org.andengine.util.algorithm.collision

Class ShapeCollisionChecker

java.lang.Object

org.andengine.util.algorithm.collision.BaseCollisionChecker

org.andengine.util.algorithm.collision.ShapeCollisionChecker

Direct Known Subclasses:

LineCollisionChecker, RectangularShapeCollisionChecker

public class ShapeCollisionChecker
extends BaseCollisionChecker

(c) 2010 Nicolas Gramlich (c) 2011 Zynga Inc.

Since:

11:50:19 - 11.03.2010

Constructor Summary

Constructors

Constructor and Description
ShapeCollisionChecker()

Method Summary

Modifier and Type	Method and Description
static boolean	checkCollision(float[] pVerticesA, int pVertexCountA, float[] pVerticesB, int pVertexCountB) Calls through to checkCollisionSub(float[], int, int, int, int, int, float[], int, int, int, int) with the default parameters internally used by different AndEngine primitives.
static boolean	checkCollision(float[] pVerticesA, int pVertexCountA, int pVertexOffsetXA, int pVertexOffsetYA, int pVertexStrideA, float[] pVerticesB, int pVertexCountB, int pVertexOffsetXB, int pVertexOffsetYB, int pVertexStrideB)
static boolean	checkContains(float[] pVertices, int pVertexCount, float pX, float pY) Calls through to checkContains(float[], int, int, int, int, float, float) with the default parameters internally used by different AndEngine primitives.
static boolean	checkContains(float[] pVertices, int pVertexCount, int pVertexOffsetX, int pVertexOffsetY, int pVertexStride, float pX, float pY) Works with complex polygons!

Methods inherited from class org.andengine.util.algorithm.collision.BaseCollisionChecker

checkAxisAlignedRectangleCollision, checkAxisAlignedRectangleContains, relativeCCW

Methods inherited from class java.lang.Object

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

Constructor Detail

ShapeCollisionChecker

public ShapeCollisionChecker()

Method Detail

checkCollision

public static boolean checkCollision(float[] pVerticesA,
                                     int pVertexCountA,
                                     float[] pVerticesB,
                                     int pVertexCountB)

Calls through to checkCollisionSub(float[], int, int, int, int, int, float[], int, int, int, int) with the default parameters internally used by different AndEngine primitives.

Parameters:

pVerticesA -

pVertexCountA - the number of vertices in pVerticesA

pVerticesB -

pVertexCountB - the number of vertices in pVerticesB

Returns:

checkCollision

public static boolean checkCollision(float[] pVerticesA,
                                     int pVertexCountA,
                                     int pVertexOffsetXA,
                                     int pVertexOffsetYA,
                                     int pVertexStrideA,
                                     float[] pVerticesB,
                                     int pVertexCountB,
                                     int pVertexOffsetXB,
                                     int pVertexOffsetYB,
                                     int pVertexStrideB)

Parameters:

pVerticesA -

pVertexCountA - the number of vertices in pVerticesA

pVertexOffsetXA -

pVertexOffsetYA -

pVertexStrideA -

pVerticesB -

pVertexCountB - the number of vertices in pVerticesB

pVertexOffsetXB -

pVertexOffsetYB -

pVertexStrideB -

Returns:

checkContains

public static boolean checkContains(float[] pVertices,
                                    int pVertexCount,
                                    float pX,
                                    float pY)

Calls through to checkContains(float[], int, int, int, int, float, float) with the default parameters internally used by different AndEngine primitives.

Parameters:

pVertices -

pVertexCount - the number of vertices in pVertices

pX -

pY -

Returns:

checkContains

public static boolean checkContains(float[] pVertices,
                                    int pVertexCount,
                                    int pVertexOffsetX,
                                    int pVertexOffsetY,
                                    int pVertexStride,
                                    float pX,
                                    float pY)

Works with complex polygons!

Parameters:

pVertices -

pVertexCount - the number of vertices in pVertices

pVertexOffsetX -

pVertexOffsetY -

pVertexStride -

pX -

pY -

Returns:

true when the point defined by (pX, pY) is inside the polygon defined by pVertices, false. If the point is exactly on the edge of the polygon, the result can be true or false.

See Also:

http://alienryderflex.com/polygon/