Implementing starfall version of engine

koptilnya/engine/differential.txt

@@ -0,0 +1,18 @@
+Differential = class("Differential")
+
+function Differential:initialize(options)
+  options = options or {}
+
+  self.power = options.Power or 1
+  self.coast = options.Coast or 1
+  self.preload = options.Preload or 10
+  self.viscousCoeff = options.ViscousCoeff or 0.9
+
+  self._gearbox = options.Gearbox
+  self._leftWheel = options.LeftWheel
+  self._rightWheel = options.RightWheel
+
+  if self._gearbox then
+    self._gearbox:linkDiff(self)
+  end
+end