Hello. I am very very new to unity and c# and i’m trying to create a simple 2d game where when you press play it launches a rocket but i have no idea how to make the rocket launch upon pressing play.
hmmm… you want the rocket to launch when you press Editor Play button? Or a Play button in your app?
Either way, its a case of a script being on your rocket and either use the unity Method Start() {} to get things rolling, or, you can use a custom method that is listening for a button click or something.
This is all very elementary, perhaps some youtube tutorials might get you rollin.
Thank you very much
1 Like
I forgot to say this in my other response but i wanted it to happen when you press the play button in the game not the editor play button.
So, this isnt going to work just as easy as copy and paste, but its about the simplest way i can think of to demonstrate implementing something like this . A few tutorials you’ll be good to go .
[SerializeField] float launchForce;
[SerializeField] Button launchButton;
Rigidbody rb;
private void Onisable()
{
launchButton.RemoveListener(Button_LaunchButton);
}
private void OnEnable()
{
rb = GetComponent<Rigidbody>();
launchButton.onClick.AddListener(Button_LaunchButton)
}
private void Button_LaunchButton()
{
rb.AddForce(new Vector3(0, launchForce, 0));
}
Thank you so so much i’ve been stuck here for ages
1 Like
see the edit for removing the listener, and i just noticed this is in 2D, but theory is all the same. good luck,
1 Like
So you’re aware, there’s a Getting Started forum that may be of use to you too.
Also, Unity Learn.
It sounds like you need to stop posting in the forum and start doing tutorials! Here are four great content creators:
Imphenzia / imphenzia - super-basic Unity tutorial:
Jason Weimann:
Brackeys super-basic Unity Tutorial series:
Sebastian Lague Intro to Game Development with Unity and C#:
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!