Created
July 20, 2013 15:21
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GameObject Drag and Drop action for Unity3D
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| using UnityEngine; | |
| using System.Collections; | |
| public class DragAndDrop : MonoBehaviour | |
| { | |
| private bool _mouseState; | |
| public GameObject Target; | |
| public Vector3 screenSpace; | |
| public Vector3 offset; | |
| // Use this for initialization | |
| void Start () | |
| { | |
| } | |
| // Update is called once per frame | |
| void Update () | |
| { | |
| // Debug.Log(_mouseState); | |
| if (Input.GetMouseButtonDown (0)) { | |
| RaycastHit hitInfo; | |
| if (Target == GetClickedObject (out hitInfo)) { | |
| _mouseState = true; | |
| screenSpace = Camera.main.WorldToScreenPoint (Target.transform.position); | |
| offset = Target.transform.position - Camera.main.ScreenToWorldPoint (new Vector3 (Input.mousePosition.x, Input.mousePosition.y, screenSpace.z)); | |
| } | |
| } | |
| if (Input.GetMouseButtonUp (0)) { | |
| _mouseState = false; | |
| } | |
| if (_mouseState) { | |
| //keep track of the mouse position | |
| var curScreenSpace = new Vector3 (Input.mousePosition.x, Input.mousePosition.y, screenSpace.z); | |
| //convert the screen mouse position to world point and adjust with offset | |
| var curPosition = Camera.main.ScreenToWorldPoint (curScreenSpace) + offset; | |
| //update the position of the object in the world | |
| Target.transform.position = curPosition; | |
| } | |
| } | |
| GameObject GetClickedObject (out RaycastHit hit) | |
| { | |
| GameObject target = null; | |
| Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition); | |
| if (Physics.Raycast (ray.origin, ray.direction * 10, out hit)) { | |
| target = hit.collider.gameObject; | |
| } | |
| return target; | |
| } | |
| } |
Something which worked. Thank you.
I didn't know where to add this script so I added it to my floor plane of the scene.
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hey ! your script helped me a lot. I have one problem regarding drag and drop only can you help me?