Proper actors implementation

src/actor2.lua

@@ -1,24 +1,27 @@
 --M = {}
 
-actor = {}
-actor.__index = actor
-function actor:new(x,y)
-    local o = setmetatable({}, actor)
-    o.x=x
-    o.y=y
-    o.life=100
-    o.spriteIndex=0
-    return o
+Actor = {
+    life=100,
+    spriteIndex=0,
+}
+--actor.__index = actor
+function Actor:new(new_x,new_y)
+    local o = {
+        x=new_x,
+        y=new_y,    
+    }
+    
+    return setmetatable(o, {__index=self})
 end
 
-function actor:update()
+function Actor:update()
 
 end
 
-function actor:draw()
+function Actor:draw()
     spr(self.spriteIndex,self.x,self.y)
 end
 
 --M.actor = actor
 
-return actor
+return Actor