95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/*
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* Copyright (c) 2006-2013 Erin Catto http://www.box2d.org
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef DEBUGDRAW_H
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#define DEBUGDRAW_H
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#include <Box2D/Box2D.h>
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struct b2AABB;
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struct GLRenderPoints;
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struct GLRenderLines;
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struct GLRenderTriangles;
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//
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struct Camera
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{
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Camera()
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{
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m_center.Set(0.0f, 20.0f);
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m_extent = 25.0f;
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m_zoom = 1.0f;
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m_width = 1280;
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m_height = 800;
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}
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b2Vec2 ConvertScreenToWorld(const b2Vec2& screenPoint);
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b2Vec2 ConvertWorldToScreen(const b2Vec2& worldPoint);
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void BuildProjectionMatrix(float32* m, float32 zBias);
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b2Vec2 m_center;
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float32 m_extent;
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float32 m_zoom;
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int32 m_width;
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int32 m_height;
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};
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// This class implements debug drawing callbacks that are invoked
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// inside b2World::Step.
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class DebugDraw : public b2Draw
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{
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public:
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DebugDraw();
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~DebugDraw();
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void Create();
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void Destroy();
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void DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color);
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void DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color);
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void DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color);
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void DrawSolidCircle(const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color);
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void DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color);
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void DrawTransform(const b2Transform& xf);
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void DrawPoint(const b2Vec2& p, float32 size, const b2Color& color);
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void DrawString(int x, int y, const char* string, ...);
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void DrawString(const b2Vec2& p, const char* string, ...);
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void DrawAABB(b2AABB* aabb, const b2Color& color);
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void Flush();
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private:
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GLRenderPoints* m_points;
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GLRenderLines* m_lines;
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GLRenderTriangles* m_triangles;
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};
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extern DebugDraw g_debugDraw;
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extern Camera g_camera;
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#endif
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