I don't know how to explain this logic, but I want to set something to true every 1 second then set it to false when other second passed. A good example of this logic is a simple light that swaps from red to blue every 1 second. I am trying to do this with tasks but I don't know how to make the task change to different color in every execution. I tried using a boolean, but that didn't work. Basically I want to create a logic with a repeater and a command block on every side of the repeater. Sorry! I didn't knew how to explain this :I I hope you can help me!