Handles.DrawLines

Parámetros

Descripción

Draw a list of line segments.

"Draw multiple lines in Scene view.".

The following example uses DrawLines to draw a line between GameObjects defined in a list.

To use this example, save the following script into the Assets/Editor folder:

using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(DrawLines))]
public class DrawLinesEditor : Editor
{
    void OnSceneGUI()
    {
        DrawLines   t = target as DrawLines;

        if (t == null || t.GameObjects == null)
            return;

        Vector3[]   lineSegments = new Vector3[t.GameObjects.Length * 2];
        int         pointIndex = 0;

        for (int i = 0; i < t.GameObjects.Length - 1; i++)
        {
            if (t.GameObjects[i] != null  &amp;&amp;  t.GameObjects[i + 1] != null)
            {
                lineSegments[pointIndex++] = t.GameObjects[i].transform.position;
                lineSegments[pointIndex++] = t.GameObjects[i + 1].transform.position;
            }
        }

        Handles.DrawLines(lineSegments);
    }
}

...then attach this script to the anchor GameObject which you would like to see lines come from. Drop GameObjects you would like the lines to go to into the array in the script's inspector, and adjust the gap between the dotted lines accordingly:

using UnityEngine;

[ExecuteInEditMode]
public class DrawLines : MonoBehaviour
{
    public GameObject[] GameObjects;
}

Parámetros

Descripción

Draw a list of indexed line segments.

The following example uses DrawDottedLines to draw a line between objects defined in a list. To use this example, save the following script into the Assets/Editor folder:

using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(DrawLinesUsingPoints))]
public class DrawLinesUsingPointsEditor : Editor
{
    void OnSceneGUI()
    {
        DrawLinesUsingPoints   t = target as DrawLinesUsingPoints;

        if (t == null || t.GameObjects == null)
            return;

        Vector3[]   points = new Vector3[t.GameObjects.Length];
        int[]       segmentIndices = new int[t.GameObjects.Length * 2];
        int         pointsIndex = 0;


        for (int i = 0; i < t.GameObjects.Length; i++)
        {
            if (t.GameObjects[i] != null)
                points[pointsIndex++] = t.GameObjects[i].transform.position;
        }

        for (int i = 0; i < pointsIndex - 1; i++)
        {
            int segmentIndex = i * 2;

            segmentIndices[segmentIndex] = i;
            segmentIndices[segmentIndex + 1] = i + 1;
        }

        Handles.DrawLines(points, segmentIndices);
    }
}

...then attach this script to the anchor object which you would like to see lines eminate from. Drop GameObjects you would like lines drawing to into the array in the script's inspector, and adjust the gap between the dotted lines accordingly:

using UnityEngine;

[ExecuteInEditMode]
public class DrawLinesUsingPoints : MonoBehaviour
{
    public GameObject[] GameObjects;
}