Android Open Source - hackfmi-ragdoll-physics Central Hurdle

From Project

Back to project page hackfmi-ragdoll-physics.

License

The source code is released under:

GNU General Public License

If you think the Android project hackfmi-ragdoll-physics 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.midtownmadness.bubblecombat.physics;
/*  w  ww .j  a  v  a  2s  .  co m*/
import org.jbox2d.collision.shapes.PolygonShape;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.BodyDef;
import org.jbox2d.dynamics.BodyType;
import org.jbox2d.dynamics.FixtureDef;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;

import com.midtownmadness.bubblecombat.game.GameObject;

public class CentralHurdle extends GameObject {
  
  private static final float ANGULAR_VELOCITY = 7f;
  private static final float BLADE_LENGTH = 20f;
  private static final float BLADE_WIDTH = 5f;
  private float centerY;
  private float centerX;
  private float angle;
  private Bitmap bitmap;
  private Rect bitmapBounds;
  private Rect boundingBox;
  
  public CentralHurdle(float centerX, float centerY, float angle, Bitmap bitmap) {
    this.centerX = centerX;
    this.centerY = centerY;
    this.angle = angle;
    this.bitmap = bitmap;
    bitmapBounds = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    boundingBox = new Rect(
        (int) (centerX - BLADE_WIDTH / 2),
        (int) (centerY - BLADE_LENGTH),
        (int) (centerX + BLADE_WIDTH / 2),
        (int) (centerY));
  }

  @Override
  public void render(Canvas canvas) {
    if(body != null) {
      canvas.save();
      canvas.translate(centerX, centerY);
      canvas.rotate((float) Math.toDegrees(body.getAngle()));
      canvas.translate(-centerX, -centerY);
      canvas.drawBitmap(bitmap, bitmapBounds, boundingBox, null);
      canvas.restore();
    }
  }

  @Override
  public BodyDef buildBodyDef() {
    BodyDef result = new BodyDef();
    result.type = BodyType.KINEMATIC;
    result.angularVelocity = ANGULAR_VELOCITY;
    result.position = new Vec2(centerX, centerY);
    result.angle = angle;
    return result;
  }

  @Override
  public FixtureDef buildFixtureDef() {
    FixtureDef result = new FixtureDef();
    PolygonShape shape = new PolygonShape();
    shape.setAsBox(BLADE_WIDTH / 2, BLADE_LENGTH / 2, new Vec2(BLADE_WIDTH / 2, BLADE_LENGTH / 2), 0);
    result.shape = shape;
    return result;
  }
}

Java Source Code List