Add main menu (#1)

Il est caché pour l'instant parce que c'est plus rapide à debug le reste pour le moment

Reviewed-on: #1
Co-authored-by: Persson-dev <sim16.prib@gmail.com>
Co-committed-by: Persson-dev <sim16.prib@gmail.com>

src/MainMenu.cpp

@@ -0,0 +1,47 @@
+#include "MainMenu.h"
+
+#include <godot_cpp/classes/resource_loader.hpp>
+#include <godot_cpp/classes/scene_tree.hpp>
+
+using namespace godot;
+
+static constexpr char MainScenePath[] = "res://Scenes/Levels/world.tscn";
+
+namespace blitz {
+
+void MainMenu::_bind_methods() {}
+
+MainMenu::MainMenu() {}
+
+MainMenu::~MainMenu() {}
+
+void MainMenu::_ready() {
+	Node* container = find_child("Container");
+	DEV_ASSERT(container);
+
+	m_JoinButton = Object::cast_to<Button>(container->find_child("JoinButton"));
+	m_CreateButton = Object::cast_to<Button>(container->find_child("CreateButton"));
+	m_QuitButton = Object::cast_to<Button>(container->find_child("QuitButton"));
+
+	DEV_ASSERT(m_JoinButton);
+	DEV_ASSERT(m_CreateButton);
+	DEV_ASSERT(m_QuitButton);
+
+	m_JoinButton->connect("pressed", callable_mp(this, &MainMenu::OnJoinPressed));
+	m_CreateButton->connect("pressed", callable_mp(this, &MainMenu::OnCreatePressed));
+	m_QuitButton->connect("pressed", callable_mp(this, &MainMenu::OnQuitPressed));
+}
+
+void MainMenu::OnJoinPressed() {
+	get_tree()->change_scene_to_file(MainScenePath);
+}
+
+void MainMenu::OnCreatePressed() {
+	get_tree()->change_scene_to_file(MainScenePath);
+}
+
+void MainMenu::OnQuitPressed() {
+	get_tree()->quit();
+}
+
+}  // namespace blitz