Android Open Source - AnGmEngine Map Sprite

• Back to Game/simple  ↑

From Project

Back to project page AnGmEngine.

License

The source code is released under:

GNU General Public License

Java Source Code

/*******************************************************************************
 * Copyright 2012-2014 Kevin Klopfenstein.
 *//from   www.  j a  v a  2 s. c  o  m
 * This file is part of AnGmEngine.
 *
 * AnGmEngine 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.
 *
 * AnGmEngine 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 AnGmEngine.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package com.kklop.angmengine.game.sprite;

import android.content.res.Resources;
import android.util.Log;

import com.kklop.angmengine.game.exception.GameException;
import com.kklop.angmengine.game.sprite.bound.Bound;

public class MapSprite extends StaticSprite {
  
  private static final String TAG = MapSprite.class.getSimpleName();
  
  private int screenHeight;
  private int screenWidth;
  
  public static enum MAP_STATE { MOVEMENT, FREEZE_X, FREEZE_Y, FREEZE_BOTH, STOPPED }
  
  @SuppressWarnings("unused")
  private MAP_STATE state;
  
  public MapSprite(Bound bound, int bmp, int x, int y, int fps, 
      int screenHeight, int screenWidth, String type, Resources res) throws GameException {
    super(bound, bmp, x, y, fps, type, res);
    this.screenHeight = screenHeight;
    this.screenWidth = screenWidth;
    state = MAP_STATE.STOPPED;
  }

  public void update(Long gameTime, float targetX, float targetY, float speed) {
    
    double delta_x = (double) (bound.getBoundPoint().x-targetX);
    double delta_y = (double) (bound.getBoundPoint().y-targetY);
    
    double angle = Math.atan2(delta_y, delta_x);
    Log.i(TAG, "Angle is " + angle + " target is (" + targetX + ", " + targetY + ")");
    if (gameTime > frameTicker + framePeriod) {
      frameTicker = gameTime;
      float difX = speed*(float)Math.cos(angle);
      float difY = speed*(float)Math.sin(angle);
      
      x += difX;
      y += difY;
      
      // determine if map is now offscreen
      int bHeight = bitmap.getHeight();
      int bWidth = bitmap.getWidth();
      
      boolean freezeX = false;
      boolean freezeY = false;
      
      if((x+bWidth) < screenWidth) {
        x = screenWidth-bWidth;
        freezeX = true;
      }
      else if(x > 0) {
        x = 0;
        freezeX = true;
      }
      
      if((y+bHeight < screenHeight)) {
        y = screenHeight-bHeight;
        freezeY = true;
      }
      else if(y > 0) {
        y = 0;
        freezeY = true;
      }
      
      if(freezeY && !freezeX) {
        state = MAP_STATE.FREEZE_Y;
      }
      else if (!freezeY && freezeX) {
        state = MAP_STATE.FREEZE_X;
      }
      else if (freezeY && freezeX) {
        state = MAP_STATE.FREEZE_BOTH;
      }
      else {
        state = MAP_STATE.MOVEMENT;
      }
      
    }
  }


  
}

Java Source Code List

• Back to Game/simple  ↑