mis en place la PR de simon sur les couleurs

src/Pieces/Position.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <iostream>
+
+
+/**
+ * A position on a 2D grid
+ */
+struct Position {
+    int x; // x position
+    int y; // y position
+};
+
+
+/**
+ * Addition operator
+ * @return The sums of the coordinates of both positions
+ */
+inline Position operator+(const Position& left, const Position& right) {
+    return Position{left.x + right.x, left.y + right.y};
+}
+
+/**
+ * Additive assignation operator, adds the coordinates of the right position to the left one
+ * @return A reference to the left position
+ */
+inline Position& operator+=(Position& left, const Position& right) {
+    left = left + right;
+    return left;
+}
+
+/**
+ * Substraction operator
+ * @return The difference of the coordinate between the left and right position
+ */
+inline Position operator-(const Position& left, const Position& right) {
+    return Position{left.x - right.x, left.y - right.y};
+}
+
+/**
+ * Substractive assignation operator, substracts the coordinates of the right position from the left one
+ * @return A reference to the left position
+ */
+inline Position& operator-=(Position& left, const Position& right) {
+    left = left + right;
+    return left;
+}
+
+/**
+ * Strict inferiority operator, a position is inferior to another if it is lower or at the same height and more to the left
+ * @return If the left position is inferior to the right position
+ */
+inline bool operator<(const Position& left, const Position& right) {
+    return (left.x == right.x) ? (left.y < right.y) : (left.x < right.x);
+}
+
+/**
+ * Equality operator, two positions are equal if they have the same coordinates
+ * @return If the two positions are equals
+ */
+inline bool operator==(const Position& left, const Position& right) {
+    return (left.x == right.x) && (left.y == right.y);
+}
+
+/**
+ * Stream output operator, adds the coordinates of the position to the stream
+ * @return A reference to the output stream
+ */
+inline std::ostream& operator<<(std::ostream& os, const Position& position) {
+    os << "x: " << position.x << " y: " << position.y;
+    return os;
+}