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b2Draw.h

    00001 /*
    00002 * Copyright (c) 2011 Erin Catto http://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 #include <Box2D/Common/b2Math.h>
    00020
    00022 struct b2Color
    00023 {
    00024         b2Color() {}
    00025         b2Color(float32 r, float32 g, float32 b) : r(r), g(g), b(b) {}
    00026         void Set(float32 ri, float32 gi, float32 bi) { r = ri; g = gi; b = bi; }
    00027         float32 r, g, b;
    00028 };
    00029
    00032 class b2Draw
    00033 {
    00034 public:
    00035         b2Draw();
    00036
    00037         virtual ~b2Draw() {}
    00038
    00039         enum
    00040         {
    00041                 e_shapeBit                              = 0x0001,
    00042                 e_jointBit                              = 0x0002,
    00043                 e_aabbBit                               = 0x0004,
    00044                 e_pairBit                               = 0x0008,
    00045                 e_centerOfMassBit               = 0x0010
    00046         };
    00047
    00049         void SetFlags(uint32 flags);
    00050
    00052         uint32 GetFlags() const;
    00053
    00055         void AppendFlags(uint32 flags);
    00056
    00058         void ClearFlags(uint32 flags);
    00059
    00061         virtual void DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) = 0;
    00062
    00064         virtual void DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) = 0;
    00065
    00067         virtual void DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color) = 0;
    00068
    00070         virtual void DrawSolidCircle(const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color) = 0;
    00071
    00073         virtual void DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color) = 0;
    00074
    00077         virtual void DrawTransform(const b2Transform& xf) = 0;
    00078
    00079 protected:
    00080         uint32 m_drawFlags;
    00081 };

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