DestroyAllExceptOneSpell.java

package net.demilich.metastone.game.spells;

import java.util.ArrayList;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import net.demilich.metastone.game.GameContext;
import net.demilich.metastone.game.Player;
import net.demilich.metastone.game.entities.Entity;
import net.demilich.metastone.game.spells.desc.SpellDesc;
import net.demilich.metastone.game.spells.desc.filter.EntityFilter;

public class DestroyAllExceptOneSpell extends DestroySpell {
	
	public static Logger logger = LoggerFactory.getLogger(DestroyAllExceptOneSpell.class);

	@Override
	public void cast(GameContext context, Player player, SpellDesc desc, Entity source, List<Entity> targets) {
		if (targets == null || targets.isEmpty()) {
			return;
		}
		EntityFilter filter = desc.getEntityFilter();
		List<Entity> destroyedTargets = new ArrayList<Entity>(targets);
		List<Entity> potentialSurvivors = SpellUtils.getValidTargets(context, player, destroyedTargets, filter);
		if (!potentialSurvivors.isEmpty()) {
			Entity randomTarget = SpellUtils.getRandomTarget(potentialSurvivors);
			destroyedTargets.remove(randomTarget);	
		}
		
		for (Entity entity : destroyedTargets) {
			onCast(context, player, null, null, entity);
		}
	}
}