add basic main menu

godot/Scenes/Menus/mainmenu.tscn

@@ -0,0 +1,41 @@
+[gd_scene format=3 uid="uid://bqfqg7xwwlxd8"]
+
+[node name="Main Menu" type="MainMenu"]
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+grow_horizontal = 2
+grow_vertical = 2
+size_flags_horizontal = 4
+size_flags_vertical = 4
+
+[node name="Container" type="VBoxContainer" parent="."]
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -228.512
+offset_top = -89.5
+offset_right = 228.512
+offset_bottom = 89.5
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="JoinButton" type="Button" parent="Container"]
+layout_mode = 2
+theme_override_font_sizes/font_size = 35
+text = "Join Game"
+
+[node name="CreateButton" type="Button" parent="Container"]
+layout_mode = 2
+theme_override_font_sizes/font_size = 35
+text = "Create Game"
+
+[node name="QuitButton" type="Button" parent="Container"]
+layout_mode = 2
+theme_override_font_sizes/font_size = 35
+text = "Quit"

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

src/MainMenu.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <godot_cpp/classes/button.hpp>
+#include <godot_cpp/classes/control.hpp>
+
+namespace blitz {
+
+class MainMenu : public godot::Control {
+	GDCLASS(MainMenu, godot::Control)
+  protected:
+	static void _bind_methods();
+
+  public:
+	MainMenu();
+	~MainMenu();
+
+	// Godot overrides
+	void _ready() override;
+
+  private:
+	godot::Button* m_JoinButton;
+    godot::Button* m_CreateButton;
+    godot::Button* m_QuitButton;
+
+    void OnJoinPressed();
+    void OnCreatePressed();
+    void OnQuitPressed();
+};
+
+}  // namespace blitz

src/register_types.cpp

@@ -3,6 +3,7 @@
 #include "FirstPersonPlayer.h"
 #include "Player.h"
 #include "SpringArmPivot.h"
+#include "MainMenu.h"
 
 #include <gdextension_interface.h>
 #include <godot_cpp/core/defs.hpp>
@@ -10,14 +11,19 @@
 
 using namespace godot;
 
+static void RegisterClasses() {
+	ClassDB::register_class<blitz::Player>();
+	ClassDB::register_class<blitz::SpringArmPivot>();
+	ClassDB::register_class<blitz::FirstPersonPlayer>();
+	ClassDB::register_class<blitz::MainMenu>();
+}
+
 void initialize_example_module(ModuleInitializationLevel p_level) {
 	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
 		return;
 	}
 
-	ClassDB::register_class<blitz::Player>();
-	ClassDB::register_class<blitz::SpringArmPivot>();
-	ClassDB::register_class<blitz::FirstPersonPlayer>();
+	RegisterClasses();
 }
 
 void uninitialize_example_module(ModuleInitializationLevel p_level) {