Fix crash caused by stop rail and 8b4487c (#15)

2017-03-28 18:01:42 +02:00 · 2017-03-28 18:01:42 +02:00 · acf697cd43
parent 8b4487c2b8
commit acf697cd43
1 changed files with 6 additions and 2 deletions
--- a/cart_entity.lua
+++ b/cart_entity.lua
@ -264,8 +264,12 @@ function cart_entity:on_step(dtime)
 			end
 		end

-		-- Slow down or speed up, depending on Y direction
-		acc = acc + dir.y * -2
+		if acc then
+			-- Slow down or speed up, depending on Y direction
+			acc = acc + dir.y * -2
+		else
+			acc = 0
+		end

 		if self.old_dir.y ~= 1 and not self.punched then
 			-- Stop the cart swing between two rail parts (handbrake)