instantiating elements in UI/Canvas

Questions & Answers
1

Hey guys. Basically all i need to do is randomly spawn sprites that fall across the screen on the screen space overlay canvas. Instantiate needs a vector 3 as a position, but the canvas does not have a vector3 position just a rect transform. So either need to instantiate using rect transform (which doesnt seem like it woul dbe possible) or get the equivelent postion in the UI using a vector. Hope that makes sense.

Something like this

GameObject randomGerm = germs[Random.Range(0, germs.Length)];

Vector3 spawnPosition = new Vector3(Random.Range(-spawnValues.x, spawnValues.x) ,spawnValues.y,spawnValues.z);

				Quaternion spawnRotation = Quaternion.identity; //new Quaternion ();

				GameObject germSpawned = Instantiate (randomGerm, spawnPosition, spawnRotation) as GameObject;

But this will only spawn in world space not the UI/Canvas… hope you know what im aiming at

thanks guys

2

The important thing is to parent the newly instantiated object to the canvas.

You can also instantiate the object using the single parameter version of Object.Instantiate():

public static Object Instantiate(Object original);

and then modify the transform of the returned object:

GameObject germSpawned = Instantiate(randomGerm) as GameObject;
germSpawned.transform.SetParent(canvas.transform);
germSpawned.transform.localPosition = spawnPosition;
germSpawned.transform.localRotation = spawnRotation;