Interacting with a button by colliding with it

Questions & Answers
1

Hello I’m having a floating button and i want it to be klicked when a specific game object hits it, when it drops on the button for example. How do I do this?

2

Does it HAVE to be a UI button? Just make a sprite gameobject and add script that make it behave like a button. Then make use of the same old collisions techniques you would with any other gameobjects.

This will mimic most of the behaviors of a button:

void OnMouseEnter()	{
		if(enabled)
			gameObject.GetComponent<SpriteRenderer>().sprite = hoverSprite; 
	}

	void OnMouseExit()	{
		if(enabled)
			gameObject.GetComponent<SpriteRenderer>().sprite = defaultSprite; 
	}

	void OnDisable()	{
		gameObject.GetComponent<SpriteRenderer>().sprite = disabledSprite; 
	}

	void OnEnable()	{
		gameObject.GetComponent<SpriteRenderer>().sprite = defaultSprite; 
	}

	void OnClick() 	{
		OnClick2();
	}

    void OnMouseDown() 	{
		OnClick2();
    }