Question by Digital-Phantom · Oct 01, 2017 at 10:49 AM · c#trigger snapping onmouseup

Make Object snap to position within Trigger area when mouse button released

Im using a simple script to pick up and move an object using the mouse/cursor.

 Vector3 dist;
     float posX;
     float posY;
 
     void OnMouseDown()
     {
         dist = Camera.main.WorldToScreenPoint(transform.position);
         posX = Input.mousePosition.x - dist.x;
         posY = Input.mousePosition.y - dist.y;
     }
 
     void OnMouseDrag()
     {
         Vector3 curPos = new Vector3(Input.mousePosition.x - posX, Input.mousePosition.y - posY, dist.z);
         Vector3 worldPos = Camera.main.ScreenToWorldPoint(curPos);
         transform.position = worldPos;
     }

Now I want to place the object in one of three places (A, B, C,)when the mouse is released. Each drop point is a transform(parent) with a box collider(child) as trigger that is larger than the carried objects. Height isn't an issue as all game objects are same height. I need the carried object to be placed at the transform as long as the mouse button was released while the object was within the Trigger. edit - (think CCG/TCG when a card is dropped and jumps to an empty slot)

This was my most recent attempt, no errors, but not working?

 public class putCardInPlay : MonoBehaviour
 {
 
     void OnTriggerEnter(Collider other)
     {
 
         if (other.gameObject.tag == "Card")
         {
             if (Input.GetButtonUp("Fire1"))
             {
                 Debug.Log("Item Dropped onto Position");
                 //Object no loger Controlled by Mouse
                 //Move Object onto Place Holder ?
             }
         }
     }
 }

Hopefully that explanation made sense? Any help greatly appreciated.

Add comment · Show 5

tmalhassan · Oct 01, 2017 at 05:20 PM 0

$$anonymous$$aybe lerp the object towards the place with trigger? Your code makes sense to me. Does the Debug.Log work?

Digital-Phantom · Oct 01, 2017 at 06:14 PM 0

nope, nothing shows for the log

tmalhassan Digital-Phantom · Oct 02, 2017 at 07:37 AM 0

Are you making a 2D or 3d game? and did you make sure that one of the objects has a RigidBody? Also did you make sure that the tag is on the child (the object with the collider)? because I see that you have a parenting situation, and it might get confusing sometimes.