koobas.hobune.stream
initiate Imagebuttons in loop
Hello, i have a prefab which is an image and creates a map in a loop and i want to attach a click receiver. Right now it looks like this (this is not the complete code just a part to give you an idea)
for (int y = 0; y < resolutiony; y = y + 1)
{
for (int x = 0; x < resolutionx; x = x + 1)
{
if (modus == 2) { displaymap(i, x, y); }
private void displaymap(int i, int x, int y) {
Sprite mysprite = UnityEngine.Resources.Load("Tiles/" + str(tiname));
GameObject o = Object.Instantiate(hexbasetile);
o.GetComponent().sprite = mysprite;
o.transform.localPosition = new Vector2(((x * xbase)+xdbase), (y * ybase));
Now i want to attach something like this: On Click call beenclicked(o);
private void beenclicked(GameObject o){
The tutorials on this are extremely thin. How can i do this from code side?
Please provide me some example code or a link! : with instructions only i will not be able to do much. The Essential question is how can i execute a function from a button
Well, the easiest way would be to have a UI Button attached to your prefab. Then you can retrieve it in your script with a simple GetComponent() call, and listen to its OnClick UnityEvent.
// Get your prefab's button
Button b = o.GetComponent<Button>();
// Assign your sprite to the button as its graphic component
b.image = mysprite;
// Add a listener to your button's OnClick UnityEvent
b.OnClick.AddListener(myCallback);
void myCallback()
{
//Called whenever b is clicked
}
Alternatively, you could also attach a script to your prefab that raises an event whenever it detects a click, with
UnityEvent onClick = new UnityEvent();
if ( Input.GetMouseButtonDown(0) )
{
onClick.Invoke();
}
And add a listener to yourscript.onClick in the same manner.
If you're not familiar with UnityEvents, check the manual.
Oh thankyou. However i think i missed one little detail. I would like to pass o to myCallback on click
You can call an UnityEvent with arguments, so one way to do it would be to invoke the script's GameObject.
class GameObjectEvent : UnityEvent<GameObject> { }
GameObjectEvent onClick = new GameObjectEvent();
onClick.Invoke(this.gameObject);
And modify your callback accordingly :
void myCallback(GameObject go)
{
// do stuff
}
