lib/mnit: use floats to count fps to avoid long size problems

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/mnit/mnit_fps.nit b/lib/mnit/mnit_fps.nit
index a1cf25f..3841bc6 100644 (file)
--- a/lib/mnit/mnit_fps.nit
+++ b/lib/mnit/mnit_fps.nit
@@ -24,7 +24,7 @@ redef class App
        # Zero (or a negative value) means no limit.
        #
        # Applications can modify this value even during the main-loop.
-       var maximum_fps = 60 is writable
+       var maximum_fps = 60.0 is writable
 
        # Current frame-rate
        # Updated each 5 seconds.
@@ -61,15 +61,14 @@ redef class App
                frame_count += 1
 
                var mfps = maximum_fps
-               if mfps <= 0 then return
-               var dt = clock.lapse
-               var target_dt = 1000000000 / mfps
-               var sec = dt.sec
-               var nanosec = dt.nanosec
-               if sec == 0 and nanosec < target_dt then
-                       var sleep_t = target_dt - nanosec
-                       sys.nanosleep(0, sleep_t)
-                       dt = clock.lapse
+               if mfps <= 0.0 then return
+               var lapse = clock.lapse
+               var dt = lapse.to_f
+               var target_dt = 1.0 / mfps
+               if dt < target_dt then
+                       var sleep_t = target_dt - dt
+                       sleep_t.sleep
+                       clock.lapse
                end
        end
 end