com.badlogic.gdx.physics.box2d
Class PolygonShape

java.lang.Object
  com.badlogic.gdx.physics.box2d.Shape
      com.badlogic.gdx.physics.box2d.PolygonShape

public class PolygonShape
extends Shape

Nested Class Summary

Nested classes/interfaces inherited from class com.badlogic.gdx.physics.box2d.Shape

Shape.Type

Constructor Summary

PolygonShape()
Constructs a new polygon

Method Summary

Shape.Type	getType() Get the type of this shape.
void	getVertex(int index, Vector2 vertex) Returns the vertex at the given position.
int	getVertexCount()
void	set(float[] vertices) Copy vertices from the given float array.
void	set(float[] vertices, int offset, int len) Copy vertices from the given float array, taking into account the offset and length.
void	set(Vector2[] vertices) Copy vertices.
void	setAsBox(float hx, float hy) Build vertices to represent an axis-aligned box.
void	setAsBox(float hx, float hy, Vector2 center, float angle) Build vertices to represent an oriented box.

Methods inherited from class com.badlogic.gdx.physics.box2d.Shape

dispose, getChildCount, getRadius, setRadius

Methods inherited from class java.lang.Object

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

Constructor Detail

PolygonShape

public PolygonShape()

Constructs a new polygon

Method Detail

getType

public Shape.Type getType()

Get the type of this shape. You can use this to down cast to the concrete shape.

Specified by:

getType in class Shape

Returns:

the shape type.

set

public void set(Vector2[] vertices)

Copy vertices. This assumes the vertices define a convex polygon. It is assumed that the exterior is the the right of each edge.

set

public void set(float[] vertices)

Copy vertices from the given float array. It is assumed the vertices are in x,y order and define a convex polygon. It is assumed that the exterior is the the right of each edge.

set

public void set(float[] vertices,
                int offset,
                int len)

Copy vertices from the given float array, taking into account the offset and length. It is assumed the vertices are in x,y order and define a convex polygon. It is assumed that the exterior is the the right of each edge.

setAsBox

public void setAsBox(float hx,
                     float hy)

Build vertices to represent an axis-aligned box.

Parameters:

hx - the half-width.

hy - the half-height.

setAsBox

public void setAsBox(float hx,
                     float hy,
                     Vector2 center,
                     float angle)

Build vertices to represent an oriented box.

Parameters:

hx - the half-width.

hy - the half-height.

center - the center of the box in local coordinates.

angle - the rotation in radians of the box in local coordinates.

getVertexCount

public int getVertexCount()

Returns:

the number of vertices

getVertex

public void getVertex(int index,
                      Vector2 vertex)

Returns the vertex at the given position.

Parameters:

index - the index of the vertex 0 <= index < getVertexCount( )

vertex - vertex