1

I want to code so that when I click on a GameObject, it changes colour with each click. For example, it starts off white: click to turn red, click again and it turns green, and so on and so forth until it get back to white.

I’ve got a single click working with Raycast. I’m guessing I’d need to do a string perhaps?

3

Hey there,
You don’t need a loop to loop through color’s. Use a variable to store current index of color and one to store the length of color array.

    Color[] colors = new Color[] {Color.white, Color.red, Color.green, Color.blue};
	private int currentColor,length;
	// Use this for initialization

	void Start () 
	{
		currentColor = 0; //White
		length = colors.Length;
		renderer.material.color = colors [currentColor];
	}

In update, when ray hit’s increment the currentColor by 1. To make sure, it does not get above the max length, use the remainder operator.

void Update () {
		
		if(Input.GetMouseButtonDown(0))
		{
			Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
			RaycastHit hit;
			if (Physics.Raycast(ray, out hit, 100))
			{
				currentColor = (currentColor+1)%length;
				renderer.material.color = colors[currentColor];
			}
		}
	}

Change the script as per your code.

2

You need to declare an array of colors to cycle through, first:

Color[] colors = new Color[] {Color.white, Color.red, Color.green, Color.blue};

Then, after the objects is hit by your RC, you call the following code:

Color goColor = yourObject.renderer.material.color;
for(int i = 0; i < colors.Length; i++) {
     
     if(goColor == colors *&& i == colors.Length - 1) {*

yourObject.renderer.material.color = colors[0];
Return;
}
else {
yourObject.renderer.material.color = colors[i + 1];
Return;
}
}
There are probably better ways to do it but that should get you started.