OnCollisionEnter not working with Platform and Ball game

Questions & Answers
1

Hello, I have a Ball which moves based on user input with a rigidbody and a collider,
and I have a platform named “Start”, which is where the ball is first placed. Start has a collider, but no rigidbody

I have a script attached to the Start platform named Start.cs, which is supposed to say something in the log if anything collides with it.

Here is the code for Start.cs

`
using UnityEngine;
using System.Collections;

public class Start : MonoBehaviour {	
	
	
	// Update is called once per frame
	void Update () {		
	
	}
	
	public void onCollisionEnter(Collision collision)
	{
		Debug.Log("The battle has begun");
	}
		
}
`

Apparently, nothing shows up in the Log with my code. However, I have another code attached to the Ball named Movement.cs which has a Working OnCollisionEnter function, which can actually leave something in the log if it collides with something.

Below is the part of the code of Movement.cs, particularly the portion with OnCollisionEnter()

`

using UnityEngine;
using System.Collections;

public class Movement : MonoBehaviour {
   
	bool canjump = true;
	int noofcollisions = 0;
	
	
	
	void OnCollisionEnter(Collision collision)
		{
			canjump = true;
			
			Debug.Log("Collided with " + collision.gameObject.name + " " + noofcollisions + " times");
			noofcollisions++;
		
			if(collision.gameObject.name == "Finish")
		{
			Debug.Log("Congratulations!!! You have won the game!!!");
		}
		
			//calculate distance of jump
			
			//Debug.Log(GameObject.Find("Ball").transform.position.x);
		
		}
	
}
`

What causes the OnCollisionEnter function of my Start platform to not work? How can I fix this problem? Cheers.

2

When writing Unity JavaScript or C# scripts, it is very important to check spelling and case of methods calls. A function called Foo() is not the same as a function called foo().

Looking at your original code, you have coded:

public void onCollisionEnter(Collision collision)

where what I believe you mean to code was

public void OnCollisionEnter(Collision collision)

Note the first character of the function name.