modules/world: add speed variables

examples/gameplay/moveplayer/actors/player.lua

@@ -7,21 +7,21 @@ function Player:new(world, x, y)
 end
 
 function Player:update(dt)
-  local dx, dy = 0, 0
+  self.xsp, self.ysp = 0, 0
   if self.keys["up"].isDown then
-    dy = -120 * dt
+    self.ysp = -120 * dt
   end
   if self.keys["down"].isDown then
-    dy =  120 * dt
+    self.ysp =  120 * dt
   end
   if self.keys["left"].isDown then
-    dx = -120 * dt
+    self.xsp = -120 * dt
   end
   if self.keys["right"].isDown then
-    dx =  120 * dt
+    self.xsp =  120 * dt
   end
 
-  self:move(self.x + dx, self.y + dy)
+  Player.super.update(self, dt)
 end
 
 return Player

gamecore/modules/world/actors/actor2D.lua

@@ -48,6 +48,9 @@ function Actor2D:initPhysics(x, y, w, h)
   self.y      = y or 0
   self.w      = w or 0
   self.h      = h or 0
+
+  self.xsp    = 0
+  self.ysp    = 0
 end
 
 function Actor2D:register()
@@ -69,12 +72,17 @@ end
 -- Theses functions are activated every steps
 
 function Actor2D:update(dt)
-  -- here will be update actions
+
+  self:autoMove()
 end
 
 -- MOVEMENT FUNCTIONS
 -- Basic functions from the movement.
 
+function Actor2D:autoMove()
+  self:move(self.x + self.xsp, self.y + self.ysp)
+end
+
 function Actor2D:move(newx, newy)
   self.world:moveActor(self, newx, newy)
 end