High Jump / Speed problem in Trigger - best way to do this.

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1

Welcome, I would like to make a high jump and speed zones in my project.
I am looking for the best way to do this.

I was tried to make this by changing extraHeight variable in CharacterMotor script from other script attached to trigger using GetComponent but I received:

Object reference not set to an instance of an object

What is wrong? What is the best way to do this?

Here is my part of script:

void OnTriggerEnter(Collider other){
		if (other.gameObject.tag == "Player"){
			Debug.Log("Enter!"); //work fine
			GetComponent<CharacterMotor>().jumping.extraHeight=12.0f; //didn't work
		}
	}

Cheers!

2

using UnityEngine;
using System.Collections;

public class jump : MonoBehaviour {
	CharacterMotor playerScript;
	
	// Use this for initialization
	void Start () {
		playerScript = (CharacterMotor)GameObject.FindGameObjectWithTag("Player").GetComponent("CharacterMotor");
	}
	
	// Update is called once per frame
	void Update () {
	
	}

	void OnTriggerEnter(Collider other) {
		 if (other.gameObject.tag == "Player"){
			Debug.Log("Enter!"); //work fine			
			playerScript.jumping.baseHeight=10;
		}
    }
	
	void OnTriggerExit(Collider other) {
		 if (other.gameObject.tag == "Player"){
			Debug.Log("Exit!"); //work fine
			playerScript.jumping.baseHeight=1;
		}
    }

	void OnTriggerStay(Collider other) {
		 if (other.gameObject.tag == "Player"){
			Debug.Log("Stay!"); //work fine
		}
    }	
}

Here is my solution but could anybody check this?
It works but I don’t know why I must use this line:

(CharacterMotor)GameObject.FindGameObjectWithTag(“Player”).GetComponent(“CharacterMotor”);

Could somebody tell why I must use “(CharacterMotor)GameObject” and “GetComponent(“CharacterMotor”)” as string?

This is the best way or I can write it more simply?