Coupling system

The coupling system helps couple up to rolling stock on the railway.
== How does it work? 🤔 ==
You just need to click on two hooks, then anywhere. There will be a glowing border around the coupler. It would usually be green.
=== Green border ===
A green border on the coupler indicates the two objects are ready to be coupled.
=== Yellow border ===
A yellow border indicates something is in the process of coupling.
=== Red border ===
A red border indicates that the two objects cannot be coupled. This is usually because the engine or piece of rolling stock is moving.
Category:Infrastructure