feat: add difficulty selection

src/ui/macroquad/mode_selection.rs

@@ -0,0 +1,44 @@
+use macroquad::{
+    color::GRAY,
+    math::vec2,
+    shapes::draw_rectangle,
+    ui::{hash, root_ui, widgets::Group},
+    window::{next_frame, screen_height, screen_width},
+};
+
+use crate::ui::{
+    macroquad::menu_builder::MenuBuilder,
+    state::GuiState::{self, ServerSelection},
+};
+
+pub async fn draw_mode_selection(state: &mut GuiState) {
+    let menu_size = vec2(screen_width() * 0.5, screen_height() * 0.5);
+    let menu_pos = vec2(
+        screen_width() / 2.0 - menu_size.x / 2.0,
+        screen_height() / 2.0 - menu_size.y / 2.0,
+    );
+
+    let mut menu_builder = MenuBuilder::new(menu_size.x, menu_size.y * 0.1);
+
+    draw_rectangle(menu_pos.x, menu_pos.y, menu_size.x, menu_size.y, GRAY);
+
+    Group::new(hash!(), menu_size)
+        .position(menu_pos)
+        .ui(&mut root_ui(), |ui| {
+            menu_builder.label(ui, "Mode selection");
+
+            if menu_builder.button(ui, "Singleplayer") {
+                *state = GuiState::DificultySelection;
+            }
+
+            if menu_builder.button(ui, "Multiplayer") {
+                *state = ServerSelection;
+            }
+
+            if menu_builder.button(ui, "Go back") {
+                *state = GuiState::MainMenu;
+            }
+        });
+
+    next_frame().await;
+}