78 lines
No EOL
1.6 KiB
C++
78 lines
No EOL
1.6 KiB
C++
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#ifndef SPECTRE_MATH_TRANSFORM_H
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#define SPECTRE_MATH_TRANSFORM_H
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#include "Vector2.h"
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#include "Matrix4.h"
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// Class representing a transformation matrix.
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class Transform
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{
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public :
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// Constructors
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Transform();
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Transform(const Matrix4f& matrix);
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Transform(float a00, float a01, float a02,
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float a10, float a11, float a12,
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float a20, float a21, float a22);
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// Shorthand for applying translate/rotate/scale.
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// Order of operations:
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// 1. translate
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// 2. rotate
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// 3. scale
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void set(Vector2f translate, float rotate, Vector2f scale);
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void setMatrix(const Matrix4f& matrix);
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// Reset the transformation (Identity matrix).
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void reset();
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// Axis.
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Vector2f getUpVector() const;
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Vector2f getRightVector() const;
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// Translation
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Transform& translate(float x, float y);
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Transform& translate(Vector2f offset);
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// Rotation
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Transform& rotate(float theta);
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// Scale
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Transform& scale(float x, float y);
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Transform& scale(Vector2f offset);
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Transform& scale(float s);
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Transform& multiply(const Transform& other);
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Vector2f transformPoint(float x, float y) const;
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Vector2f transformPoint(const Vector2f& v) const;
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// Get the transformation as a 4x4 matrix.
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Matrix4f& getMatrix();
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const Matrix4f& getMatrix() const;
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Matrix4f getRotationMatrix() const;
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float* getRawMatrix();
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const float* getRawMatrix() const;
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protected :
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Matrix4f m_matrix;
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};
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Transform operator*(const Transform& a, const Transform& b);
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Transform& operator*=(Transform& a, const Transform& b);
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Vector2f operator*(const Transform& t, const Vector2f& v);
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#endif /* SPECTRE_MATH_TRANSFORM_H */ |