SendMessage is not working

Questions & Answers
1

I am trying to call a function to an object by calling the SendMessage function. But it is not working. The first script is like the one below, it is attached to a sphere with rigidbody.

using UnityEngine;

using System.Collections;

public class TouchLogicGravity : TouchLogic {
	
	void Start(){
		this.rigidbody.useGravity = false;
	}

	void OnTouch3D(){
		
		this.rigidbody.useGravity = true;
	}
	

	
	void OnTriggerEnter(Collider other) {
		if (other.gameObject.tag == "platform") {
			other.gameObject.SendMessage("StartFall");
		}
	}
	
}`

And the second script where SendMessage is called is like below, it is attached with a cube with rigidbody:

using UnityEngine;
using System.Collections;

public class PlatformFall : MonoBehaviour {
	public float startTime,currentTime,elapsedTime;
	public bool fall=false;

	// Update is called once per frame
	void Update () {
		if(fall == true){
			currentTime = Time.time;
			elapsedTime = currentTime - startTime;
			if (elapsedTime >= 5) {
				timeTrigger();		
			}
		}
	}

	void StartFall(){
		Debug.Log("Start Fall Started Just Now");
		startTime = Time.time;
		fall = true;
	}

	void timeTrigger(){
		this.gameObject.rigidbody.useGravity = true;
		this.gameObject.rigidbody.isKinematic = false; 
	}
}

I am really perplexed why the SendMessage is not working.

2

I would recommend you to use getComponent

void OnTriggerEnter(Collider other) 
{
   if (other.gameObject.tag == "platform")
   {
   Debug.Log("OnTriggerEnter platform; sending StartFall");
   //other.gameObject.SendMessage("StartFall");
   //just in case the object has a PlatformFall Script attached
   if(other.gameObject.GetComponent<PlatformFall>() != Null)
   {
      other.gameObject.GetComponent<PlatformFall>().StartFall();
   }
   else
   {
      Debug.Log("OnTriggerEnter, but not platform");
   }
}