(require :L5)

(var yellow nil) ; #ffe470
(var dark nil) ; #403830

(fn setup []
  (size 640 480)
  (textSize 100)
  (set yellow (color 255 228 112))
  (set dark (color 64 56 48)))

(local steps (* 24 60))
(var step 0)

(lambda lpad [num] (if (< num 10) (.. "0" num) num))
(lambda time [num]
  (let [hour (floor (map num 0 steps 0 24))
       min (- num (* hour 60))]
    (.. (lpad hour) ":" (lpad min))))

(var pause false)
(var won false)

(fn key-pressed []
  (when (= key "space") (set pause (not pause))))

(local goal-time (floor (random 0 steps)))

(fn draw []
  (when (and (not won) (not pause)) (set step (+ step 1)))
  (when (>= step steps) (set step 0))
  (let [
        half (/ steps 2)
        color-step (if (> step half) (- half (- step half)) step)
        current-color (lerpColor dark yellow (map color-step 0 half 0 1))]
    (background current-color))
    (text (time step) 175 150)
    (text (time goal-time) 175 250)
    (when (and pause (= goal-time step)) (set won true))
    (when won (text "YOU WIN" 100 400)))

{
  :s setup
  :d draw
  :k key-pressed
}