CO2 should work better than that.

 second sentence: yeah...

The problem is that any coal that was exposed to fire (tmp2 < 110) will still be destroyed.

I should probably delete some of my unpublished saves...