Simple Correct Jump Movement with Character Controller

Questions & Answers
1

Hi all!

I’ve been trying to make my NPCs jump, but calculating a nice movement is a level above my skills :stuck_out_tongue: With the script I got now, the jump seems to get cut off 2/3’s into it, after wich the gameobject falls straight down. Another problem is that the more horizontal speed, the more horizontal the jump direction gets. I have to use a charachter controller, since that is what my AI script is based upon…

So the question is: How do I smooth out the jump itself, and set a correct jump direction, not only controlled by speed?

This is how my script looks like so far:

var speed : float = 6.0;
var jumpSpeed : float = 8.0;
var gravity : float = 20.0;

private var direction : Vector3 = Vector3.zero;

function Update() {
var controller : CharacterController = GetComponent(CharacterController);
	if (controller.isGrounded) {
	// We are grounded, so recalculate
	// move direction directly from axes
	direction = Vector3(Input.GetAxis("Horizontal"), 0,
	Input.GetAxis("Vertical"));
	direction = transform.TransformDirection(direction);
	direction *= speed;
		if (Input.GetButton ("Jump")) {
		Invoke("Jump", 0);
 		}
    }
}

function Jump (){
     direction.y = jumpSpeed;
}

function LateUpdate (){
      var controller : CharacterController = GetComponent(CharacterController);
      // Apply gravity
         direction.y -= gravity * Time.deltaTime;
     // Move the controller
     controller.Move(direction * Time.deltaTime);
}

In this test script I’m trying to make a player controlled cube jump. I do the jumping in a seperate function, so I can copy that function to my AI script, where it will be called upon when needed.

Thanks in advance!

Thomas

2

Well, i’ve done some reading, and decided to go for Rigidbodies after all.

Here’s a good guide about when to use a charachter controller or rigidbody: