Table of Contents
How to toggle states using Variables
Sometimes you need to toggle states, like doors, levers etc. To make one, the best way is often to use a variable. Let's see how to do that. Let's say I have a lever. First you need to think of what states you need. In this case, I need 2: One for when the lever is toggled and when it is not.
Using a main trigger
First you must create a main trigger for toggling the state. I will use the any key pressed condition. As this can stay true for multiple frames, I need to also include a trigger once:
Adding States
Now you need to add the states. Let's use 1 subevent for each state:
Adding a variable to define the current state
Now you need a variable to define the current state. I will name mine “leverState”:
And also add events for changing the state correctly depending on the previous state:
Make sure the state can be changed only once per frame
The current code is problemetic: It changes the state to toggled and directly after checks that variable to reswitch it to untoggled. We need to add additional conditions to let the state change happen only once per frame: