Editor stuff

Assets/Plugins/com.unity.uiextensions/Editor/BezierLineRendererEditor.cs

@@ -0,0 +1,77 @@
+///Credit Jason Horsburgh
+///Sourced from - https://bitbucket.org/UnityUIExtensions/unity-ui-extensions/issues/127/uilinerenderer-mesh-not-updating-in-editor
+
+using UnityEditor;
+
+namespace UnityEngine.UI.Extensions
+{
+    [CustomEditor(typeof(UILineRenderer))]
+    public class BezierLineRendererEditor : Editor
+    {
+        void OnSceneGUI()
+        {
+            UILineRenderer curveRenderer = target as UILineRenderer;
+
+            if (!curveRenderer || curveRenderer.drivenExternally || curveRenderer.Points == null || curveRenderer.Points.Length < 2)
+            {
+                return;
+            }
+
+            var oldMatrix = Handles.matrix;
+            var transform = curveRenderer.GetComponent<RectTransform>();
+            //Pivot must be 0,0 to edit
+            //transform.pivot = Vector2.zero;
+            Handles.matrix = transform.localToWorldMatrix;
+
+            var sizeX = curveRenderer.rectTransform.rect.width;
+            var sizeY = curveRenderer.rectTransform.rect.height;
+            var offsetX = -curveRenderer.rectTransform.pivot.x * sizeX;
+            var offsetY = -curveRenderer.rectTransform.pivot.y * sizeY;
+
+            Vector2[] points = new Vector2[curveRenderer.Points.Length];
+            for (int i = 0; i < curveRenderer.Points.Length; i++)
+            {
+                points[i] = curveRenderer.Points[i];
+            }
+
+            //Need to transform points to worldspace! when set to Relative
+            if (curveRenderer.RelativeSize)
+            {
+                for (int i = 0; i < points.Length; i++)
+                {
+                    points[i] = new Vector2(points[i].x * sizeX + offsetX, points[i].y * sizeY + offsetY);
+                }
+            }
+
+            for (int i = 0; i < points.Length - 1; i += 2)
+            {
+                Handles.DrawLine(points[i], points[i + 1]);
+            }
+
+            for (int i = 0; i < points.Length; ++i)
+            {
+                using (var check = new EditorGUI.ChangeCheckScope())
+                {
+                    var p = Handles.PositionHandle(points[i], Quaternion.identity);
+
+                    if (check.changed)
+                    {
+                        Undo.RecordObject(curveRenderer, "Changed Curve Position");
+                        if (curveRenderer.RelativeSize)
+                        {
+                            curveRenderer.Points[i] = new Vector2((p.x - offsetX) / sizeX, (p.y - offsetY) / sizeY);
+                        }
+                        else
+                        {
+                            curveRenderer.Points[i] = p;
+                        }
+                        curveRenderer.transform.gameObject.SetActive(false);
+                        curveRenderer.transform.gameObject.SetActive(true);
+                    }
+                }
+            }
+
+            Handles.matrix = oldMatrix;
+        }
+    }
+}