Trying to reset falling platforms

Questions & Answers
1

I can get the platform to descend and destroy it easily. I need to reset it back to its original state and position after a few seconds however. I have tried stopping the fall and transforming it using another trigger collider but nothing is working. Please help I’m at a standstill tell I find this out.

using UnityEngine;
using System.Collections;

public class FallingPlatforms : MonoBehaviour {

public GameObject Platform;
public Transform start; 
private bool isFalling = false;
private float downSpeed = 0;

void OnTriggerEnter(Collider other)
{
	{
		if (other.gameObject.tag == "Player")
			isFalling = true;
	}
	{
		if (other.gameObject.tag == "PlatformRS")
			isFalling = false;
	}
}

void Update()
{
	if (isFalling) 
	{
		downSpeed += Time.deltaTime/17;
		transform.position = new Vector3(transform.position.x, transform.position.y-downSpeed,
		                                 transform.position.z);
	}
}

}

2

You can simply add a coroutine if you want to define a duration for the object to fall.

public float resetTimer = 5.0f; // time in seconds before reset.
private Vector3 initialPosition;

void Start()
{
	initialPosition = transform.position;
}

// ...
if (other.gameObject.tag == "Player")
	StartCoroutine(FallingPlatform());
	// isFalling = true; // --- replaced line ---
// ...

IEnumerator FallingPlatform()
{
	isFalling = true;
	yield return new WaitForSeconds(resetTimer);
	isFalling = false;
	transform.position = initialPosition;
}

So, here’s what this does… First, you have a timer defined for how long the platform falls before resetting. This can be customized as desired, in case some platforms are intended to fall a very long distance first.

Second, I declare, then in Start() I define a value for the starting position of the platform. When it does reset its position, it needs to know where to go to.

In OnTriggerEnter(), I replaced the boolean variable state change with a call to the coroutine.

In the coroutine, it’s straightforward – Set the boolean so that the platform falls down in Update(). After “resetTimer” seconds have elapsed, change the boolean back and reset the position.