           startTime: Date.now()
           zone: d
         pickupZoneToRemove.push id # Remove from current pickup zones
-
-    for id, wrapper of @dropZones
-      if wrapper.zone.isNearMe(@car.getCurrentPosition())
-        wrapper.zone.hide()
-        speedRatio = (Date.now() - wrapper.startTime) / @dropDuration
-        EventBus.get('RideEngine').post(DropEvent.NAME, new DropEvent(wrapper.zone, speedRatio))
-        dropZoneToRemove.push id
+        currentRides++
 
     for e in pickupZoneToRemove
       delete @pickupZones[e]

      zone.hide()
    for id, wrapper of @dropZones
      wrapper.zone.hide()
  
  onCarMove: (e) ->
    pickupZoneToRemove = []
    dropZoneToRemove = []

    for id, zone of @pickupZones
      if zone.isNearMe(@car.getCurrentPosition())
        zone.hide()
        EventBus.get('RideEngine').post(PickupEvent.NAME, new PickupEvent(zone))

class RideEngine
  @MAX_RIDES = 4

  constructor: (grid, car) ->
    @grid = grid
    @car = car
