Destruction

The last one and half a month were really sparse on working on Laterna Magica. It was the countdown of my school year and I was busy with a lot of stuff. There were loads of very work-intensive homeworks, and my year's project was also due. Anyone with experience on projects knows that half of the work is done in the two weeks before the end date and the other half is done in the two weeks after ;)

I can tell you, I didn't find a single minute to work on my program, but today I finally got back to it. I don't know if I can work on it regularly again, but I will try.

Before my big break, I told you that one of my next steps will be combat, but combat is a big thing and it takes many parts to work. One of these is damage.

Until very recent, damage was a simple concept: Players and creatures can receive damage. When a player receives damage, he looses life; when a creature receives enough damage, it is destroyed. However, two recent changes turned things around a bit: Planeswalkers, but more importantly Wither and the accompanying changes of Lifelink etc. To make things worse, damage has also another special concept found (nearly) nowhere else in the game: sources.

I suspect damage to be very annoying to program, but happily there's another thing to be done before damage really makes sense... Which happens to be what I've done today: Destruction, which was in fact so easy that I can fit it here without worrying that it will overload my post:

public class DestroyPermanentEvent extends ReplaceableEvent {
    private MagicObject o;
   
    public DestroyPermanentEvent(MagicObject o) {
        super(o);
        this.o = o;
    }
   
    @Override
    protected boolean execute0() {
        if(o.getZone().getType() != Zones.BATTLEFIELD) return false;
        o.setZone(o.getOwner().getGraveyard());
        return true;
    }
}

execute0() is very straightforward, which is possible because "destroy" only has one meaning, as opposed to damage, which would make a decision based on the receiver's type and both source's and receiver's abilities. Making DestroyPermanentEvent a ReplaceableEvent easily takes care of Regeneration and indestructibility. The only thing I'm not sure about is "... can't be regenerated".