improvement

include/omath/Triangle.hpp

@@ -0,0 +1,59 @@
+//
+// Created by Orange on 11/13/2024.
+//
+#pragma once
+#include "omath/Vector3.hpp"
+
+namespace omath
+{
+    template<class Vector>
+    class Triangle final
+    {
+    public:
+        constexpr Triangle(const Vector& vertex1, const Vector& vertex2, const Vector& vertex3)
+            : m_vertex1(vertex1), m_vertex2(vertex2), m_vertex3(vertex3)
+        {
+
+        }
+
+        Vector3 m_vertex1;
+        Vector3 m_vertex2;
+        Vector3 m_vertex3;
+
+        [[nodiscard]]
+        constexpr Vector3 CalculateNormal() const
+        {
+            return (m_vertex1 - m_vertex2).Cross(m_vertex3 - m_vertex1).Normalized();
+        }
+
+        [[nodiscard]]
+        constexpr float SideALength() const
+        {
+            return m_vertex1.DistTo(m_vertex2);
+        }
+
+        [[nodiscard]]
+        constexpr float SideBLength() const
+        {
+            return m_vertex3.DistTo(m_vertex2);
+        }
+
+        [[nodiscard]]
+        constexpr Vector3 SideAVector() const
+        {
+            return m_vertex1 - m_vertex2;
+        }
+
+        [[nodiscard]]
+        constexpr Vector3 SideBVector() const
+        {
+            return m_vertex3 - m_vertex2;
+        }
+
+        [[nodiscard]]
+        constexpr Vector3 MidPoint() const
+        {
+            return (m_vertex1 + m_vertex2 + m_vertex3) / 3;
+        }
+    };
+} // namespace omath