SDL : Comments added for SDLkeyEvent class

signed-off-by: Geoffrey Hecht  <geoffrey.hecht@gmail.com>

diff --git a/lib/mnit_linux/sdl.nit b/lib/mnit_linux/sdl.nit
index 1032a5d..fe5341d 100644 (file)
--- a/lib/mnit_linux/sdl.nit
+++ b/lib/mnit_linux/sdl.nit
@@ -343,11 +343,16 @@ class SDLKeyEvent
                end
        end
 
+        # Return true if the key is down, false otherwise
        redef fun is_down do return down
 
+        # Return true if the key is the up arrow
        redef fun is_arrow_up do return key_name == "up"
+       # Return true if the key is the left arrow
        redef fun is_arrow_left do return key_name == "left"
+       # Return true if the key is the down arrow
        redef fun is_arrow_down do return key_name == "down"
+       # Return true if the key is the right arrow
        redef fun is_arrow_right do return key_name == "right"
 end