tyrav2 init

engine/inc/renderer/models/color.hpp

@@ -0,0 +1,84 @@
+/*
+# ______       ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022, tyra - https://github.com/h4570/tyra
+# Licenced under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+*/
+
+#pragma once
+
+#include <string>
+#include "math/vec4.hpp"
+
+namespace Tyra {
+
+class Color {
+ public:
+  union {
+    struct {
+      /** 0-255 */
+      float r;
+      /** 0-255 */
+      float g;
+      /** 0-255 */
+      float b;
+      /** 0-128 */
+      float a;
+    };
+    VECTOR rgba alignas(sizeof(float) * 4);
+  };
+
+  static void copy(Color* out, const float* in);
+  static inline void copy(Color* out, const Color& in) { copy(out, in.rgba); }
+
+  /** Initialize Color without setting default values */
+  Color() {}
+
+  /** Initialize Color with provided values */
+  Color(const float& r, const float& g = 255.0F, const float& b = 255.0F,
+        const float& a = 128.0F)
+      : r(r), g(g), b(b), a(a) {}
+
+  /** Initialize Color with other Color values */
+  Color(const Color& v) { copy(this, v); }
+
+  /** Initialize Color with float[4] values */
+  explicit Color(const float* v) { copy(this, v); }
+
+  void operator=(const Color& v);
+
+  inline void set(const Color& v) { copy(this, v.rgba); }
+  inline void set(const float* v) { copy(this, v); }
+  void set(const float& r, const float& g = 255.0F, const float& b = 255.0F,
+           const float& a = 128.0F);
+
+  /**
+   * Update this vector by linear interpolation between two vertices
+   * @param v1 Before vertex
+   * @param v2 After vertex
+   * @param interp State of interpolation
+   */
+  void lerp(const Color& v1, const Color& v2, const float& interp);
+
+  /**
+   * Get vector by linear interpolation between two vertices
+   * @param v1 Before vertex
+   * @param v2 After vertex
+   * @param interp State of interpolation
+   */
+  static Color getByLerp(const Color& v1, const Color& v2, const float& interp);
+
+  void print() const;
+  void print(const char* name) const;
+  void print(const std::string& name) const { print(name.c_str()); }
+  std::string getPrint(const char* name = nullptr) const;
+
+ private:
+  static void setLerp(Color* output, const Color& v1, const Color& v2,
+                      const float& interp);
+};
+
+}  // namespace Tyra