CODEWITHSUNDEEP
c#2dunity-game-engine
user4331901
user4331901

Reputation:

Drag object with mouse and snap it to value

I'm trying to make draggable gameobjects in Unity and right now I've got it so it follows the mouse.

It's not exactly what I need, I want it to move by 0.375f in the mouse direction instead of going exactly where the mouse is.

I can't really imagine how would it work - any help would be appreciated! This is what I've got so far:

    void OnMouseDown()
    {
        screenPoint = Camera.main.WorldToScreenPoint(transform.parent.position);
        offset = transform.parent.position - Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z));
    }

    void OnMouseDrag()
    {
        Vector3 curScreenPt = new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z);
        Vector3 curPos = Camera.main.ScreenToWorldPoint(curScreenPt) + offset;
        transform.parent.position = new Vector3(curPos.x, curPos.y);
    }

Upvotes: 4

Views: 1504

Answers (1)

user4331901
user4331901

Reputation:

Nevermind, I'm dumb.

void OnMouseDown()
{
    screenPoint = Camera.main.WorldToScreenPoint(transform.parent.position);
    offset = transform.parent.position - Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z));
}

void OnMouseDrag()
{
    Vector3 curScreenPt = new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z);
    Vector3 curPos = Camera.main.ScreenToWorldPoint(curScreenPt) + offset;
    transform.parent.position = new Vector3(Mathf.Round(curPos.x/0.3175f) * 0.3175f, Mathf.Round(curPos.y / 0.3175f) * 0.3175f);
}

Upvotes: 2

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