diff --git a/data/actors.lua b/data/actors.lua
index 2c71e3b..19bd6e6 100644
--- a/data/actors.lua
+++ b/data/actors.lua
@@ -2,6 +2,7 @@ actors={
     list={},
 
     add=function(actor)
+        actor.dx,actor.dy=0,0
         table.insert(actors.list, actor)
     end,
 
@@ -12,6 +13,44 @@ actors={
     end,
 
     update=function()
-        
+        for i,v in ipairs(actors.list) do
+            if v.dx==0 and v.dy==0 then
+                if v.path then
+                    v.path.pos=v.path.pos+1
+                    if v.path.pos > #v.path.route then
+                        v.path=nil
+                    else
+                        local step=string.sub(v.path.route,v.path.pos,v.path.pos)
+                        if step=='u' then
+                            --check collision!
+                            v.y=v.y-1
+                            v.dy=-8
+                        elseif step=='d' then
+                            --check collision!
+                            v.y=v.y+1
+                            v.dy=8
+                        elseif step=='l' then
+                            --check collision!
+                            v.x=v.x-1
+                            v.dx=-8
+                        elseif step=='r' then
+                            --check collision!
+                            v.x=v.x+1
+                            v.dx=8
+                        end
+                    end
+                end
+            else
+                if v.dx > 0 then
+                    v.dx=v.dx-2
+                elseif v.dx < 0 then
+                    v.dx=v.dx+2
+                elseif v.dy > 0 then
+                    v.dy=v.dy-2
+                elseif v.dy < 0 then
+                    v.dy=v.dy+2
+                end
+            end
+        end
     end
 }
\ No newline at end of file