Bools are yes or no functions, so if you want to check if something is ready, this is where you would use the bool.

Unlike spawning an object for this, the object will already be in the level, and you simply want to make it visible and enabled, and the opposite through these lines of code.

When you want to check is some code is working you can put in a debug.log which will print a message into the editor for example this will print 'This' when called.

This should be the first step in problem solving code.

While making a game, you might want to spawn an object into the level. This could be an enemy, a pickup or just a piece of a puzzle.

For when you want something to happen after a certain amount of time, rather than every frame in update, you can use a coroutine. This is where you can make something happen after a certain amount of time.

If we want something to happen when things collide, for example, a bullet and an enemy, we will be using these functions.

The only difference is that a trigger is something you enter (a pressure plate) and a collision is something you hit (bullet).

If you want something to happen when a key is pressed, you can set it up with this key press.