I’m planning a game in which a pop-up pops up during a conversation with Unity 2D. However, I succeeded in implementing the conversation using the Dialogue function, but I don’t know how to pop-up events in the middle, so I leave a question.
Also, when the pop-up pops up, I want to activate the contents of the pop-up like an item in the inventory and see it again, but I also don’t know how to make it.
Everything you need for popups and dialogs and inventories and that sorta stuff has been covered by THOUSANDS of youtube tutorials. Nobody is going to retype it in this little box.
Tutorials and example code are great, but keep this in mind to maximize your success and minimize your frustration:
How to do tutorials properly, two (2) simple steps to success:
Step 1. Follow the tutorial and do every single step of the tutorial 100% precisely the way it is shown. Even the slightest deviation (even a single character!) generally ends in disaster. That’s how software engineering works. Every step must be taken, every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly, literally NOTHING can be omitted or skipped.
Fortunately this is the easiest part to get right: Be a robot. Don’t make any mistakes.
BE PERFECT IN EVERYTHING YOU DO HERE!!
If you get any errors, learn how to read the error code and fix your error. Google is your friend here. Do NOT continue until you fix your error. Your error will probably be somewhere near the parenthesis numbers (line and character position) in the file. It is almost CERTAINLY your typo causing the error, so look again and fix it.
Step 2. Go back and work through every part of the tutorial again, and this time explain it to your doggie. See how I am doing that in my avatar picture? If you have no dog, explain it to your house plant. If you are unable to explain any part of it, STOP. DO NOT PROCEED. Now go learn how that part works. Read the documentation on the functions involved. Go back to the tutorial and try to figure out WHY they did that. This is the part that takes a LOT of time when you are new. It might take days or weeks to work through a single 5-minute tutorial. Stick with it. You will learn.
Step 2 is the part everybody seems to miss. Without Step 2 you are simply a code-typing monkey and outside of the specific tutorial you did, you will be completely lost. If you want to learn, you MUST do Step 2.
Of course, all this presupposes no errors in the tutorial. For certain tutorial makers (like Unity, Brackeys, Imphenzia, Sebastian Lague) this is usually the case. For some other less-well-known content creators, this is less true. Read the comments on the video: did anyone have issues like you did? If there’s an error, you will NEVER be the first guy to find it.
Beyond that, Step 3, 4, 5 and 6 become easy because you already understand!
Finally, when you have errors…
Remember: NOBODY here memorizes error codes. That’s not a thing. The error code is absolutely the least useful part of the error. It serves no purpose at all. Forget the error code. Put it out of your mind.
The complete error message contains everything you need to know to fix the error yourself.
The important parts of the error message are:
- the description of the error itself (google this; you are NEVER the first one!)
- the file it occurred in (critical!)
- the line number and character position (the two numbers in parentheses)
- also possibly useful is the stack trace (all the lines of text in the lower console window)
Always start with the FIRST error in the console window, as sometimes that error causes or compounds some or all of the subsequent errors. Often the error will be immediately prior to the indicated line, so make sure to check there as well.
All of that information is in the actual error message and you must pay attention to it. Learn how to identify it instantly so you don’t have to stop your progress and fiddle around with the forum.
Side note: There’s no such thing as “Unity 2D”. 
I’ve already found YouTube. I don’t have it. I came to a foreign UNI.T forum and left a message. If you’re going to leave a long message telling me to look for YouTube and do a tutorial, leave a YouTube link.
If you don’t understand this, just go. I have to tell you that I’m developing 2D games as Unity for a long time, so if you understand it, you won’t have the intelligence to answer it
and I also said that I wanted to combine all those functions and make it. TALK to dog or plant? That’s why your attitude sucks…try to talk and listen with a human being
Okay, if you’re very experienced can you post what you’ve tried?
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Wow. Well there’s no such thing as “Unity 2D” product at all. There’s 2D features just like there’s AI and Audio features; there’s no “Unity AI” or “Unity Audio” which was my point. 2D is a feature, not a product but it seems to have annoyed you. 
And so you know, I wrote all the 2D physics stuff here at Unity over the last 9 years so you could say I’ll qualified to say what I said. 
I’ll ignore the nasty “intelligence” slur and subsequent angry post.
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