rubbers: Add scale support.

Author: freezy

VisualPinball.Unity/VisualPinball.Unity.Editor/VPT/TransformInspector.cs

@@ -277,7 +277,9 @@ private void HandleMoveTool()
 		private void HandleScaleTool()
 		{
 			var e = Event.current;
-			if (e.type == EventType.MouseDown || e.type == EventType.MouseUp) {
+			var startScaling = e.type == EventType.MouseDown;
+			var endScaling = e.type == EventType.MouseUp;
+			if (startScaling || endScaling) {
 				_scaleFactor = _primaryItem.GetEditorScale().x;
 			}
 
@@ -290,6 +292,14 @@ private void HandleScaleTool()
 			}
 			var handleRot = _transform.rotation;
 			var handleScale = HandleUtility.GetHandleSize(handlePos);
+
+			if (startScaling) {
+				_primaryItem.EditorStartScaling();
+			}
+			if (endScaling) {
+				_primaryItem.EditorEndScaling();
+			}
+
 			switch (_primaryItem.EditorScaleType) {
 
 				case ItemDataTransformType.OneD: {

VisualPinball.Unity/VisualPinball.Unity/VPT/IMainRenderableComponent.cs

@@ -58,6 +58,8 @@ public interface IMainRenderableComponent : IMainComponent
 		Entity Entity { get; set; }
 		Vector3 GetEditorScale();
 		void SetEditorScale(Vector3 pos);
+		void EditorStartScaling();
+		void EditorEndScaling();
 	}
 
 	public enum ItemDataTransformType

VisualPinball.Unity/VisualPinball.Unity/VPT/MainRenderableComponent.cs

@@ -164,6 +164,8 @@ public virtual void SetEditorRotation(Vector3 rot) { }
 		public virtual ItemDataTransformType EditorScaleType => ItemDataTransformType.None;
 		public virtual Vector3 GetEditorScale() => Vector3.zero;
 		public virtual void SetEditorScale(Vector3 rot) { }
+		public virtual void EditorStartScaling() {}
+		public virtual void EditorEndScaling() {}
 
 		#endregion
 	}

VisualPinball.Unity/VisualPinball.Unity/VPT/Rubber/RubberComponent.cs

@@ -23,6 +23,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using Unity.Entities;
 using UnityEngine;
 using VisualPinball.Engine.Math;
@@ -51,6 +52,12 @@ public class RubberComponent : MainRenderableComponent<RubberData>,
 		[SerializeField]
 		private DragPointData[] _dragPoints;
 
+		[NonSerialized]
+		private float _scale = 1f;
+
+		[NonSerialized]
+		private Vertex3D[] _scalingDragPoints;
+
 		#endregion
 
 		#region IRubberData
@@ -219,6 +226,31 @@ public override void SetEditorRotation(Vector3 rot) {
 			RebuildMeshes();
 		}
 
+		public override void EditorStartScaling()
+		{
+			_scalingDragPoints = _dragPoints.Select(dp => dp.Center).ToArray();
+			_scale = 1f;
+		}
+
+		public override void EditorEndScaling()
+		{
+			_scalingDragPoints = null;
+		}
+
+		public override ItemDataTransformType EditorScaleType => ItemDataTransformType.OneD;
+		public override Vector3 GetEditorScale() => new(_scale, 1f, 1f);
+		public override void SetEditorScale(Vector3 vScale)
+		{
+			var scale = 1 + (vScale.x - 1) / 5f;
+			_scale = scale;
+			var center = DragPointCenter.ToVertex3D();
+			for (var i = 0; i < _dragPoints.Length; i++) {
+				_dragPoints[i].Center = center + scale * (_scalingDragPoints[i] - center);
+			}
+
+			RebuildMeshes();
+		}
+
 		#endregion
 	}
 }

VisualPinball.Unity/VisualPinball.Unity/VPT/Surface/SlingshotComponent.cs

@@ -256,6 +256,8 @@ public void SetEditorRotation(Vector3 pos) { }
 		public ItemDataTransformType EditorScaleType => ItemDataTransformType.None;
 		public Vector3 GetEditorScale() => Vector3.one;
 		public void SetEditorScale(Vector3 pos) { }
+		public void EditorStartScaling() { }
+		public void EditorEndScaling() { }
 
 		#endregion