/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* 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 com.badlogic.gdx.physics.box2d;
import com.badlogic.gdx.math.Vector2;
/** A circle shape.
* @author mzechner */
public class CircleShape extends Shape {
// @off
/*JNI
#include <Box2D/Box2D.h>
*/
public CircleShape () {
addr = newCircleShape();
}
private native long newCircleShape (); /*
return (jlong)(new b2CircleShape( ));
*/
protected CircleShape (long addr) {
this.addr = addr;
}
/** {@inheritDoc} */
@Override
public Type getType () {
return Type.Circle;
}
/** Returns the position of the shape */
private final float[] tmp = new float[2];
private final Vector2 position = new Vector2();
public Vector2 getPosition () {
jniGetPosition(addr, tmp);
position.x = tmp[0];
position.y = tmp[1];
return position;
}
private native void jniGetPosition (long addr, float[] position); /*
b2CircleShape* circle = (b2CircleShape*)addr;
position[0] = circle->m_p.x;
position[1] = circle->m_p.y;
*/
/** Sets the position of the shape */
public void setPosition (Vector2 position) {
jniSetPosition(addr, position.x, position.y);
}
private native void jniSetPosition (long addr, float positionX, float positionY); /*
b2CircleShape* circle = (b2CircleShape*)addr;
circle->m_p.x = positionX;
circle->m_p.y = positionY;
*/
}