gamnit: lapse clock on resume, so `update` ignores the time in the background

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

diff --git a/lib/gamnit/flat/flat_core.nit b/lib/gamnit/flat/flat_core.nit
index 8f9bff1..59f4b37 100644 (file)
--- a/lib/gamnit/flat/flat_core.nit
+++ b/lib/gamnit/flat/flat_core.nit
@@ -495,6 +495,12 @@ redef class App
                for sprite in ui_sprites do sprite.needs_update
        end
 
+       redef fun on_resume
+       do
+               clock.lapse
+               super
+       end
+
        redef fun frame_core(display)
        do
                # Check errors