| Box2D 2.2.1 A 2D Physics Engine for Games

- Main Page
- Classes
- Files

- File List
- File Members

b2Shape.h

    00001 /*
    00002 * Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
    00003 *
    00004 * This software is provided 'as-is', without any express or implied
    00005 * warranty.  In no event will the authors be held liable for any damages
    00006 * arising from the use of this software.
    00007 * Permission is granted to anyone to use this software for any purpose,
    00008 * including commercial applications, and to alter it and redistribute it
    00009 * freely, subject to the following restrictions:
    00010 * 1. The origin of this software must not be misrepresented; you must not
    00011 * claim that you wrote the original software. If you use this software
    00012 * in a product, an acknowledgment in the product documentation would be
    00013 * appreciated but is not required.
    00014 * 2. Altered source versions must be plainly marked as such, and must not be
    00015 * misrepresented as being the original software.
    00016 * 3. This notice may not be removed or altered from any source distribution.
    00017 */
    00018
    00019 #ifndef B2_SHAPE_H
    00020 #define B2_SHAPE_H
    00021
    00022 #include <Box2D/Common/b2BlockAllocator.h>
    00023 #include <Box2D/Common/b2Math.h>
    00024 #include <Box2D/Collision/b2Collision.h>
    00025
    00027 struct b2MassData
    00028 {
    00030         float32 mass;
    00031
    00033         b2Vec2 center;
    00034
    00036         float32 I;
    00037 };
    00038
    00042 class b2Shape
    00043 {
    00044 public:
    00045
    00046         enum Type
    00047         {
    00048                 e_circle = 0,
    00049                 e_edge = 1,
    00050                 e_polygon = 2,
    00051                 e_chain = 3,
    00052                 e_typeCount = 4
    00053         };
    00054
    00055         virtual ~b2Shape() {}
    00056
    00058         virtual b2Shape* Clone(b2BlockAllocator* allocator) const = 0;
    00059
    00062         Type GetType() const;
    00063
    00065         virtual int32 GetChildCount() const = 0;
    00066
    00070         virtual bool TestPoint(const b2Transform& xf, const b2Vec2& p) const = 0;
    00071
    00077         virtual bool RayCast(b2RayCastOutput* output, const b2RayCastInput& input,
    00078                                                 const b2Transform& transform, int32 childIndex) const = 0;
    00079
    00084         virtual void ComputeAABB(b2AABB* aabb, const b2Transform& xf, int32 childIndex) const = 0;
    00085
    00090         virtual void ComputeMass(b2MassData* massData, float32 density) const = 0;
    00091
    00092         Type m_type;
    00093         float32 m_radius;
    00094 };
    00095
    00096 inline b2Shape::Type b2Shape::GetType() const
    00097 {
    00098         return m_type;
    00099 }
    00100
    00101 #endif

All Classes Files Functions Variables Enumerations Enumerator Defines