GameOfLife: Add choosable patterns

Userland/Games/GameOfLife/Pattern.cpp

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2021, Ryan Wilson <ryan@rdwilson.xyz>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "Pattern.h"
+#include <AK/String.h>
+#include <AK/StringBuilder.h>
+#include <AK/Vector.h>
+#include <LibGUI/Action.h>
+#include <stdio.h>
+
+Pattern::Pattern(Vector<String> pattern)
+{
+    m_pattern = move(pattern);
+}
+
+Pattern::~Pattern()
+{
+}
+
+void Pattern::set_action(GUI::Action* action)
+{
+    m_action = action;
+}
+
+void Pattern::rotate_clockwise()
+{
+    Vector<String> rotated;
+    for (size_t i = 0; i < m_pattern.first().length(); i++) {
+        StringBuilder builder;
+        for (int j = m_pattern.size() - 1; j >= 0; j--) {
+            builder.append(m_pattern.at(j).substring(i, 1));
+        }
+        rotated.append(builder.to_string());
+    }
+    m_pattern = move(rotated);
+}