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-/*
-* Copyright (c) 2011 Erin Catto http://box2d.org
-*
-* This software is provided 'as-is', without any express or implied
-* warranty. In no event will the authors be held liable for any damages
-* arising from the use of this software.
-* Permission is granted to anyone to use this software for any purpose,
-* including commercial applications, and to alter it and redistribute it
-* freely, subject to the following restrictions:
-* 1. The origin of this software must not be misrepresented; you must not
-* claim that you wrote the original software. If you use this software
-* in a product, an acknowledgment in the product documentation would be
-* appreciated but is not required.
-* 2. Altered source versions must be plainly marked as such, and must not be
-* misrepresented as being the original software.
-* 3. This notice may not be removed or altered from any source distribution.
-*/
-
-#ifndef B2_DRAW_H
-#define B2_DRAW_H
-
-#include "Box2D/Common/b2Math.h"
-
-/// Color for debug drawing. Each value has the range [0,1].
-struct b2Color
-{
- b2Color() {}
- b2Color(float32 rIn, float32 gIn, float32 bIn, float32 aIn = 1.0f)
- {
- r = rIn; g = gIn; b = bIn; a = aIn;
- }
-
- void Set(float32 rIn, float32 gIn, float32 bIn, float32 aIn = 1.0f)
- {
- r = rIn; g = gIn; b = bIn; a = aIn;
- }
-
- float32 r, g, b, a;
-};
-
-/// Implement and register this class with a b2World to provide debug drawing of physics
-/// entities in your game.
-class b2Draw
-{
-public:
- b2Draw();
-
- virtual ~b2Draw() {}
-
- enum
- {
- e_shapeBit = 0x0001, ///< draw shapes
- e_jointBit = 0x0002, ///< draw joint connections
- e_aabbBit = 0x0004, ///< draw axis aligned bounding boxes
- e_pairBit = 0x0008, ///< draw broad-phase pairs
- e_centerOfMassBit = 0x0010 ///< draw center of mass frame
- };
-
- /// Set the drawing flags.
- void SetFlags(uint32 flags);
-
- /// Get the drawing flags.
- uint32 GetFlags() const;
-
- /// Append flags to the current flags.
- void AppendFlags(uint32 flags);
-
- /// Clear flags from the current flags.
- void ClearFlags(uint32 flags);
-
- /// Draw a closed polygon provided in CCW order.
- virtual void DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) = 0;
-
- /// Draw a solid closed polygon provided in CCW order.
- virtual void DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) = 0;
-
- /// Draw a circle.
- virtual void DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color) = 0;
-
- /// Draw a solid circle.
- virtual void DrawSolidCircle(const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color) = 0;
-
- /// Draw a line segment.
- virtual void DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color) = 0;
-
- /// Draw a transform. Choose your own length scale.
- /// @param xf a transform.
- virtual void DrawTransform(const b2Transform& xf) = 0;
-
- /// Draw a point.
- virtual void DrawPoint(const b2Vec2& p, float32 size, const b2Color& color) = 0;
-
-protected:
- uint32 m_drawFlags;
-};
-
-#endif