koobas.hobune.stream
Different Position (Object position - Mouse Position)
Hello everyone.
I've created a script where the user clicks the screen and Logs where the user clicked.
void Start ()
{
theGameObject = GameObject.Find ("theGameObject").GetComponent<theGameObjectController> ();
}
// Update is called once per frame
void Update ()
{
if(Input.GetMouseButtonDown(1))
{
theGameObjectPosition = theGameObject.transform.position;
//Get users input position(where they shoot);
userInputPosition = Input.mousePosition;
Debug.Log (userInputPosition);
Debug.Log (playerPosition);
}
}
But the Logs are way different(clicking right in front of the object.) I get this:
(Game Object) (-0.6, 0.0, 0.0) UnityEngine.Debug:Log(Object) bulletAnimator:Update() (at Assets/FirstLevel/FirstLevelScripts/Weapon/bulletAnimator.cs:37)
(Mouse Input) (322.7, 135.5, 0.0) UnityEngine.Debug:Log(Object) bulletAnimator:Update() (at Assets/FirstLevel/FirstLevelScripts/Weapon/bulletAnimator.cs:36)
Im attaching the script to the GameObject. and My Hierarchy looks like this:
-Background
-GameObjectA
|--Main Camera-GameObjectB
Why are both positions way off? How do I fix, where do I attach the script?
The GameObject was instantiated on (0,0,0)....
Input.mousePosition returns screen coordinates, while transform.position returns world coordinates. You can transform between these coordinates by using Camera.WorldToScreenPoint and Camera.ScreenToWorldPoint
So the mousePosition would be like this?
userInputPosition = Camera.ScreenToWorldPoint(Input.mousePosition);
That will give you the world position but be aware that the z that's passed into that function will be 0. So it will be 0 units away from the camera and may give you undesirable results.
Exactly. If you want to get world position with a predefined z value, then you have to create new Vector3 variable and pass it to the method:
var v = new Vector3(Input.mousePosition.x, Input.mousePosition.y, z);
userInputPosition = Camera.main.ScreenToWorldPoint(v);
Please note that I used Camera.main, which uses first enabled camera, with tag $$anonymous$$ainCamera. You can't call these methods on Camera class itself, as they are not static. You have to use specific camera instance.
