PCircleShape.java

/**
 * Copyright 2013 The Loon Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package loon.physics;

import loon.core.geom.Circle;

public class PCircleShape extends PShape {

	float rad;
	private Circle mcircle;

	public PCircleShape(float px, float py, float radius, float angle,
			float density) {
		_dens = density;
		_type = PShapeType.CIRCLE_SHAPE;
		_localPos.set(px, py);
		rad = radius;
		_localAng = angle;
		mm = rad * rad * 3.141593F * _dens;
		ii = (mm * rad * rad * 2.0F) / 5F;
		this.mcircle = new Circle(px, py, radius);
	}

	void calcAABB() {
		if (_parent == null) {
			return;
		} else {
			_aabb.set(_pos.x - rad, _pos.y - rad, _pos.x + rad, _pos.y + rad);
			return;
		}
	}

	public float getRadius() {
		return rad;
	}

	void update() {
	}

	public Circle getCircle() {
		return mcircle;
	}

}