Change button color after click

Questions & Answers
1

Two buttons are sharing the same script. So, How do i find which button was click and change the button color?

How do i use “this” here to access the clicked button to change its color?

2

I use booleans to check if the button has been pressed, then textures in a custom style to switch the background color. Here’s some pseudo code.

bool buttonOn = false;
Texture2D ButtonOff; //one color texture
Texture2D ButtonOn; //another color texture

if (!buttonOn) {
    if (GUI.Button (RECT), "button 1", GUI.skin.GetStyle("ButtonOff")) {
        buttonOn = true;
        DoTheButtonThing();
    }
} else {
    if (GUI.Button (RECT), "button 1", GUI.skin.GetStyle("ButtonOn")) {
        buttonOn = false;    
    }

}

You could do the same thing by swapping the GUI content if you don’t want to mess with skins/styles.

I hope that helps.

3

You can do something like this. If I understand you correctly, you don’t need to worry about the same script being attached to multiple objects. When a button is clicked on, only it’s color will change, not all buttons with the script attached to it.

void Update () {
    if (Input.GetMouseButtonDown(0)) {
        RaycastHit hit;
        Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
        if (Physics.Raycast (ray, out hit)) {
            if (hit.transform.gameObject == this.gameObject) {
                GetComponent<Renderer>().material.color = Color.red;
                //Or whatever other color operation you want to do...
            }
        }
    }
}
4

You can have 2 bool var’s:

bool btn1;
bool btn2;

You can have 2 method’s:

public void onBtn1Click(){  btn1 = true;  }
public void onBtn2Click(){  btn2 = true;  }

And in

Update()
{
    //check for true's and modify color
}