Animation don't want to play

[ReWixon]

Can someone tell me why this isn’t working? I tried Trigger too but still dont work. Help!

[Kurt-Dekker]

Press play, select the object, open the Animator panel, go into the parameters and flip it by hand… does it animate?

If not, fix the animation / animator.

If so, then the problem is in the code.

You must find a way to get the information you need in order to reason about what the problem is.

What is often happening in these cases is one of the following:

• the code you think is executing is not actually executing at all
• the code is executing far EARLIER or LATER than you think
• the code is executing far LESS OFTEN than you think
• the code is executing far MORE OFTEN than you think
• the code is executing on another GameObject than you think it is

To help gain more insight into your problem, I recommend liberally sprinkling Debug.Log() statements through your code to display information in realtime.

Doing this should help you answer these types of questions:

• is this code even running? which parts are running? how often does it run? what order does it run in?
• what are the values of the variables involved? Are they initialized? Are the values reasonable?
• are you meeting ALL the requirements to receive callbacks such as triggers / colliders (review the documentation)

Knowing this information will help you reason about the behavior you are seeing.

You can also put in Debug.Break() to pause the Editor when certain interesting pieces of code run, and then study the scene

You could also just display various important quantities in UI Text elements to watch them change as you play the game.

If you are running a mobile device you can also view the console output. Google for how on your particular mobile target.

Here’s an example of putting in a laser-focused Debug.Log() and how that can save you a TON of time wallowing around speculating what might be going wrong:

Coroutine missing hint and error

This is so unnecessary. Use the beauty and power of instantly and immediately putting a Debug.Log() statement into the very start of the coroutine, right at the top. Do this always at the very first sign of trouble or question in your mind. The instant you did this you would see “Oh man, this code is simply not getting run!” And you could LASER-FOCUS 100% your efforts on studying what you expect to run it, eg., the call location, and isolate why it is not running. You would look at literall…

Also, if you post a code snippet, ALWAYS USE CODE TAGS:

How to use code tags: Using code tags properly

[ReWixon]

Parameters are working. Function wont work at all but i dont know why(Tag is exactly the same) Btw. Sorry for not using Code tags, its my first post.

[Kurt-Dekker]

@ReWixon

but i dont know why

And that is why we sprinkle Debug.Log() statements everywhere to find out why! Nobody here knows. See above.

Also, go read the documentation for collisions, specifically the requirements and precise function names. Even one character off makes it fail.

[ReWixon]

@Kurt-Dekker

And that is why we sprinkle Debug.Log() statements everywhere to find out why! Nobody here knows. See above.

But everything else works.

[kdgalla]

I’m thinking that you actually meant to use one of Unity’s built-in collision handling messages. Maybe you meant to name your method OnColliderEnter2D instead?

Don’t use the name “Collision2D” anyway, since there is already a class named “Collision2D” in the Unity API.

[ReWixon]

@kdgalla

I’m thinking that you actually meant to use one of Unity’s built-in collision handling messages. Maybe you meant to name your method OnColliderEnter2D instead?

Don’t use the name “Collision2D” anyway, since there is already a class named “Collision2D” in the Unity API.

still dont work ):

[Kurt-Dekker]

@ReWixon

still dont work ):

You seem defiantly unwilling to go to the documentation and LOOK how that function is spelled.

Hint: it isn’t spelled OnColliderEnter2D and it isn’t spelled Collision2D

We’ll wait until you get back from the docs.