modules/world: add collision response system

gamecore/modules/world/actors/actor2D.lua

@@ -113,10 +113,22 @@ function Actor2D:autoMove(dt)
   -- note: the friction is applied according to the delta time,
   -- thus the friction should be how much speed is substracted in 1 second
 
+  self:solveAllCollisions(cols)
+
   self.xsp = utils.math.toZero(self.xsp, self.xfrc * dt)
   self.ysp = utils.math.toZero(self.ysp, self.yfrc * dt)
 end
 
+function Actor2D:solveAllCollisions(cols)
+  for i,v in ipairs(cols) do
+    self:collisionResponse(v)
+  end
+end
+
+function Actor2D:collisionResponse(collision)
+  -- here come the response to the collision
+end
+
 function Actor2D:move(dx, dy)
   local cols, colNumber
   self.x, self.y, cols, colNumber = self.world:moveActor(self, dx, dy, self.filter)