Stephen Seo
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41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
#ifndef JUMPARTIFACT_DOT_COM_DEMO_0_3D_HELPERS_H_
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#define JUMPARTIFACT_DOT_COM_DEMO_0_3D_HELPERS_H_
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// standard library includes
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#include <optional>
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// third party includes
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#include <raylib.h>
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extern Matrix get_identity_matrix();
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extern Matrix get_rotation_matrix_about_z(float radians);
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extern Matrix get_rotation_matrix_about_y(float radians);
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extern Matrix get_rotation_matrix_about_x(float radians);
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extern Matrix translate_matrix_x(float distance);
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extern Matrix translate_matrix_y(float distance);
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extern Matrix translate_matrix_z(float distance);
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extern Matrix translate_matrix_xyz(float x, float y, float z);
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extern Matrix scale_matrix_xyz(float x, float y, float z);
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extern Matrix operator*(const Matrix &a, const Matrix &b);
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/// Returns true if intersects with xz plane.
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extern bool ray_to_xz_plane(const Ray &ray, float &x_out, float &z_out);
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/// plane.direction is plane normal, plane.position is position on plane.
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extern std::optional<Vector3> ray_to_plane(const Ray &ray, const Ray &plane);
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// Unimplemented as this function isn't really needed and it exposes some
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// weirdness regarding column-major matrices.
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// extern Vector4 operator*(const Matrix &m, const Vector4 &v);
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extern Vector3 operator+(const Vector3 &a, const Vector3 &b);
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extern Vector3 operator-(const Vector3 &a, const Vector3 &b);
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extern Vector3 operator*(Vector3 vec3, float factor);
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extern Vector3 operator*(Matrix mat, Vector3 vec3);
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#endif
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