Have menu open and close with Space

game.scm

@@ -107,6 +107,10 @@
 ;; Game state
 (define *state* #f)
 
+;; Menu state
+(define *menu* #f)
+(define *menu:index* 0)
+
 (define *actormap* (make-whactormap))
 (define (call-with-goblins thunk)
   (actormap-churn-run! *actormap* thunk))
@@ -269,6 +273,13 @@
        (load-level! *level-idx*)
        (media-play audio:bg-music)))))
 
+(define (toggle-menu!)
+  (cond
+   (*menu* (set! *menu* #f))
+   (else
+    (set! *menu* menu:main)
+    (set! *menu:index* 0))))
+
 (define (reset-game!)
   (run-script
    (lambda ()
@@ -607,6 +618,22 @@
              (id (level-tile-id tile)))
         (draw-tile context tileset id (vec2-x pos) (vec2-y pos))))))
 
+(define menu:main #(("Select Level" . menu:level-select)
+                    ("Credits" . menu:credits)))
+
+;; (define menu:level-select
+;;   (vector-map
+;;    (lambda (i val)
+;;      (cons (string-append "Level " (string->number i)) i))
+;;    levels))
+
+(define (draw-menu)
+  (do ((x (* 7 tile-width) (+ tile-width x)))
+      ((> x (* 13 tile-width)))
+    (do ((y 0 (+ tile-height y)))
+        ((> y (* 15 tile-height)))
+      (draw-tile context tileset 23 x y))))
+
 (define (draw-level)
   (draw-background)
   (for-each draw-object *objects*)
@@ -750,6 +777,8 @@
            (fill-text context "A -> undo"
                       cx2 baseline))))
       ('win (draw-win)))
+    (when *menu*
+      (draw-menu))
     (draw-current-effect 'post)
     (request-animation-frame draw-callback)))
 (define draw-callback (procedure->external draw))
@@ -761,6 +790,7 @@
 (define key:up "ArrowUp")
 (define key:confirm "Enter")
 (define key:undo "KeyZ")
+(define key:menu "Space")
 
 (define (on-key-down event)
   (let ((key (keyboard-event-code event)))
@@ -776,7 +806,9 @@
      ((string=? key key:undo)
       (on-input-down 'undo))
      ((string=? key key:confirm)
-      (on-input-down 'confirm)))))
+      (on-input-down 'confirm))
+     ((string=? key key:menu)
+      (on-input-down 'menu)))))
 
 (define *gamepad* #f)
 (define *button:left* #f)
@@ -849,7 +881,7 @@
         (with-goblins (update-objects!)))
        ;; REMOVE BEFORE RELEASE!!!!
        ;; ('confirm (next-level!))
-       ))
+       ('menu (toggle-menu!))))
     ;; Pressing any bound input resets the game.
     ('win (reset-game!))))