spacecoords.java

来自「Java mulitplayer strategy game. Adaptati」· Java 代码 · 共 134 行

package net.sf.jawp.api.domain;

import java.io.Serializable;

/**
 * Immutable SpaceCoords object. 
 *
 *
 * @author jarek
 * @version $Revision: 1.8 $
 *
 */
public final class SpaceCoords implements Serializable, Cloneable
{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private final float x;
	
	private final float y;
	
	private final float z;

	
	
	public SpaceCoords(final int x, final int y, final int z)
	{
		super();
		this.x = x;
		this.y = y;
		this.z = z;
	}
	
	public SpaceCoords(final float x, final float y, final float z)
	{
		super();
		this.x = x;
		this.y = y;
		this.z = z;
	}
	
	
	public SpaceCoords( final SpaceCoords other)
	{
		this(other.x, other.y, other.z);
	}

	public  float getX()
	{
		return this.x;
	}

	/*public  void setX(final int x)
	{
		this.x = x;
	}*/

	public  float getY()
	{
		return this.y;
	}

	/*public  void setY(final int y)
	{
		this.y = y;
	}*/

	public  float getZ()
	{
		return this.z;
	}

	/*
	public void setZ(final int z)
	{
		this.z = z;
	}*/
	
	public SpaceCoords add(final SpaceCoords arg)
	{
		return new SpaceCoords( this.x + arg.x, this.y + arg.y, this.z + arg.z);
		/*this.x += arg.x;
		this.y += arg.y;
		this.z += arg.z;*/
	}
	
	public String toString()
	{
		return "(" + getX() + "," + getY() + "," + getZ() + ")"; 
	}
	
	@Override
	public Object clone()
	{
		return new SpaceCoords(this);
	}
	
	@Override
	public boolean equals( final Object o)
	{
		if ( o == this)
		{
			return true;
		}
		return this.equals( (SpaceCoords)o);
	}
	
	public boolean equals( final SpaceCoords o)
	{
		return this.x == o.x && this.y == o.y && this.z == o.z;
	}
	
	@Override
	public int hashCode()
	{
		return 37 + Float.floatToRawIntBits(this.x) 
			^ Float.floatToRawIntBits(this.y) ^ Float.floatToRawIntBits(this.z); 
	}
	
	
	public double getDistance( final SpaceCoords trg)
	{
		final float difx = getX() - trg.getX();
		final float dify = getY() - trg.getY();
		final float difz = getZ() - trg.getZ();
		
		final double dist2 = (difx * difx) + (dify * dify) + (difz * difz);
		//assert LOG.debug("dist2 is:" + dist2);
		return Math.sqrt( dist2);
	}
}