Android Open Source - BulletsForever Draw Object Dynamic Arm

From Project

Back to project page BulletsForever.

License

The source code is released under:

GNU General Public License

If you think the Android project BulletsForever listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.bulletsforever.bullets;
//from ww  w.j a  v a 2 s .c o m
import android.graphics.Canvas;

public class DrawObjectDynamicArm extends DrawObject {
  
  public DrawObjectDynamicBoss core;
  public float displacex, displacey;
  public int health;
  public DrawObjectDynamicArm child;
  
  private DrawWorld dw;

  public DrawObjectDynamicArm (DrawWorld dw, DrawObjectDynamicBoss core, float displacex, float displacey) {
    super(dw, 
      core.x + displacex, core.y + displacey,
      0f,  0f, 0f, 0f, 0f, 0f, 
      core.hitboxHalfWidth / 2, core.hitboxHalfHeight / 2 //half as large as boss core
      );
    
    this.bitmap = dw.bl.getBitmap(R.drawable.bossarm, this.drawOffsetX, this.drawOffsetY);
    
    this.core = core;
    this.displacex = displacex;
    this.displacey = displacey;
    this.health = this.core.health / 2;
    this.child = null;
    this.dw = dw;
  }
  
  public void nextFrame(boolean fire, boolean rings) {
    super.nextFrame();

    this.x = this.core.x + this.displacex;
    this.y = this.core.y + this.displacey;
    if (fire)
      this.fire(rings);
  }  
  
  private void fire(boolean rings) {
    
    if(!rings) {
      // Calculate angle between this and player  //For random direction: float angle = this.core.rand.nextInt(360);
      float dx = dw.player.x - this.x;
      float dy = Math.abs(dw.player.y - this.y); 
      float angle;
      if (dy != 0)
        angle = (float)(Math.atan(dx/dy) * 180f / (float)Math.PI); 
      else {
        if (dx > 0) angle = 90;
        else if (dx == 0) angle = 0;
        else angle = 270;
      }
    
      dw.addBullet(new DrawObjectBullet(dw, true, false,
          this.x, this.y, 
          4f, 0f, 0f, 0f, angle, 0f
          ));
    }
    else {
      // Max powered arms shoot ring-pattern bullets
      for (int i = 0; i < 360; i += 36) {
        DrawObjectBullet bullet = new DrawObjectBullet(
            dw, true, true,
            this.x, this.y,
            0f, 0.1f, 0f, 0f, i, 10f
            );
        dw.addBullet(bullet);
      }
    }
  }
  
  public void draw(Canvas canvas) {
    canvas.drawBitmap(bitmap, x - drawOffsetX, y - drawOffsetY, null);
  }

  public void onCollision(DrawObject object) {
    this.health--;
  }

  /* Returns number of children destroyed */
  public int destroyChildren() {
    // suicide bullets in ring-pattern
    for (int i = 0; i < 360; i += 15) {
      DrawObjectBullet bullet = new DrawObjectBullet(
          dw, true, true,
          this.x, this.y,
          4f, 0f, 0f, 0f, i, 10f
          );
      dw.addBullet(bullet);
    }
    AudioSoundPool sp = dw.sp;
    sp.play(dw.sfxBossArm);
    if (this.child == null) 
      return 0;
    return this.child.destroyChildren() + 1;
  }
}

Java Source Code List