mainmenu draw

src/gui/main_menu.rs

@@ -0,0 +1,46 @@
+use notan::prelude::*;
+use notan::draw::{ Draw, CreateDraw, DrawTextSection, Font };
+use specs::prelude::*;
+use std::collections::HashMap;
+use super::{ FONTSIZE, RunState, DISPLAYWIDTH, TILESIZE, MainMenuSelection };
+use crate::consts::DISPLAYHEIGHT;
+
+pub fn draw_mainmenu(ecs: &World, draw: &mut Draw, atlas: &HashMap<String, Texture>, font: &Font) {
+    let runstate = ecs.read_resource::<RunState>();
+    let selected = match *runstate {
+        RunState::MainMenu { menu_selection } => menu_selection,
+        _ => unreachable!("draw_mainmenu() called outside of MainMenu runstate."),
+    };
+    let save_exists = crate::saveload_system::does_save_exist();
+    const MID_X: f32 = ((DISPLAYWIDTH as f32) * TILESIZE) / 2.0;
+
+    let (x, mut y) = (MID_X, ((DISPLAYHEIGHT as f32) * TILESIZE) / 3.0);
+    draw.text(font, "RUST-RL")
+        .size(FONTSIZE * 2.0)
+        .position(x, y)
+        .h_align_center();
+    y = draw.last_text_bounds().max_y();
+    draw.text(font, "New Game")
+        .size(FONTSIZE)
+        .position(x, y)
+        .h_align_center()
+        .color(get_colour(selected, MainMenuSelection::NewGame));
+    if save_exists {
+        y = draw.last_text_bounds().max_y();
+        draw.text(font, "Load Game")
+            .size(FONTSIZE)
+            .position(x, y)
+            .h_align_center()
+            .color(get_colour(selected, MainMenuSelection::LoadGame));
+    }
+    y = draw.last_text_bounds().max_y();
+    draw.text(font, "Quit")
+        .size(FONTSIZE)
+        .position(x, y)
+        .h_align_center()
+        .color(get_colour(selected, MainMenuSelection::Quit));
+}
+
+fn get_colour(selected: MainMenuSelection, desired: MainMenuSelection) -> Color {
+    if selected == desired { Color::from_rgb(0.0, 1.0, 0.0) } else { Color::WHITE }
+}

src/gui/mod.rs

@@ -64,6 +64,8 @@ pub use cheat_menu::*;
 use crate::consts::events::*;
 mod farlook;
 pub use farlook::*;
+mod main_menu;
+pub use main_menu::*;
 
 /// Gives a popup box with a message and a title, and waits for a keypress.
 #[allow(unused)]

src/main.rs

@@ -493,7 +493,7 @@ fn draw(_app: &mut App, gfx: &mut Graphics, gs: &mut State) {
     let runstate = *gs.ecs.fetch::<RunState>();
     match runstate {
         RunState::MainMenu { .. } => {
-            // Draw main menu
+            gui::draw_mainmenu(&gs.ecs, &mut draw, &gs.atlas, &gs.font);
         }
         RunState::CharacterCreation { .. } => {
             // Draw character creation