(define-module (game main)
  #:use-module (game model level)
  #:use-module (game render level)
  #:use-module (chickadee)
  #:use-module (chickadee math rect)
  #:use-module (chickadee math vector)
  #:use-module (chickadee graphics color)
  #:use-module (chickadee graphics sprite)
  #:use-module (chickadee graphics texture)
  #:use-module (chickadee graphics text)
  #:use-module (chickadee graphics tile-map)
  #:use-module (system repl coop-server)
  #:export (launch-game))

(define hero-texture #f)
(define hero-atlas #f)
(define hero-position (vec2 32.0 32.0))
(define level #f)
(define repl #f)

(define (load)
  (render-level-load)
  (set! hero-texture (load-image "assets/images/lr_penguin2.png"))
  (set! hero-atlas (split-texture hero-texture 32 32))
  (set! level (level-parse-file "assets/levels/level-1.map"))
  (render-level-set! level)
  (set! repl (spawn-coop-repl-server)))

(define (update dt)
  (poll-coop-repl-server repl)
  (set-vec2-x! hero-position
               (floor-remainder (+ (vec2-x hero-position) (* 50.0 dt)) 608.0)))

(define (draw-hero i)
  (let ((x (* 64 (remainder i 8)))
        (y (* 32 (quotient i 8)))
        )
    (draw-sprite
     (texture-atlas-ref hero-atlas i)
     (vec2 (+ x 16) y)
     #:scale (vec2 1.0 1.0))
    (draw-text (format #f "~A" i) (vec2 x y) #:color white))
  )



(define (draw _alpha)
  (render-level-draw level)
  (let ((hero-index (+ 56 (remainder (inexact->exact (floor (vec2-x hero-position))) 8))))
    (draw-sprite
     (texture-atlas-ref hero-atlas hero-index)
     (vec2+ hero-position (vec2 16.0 0.0))))
  )

(define (launch-game args)
  (run-game #:load (lambda () (load))
            #:update (lambda (dt) (update dt))
            #:draw (lambda (alpha) (draw alpha))))