diff --git a/src/entities/base.coffee b/src/entities/base.coffee
index db3dc3c..46d36fe 100644
--- a/src/entities/base.coffee
+++ b/src/entities/base.coffee
@@ -1,12 +1,22 @@
 class Base
+  constructor: ->
+    @frame = 0
+
+    window.setInterval @changeAnimation, 500
+
   tick: (tile)->
 
   sprite: ->
-    [0, 0, 8, 8]
+    [@frame*8, 0, 8, 8] 
 
   isMoveable: ->
     false
 
+  changeAnimation: =>
+    if @frame == 3
+      @frame = 0
+    else
+      @frame += 1
+
   spaceProvided: 50
   isDockable: true
-    
diff --git a/src/entities/miner.coffee b/src/entities/miner.coffee
index 82ea4e3..99cf553 100644
--- a/src/entities/miner.coffee
+++ b/src/entities/miner.coffee
@@ -1,12 +1,22 @@
 class Miner
+  constructor: ->
+    @frame = 0
+    window.setInterval @changeAnimation, 500
+
   tick: (tile)->
   	tile.click "left"
 
   sprite: ->
-    [0, 16, 8, 8]
+    [@frame*8, 16, 8, 8] 
 
   isMoveable: ->
     true
 
+  changeAnimation: =>
+    if @frame == 1
+      @frame = 0
+    else
+      @frame += 1
+
   spaceProvided: 5
   isDockable: false