Box2dLocation.java
/*******************************************************************************
* Copyright 2014 davebaol https://github.com/davebaol
*
* 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.devcharles.piazzapanic.utility.box2d;
import com.badlogic.gdx.ai.utils.Location;
import com.badlogic.gdx.math.Vector2;
/**
* {@link Vector2} wrapper that contains body orientation.
*/
public class Box2dLocation implements Location<Vector2> {
Vector2 position;
float orientation;
public Box2dLocation () {
this.position = new Vector2();
this.orientation = 0;
}
/**
* Create a new location.
* @param position {@link com.badlogic.gdx.physics.box2d.World} position vector.
* @param orientation rotation in radians
*/
public Box2dLocation(Vector2 position, float orientation) {
this.position = position;
this.orientation = orientation;
}
/* (non-Javadoc)
* @see com.badlogic.gdx.ai.utils.Location#getPosition()
*/
@Override
public Vector2 getPosition () {
return position;
}
/* (non-Javadoc)
* @see com.badlogic.gdx.ai.utils.Location#getOrientation()
*/
@Override
public float getOrientation () {
return orientation;
}
/* (non-Javadoc)
* @see com.badlogic.gdx.ai.utils.Location#setOrientation(float)
*/
@Override
public void setOrientation (float orientation) {
this.orientation = orientation;
}
/* (non-Javadoc)
* @see com.badlogic.gdx.ai.utils.Location#newLocation()
*/
@Override
public Location<Vector2> newLocation () {
return new Box2dLocation();
}
/* (non-Javadoc)
* @see com.badlogic.gdx.ai.utils.Location#vectorToAngle(com.badlogic.gdx.math.Vector)
*/
@Override
public float vectorToAngle (Vector2 vector) {
return (float)Math.atan2(-vector.x, vector.y);
}
/* (non-Javadoc)
* @see com.badlogic.gdx.ai.utils.Location#angleToVector(com.badlogic.gdx.math.Vector, float)
*/
@Override
public Vector2 angleToVector (Vector2 outVector, float angle) {
outVector.x = -(float)Math.sin(angle);
outVector.y = (float)Math.cos(angle);
return outVector;
}
}