moved from h4570/tyra

src/engine/include/models/math/vector3.hpp

@@ -0,0 +1,60 @@
+/*
+# ______       ____   ___
+#   |     \/   ____| |___|    
+#   |     |   |   \  |   |       
+#-----------------------------------------------------------------------
+# Copyright 2020, tyra - https://github.com/h4570/tyra
+# Licenced under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+*/
+
+#ifndef _TYRA_VECTOR3_
+#define _TYRA_VECTOR3_
+
+#include <tamtypes.h>
+
+class Math; // Forward definition
+
+/** https://en.wikipedia.org/wiki/Vector_(mathematics_and_physics) */
+class Vector3
+{
+
+public:
+    union
+    {
+        struct
+        {
+            float x;
+            float y;
+            float z;
+        };
+        float xyz[3] __attribute__((__aligned__(16)));
+    };
+
+    Vector3(float x, float y, float z);
+    Vector3(const Vector3 &v);
+    Vector3();
+    ~Vector3();
+
+    Vector3 operator+(Vector3 v);
+    Vector3 operator-(const Vector3 &v);
+    Vector3 operator*(Vector3 &v);
+    Vector3 operator*(float t);
+    Vector3 operator/(float t);
+    Vector3 operator-(void);
+
+    static u8 shouldBeBackfaceCulled(const Vector3 *t_cameraPos, const Vector3 *v0, const Vector3 *v1, const Vector3 *v2);
+    u8 collidesSquare(Vector3 &t_min, Vector3 &t_max);
+    u8 isOnSquare(Vector3 &t_min, Vector3 &t_max);
+    float length();
+    void normalize();
+    void setByLerp(const Vector3 &v1, const Vector3 &v2, const float t_interp);
+    float innerProduct(Vector3 &v);
+    void set(Vector3 &v);
+    void set(float x, float y, float z);
+    void copy(Vector3 &v);
+    float distanceTo(Vector3 &v);
+    void print();
+};
+
+#endif