Implemented Vector3i

include/hydra.h

@@ -37,6 +37,7 @@
 #include "vector3.h"
 #include "vector4.h"
 #include "vector2i.h"
+#include "vector3i.h"
 #include "matrix2.h"
 #include "matrix2x3.h"
 #include "matrix4.h"

include/vector3i.h

@@ -0,0 +1,145 @@
+//
+//  Vector3i.h
+//  Kraken Engine / Hydra
+//
+//  Copyright 2022 Kearwood Gilbert. All rights reserved.
+//
+//  Redistribution and use in source and binary forms, with or without modification, are
+//  permitted provided that the following conditions are met:
+//
+//  1. Redistributions of source code must retain the above copyright notice, this list of
+//  conditions and the following disclaimer.
+//
+//  2. Redistributions in binary form must reproduce the above copyright notice, this list
+//  of conditions and the following disclaimer in the documentation and/or other materials
+//  provided with the distribution.
+//
+//  THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
+//  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+//  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
+//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+//  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+//  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+//  The views and conclusions contained in the software and documentation are those of the
+//  authors and should not be interpreted as representing official policies, either expressed
+//  or implied, of Kearwood Gilbert.
+//
+
+#pragma once
+
+#include <functional> // for hash<>
+
+#include "vector2i.h"
+
+namespace kraken {
+
+class Vector3i
+{
+
+public:
+  union
+  {
+    struct
+    {
+      int x, y, z;
+    };
+    int c[3];
+  };
+
+  void init();
+  void init(int X, int Y, int Z);
+  void init(int v);
+  void init(int* v);
+  void init(const Vector3i& v);
+  static Vector3i Create();
+  static Vector3i Create(int X, int Y, int Z);
+  static Vector3i Create(int v);
+  static Vector3i Create(int* v);
+  static Vector3i Create(const Vector3i& v);
+
+
+  // Vector2 swizzle getters
+  Vector2i xx() const;
+  Vector2i xy() const;
+  Vector2i xz() const;
+  Vector2i yx() const;
+  Vector2i yy() const;
+  Vector2i yz() const;
+  Vector2i zx() const;
+  Vector2i zy() const;
+  Vector2i zz() const;
+
+  // Vector2 swizzle setters
+  void xy(const Vector2i& v);
+  void xz(const Vector2i& v);
+  void yx(const Vector2i& v);
+  void yz(const Vector2i& v);
+  void zx(const Vector2i& v);
+  void zy(const Vector2i& v);
+
+  Vector3i operator +(const Vector3i& b) const;
+  Vector3i operator -(const Vector3i& b) const;
+  Vector3i operator +() const;
+  Vector3i operator -() const;
+  Vector3i operator *(const int v) const;
+  Vector3i operator /(const int v) const;
+
+  Vector3i& operator +=(const Vector3i& b);
+  Vector3i& operator -=(const Vector3i& b);
+  Vector3i& operator *=(const int v);
+  Vector3i& operator /=(const int v);
+
+  bool operator ==(const Vector3i& b) const;
+  bool operator !=(const Vector3i& b) const;
+
+  // Comparison operators are implemented to allow insertion into sorted containers such as std::set
+  bool operator >(const Vector3i& b) const;
+  bool operator <(const Vector3i& b) const;
+
+  int& operator[](unsigned i);
+  int operator[](unsigned i) const;
+
+  int sqrMagnitude() const; // calculate the square of the magnitude (useful for comparison of magnitudes without the cost of a sqrt() function)
+  int magnitude() const;
+
+  void scale(const Vector3i& v);
+
+  static Vector3i Cross(const Vector3i& v1, const Vector3i& v2);
+  static int Dot(const Vector3i& v1, const Vector3i& v2);
+  static Vector3i Min(const Vector3i& v1, const Vector3i& v2);
+  static Vector3i Max(const Vector3i& v1, const Vector3i& v2);
+
+  static Vector3i Min();
+  static Vector3i Max();
+  static Vector3i Zero();
+  static Vector3i One();
+  static Vector3i Forward();
+  static Vector3i Backward();
+  static Vector3i Up();
+  static Vector3i Down();
+  static Vector3i Left();
+  static Vector3i Right();
+  static Vector3i Scale(const Vector3i& v1, const Vector3i& v2);
+};
+static_assert(std::is_pod<Vector3i>::value, "kraken::Vector3i must be a POD type.");
+
+} // namespace kraken
+
+namespace std {
+template<>
+struct hash<kraken::Vector3i>
+{
+public:
+  size_t operator()(const kraken::Vector3i& s) const
+  {
+    size_t h1 = hash<int>()(s.x);
+    size_t h2 = hash<int>()(s.y);
+    size_t h3 = hash<int>()(s.z);
+    return h1 ^ (h2 << 1) ^ (h3 << 2);
+  }
+};
+} // namespace std