Initial commit

king.cpp

@@ -0,0 +1,12 @@
+#include "king.h"
+
+void king::move(int x, int y)
+{
+    this->x = x;
+    this->y = y;
+}
+
+bool king::can_castle(int choice)
+{
+    return choice == 1 ? !castled_left : !castled_right;
+}