Wes xx mediapipe integration

Packages/com.github.homuler.mediapipe/Runtime/Scripts/Unity/Annotation/LineAnnotation.cs

@@ -0,0 +1,83 @@
+// Copyright (c) 2021 homuler
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+using UnityEngine;
+
+namespace Mediapipe.Unity
+{
+#pragma warning disable IDE0065
+  using Color = UnityEngine.Color;
+#pragma warning restore IDE0065
+
+  public class LineAnnotation : HierarchicalAnnotation
+  {
+    [SerializeField] private LineRenderer _lineRenderer;
+    [SerializeField] private Color _color = Color.green;
+    [SerializeField, Range(0, 1)] private float _lineWidth = 1.0f;
+
+    private void OnEnable()
+    {
+      ApplyColor(_color);
+      ApplyLineWidth(_lineWidth);
+    }
+
+    private void OnDisable()
+    {
+      ApplyLineWidth(0.0f);
+    }
+
+#if UNITY_EDITOR
+    private void OnValidate()
+    {
+      if (!UnityEditor.PrefabUtility.IsPartOfAnyPrefab(this))
+      {
+        ApplyColor(_color);
+        ApplyLineWidth(_lineWidth);
+      }
+    }
+#endif
+
+    public void SetColor(Color color)
+    {
+      _color = color;
+      ApplyColor(_color);
+    }
+
+    public void SetLineWidth(float lineWidth)
+    {
+      _lineWidth = lineWidth;
+      ApplyLineWidth(_lineWidth);
+    }
+
+    public void Draw(Vector3 a, Vector3 b)
+    {
+      _lineRenderer.SetPositions(new Vector3[] { a, b });
+    }
+
+    public void Draw(GameObject a, GameObject b)
+    {
+      _lineRenderer.SetPositions(new Vector3[] { a.transform.localPosition, b.transform.localPosition });
+    }
+
+    public void ApplyColor(Color color)
+    {
+      if (_lineRenderer != null)
+      {
+        _lineRenderer.startColor = color;
+        _lineRenderer.endColor = color;
+      }
+    }
+
+    private void ApplyLineWidth(float lineWidth)
+    {
+      if (_lineRenderer != null)
+      {
+        _lineRenderer.startWidth = lineWidth;
+        _lineRenderer.endWidth = lineWidth;
+      }
+    }
+  }
+}