int prevKills = 0;
	int currentKills = 0;
	int killsToLoot = 0; //You need to set this at script startup

    public boolean checkWarriorDead() {
        if (getMyPlayer().getInteracting().getAnimation() == warriorDead && getMyPlayer().isInCombat()) {        
            currentKills++;
		if( (currentKills - prevKills) >= killsToLoot )
		{
			//do something
			prevKills = currentKills;
		}
            wait(random(200,300));
			return true;
        }
        else {
            return false;
        }
    }