(local Ssc (require :ssc))
(local files (require :game.files))
(local {: pal} (require :editor.tiledraw.iigs))
(import-macros {:sss ! : compile} :ssc.macros)

(local ssc (Ssc))
(compile ssc
  (require ssc.iigs.bootstub)
  (require ssc.iigs.toolbox)
  (require ssc.iigs.graphics)

  (tooltable toolsets
    ToolsetIntegerMath  0x0100
    ToolsetText         0x0100
    ToolsetQuickDraw    0x0100
    ToolsetEventManager 0x0100
    5                   0x0100  ; desk manager
    9                   0x0100) ; ADB

  (buffer hexbuf (cstr "    "))

  (fn printnum (num)
    (long! (ref hexbuf) (HexIt num))
    (WriteCString (far-ref hexbuf)))

  (asm event-buffer)
  (global word event-what)
  (global long event-msg)
  (global long event-when)
  (global word event-y)
  (global word event-x)
  (global word event-mod)

  (fn wait-for-key ()
    (FlushEvents keyDownMask 0)
    (while (not (GetNextEvent keyDownMask (far-ref event-buffer)))
      (yield)))

  (define screen-addr 0xe12000)
  (define screen-size 0x9d00)

  (compile-sprite tile0 [(. files.game.tiles 1 :gfx)] 16 16)
  (compile-sprite tile1 [(. files.game.tiles 2 :gfx)] 16 16)
  (compile-sprite tile2 [(. files.game.tiles 3 :gfx)] 16 16)
  (compile-sprite tile3 [(. files.game.tiles 4 :gfx)] 16 16)
  (asm tiles (jmp tile0) (nop) (jmp tile1) (nop) (jmp tile2) (nop) (jmp tile3) (nop))

  (form set-palette [(fn [ssc index pal]
    (let [addr (+ 0xe19e00 (* index 0x20))
          writes (icollect [icolor [r g b] (ipairs pal)]
                   [[:lda (bit.bor (bit.lshift r 8) (bit.lshift g 4) b)] [:sta (tostring (+ addr (* icolor 2) -2))]])]
      (lume.concat [:block] (table.unpack writes))))])

  (global word userID)

  (fn print-numbers-forever ()
    (let (i 0) (while true
      (printnum i)
      (yield)
      (set! i (+ i 1)))))

  (form itile-to-tile [(fn [ssc itile]
    [:block (ssc:expr-word itile) [:asl] [:asl] [:clc] [:adc #($1:lookup-addr :tiles)]])])

  (global word with-shadowing 0)

  (fn draw-test-tiles (i)
    (when with-shadowing (disable-shadow-writes))
    (let (x 0 y 0 screen 0x2000)
      (while (< y 37)
        (let (tile (itile-to-tile (& (+ x y i) 3)))
          (draw-object screen tile))
        (set! x (+ x 1))
        (if (= x 20)
          (do (set! y (+ y 1))
              (set! x (if (& y 1) 1 0))
              (set! screen (+ screen [(+ 12 (* 160 4))])))
          (set! screen (+ screen 8)))))
    (when with-shadowing
      (enable-shadow-writes)
      (if (= with-shadowing 1)
          (let (x 0 y 0 screen 0x2000)
            (while (< y 12)
              (draw-object screen pei-slam-tile)
              (set! x (+ x 1))
              (if (= x 20)
                (do (set! x 0)
                    (set! y (+ y 1))
                    (set! screen (+ screen [(+ 8 (* 160 15))])))
                (set! screen (+ screen 8)))))
        (let (screen 0x2000 y 0)
          (while (< y 200)
            (draw-object screen pei-slam-scanline)
            (set! screen (+ screen 160))
            (set! y (+ y 1)))))))

  (fn draw-test-tiles-forever ()
    (let (i 0)
      (while true
        (draw-test-tiles i)
        (yield)
        (set! i (+ i 1)))))

  (fn main ()
    (LoadTools (far-ref toolsets))
    (set! userID (MMStartUp))
    (IMStartUp)
    (TextStartUp)
    (QDStartUp 0x2100 0 0 userID)
    (EMStartUp 0x2000 0 0 320 0 200 userID)
    (GrafOn)
    (ClearScreen 0)
    (let (screen 0x12000) (while (< screen 0x1a000)
      (word! screen 0)
      (set! screen (+ screen 2))))
    (set-palette 0 [pal])
    (SetAllSCBs 0)

    (enable-shadow-writes)
    (draw-test-tiles 0)
    (wait-for-key)
    (let (tile-task (new-task (ref draw-test-tiles-forever)))
      (wait-for-key)
      (set! with-shadowing 1)
      (wait-for-key)
      (set! with-shadowing 2)
      (wait-for-key)
      (set! with-shadowing false)
      (reset-task tile-task (ref yield-forever))
      (wait-for-key))

    (GrafOff)

    (EMShutDown)
    (QDShutDown)
    (TextShutDown)
    (IMShutDown)
    (MMShutDown userID)))

(ssc:assemble)