Why gameObject get such positions in Unity?

Question

I want to create 2d game. Structure of objects

[]

"View" present a square where everything happens.

"Initial" This is the same square with a mask

"SquareList" is empty panel.

Why am I doing this?

I created a script where when I click on the screen, a new square is added to the SquareList. SquareList is the parent. I created a script to determine the position of the cursor.

createPos = new Vector2 (Input.mousePosition.x, Input.mousePosition.y);

Next, I want to set for new object position = cursor position.

Cursor.position equivalent = (562,1134 / 242.6486) But the new object get position (94931.29 / 103365.6 / -17280)

But if I set position of new object to = new Vector(0,0); Then everything is fine

What is the problem?

Answer 1

Input.mousePosition returns position in pixel-coordinate. You have to use Camera.main.ScreenToWorldPoint to convert it to world position then assign that to the object. If 3D Object, add an offset to it before converting with ScreenToWorldPoint.

public GameObject prefab;
public float offset = 10f;

void Update()
{
    if (Input.GetMouseButtonDown(0))
    {
        Vector3 clickPos;

        clickPos = Input.mousePosition;
        clickPos.z = offset;

        clickPos = Camera.main.ScreenToWorldPoint(clickPos);
        GameObject obj = Instantiate(prefab, clickPos, Quaternion.identity);
    }
}