81 lines
3.0 KiB
Plaintext
81 lines
3.0 KiB
Plaintext
(
|
|
(globals . (
|
|
(hline1 . (fn () (screen y lo hi color)
|
|
(while (< lo hi)
|
|
(pixel screen lo y color)
|
|
(set lo (+ lo 1)))))
|
|
(vline1 . (fn () (screen x lo hi color)
|
|
(while (< lo hi)
|
|
(pixel screen x lo color)
|
|
(set lo (+ lo 1)))))
|
|
(hline . (fn () (screen y color)
|
|
(hline1 screen y 0 (width screen) color)))
|
|
(vline . (fn () (screen y color)
|
|
(vline1 screen y 0 (height screen) color)))
|
|
(andf . (fn () (a b)
|
|
(if a
|
|
(if b
|
|
1
|
|
())
|
|
())))
|
|
(orf . (fn () (a b)
|
|
(if a
|
|
a
|
|
b)))
|
|
(brline . (fn () (screen x0 y0 x1 y1 color)
|
|
((fn (dx dy sx sy)
|
|
((fn (err)
|
|
(brline1 screen x0 y0 x1 y1 dx dy sx sy err color))
|
|
(+ dx dy)))
|
|
(abs (- x1 x0))
|
|
(- 0 (abs (- y1 y0)))
|
|
(sgn (- x1 x0))
|
|
(sgn (- y1 y0)))))
|
|
(brline1 . (fn () (screen x y xmax ymax dx dy sx sy err color)
|
|
(while (orf (< x xmax) (< y ymax))
|
|
(pixel screen x y color)
|
|
((fn (e2)
|
|
(if (>= e2 dy)
|
|
(set x (+ x sx))
|
|
())
|
|
(if (<= e2 dx)
|
|
(set y (+ y sy)))
|
|
(set err (+ err
|
|
(+
|
|
(if (>= e2 dy)
|
|
dy
|
|
0)
|
|
(if (<= e2 dx)
|
|
dx
|
|
0)))))
|
|
(* err 2)))))
|
|
(read_line_2 . (fn () (keyboard stream)
|
|
((fn (c)
|
|
(if (= c 10)
|
|
stream
|
|
(if (= c 0)
|
|
stream
|
|
(read_line_2 keyboard (write stream c)))))
|
|
(key keyboard))))
|
|
(read_line . (fn () (keyboard)
|
|
(read_line_2 keyboard (stream))))
|
|
(fill_rect . (fn () (screen x1 y1 x2 y2 fill_color)
|
|
(while (< y1 y2)
|
|
(hline1 screen y1 x1 x2 fill_color)
|
|
(set y1 (+ y1 1)))))
|
|
(chessboard . (fn () (screen px)
|
|
(chessboard1 screen px 0 15)))
|
|
(chessboard1 . (fn () (screen px y color)
|
|
(while (< y (height screen))
|
|
(chessboard2 screen px y 0 color)
|
|
(set y (+ y px))
|
|
(set color (- 15 color)))))
|
|
(chessboard2 . (fn () (screen px y x color)
|
|
(while (< x (width screen))
|
|
(fill_rect screen x y (+ x px) (+ y px) color)
|
|
(set x (+ x px))
|
|
(set color (- 15 color)))))
|
|
))
|
|
(sandbox . (+ 1 2))
|
|
)
|