Files
sml-projects/shell/rgfw-loop.sml

56 lines
1.4 KiB
Standard ML

structure RgfwLoop =
struct
fun loop (window, app) =
if Rgfw.shouldCloseWindow window then
Rgfw.closeWindow window
else
let
val _ = Gles3.clearColor (0.89, 0.89, 0.89, 1.0)
val _ = Gles3.clear ()
val app = Updater.update app
val () = Rgfw.swapBuffers window
in
loop (window, app)
end
local
fun loop (io, acc, lastCharWasNewline) =
case TextIO.inputLine io of
SOME str =>
let
val endsWithNewline =
String.size str > 0
andalso String.sub (str, String.size str - 1) = #"\n"
in
loop (io, LineGap.append (str, acc), endsWithNewline)
end
| NONE =>
if lastCharWasNewline then
LineGap.goToStart acc
else
let val acc = LineGap.append ("\n", acc)
in LineGap.goToStart acc
end
in
fun ioToLineGap (io, acc) = loop (io, acc, false)
end
fun main () =
let
val window = Rgfw.createWindow ("shf", 0, 0, 1920, 1080)
val () = Gles3.enableDepthTest ()
(* load file intol gap buffer and create initial app *)
val io = TextIO.openIn "temp.txt"
val lineGap = ioToLineGap (io, LineGap.empty)
val _ = TextIO.closeIn io
val app = AppType.init (lineGap, 1920, 1080, Time.now ())
in
loop (window, app)
end
end
val _ = RgfwLoop.main ()