Basic MOVE and JUMP script (Jump trouble)

Question

Hello,

I need help with fixing script, I simply need basic ASDW movement and one hit SPACE jump (forbidden jump while in air) with public floats so I can test it and set the right values. (need to jump around 110cm fast).

I use just Capsule with rigid body, capsule collider.

What I have now work for movement but jump is more like jetpack, it does slowly speed upwards.

I would be glad if somebody would be so kind and helped me with jump issue as I am not programmer, just need this for level design setting/browsing.

Would prefer posting whole functioning code for the same reason.

Thanks in advance.

 using UnityEngine;
 using System.Collections;
  
 public class CharacterController : MonoBehaviour {
     private Rigidbody rg;
     public float speed = 10.0F;
     public float jumpspeed = 10.0F;
    
    
     void Start () {
         Cursor.lockState = CursorLockMode.Locked;
         rg = GetComponent <Rigidbody> ();
     }
    
    
     void Update () {
         float translation = Input.GetAxis ("Vertical") * speed;
         float straffe = Input.GetAxis ("Horizontal") * speed;
         translation *= Time.deltaTime;
         straffe *= Time.deltaTime;
        
         transform.Translate (straffe, 0, translation);
        
         if (Input.GetKey (KeyCode.Space)) {
             Vector3 atas = new Vector3 (0,100,0);
             rg.AddForce(atas * speed);
         }
        
         if (Input.GetKeyDown ("escape"))
             Cursor.lockState = CursorLockMode.None;
        
        
     }
    
 }

Answer 1

First of all, you should use Input.GetKeyDown instead of Input.GetKey at the jumping method, since you want to receive only one input. This will get rid of the jetpack-feeling. Also, you could increase the speed value, so you get the right amount of upward movement.

You can use the Physics.Raycast method to check if there is a solid ground under the capsule. Note that it only works, if the ground object has a collider component attached to it.

     // This should be the half of the height of the capsule plus a bit more
     // Or else it will fail to meet the collider of the ground object
     // This default value is ideal for a capsule with a height of 1.0F
     public float raycastLength = 0.52F;
 
     void Update()
     {
         if(Physics.Raycast(transform.position, -transform.up, raycastLength))
         {
             if(Input.GetKeyDown(KeyCode.Space))
             {
                 Vector3 atas = new Vector3 (0,100,0);
                 rg.AddForce(atas * speed);
             }
         }
     }

Answer 2

I merged two already existing scripts for movement and jumping. Before you use it you will need a tag on the ground (the object that your player stands on) as "Ground". Here it is:

public class PlayerController : MonoBehaviour {
Rigidbody rb; public bool isGrounded; public float jumpHeight = 5f; public float Speed = 2f;

 void Start()
 {
     rb = GetComponent<Rigidbody>();
 }
 void OnCollisionEnter(Collision col)
 {
     if (col.gameObject.tag == ("Ground") && isGrounded == false)
     {
         isGrounded = true;
     }
 }
 void Update()
 {
     if (Input.GetKeyDown(KeyCode.Space) && isGrounded)
     {
         rb.AddForce(new Vector3(0, jumpHeight, 0), ForceMode.Impulse);
         isGrounded = false;
     }
         
 float moveHorizontal = Input.GetAxis("Horizontal");
 float moveVertical = Input.GetAxis("Vertical");
 rb.AddForce(new Vector3(moveHorizontal, 0.0f, moveVertical) * Speed);                
 }

}

Basic MOVE and JUMP script (Jump trouble)

2 Replies

Your answer

Follow this Question

Related Questions