center | The center of the dics. |
normal | The normal of the disc. |
radius | The radius of the disc. |
Draw the outline of a flat disc in 3D space.
Wire Disc in the Scene View.
Note: Use HandleUtility.GetHandleSize if you want the handle to always remain the same size on the screen.
To use this example, save this script in the Assets/Editor folder:
using UnityEngine; using UnityEditor;
[CustomEditor(typeof(DrawWireDisc))] public class DrawWireDiscEditor : Editor { void OnSceneGUI() { DrawWireDisc t = target as DrawWireDisc;
Handles.color = Color.blue; Handles.Label(t.transform.position + Vector3.up * 2, t.transform.position.ToString() + "\nShieldArea: " + t.shieldArea.ToString());
Handles.BeginGUI(); GUILayout.BeginArea(new Rect(Screen.width - 100, Screen.height - 80, 90, 50));
if (GUILayout.Button("Reset Area")) t.shieldArea = 5;
GUILayout.EndArea(); Handles.EndGUI();
Handles.color = new Color(1, 1, 1, 0.2f); Handles.DrawWireDisc(t.transform.position, t.transform.up, t.shieldArea);
Handles.color = Color.white; t.shieldArea = Handles.ScaleValueHandle(t.shieldArea, t.transform.position + t.transform.forward * t.shieldArea, t.transform.rotation, 1, Handles.ConeCap, 1); } }
...and place this script on the GameObject where you want the disc to appear:
using UnityEngine;
[ExecuteInEditMode] public class DrawWireDisc : MonoBehaviour { public float shieldArea = 5; }