Bugfix when crashing with no driver

init.lua

@@ -50,6 +50,8 @@ function boat.on_rightclick(self, clicker)
 	local name = clicker:get_player_name()
 	if self.driver and clicker == self.driver then
 		self.driver = nil
+		self.v = 0
+		self.v2 = 0
 		clicker:set_detach()
 		default.player_attached[name] = false
 		default.player_set_animation(clicker, "stand" , 30)
@@ -71,6 +73,7 @@ function boat.on_activate(self, staticdata, dtime_s)
 	end
 	self.last_v = self.v
 	self.v2 = self.v
+	self.count = 0
 end
 
 function boat.get_staticdata(self)
@@ -100,7 +103,15 @@ end
 
 function boat.on_step(self, dtime)
 	self.v = get_v(self.object:getvelocity()) * get_sign(self.v)
+-- count up boat timer, at 100 remove boat and drop boat item
+self.count = self.count + 1
+if self.count == 100 then
+	self.object:remove()
+	local pos = self.object:getpos()
+	minetest.add_item(pos, "boats:boat")
+end
 	if self.driver then
+	self.count = 0
 		local ctrl = self.driver:get_player_control()
 		local yaw = self.object:getyaw()
 		if ctrl.up then
@@ -184,11 +195,13 @@ function boat.on_step(self, dtime)
 
 	-- if boat comes to sudden stop then it has crashed, destroy boat and drop 3x wood
 	if self.v2 - self.v >= 3 then
+	print ("VELOCITY ", self.v2 - self.v)
 		local name = self.driver:get_player_name()
 		self.driver:set_detach()
 		self.object:remove()
 		default.player_attached[name] = false
 		default.player_set_animation(self.driver, "stand" , 30)
+		
 		local pos = self.object:getpos()
 		minetest.add_item(pos, "default:wood 3")
 	end