Handles.DrawLine

Description

Draw a line from p1 to p2.

Draw Line in the Scene View.

#pragma strict
// Draw lines to the connected game objects that a script has.
// If the target object doesnt have any game objects attached
// then it draws a line from the object to (0, 0, 0).
@CustomEditor(ConnectedObjectsExampleScript)
class ConnectLineHandleExampleScript extends Editor {
	function OnSceneGUI() {
		var connectedObjects: ConnectedObjectsExampleScript = target as ConnectedObjectsExampleScript;
		if (connectedObjects.objs == null)return ;
		var center: Vector3 = connectedObjects.transform.position;
		for (var i: int = 0; i < connectedObjects.objs.Length; i++) {
			var connectedObject: GameObject = connectedObjects.objs[i];
			if (connectedObject) {
				Handles.DrawLine(center, connectedObject.transform.position);
			}
			else {
				Handles.DrawLine(center, Vector3.zero);
			}
		}
	}
}

// Draw lines to the connected game objects that a script has.
// If the target object doesnt have any game objects attached
// then it draws a line from the object to (0, 0, 0).

using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(ConnectedObjectsExampleScript))]
class ConnectLineHandleExampleScript : Editor
{
    void OnSceneGUI()
    {
        ConnectedObjectsExampleScript connectedObjects = target as ConnectedObjectsExampleScript;
        if (connectedObjects.objs == null)
            return;

        Vector3 center = connectedObjects.transform.position;
        for (int i = 0; i < connectedObjects.objs.Length; i++)
        {
            GameObject connectedObject = connectedObjects.objs[i];
            if (connectedObject)
            {
                Handles.DrawLine(center, connectedObject.transform.position);
            }
            else
            {
                Handles.DrawLine(center, Vector3.zero);
            }
        }
    }
}

And the script attached to this Handle:

//ConnectedObjects.js

public var objs: GameObject[] = null;

using UnityEngine;

public class ConnectedObjectsExampleScript : MonoBehaviour
{
    public GameObject[] objs = null;
}