mirror of
https://github.com/love2d/love.git
synced 2026-08-15 15:51:12 +02:00
Alex Szpakowski
86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
/**
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* Copyright (c) 2006-2017 LOVE Development Team
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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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*
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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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*
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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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#pragma once
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// LOVE
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#include "common/Object.h"
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#include "common/Matrix.h"
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#include "common/Vector.h"
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namespace love
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{
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namespace math
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{
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class Transform : public Object
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{
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public:
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static love::Type type;
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Transform();
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Transform(const Matrix4 &m);
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Transform(float x, float y, float a, float sx, float sy, float ox, float oy, float kx, float ky);
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virtual ~Transform();
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Transform *clone();
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Transform *inverse();
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void apply(Transform *other);
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void translate(float x, float y);
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void rotate(float angle);
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void scale(float x, float y);
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void shear(float x, float y);
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void reset();
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void setTransformation(float x, float y, float a, float sx, float sy, float ox, float oy, float kx, float ky);
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love::Vector transformPoint(love::Vector p) const;
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love::Vector inverseTransformPoint(love::Vector p);
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const Matrix4 &getMatrix() const;
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void setMatrix(const Matrix4 &m);
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private:
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inline const Matrix4 &getInverseMatrix()
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{
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if (inverseDirty)
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{
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inverseDirty = false;
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inverseMatrix = matrix.inverse();
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}
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return inverseMatrix;
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}
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Matrix4 matrix;
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bool inverseDirty;
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Matrix4 inverseMatrix;
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}; // Transform
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} // math
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} // love
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