How to save a created gameobject for use another scenes

Unity Engine
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1

I want to create a “robocraft” like 2D game for android.
I prepared the basic battlefield and ship creation interface. ship creation interface not in IU but it has its own scene btw.

as you know, the player has to create own battleship in interface. Game, save this battleship and other battleships create by the player and should present choises to the player like " ship_1 , ship_2 " before start a level.

i don’t know how to save “the gameobject and its children” and transfer another scene with optional interface (UI or in scene doesn’t matter)

I need help and I know my English Language is awful.

2

Welcome! Your English is just fine… and I like that you have an idea in mind.

But what you list above is a HUGE set of different things all combined together and interleaved, many different fundamental concepts all necessary to put it all together.

You need to work at understanding each piece one part at a time.

You should set what you have aside and start working on some ultra simple beginner tutorials for coding and making objects persist from scene to scene. Generally the latter is done with either a full load / save system (VERY hard work!), or else you mark the object as DontDestroyOnLoad() and it will stay until you destroy it.

Check out the way this guy went from nothing all the way up to making amazing games and art:

Imphenzia: How Did I Learn To Make Games:

You should check out some of his tutorials, and when you work, keep this in mind:

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!

3

Thank you for advise and taking your time.

Firstly this game is not my first project. Its fourth actually and none of others are finished too. I think i get bored quickly. But yes, i know that i’m still very amateur about game development.

I thought i can finish this idea because its seemed more enjoyable to me. I like sandbox stuff.
I know “PlayerPrefs” and “DontDestroyOnLoad”, i used them my previous projects. But i think these will useless for this issue.

I found this video on youtube;
Do you think this method (with some change) can get closer the solution?

4

I have no idea what solution you actually have in mind. I have not watched the above video and I am not going to.

However, if you do the above tutorial AND YOU FOLLOW STEP #2 ABOVE, you will be able to answer this question for yourself.

I’ll repost Step #2 for you here:

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.