/*
 * Pixel Dungeon
 * Copyright (C) 2012-2015 Oleg Dolya
 *
 * Shattered Pixel Dungeon
 * Copyright (C) 2014-2026 Evan Debenham
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

package com.shatteredpixel.shatteredpixeldungeon.items.scrolls;

import com.shatteredpixel.shatteredpixeldungeon.Assets;
import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
import com.shatteredpixel.shatteredpixeldungeon.actors.hero.Hero;
import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.npcs.MirrorImage;
import com.shatteredpixel.shatteredpixeldungeon.messages.Messages;
import com.shatteredpixel.shatteredpixeldungeon.scenes.GameScene;
import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
import com.watabou.noosa.audio.Sample;
import com.watabou.utils.PathFinder;
import com.watabou.utils.Random;

import java.util.ArrayList;

public class ScrollOfMirrorImage extends Scroll {

	{
		icon = ItemSpriteSheet.Icons.SCROLL_MIRRORIMG;
	}

	private static final int NIMAGES	= 2;
	
	@Override
	public void doRead() {
		detach(curUser.belongings.backpack);
		if ( spawnImages(curUser, NIMAGES) > 0){
			GLog.i(Messages.get(this, "copies"));
		} else {
			GLog.i(Messages.get(this, "no_copies"));
		}
		identify();
		
		Sample.INSTANCE.play( Assets.Sounds.READ );
		
		readAnimation();
	}

	public static int spawnImages( Hero hero, int nImages ){
		return spawnImages( hero, hero.pos, nImages);
	}

	//returns the number of images spawned
	public static int spawnImages( Hero hero, int pos, int nImages ){
		
		ArrayList<Integer> respawnPoints = new ArrayList<>();
		
		for (int i = 0; i < PathFinder.NEIGHBOURS9.length; i++) {
			int p = pos + PathFinder.NEIGHBOURS9[i];
			if (Actor.findChar( p ) == null && Dungeon.level.passable[p]) {
				respawnPoints.add( p );
			}
		}
		
		int spawned = 0;
		while (nImages > 0 && respawnPoints.size() > 0) {
			int index = Random.index( respawnPoints );
			
			MirrorImage mob = new MirrorImage();
			mob.duplicate( hero );
			GameScene.add( mob );
			ScrollOfTeleportation.appear( mob, respawnPoints.get( index ) );
			
			respawnPoints.remove( index );
			nImages--;
			spawned++;
		}
		
		return spawned;
	}

	@Override
	public int value() {
		return isKnown() ? 30 * quantity : super.value();
	}
}
