How can I increase Health Value on trigger enter, to another game object?

Questions & Answers
1

I’m new to coding so I’m wasting hours on end trying to figure this out.

I want to add +1 Health to other gameobject (which has Health script attached and controls gameover etc) when the Player gameobject collides with a coin/collectable.

Can somebody help?

This is what I have so far:

using UnityEngine;
using System.Collections;

public class SendHealthToPlayer : MonoBehaviour {

public int healthValue;
private Health triggerforattackbounds;

void Start ()
{
	GameObject gameControllerObject = GameObject.FindGameObjectWithTag ("Player");
	if (gameControllerObject != null)
	{
		triggerforattackbounds = gameObject.GetComponent <Health>();
	}
	if (triggerforattackbounds == null)
	{
		Debug.Log ("Cannot find 'Triggerforattackbounds' script");
	}
}

void OnTriggerEnter (Collider other)
{
	if (other.gameObject.tag == "Player")
	{
		Health triggerforattackbounds = other.GetComponent<healthValue>.currentHealth += 1();
	}
}

}

2

You are pretty close. Line 22 should be:

  other.GetComponent<Health>().currentHealth += 1;

This assumes that the name of the script for health on the player is ‘Health’ and that the variable that stores the health is ‘currentHealth’. I cannot tell what the name you use for the script that has ‘currentHealth’ in it. Note the first formatted line can be deleted.

3

This

Health triggerforattackbounds = other.GetComponent<healthValue>.currentHealth += 1();

should be

Health triggerforattackbounds = other.GetComponent<healthValue>().currentHealth += 1;
4

Thanks for your answers but this give the Playermodel that is controlled +1 Health but not the gameobject called “triggerforattackbounds” which controls gameover etc…
They are both tagged “Player”, is this the wrong way of doing it or can I give both objects +1 Health?

This is the Health Script on “triggerforattackbounds” which I added bit to:

public class Health : MonoBehaviour
{
public AudioClip GameOver;
public AudioClip impactSound;
public AudioClip hurtSound;
public AudioClip deadSound;
public int currentHealth = 3;
public bool takeImpactDmg;
public bool onlyRigidbodyImpact;
public bool respawn;
public string impactFilterTag;
public float hitFlashDelay = 0.1f;
public float flashDuration = 0.9f;
public Color hitFlashColor = Color.red;
public Transform flashObject;
public GameObject spawnOnDeath;
public PauseManager pauseManager;

string message = string.Empty;

[HideInInspector]
public bool dead, flashing;
[HideInInspector]
public Vector3 respawnPos;

private Color originalColor;
private int defHealth, h, hitForce;
private bool hitColor = false;
private float nextFlash, stopFlashTime;
private Throwing throwing;

//setup
void Awake()
{
	if(currentHealth <= 0)
		Debug.LogWarning(transform.name + " has 'currentHealth' set to 0 or less in 'Health' script: it has died upon scene start");
	audio.playOnAwake = false;
	if(flashObject == null)
		flashObject = transform;
	originalColor = flashObject.renderer.material.color;
	defHealth = currentHealth;
	respawnPos = transform.position;
	obj.Volume = 0.4f;
}

//detecting damage and dying
void Update()
{		
	//flash if we took damage
	if (currentHealth < h)
	{
		flashing = true;
		stopFlashTime = Time.time + flashDuration;
		if (hurtSound)
			AudioSource.PlayClipAtPoint(hurtSound, transform.position);
	}
	h = currentHealth;
	
	//flashing
	if (flashing)
	{
		Flash ();
		if (Time.time > stopFlashTime)
		{
			flashObject.renderer.material.color = originalColor;
			flashing = false;
		}
	}
	
	//are we dead?
	dead = (currentHealth <= 0) ? true : false;
	if (dead)
	{
		ResultManager.Instance.ShowResultBox(true,Random.Range(1,4),new CallbackFunction[]{DoReplay});
		AudioSource.PlayClipAtPoint(GameOver, Camera.main.transform.position);
		Time.timeScale = 0;
		obj.Volume = 0.0f;
		Destroy(pauseManager);

    }
}
void DoReplay()
{
	message = "Click replay button";
}

//toggle the flashObject material tint color
void Flash()
{
	flashObject.renderer.material.color = (hitColor) ? hitFlashColor : originalColor;
	if(Time.time > nextFlash)
	{
		hitColor = !hitColor;
		nextFlash = Time.time + hitFlashDelay;
	}
}

//respawn object, or destroy it and create the SpawnOnDeath objects
void Death()
{
	//player drop item
	if(tag == "Player")
		throwing = GetComponent<Throwing>();
	if(throwing && throwing.heldObj && throwing.heldObj.tag == "Pickup")
		throwing.ThrowPickup();
	
	if (deadSound)
		AudioSource.PlayClipAtPoint(deadSound, transform.position);
	flashing = false;
	flashObject.renderer.material.color = originalColor;
	if(respawn)
	{
		if(rigidbody)
			rigidbody.velocity *= 0;
		transform.position = respawnPos;
		dead = false;
		currentHealth = defHealth;
	}
	else
		Destroy (gameObject);
	
	if (spawnOnDeath.Length != 0)
		foreach(GameObject obj in spawnOnDeath)
			Instantiate(obj, transform.position, Quaternion.Euler(Vector3.zero));
}

//calculate impact damage on collision
void OnCollisionEnter(Collision col)
{
	if(!audio.isPlaying && impactSound)
	{
		audio.clip = impactSound;
		audio.volume = col.relativeVelocity.magnitude/30;
		audio.Play();
	}
	
	//make sure we take impact damage from this object
	if (!takeImpactDmg)
		return;
	foreach(string tag in impactFilterTag)			
		if(col.transform.tag == tag)
			return;
	if(onlyRigidbodyImpact && !col.rigidbody)
		return;
	
	//calculate damage
	if(col.rigidbody)
		hitForce = (int)(col.rigidbody.velocity.magnitude/4 * col.rigidbody.mass);
	else
		hitForce = (int)col.relativeVelocity.magnitude/6;
	currentHealth -= hitForce;
	//print (transform.name + " took: " + hitForce + " dmg in collision with " + col.transform.name);
}

}