LineRendererコンポーネントを使って空中で描けるペンを作成します。
Udonスクリプト作成
サンプルの PenLineとSimplePenをU#に書き直し
Udon Graph
デカすぎるので画像の添付は省略
U#
PenLineBySharpとSimplePenBySharp
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | public class SimplePenBySharp : UdonSharpBehaviour{ private PenLineBySharp line; private bool isDrawing; private Vector3 startPosition; public float minMoveDistance = 0.1f; private Vector3[] points; private LineRenderer lineRenderer; public Transform penTip; private int currentIndex = -1; public int pointsPerUpdate = 10; public Transform linesContainer; [UdonSynced] private int nextLineIndex = 0; private GameObject[] pool; private LineRenderer[] linePool; void Start() { linePool = linesContainer.GetComponentsInChildren< LineRenderer>(); } public override bool OnOwnershipRequest(VRCPlayerApi requestingPlayer, VRCPlayerApi requestedOwner) { return true; } public override void OnPickupUseDown() { // Get new Line from Pool lineRenderer = linePool[nextLineIndex]; line = (PenLineBySharp)lineRenderer.GetComponent(typeof(UdonBehaviour)); Networking.SetOwner(Networking.LocalPlayer, line.gameObject); line.gameObject.SetActive(true); // Increment next Line Index if (nextLineIndex++ >= linePool.Length) { nextLineIndex = 0; } // Reset Variables isDrawing = true; lineRenderer.positionCount = 2; startPosition = penTip.position; currentIndex = 0; // Initialize Line with 2 Points at Pen Tip for (int i = 0; i < 2; i++) { lineRenderer.SetPosition(i, penTip.position); } } private void Update() { //Debug.Log(items.Length); // Are we drawing? if (!isDrawing) return; // Has the pen moved enough? if (Vector3.Distance(penTip.position, startPosition) > minMoveDistance) { // Increase Points in Line lineRenderer.positionCount = currentIndex+1; // Add Point to Line lineRenderer.SetPosition(currentIndex, penTip.position); startPosition = penTip.position; // Increment currentIndex currentIndex++; // Group Point Updates to reduce Network Traffic if ((currentIndex % pointsPerUpdate) == 0) { line.OnUpdate(); } } } public override void OnPickupUseUp() { isDrawing = false; line.OnFinish(); }}public class PenLineBySharp : UdonSharpBehaviour{ private bool isDown; [UdonSynced] private Vector3[] points = new Vector3[10]; public LineRenderer lineRenderer; public void OnFinish() { lineRenderer.Simplify(0.005f); OnUpdate(); } public void OnUpdate() { points = new Vector3[lineRenderer.positionCount]; lineRenderer.GetPositions(points); RequestSerialization(); } public override void OnDeserialization() { // Set LinePositions from Synced Data lineRenderer.positionCount = points.Length; lineRenderer.SetPositions(points); } public override bool OnOwnershipRequest(VRCPlayerApi requestingPlayer, VRCPlayerApi requestedOwner) { return true; }} |
シーン作成
うーん。特に解説することがない・・・他の記事と解説が被るので省略します。
さいごに
サンプルコードをU#への書き直し作業は過去最大で大変でした。特にエラーが発生してもログに残らないのは辛すぎます。try-catch構文も使えないので、エラー発生時にログを残すことが出来なかったのでバグの特定に時間がかかりました。U#辛すぎますね・・
ペンを作成する