in-game cheat/debug menu

src/gui/cheat_menu.rs

@@ -0,0 +1,45 @@
+use super::State;
+use rltk::prelude::*;
+
+#[derive(PartialEq, Copy, Clone)]
+pub enum CheatMenuResult {
+    NoResponse,
+    Cancel,
+    Ascend,
+    Descend,
+}
+
+pub fn show_cheat_menu(_gs: &mut State, ctx: &mut Rltk) -> CheatMenuResult {
+    let (x_offset, y_offset) = (1, 10);
+    ctx.print_color(
+        1 + x_offset,
+        1 + y_offset,
+        RGB::named(rltk::RED),
+        RGB::named(rltk::BLACK),
+        "DEBUG MENU! [aA-zZ][Esc.]",
+    );
+    let x = 1 + x_offset;
+    let mut y = 3 + y_offset;
+    let count = 2;
+    let width = 18;
+
+    ctx.draw_box(x, y, width, (count + 1) as i32, RGB::named(rltk::RED), RGB::named(rltk::BLACK));
+    y += 1;
+    // Asc
+    ctx.set(x_offset + 2, y, RGB::named(rltk::YELLOW), RGB::named(rltk::BLACK), rltk::to_cp437('a'));
+    ctx.print(x_offset + 4, y, "ASCEND A FLOOR");
+    y += 1;
+    // Desc
+    ctx.set(x_offset + 2, y, RGB::named(rltk::YELLOW), RGB::named(rltk::BLACK), rltk::to_cp437('d'));
+    ctx.print(x_offset + 4, y, "DESCEND A FLOOR");
+    // Match keys
+    match ctx.key {
+        None => CheatMenuResult::NoResponse,
+        Some(key) => match key {
+            VirtualKeyCode::A => CheatMenuResult::Ascend,
+            VirtualKeyCode::D => CheatMenuResult::Descend,
+            VirtualKeyCode::Escape => CheatMenuResult::Cancel,
+            _ => CheatMenuResult::NoResponse,
+        },
+    }
+}

src/gui/mod.rs

@@ -6,8 +6,10 @@ use super::{
 use rltk::{Rltk, VirtualKeyCode, RGB};
 use specs::prelude::*;
 use std::collections::BTreeMap;
+mod cheat_menu;
 mod letter_to_option;
 mod tooltip;
+pub use cheat_menu::*;
 
 pub fn draw_lerping_bar(
     ctx: &mut Rltk,