diff --git a/ansi-terminal-game.cabal b/ansi-terminal-game.cabal
--- a/ansi-terminal-game.cabal
+++ b/ansi-terminal-game.cabal
@@ -1,5 +1,5 @@
 name:                ansi-terminal-game
-version:             0.6.0.1
+version:             0.6.1.0
 synopsis:            sdl-like functions for terminal applications, based on
                      ansi-terminal
 description:         Library which aims to replicate standard 2d game
diff --git a/changes.txt b/changes.txt
--- a/changes.txt
+++ b/changes.txt
@@ -1,3 +1,10 @@
+0.6.1.0
+-------
+
+- Reworked Timers/Animations interface and documentation
+- Added `lapse` (for Timers/Animations)
+- Released Fri 22 Nov 2019 01:03:37 CET
+
 0.6.0.1
 -------
 
diff --git a/src/Terminal/Game.hs b/src/Terminal/Game.hs
--- a/src/Terminal/Game.hs
+++ b/src/Terminal/Game.hs
@@ -21,6 +21,7 @@
 
 -- xxx timer in contrib o altro modulo?
 -- xxx qptain e jimreed, implement normal movement
+-- todo add readme
 
 module Terminal.Game ( -- * Running
                        FPS,
@@ -40,7 +41,6 @@
                        Timed,
                        creaTimer, creaBoolTimer,
                        creaTimerLoop, creaBoolTimerLoop,
-                       fetchFrame, isExpired,
 
                        -- ** Animations
                        Animation,
@@ -48,10 +48,11 @@
                        -- xxx o di certo Loop e ExpBehaviour
                        Loop(..), ExpBehaviour(..),
                        creaAnimation,
-                       tick, reset,
-                       fetchAniFrame, isAniExpired,
-                       getFrames,
 
+                       -- ** Timers/Animations interface
+                       tick, ticks, reset, lapse,
+                       fetchFrame, isExpired, getFrames,
+
                        -- ** Random numbers
                        StdGen,
                        getStdGen, mkStdGen,
@@ -60,7 +61,7 @@
 
                        -- * Drawing
                        -- | To get to the gist of drawing, check the
-                       -- documentation of '%'.
+                       -- documentation for '%'.
 
                        -- ** Plane
                        Plane,
diff --git a/src/Terminal/Game/Animation.hs b/src/Terminal/Game/Animation.hs
--- a/src/Terminal/Game/Animation.hs
+++ b/src/Terminal/Game/Animation.hs
@@ -28,14 +28,6 @@
 creaAnimation :: Loop -> [(Integer, Plane)] -> Animation
 creaAnimation = creaTimedRes
 
--- | Alias for 'fetchFrame'.
-fetchAniFrame :: Animation -> Plane
-fetchAniFrame = fetchFrame
-
--- | Alias for 'isExpired'.
-isAniExpired :: Animation -> Bool
-isAniExpired = isExpired
-
 
 -------------------
 -- SERIALISATION --
diff --git a/src/Terminal/Game/Layer/Object/IO.hs b/src/Terminal/Game/Layer/Object/IO.hs
--- a/src/Terminal/Game/Layer/Object/IO.hs
+++ b/src/Terminal/Game/Layer/Object/IO.hs
@@ -239,7 +239,7 @@
           -- row = previous row
           blitLine :: Row -> [(Cell, Cell)] -> IO Row
           blitLine pr ccs =
-                CM.foldM blitCell 0 ccs                >>
+                CM.foldM_ blitCell 0 ccs               >>
                 -- have to use setCursorPosition (instead of nextrow) b/c
                 -- on win there is an auto "go-to-next-line" when reaching
                 -- column end and on win it does not do so