i want to set maximum speed

Questions & Answers
1

i want to set maximum speed. What is my fault ? My English very very bad, sorry…

using UnityEngine;
using System.Collections;

public class platetet : MonoBehaviour {
	//Movement Speed
	public float speed = 2;

	//Body Max Speed
	public float maxSpeed = 50f;

	//Flap Force
	public float force = 100;

	//JetpackForce
	public float jetpackForce = 50;

	// Use this for initialization
	void Start () {

		//Hareket edeceği yer
		GetComponent<Rigidbody2D> ().velocity = Vector2.up * speed;

	}

	// Update is called once per frame
	void Update ()
	{
		//Flap
		if (Input.GetKeyDown (KeyCode.Space)) {
			GetComponent<Rigidbody2D> ().AddForce (Vector2.up * force);
		}
		for (var i = 0; i < Input.touchCount; ++i) {
			if (Input.GetTouch (i).phase == TouchPhase.Began)
				GetComponent<Rigidbody2D> ().AddForce (Vector2.up * force);
			foreach (Touch touch in Input.touches)
				GetComponent<Rigidbody2D> ().AddForce (Vector2.up * jetpackForce);
			if(GetComponent<Rigidbody2D>().velocity.magnitude > maxSpeed)
			{
				GetComponent<Rigidbody2D>().velocity = GetComponent<Rigidbody2D>().velocity.normalized * maxSpeed;
			}
		}
	}
}
2

Well, there are numerous places where you have random spaces where there shouldn’t be:

Vector2.up force

What is your intention here?

On the line which I think you are trying to limit the velocity (the case where the velocity magnitude is more than the maxspeed) you actually have incorrect syntax, as well as the fact that I’m not sure you are accessing the velocity component correctly (you would need to get the gameobjects

GetComponent().velocity = GetComponent().velocity.normalized maxSpeed;

Not only this, but there are spelling mistakes in places. I think you might benefit from using an editor which highlights errors like this. You can get Visual Studio Community edition for free from here Visual Studio 2022 Community Edition – Download Latest Free Version

You might also benefit from following a tutorial that does similar things, creating simple movement etc. Take a look at brackeys on youtube as an example.