koobas.hobune.stream
Adding x amount of energy in another Class issue C#
Hi, after some time spending & searching I have to give up on this one.
On my player I have a c# script named EnergyDrain.cs Which as the name implies drains the player energy over x amount of time.
When the player pickup's an energy boost ( variable ) the player has to gain that amount. So, coming from an actionscript background. I thought to simply add a function that absorbs the boost and thus adding the amount to the overal energy with a max limit. I might be thinking totally wrong here, hench the error, and my question here.
in the pickup collider script once the collider successfully found the player i toss my picked up energy towards the energyDrain script to add that amount.
With the current script i get the warning "An object reference is required to access non-static member" I am quite stuck here as why searches doesn't help me, only confuse me more :)
Here is the relevant code: pickupObjectsTrigger.cs
public class pickupObjectsTrigger : MonoBehaviour {
public GameObject pickupObject; //The object we are picking up
public string pickupObjectName;
public GameObject inventoryObject;
public float energyPower = 10;
void Start ()
{
if (pickupObject == null)
{
Debug.LogWarning("No object set for pickup!");
}
}
void OnTriggerStay(Collider other)
{
if(other.CompareTag("Player"))
{
if(pickupObject != null && other.CompareTag("Player") && Input.GetButtonDown("Use"))
{
pickupObject.transform.parent = inventoryObject.transform;
transform.collider.isTrigger = false;
if (pickupObjectName == "energy"){
EnergyController.ADD_ENERGY(energyAmount);
}
//other pickups
}
}
}
EnergyController.cs
public class EnergyController : MonoBehaviour {
public float energy = 100f;
public float maxEnergy = 100f;
public float drainspeed;
void Update () {
if(isOn == true){
if(energy > maxEnergy){
energy = maxEnergy;
}
if (energy <=0)
{
energy = 0;
} else {
energy -= drainspeed*Time.deltaTime;
}
}
}
public static void ADD_ENERGY(int amount){
energy = Mathf.Clamp(energy+amount, 0, 100);
}
}
Thank you for your insight.
There are two primary solutions. First you can make 'energy' static:
public static float energy = 100f;
The use of statics this way (i.e. to create what is essentially a global function) can lead to problems with maintainable code.
The second solution is to make 'ADD_ENERGEY()' not static. Then you could access it this way:
GameObject.Find("TheNameOfTheGameObjectThatHasTheEnergyControllerScript").GetComponent<EnergyController>().ADD_ENERGY(enertyAmount);
Other solutions include using SendMessage and Events and Delegates.
Thank you so much. The first method i tried and worked, but I wish to see the energy in the inspector as you mentioned and other reasons.
I am honestly a bit baffled. As I tried the second method. Too much whiskey and distraction would have caused my steps into the dark. After going back into my earlier testscript. I saw i left out the ( ) after the GetComponent Then i found some similar questions where people targeted the script directly, hence my approach stated above.
/no more whiskey for me tonight ;)
Once again. Thanks!
