How do make a gameObject accelerate downwards?

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1

I have a prefab that is constantly spawning and falling downwards. How do I them start off slower and then have them drop down faster every 30 seconds?

I tried using a rigidbody, but nothing seems to be occurring other than changing the constant falling speed.

2 Answers

2
2

Increasing Drag in the Rigidbody component will start it out falling slower. Then you can either decrease the drag, or ad force to the rigidbody, or both.

gameObject.transform.rigidbody.AddForce(-Vector3.up * 100);
gameObject.transform.rigidbody.drag -= 1;

If you want the speed to change every 30sec, you need to create a timer. Such as:

var time : float;
function Update() {
	time += 1 * Time.deltaTime; //Increase the variable 'time' by 1, every seceond
	if(time >= 30) {
		//Increase Speed
		time = 0;
	}
}

This is assuming you are using JavaScript?

I am using JavaScript. Do I insert this into a text mesh or do I attach to the gameObject. I did both, but nothing seems to be happening. I'm only using the timer script.

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Attach it to whatever you want to fall. And, the first part of code I posted will need to be put with the second part, where it says "//Increase Speed".

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I'm receiving this error: There is no 'Rigidbody' attached to the "Star(Clone)" game object, but a script is trying to access it. You probably need to add a Rigidbody to the game object "Star(Clone)". Or your script needs to check if the component is attached before using it. And my game seems to be lagging.

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3

private float time;
private float fallForce; //Start this at whatever speed or make it public so you can change it in the inspector

void FixedUpdate()
{
    rigidbody.AddForce(0, fallForce, 0);
   
    if(time > 30)
    {
        fallForce += 2f; //Every second after 30 secs will increase the fallForce by 2 or whatever number you use
    }
    time += 1;
}

In C#