How to drag gameobject (only x y) snapped to a grid?

Question

Hi, i would like to know how to drag an object with the mouse only to the X and Y axis.

Most important i need this object snapped to a grid (of 2 unit for example), the pivot point of the game object is at left bottom.

During the drag when the object is close enought to the next grid point I needt that the object move to the next point. I fount this wiki but it works different:

http://wiki.unity3d.com/index.php?title=GridMove

Tnanks in advance

Answer 1

Best Answer

Answer by TonyLi · Aug 06, 2013 at 02:59 PM

At edit time or run time?

At edit time, set the Snap Settings as described in Positioning GameObjects.

At run time, keep track of the world position, but round it up or down to the nearest unit size. The example below rounds to one unit:

     Vector3 worldPos = <smooth position in world>
     transform.position = new Vector3(Mathf.Round(worldPos.x), Mathf.Round(worldPos.y), worldPos.z);

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xproject2013 · Aug 07, 2013 at 07:34 AM 0

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TonyLi · Aug 08, 2013 at 12:40 AM 0

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xproject2013 · Aug 08, 2013 at 03:17 PM 0

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TonyLi · Aug 08, 2013 at 03:42 PM 0

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xproject2013 · Aug 08, 2013 at 04:16 PM 0

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Answer 2

Answer by xproject2013 · Aug 10, 2013 at 02:07 PM

Exactly! if you try to replace the variables with the values you will see that the operation is correct

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How to drag gameobject (only x y) snapped to a grid?

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