com.jme3.bullet.collision.shapes

Class HeightfieldCollisionShape

java.lang.Object

com.jme3.bullet.collision.shapes.CollisionShape

com.jme3.bullet.collision.shapes.HeightfieldCollisionShape

All Implemented Interfaces:

com.jme3.export.Savable

public class HeightfieldCollisionShape
extends CollisionShape

Uses Bullet Physics Heightfield terrain collision system. This is MUCH faster than using a regular mesh. There are a couple tricks though: -No rotation or translation is supported. -The collision bbox must be centered around 0,0,0 with the height above and below the y-axis being equal on either side. If not, the whole collision box is shifted vertically and things don't collide as they should.

Author:

Brent Owens

Field Summary

Fields

Modifier and Type	Field and Description
protected java.nio.ByteBuffer	bbuf
protected boolean	flipQuadEdges
protected float[]	heightfieldData
protected float	heightScale
protected int	heightStickLength
protected int	heightStickWidth
protected float	maxHeight
protected float	minHeight
protected int	upAxis

Fields inherited from class com.jme3.bullet.collision.shapes.CollisionShape

margin, objectId, scale

Constructor Summary

Constructors

Constructor and Description
HeightfieldCollisionShape()
HeightfieldCollisionShape(float[] heightmap)
HeightfieldCollisionShape(float[] heightmap, com.jme3.math.Vector3f scale)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	createCollisionHeightfield(float[] heightmap, com.jme3.math.Vector3f worldScale)
com.jme3.scene.Mesh	createJmeMesh()
protected void	createShape()
void	read(com.jme3.export.JmeImporter im)
void	write(com.jme3.export.JmeExporter ex)

Methods inherited from class com.jme3.bullet.collision.shapes.CollisionShape

finalize, getMargin, getObjectId, getScale, setMargin, setObjectId, setScale

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

heightStickWidth

protected int heightStickWidth

heightStickLength

protected int heightStickLength

heightfieldData

protected float[] heightfieldData

heightScale

protected float heightScale

minHeight

protected float minHeight

maxHeight

protected float maxHeight

upAxis

protected int upAxis

flipQuadEdges

protected boolean flipQuadEdges

bbuf

protected java.nio.ByteBuffer bbuf

Constructor Detail

HeightfieldCollisionShape

public HeightfieldCollisionShape()

HeightfieldCollisionShape

public HeightfieldCollisionShape(float[] heightmap)

HeightfieldCollisionShape

public HeightfieldCollisionShape(float[] heightmap,
                         com.jme3.math.Vector3f scale)

Method Detail

createCollisionHeightfield

protected void createCollisionHeightfield(float[] heightmap,
                              com.jme3.math.Vector3f worldScale)

createShape

protected void createShape()

createJmeMesh

public com.jme3.scene.Mesh createJmeMesh()

write

public void write(com.jme3.export.JmeExporter ex)
           throws java.io.IOException

Specified by:

write in interface com.jme3.export.Savable

Overrides:

write in class CollisionShape

Throws:

java.io.IOException

read

public void read(com.jme3.export.JmeImporter im)
          throws java.io.IOException

Specified by:

read in interface com.jme3.export.Savable

Overrides:

read in class CollisionShape

Throws:

java.io.IOException