text: /*
   * Pixel Dungeon
   * Copyright (C) 2012-2015 Oleg Dolya
   *
   * Shattered Pixel Dungeon
   * Copyright (C) 2014-2021 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.actors.buffs;
  
  import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
  import com.watabou.utils.Bundle;
  
  public abstract class ShieldBuff extends Buff {
  	
  	private int shielding;
  	
  	@Override
  	public boolean attachTo(Char target) {
  		if (super.attachTo(target)) {
  			target.needsShieldUpdate = true;
  			return true;
  		} else {
  			return false;
  		}
  	}
  	
  	@Override
  	public void detach() {
  		target.needsShieldUpdate = true;
  		super.detach();
  	}
  	
  	public int shielding(){
  		return shielding;
  	}
  	
  	public void setShield( int shield ) {
  		this.shielding = shield;
  		if (target != null) target.needsShieldUpdate = true;
  	}
  	
  	public void incShield(){
  		incShield(1);
  	}
  	
  	public void incShield( int amt ){
  		shielding += amt;
  		if (target != null) target.needsShieldUpdate = true;
  	}
  	
  	public void decShield(){
  		decShield(1);
  	}
  	
  	public void decShield( int amt ){
  		shielding -= amt;
  		if (target != null) target.needsShieldUpdate = true;
  	}
  	
  	//returns the amount of damage leftover
  	public int absorbDamage( int dmg ){
  		if (shielding >= dmg){
  			shielding -= dmg;
  			dmg = 0;
  		} else {
  			dmg -= shielding;
  			shielding = 0;
  		}
  		if (shielding == 0){
  			detach();
  		}
  		if (target != null) target.needsShieldUpdate = true;
  		return dmg;
  	}
  	
  	private static final String SHIELDING = "shielding";
  	
  	@Override
  	public void storeInBundle( Bundle bundle ) {
  		super.storeInBundle( bundle );
  		bundle.put( SHIELDING, shielding);
  	}
  	
  	@Override
  	public void restoreFromBundle( Bundle bundle ) {
  		super.restoreFromBundle( bundle );
  		shielding = bundle.getInt( SHIELDING );
  	}
  	
  }
  