content: /*
   * The MIT License (MIT)
   *
   * FXGL - JavaFX Game Library
   *
   * Copyright (c) 2015-2017 AlmasB (almaslvl@gmail.com)
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  package com.almasb.fxglgames.breakout.components;
  
  import com.almasb.fxgl.core.math.Vec2;
  import com.almasb.fxgl.dsl.components.EffectComponent;
  import com.almasb.fxgl.entity.Entity;
  import com.almasb.fxgl.entity.component.Component;
  import com.almasb.fxgl.physics.PhysicsComponent;
  import com.almasb.fxgl.texture.Texture;
  import javafx.scene.effect.Effect;
  import javafx.scene.effect.MotionBlur;
  import javafx.util.Duration;
  
  import static com.almasb.fxgl.dsl.FXGL.getAppWidth;
  
  /**
   * @author Almas Baimagambetov (almaslvl@gmail.com)
   */
  public class BatComponent extends Component {
  
      private static final int BAT_SPEED = 1050;
      private static final float BOUNCE_FACTOR = 1.5f;
      private static final float SPEED_DECAY = 0.66f;
  
      private PhysicsComponent physics;
      private float speed = 0;
  
      private Vec2 velocity = new Vec2();
  
      private Effect blur = new MotionBlur();
  
      private Texture textureOnHit;
  
      public BatComponent(Texture textureOnHit) {
          this.textureOnHit = textureOnHit;
      }
  
      @Override
      public void onUpdate(double tpf) {
          speed = BAT_SPEED * (float)tpf;
  
          velocity.mulLocal(SPEED_DECAY);
  
          if (entity.getX() < 0) {
              velocity.set(BOUNCE_FACTOR * (float) -entity.getX(), 0);
          } else if (entity.getRightX() > getAppWidth()) {
              velocity.set(BOUNCE_FACTOR * (float) -(entity.getRightX() - getAppWidth()), 0);
          }
  
          physics.setBodyLinearVelocity(velocity);
      }
  
      public void left() {
          velocity.set(-speed, 0);
          applyMoveEffects();
      }
  
      public void right() {
          velocity.set(speed, 0);
          applyMoveEffects();
      }
  
      private void applyMoveEffects() {
          entity.setScaleX(1.05);
          entity.setScaleY(1 / entity.getScaleX());
          entity.getViewComponent().getParent().setEffect(blur);
      }
  
      public void stop() {
          entity.setScaleX(1);
          entity.setScaleY(1);
          entity.getViewComponent().getParent().setEffect(null);
      }
  
      public void onHit() {
          entity.getComponent(EffectComponent.class).startEffect(new HitEffect());
      }
  
      public class HitEffect extends com.almasb.fxgl.dsl.components.Effect {
  
          public HitEffect() {
              super(Duration.seconds(0.1));
          }
  
          @Override
          public void onStart(Entity entity) {
              entity.getViewComponent().addChild(textureOnHit);
          }
  
          @Override
          public void onEnd(Entity entity) {
              entity.getViewComponent().removeChild(textureOnHit);
          }
      }
  }
  