Feature: Support CB 0x10 for RVs and ships.

diff -r 2e40a7d66e8a src/newgrf_callbacks.h
--- a/src/newgrf_callbacks.h	Wed Nov 17 20:41:03 2010 +0100
+++ b/src/newgrf_callbacks.h	Wed Nov 17 20:42:29 2010 +0100
@@ -279,7 +279,7 @@
  * Some callbacks are always used and don't have a mask.
  */
 enum VehicleCallbackMask {
-	CBM_VEHICLE_VISUAL_EFFECT  = 0, ///< Visual effects and wagon power (trains only)
+	CBM_VEHICLE_VISUAL_EFFECT  = 0, ///< Visual effects and wagon power (trains, road vehicles and ships)
 	CBM_VEHICLE_LENGTH         = 1, ///< Vehicle length (trains and road vehicles)
 	CBM_VEHICLE_LOAD_AMOUNT    = 2, ///< Load amount
 	CBM_VEHICLE_REFIT_CAPACITY = 3, ///< Cargo capacity after refit
diff -r 2e40a7d66e8a src/roadveh_cmd.cpp
--- a/src/roadveh_cmd.cpp	Wed Nov 17 20:41:03 2010 +0100
+++ b/src/roadveh_cmd.cpp	Wed Nov 17 20:42:29 2010 +0100
@@ -188,6 +188,9 @@
 		u->rcache.cached_veh_length = GetRoadVehLength(u);
 		v->rcache.cached_total_length += u->rcache.cached_veh_length;
 
+		/* Update visual effect */
+		v->UpdateVisualEffect();
+
 		/* Invalidate the vehicle colour map */
 		u->colourmap = PAL_NONE;
 	}
@@ -1477,6 +1480,8 @@
 
 	if (v->IsInDepot() && RoadVehLeaveDepot(v, true)) return true;
 
+	v->ShowVisualEffect();
+
 	/* Check how far the vehicle needs to proceed */
 	int j = RoadVehAccelerate(v);
 
diff -r 2e40a7d66e8a src/ship_cmd.cpp
--- a/src/ship_cmd.cpp	Wed Nov 17 20:41:03 2010 +0100
+++ b/src/ship_cmd.cpp	Wed Nov 17 20:42:29 2010 +0100
@@ -156,6 +156,8 @@
 void Ship::UpdateCache()
 {
 	this->vcache.cached_max_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, ShipVehInfo(this->engine_type)->max_speed);
+
+	this->UpdateVisualEffect();
 }
 
 Money Ship::GetRunningCost() const
@@ -446,6 +448,8 @@
 
 	CheckShipLeaveDepot(v);
 
+	v->ShowVisualEffect();
+
 	if (!ShipAccelerate(v)) return;
 
 	GetNewVehiclePosResult gp = GetNewVehiclePos(v);