private void DrawVertexPathSceneEditor()
{
var bezierColor = globalDisplaySettings.bezierPath;
bezierColor.a *= .5f;
if (Getdata.showBezierPathInVertexMode)
{
for (int i = 0; i < GetBezierPath.NumSegments; i++)
{
var points = GetBezierPath.GetPointsInSegment(i);
for (int j = 0; j < points.Length; j++)
{
points[j] = MathUtility.TransformPoint(points[j], creator.transform, GetBezierPath.Space);
}
Handles.DrawBezier(points[0], points[3], points[1], points[2], bezierColor, null, 2);
}
}
Handles.color = globalDisplaySettings.vertexPath;
for (int i = 0; i < creator.Path.NumPoints; i++)
{
var nextIndex = (i + 1) % creator.Path.NumPoints;
if (nextIndex != 0 || GetBezierPath.IsClosed)
{
Handles.DrawLine(creator.Path.GetPoint(i), creator.Path.GetPoint(nextIndex));
}
}
if (Getdata.showNormalsInVertexMode)
{
Handles.color = globalDisplaySettings.normals;
var normalLines = new Vector3[creator.Path.NumPoints * 2];
for (int i = 0; i < creator.Path.NumPoints; i++)
{
normalLines[i * 2] = creator.Path.GetPoint(i);
normalLines[i * 2 + 1] = creator.Path.GetPoint(i) + creator.Path.localNormals[i] * globalDisplaySettings.normalsLength;
}
Handles.DrawLines(normalLines);
}
}
private void DrawHandle(int index)
{
var handlePosition = MathUtility.TransformPoint(GetBezierPath[index], creator.transform, GetBezierPath.Space);
var anchorHandleSize = GetHandleDiameter(globalDisplaySettings.anchorSize * Getdata.bezierHandleScale, GetBezierPath[index]);
var controlHandleSize = GetHandleDiameter(globalDisplaySettings.controlSize * Getdata.bezierHandleScale, GetBezierPath[index]);
var isAnchorPoint = index % 3 == 0;
var isInteractive = isAnchorPoint || GetBezierPath.ControlPointMode != BezierPath.ControlMode.Automatic;
var handleSize = (isAnchorPoint) ? anchorHandleSize : controlHandleSize;
var doTransformHandle = index == handleIndexToDisplayAsTransform;
PathHandle.HandleColours handleColours = (isAnchorPoint) ? splineAnchorColours : splineControlColours;
if (index == handleIndexToDisplayAsTransform)
{
handleColours.DefaultColor = (isAnchorPoint) ? globalDisplaySettings.anchorSelected : globalDisplaySettings.controlSelected;
}
var cap = capFunctions[(isAnchorPoint) ? globalDisplaySettings.anchorShape : globalDisplaySettings.controlShape];
PathHandle.HandleInputType handleInputType;
handlePosition = PathHandle.DrawHandle(handlePosition, GetBezierPath.Space, isInteractive, handleSize, cap, handleColours, out handleInputType, index);
if (doTransformHandle)
{
// Show normals rotate tool
if (Getdata.showNormals && Tools.current == Tool.Rotate && isAnchorPoint && GetBezierPath.Space == PathSpace.xyz)
{
Handles.color = handlesStartColor;
var attachedControlIndex = (index == GetBezierPath.NumPoints - 1) ? index - 1 : index + 1;
var dir = (GetBezierPath[attachedControlIndex] - handlePosition).normalized;
var handleRotOffset = (360 + GetBezierPath.GlobalNormalsAngle) % 360;
anchorAngleHandle.radius = handleSize * 3;
anchorAngleHandle.angle = handleRotOffset + GetBezierPath.GetAnchorNormalAngle(index / 3);
var handleDirection = Vector3.Cross(dir, Vector3.up);
var handleMatrix = Matrix4x4.TRS(
handlePosition,
Quaternion.LookRotation(handleDirection, dir),
Vector3.one
);
using (new Handles.DrawingScope(handleMatrix))
{
// draw the handle
EditorGUI.BeginChangeCheck();
anchorAngleHandle.DrawHandle();
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(creator, "Set angle");
GetBezierPath.SetAnchorNormalAngle(index / 3, anchorAngleHandle.angle - handleRotOffset);
}
}
}
else
{
handlePosition = Handles.DoPositionHandle(handlePosition, Quaternion.identity);
}
}
switch (handleInputType)
{
case PathHandle.HandleInputType.LMBDrag:
draggingHandleIndex = index;
handleIndexToDisplayAsTransform = -1;
Repaint();
break;
case PathHandle.HandleInputType.LMBRelease:
draggingHandleIndex = -1;
handleIndexToDisplayAsTransform = -1;
Repaint();
break;
case PathHandle.HandleInputType.LMBClick:
draggingHandleIndex = -1;
if (Event.current.shift)
{
handleIndexToDisplayAsTransform = -1; // disable move tool if new point added
}
else
{
if (handleIndexToDisplayAsTransform == index)
{
handleIndexToDisplayAsTransform = -1; // disable move tool if clicking on point under move tool
}
else
{
handleIndexToDisplayAsTransform = index;
}
}
Repaint();
break;
case PathHandle.HandleInputType.LMBPress:
if (handleIndexToDisplayAsTransform != index)
{
handleIndexToDisplayAsTransform = -1;
Repaint();
}
break;
}
var localHandlePosition = MathUtility.InverseTransformPoint(handlePosition, creator.transform, GetBezierPath.Space);
if (GetBezierPath[index] != localHandlePosition)
{
Undo.RecordObject(creator, "Move point");
GetBezierPath.MovePoint(index, localHandlePosition);
}
}
private void DrawBezierPathSceneEditor()
{
var displayControlPoints = Getdata.displayControlPoints && (GetBezierPath.ControlPointMode != BezierPath.ControlMode.Automatic || !globalDisplaySettings.hideAutoControls);
var bounds = GetBezierPath.CalculateBoundsWithTransform(creator.transform);
if (Event.current.type == EventType.Repaint)
{
for (int i = 0; i < GetBezierPath.NumSegments; i++)
{
var points = GetBezierPath.GetPointsInSegment(i);
for (int j = 0; j < points.Length; j++)
{
points[j] = MathUtility.TransformPoint(points[j], creator.transform, GetBezierPath.Space);
}
if (Getdata.showPerSegmentBounds)
{
var segmentBounds = CubicBezierUtility.CalculateSegmentBounds(points[0], points[1], points[2], points[3]);
Handles.color = globalDisplaySettings.segmentBounds;
Handles.DrawWireCube(segmentBounds.center, segmentBounds.size);
}
// Draw lines between control points
if (displayControlPoints)
{
Handles.color = (GetBezierPath.ControlPointMode == BezierPath.ControlMode.Automatic) ? globalDisplaySettings.handleDisabled : globalDisplaySettings.controlLine;
Handles.DrawLine(points[1], points[0]);
Handles.DrawLine(points[2], points[3]);
}
// Draw path
var highlightSegment = (i == selectedSegmentIndex && Event.current.shift && draggingHandleIndex == -1 && mouseOverHandleIndex == -1);
var segmentColor = (highlightSegment) ? globalDisplaySettings.highlightedPath : globalDisplaySettings.bezierPath;
Handles.DrawBezier(points[0], points[3], points[1], points[2], segmentColor, null, 2);
}
if (Getdata.showPathBounds)
{
Handles.color = globalDisplaySettings.bounds;
Handles.DrawWireCube(bounds.center, bounds.size);
}
// Draw normals
if (Getdata.showNormals)
{
if (!hasUpdatedNormalsVertexPath)
{
normalsVertexPath = new VertexPath(GetBezierPath, creator.transform, normalsSpacing);
hasUpdatedNormalsVertexPath = true;
}
if (editingNormalsOld != Getdata.showNormals)
{
editingNormalsOld = Getdata.showNormals;
Repaint();
}
var normalLines = new Vector3[normalsVertexPath.NumPoints * 2];
Handles.color = globalDisplaySettings.normals;
for (int i = 0; i < normalsVertexPath.NumPoints; i++)
{
normalLines[i * 2] = normalsVertexPath.GetPoint(i);
normalLines[i * 2 + 1] = normalsVertexPath.GetPoint(i) + normalsVertexPath.GetNormal(i) * globalDisplaySettings.normalsLength;
}
Handles.DrawLines(normalLines);
}
}
if (Getdata.displayAnchorPoints)
{
for (int i = 0; i < GetBezierPath.NumPoints; i += 3)
{
DrawHandle(i);
}
}
if (displayControlPoints)
{
for (int i = 1; i < GetBezierPath.NumPoints - 1; i += 3)
{
DrawHandle(i);
DrawHandle(i + 1);
}
}
}
private void ProcessBezierPathInput(Event e)
{
// Find which handle mouse is over. Start by looking at previous handle index first, as most likely to still be closest to mouse
var previousMouseOverHandleIndex = (mouseOverHandleIndex == -1) ? 0 : mouseOverHandleIndex;
mouseOverHandleIndex = -1;
for (int i = 0; i < GetBezierPath.NumPoints; i += 3)
{
var handleIndex = (previousMouseOverHandleIndex + i) % GetBezierPath.NumPoints;
var handleRadius = GetHandleDiameter(globalDisplaySettings.anchorSize * Getdata.bezierHandleScale, GetBezierPath[handleIndex]) / 2f;
var pos = MathUtility.TransformPoint(GetBezierPath[handleIndex], creator.transform, GetBezierPath.Space);
var dst = HandleUtility.DistanceToCircle(pos, handleRadius);
if (dst == 0)
{
mouseOverHandleIndex = handleIndex;
break;
}
}
// Shift-left click (when mouse not over a handle) to split or add segment
if (mouseOverHandleIndex == -1)
{
if (e.type == EventType.MouseDown && e.button == 0 && e.shift)
{
UpdatePathMouseInfo();
// Insert point along selected segment
if (selectedSegmentIndex != -1 && selectedSegmentIndex < GetBezierPath.NumSegments)
{
var newPathPoint = pathMouseInfo.ClosestWorldPointToMouse;
newPathPoint = MathUtility.InverseTransformPoint(newPathPoint, creator.transform, GetBezierPath.Space);
Undo.RecordObject(creator, "Split segment");
GetBezierPath.SplitSegment(newPathPoint, selectedSegmentIndex, pathMouseInfo.TimeOnBezierSegment);
}
// If path is not a closed loop, add new point on to the end of the path
else if (!GetBezierPath.IsClosed)
{
// insert new point at same dst from scene camera as the point that comes before it (for a 3d path)
var dstCamToEndpoint = (Camera.current.transform.position - GetBezierPath[GetBezierPath.NumPoints - 1]).magnitude;
var newPathPoint = MouseUtility.GetMouseWorldPosition(GetBezierPath.Space, dstCamToEndpoint);
newPathPoint = MathUtility.InverseTransformPoint(newPathPoint, creator.transform, GetBezierPath.Space);
Undo.RecordObject(creator, "Add segment");
if (e.control || e.command)
{
GetBezierPath.AddSegmentToStart(newPathPoint);
}
else
{
GetBezierPath.AddSegmentToEnd(newPathPoint);
}
}
}
}
// Control click or backspace/delete to remove point
if (e.keyCode == KeyCode.Backspace || e.keyCode == KeyCode.Delete || ((e.control || e.command) && e.type == EventType.MouseDown && e.button == 0))
{
if (mouseOverHandleIndex != -1)
{
Undo.RecordObject(creator, "Delete segment");
GetBezierPath.DeleteSegment(mouseOverHandleIndex);
if (mouseOverHandleIndex == handleIndexToDisplayAsTransform)
{
handleIndexToDisplayAsTransform = -1;
}
mouseOverHandleIndex = -1;
Repaint();
}
}
// Holding shift and moving mouse (but mouse not over a handle/dragging a handle)
if (draggingHandleIndex == -1 && mouseOverHandleIndex == -1)
{
var shiftDown = e.shift && !shiftLastFrame;
if (shiftDown || ((e.type == EventType.MouseMove || e.type == EventType.MouseDrag) && e.shift))
{
UpdatePathMouseInfo();
if (pathMouseInfo.MouseDstToLine < segmentSelectDistanceThreshold)
{
if (pathMouseInfo.ClosestSegmentIndex != selectedSegmentIndex)
{
selectedSegmentIndex = pathMouseInfo.ClosestSegmentIndex;
HandleUtility.Repaint();
}
}
else
{
selectedSegmentIndex = -1;
HandleUtility.Repaint();
}
}
}
shiftLastFrame = e.shift;
}
private void DrawBezierPathInspector()
{
using (var check = new EditorGUI.ChangeCheckScope())
{
// Path options:
Getdata.showPathOptions = EditorGUILayout.Foldout(Getdata.showPathOptions, new GUIContent("Bézier Path Options"), true, boldFoldoutStyle);
if (Getdata.showPathOptions)
{
GetBezierPath.Space = (PathSpace)EditorGUILayout.Popup("Space", (int)GetBezierPath.Space, spaceNames);
GetBezierPath.ControlPointMode = (BezierPath.ControlMode)EditorGUILayout.EnumPopup(new GUIContent("Control Mode"), GetBezierPath.ControlPointMode);
if (GetBezierPath.ControlPointMode == BezierPath.ControlMode.Automatic)
{
GetBezierPath.AutoControlLength = EditorGUILayout.Slider(new GUIContent("Control Spacing"), GetBezierPath.AutoControlLength, 0, 1);
}
GetBezierPath.IsClosed = EditorGUILayout.Toggle("Closed Path", GetBezierPath.IsClosed);
Getdata.showTransformTool = EditorGUILayout.Toggle(new GUIContent("Enable Transforms"), Getdata.showTransformTool);
Tools.hidden = !Getdata.showTransformTool;
// Check if out of bounds (can occur after undo operations)
if (handleIndexToDisplayAsTransform >= GetBezierPath.NumPoints)
{
handleIndexToDisplayAsTransform = -1;
}
// If a point has been selected
if (handleIndexToDisplayAsTransform != -1)
{
EditorGUILayout.LabelField("Selected Point:");
using (new EditorGUI.IndentLevelScope())
{
var currentPosition = creator.BezierPath[handleIndexToDisplayAsTransform];
var newPosition = EditorGUILayout.Vector3Field("Position", currentPosition);
if (newPosition != currentPosition)
{
Undo.RecordObject(creator, "Move point");
creator.BezierPath.MovePoint(handleIndexToDisplayAsTransform, newPosition);
}
// Don't draw the angle field if we aren't selecting an anchor point/not in 3d space
if (handleIndexToDisplayAsTransform % 3 == 0 && creator.BezierPath.Space == PathSpace.xyz)
{
var anchorIndex = handleIndexToDisplayAsTransform / 3;
var currentAngle = creator.BezierPath.GetAnchorNormalAngle(anchorIndex);
var newAngle = EditorGUILayout.FloatField("Angle", currentAngle);
if (newAngle != currentAngle)
{
Undo.RecordObject(creator, "Set Angle");
creator.BezierPath.SetAnchorNormalAngle(anchorIndex, newAngle);
}
}
}
}
if (Getdata.showTransformTool & (handleIndexToDisplayAsTransform == -1))
{
if (GUILayout.Button("Centre Transform"))
{
var worldCentre = GetBezierPath.CalculateBoundsWithTransform(creator.transform).center;
var transformPos = creator.transform.position;
if (GetBezierPath.Space == PathSpace.xy)
{
transformPos = new Vector3(transformPos.x, transformPos.y, 0);
}
else if (GetBezierPath.Space == PathSpace.xz)
{
transformPos = new Vector3(transformPos.x, 0, transformPos.z);
}
var worldCentreToTransform = transformPos - worldCentre;
if (worldCentre != creator.transform.position)
{
if (worldCentreToTransform != Vector3.zero)
{
var localCentreToTransform = MathUtility.InverseTransformVector(worldCentreToTransform, creator.transform, GetBezierPath.Space);
for (int i = 0; i < GetBezierPath.NumPoints; i++)
{
GetBezierPath.SetPoint(i, GetBezierPath.GetPoint(i) + localCentreToTransform, true);
}
}
creator.transform.position = worldCentre;
GetBezierPath.NotifyPathModified();
}
}
}
if (GUILayout.Button("Reset Path"))
{
Undo.RecordObject(creator, "Reset Path");
var in2DEditorMode = EditorSettings.defaultBehaviorMode == EditorBehaviorMode.Mode2D;
Getdata.ResetBezierPath(creator.transform.position, in2DEditorMode);
EditorApplication.QueuePlayerLoopUpdate();
}
GUILayout.Space(inspectorSectionSpacing);
}
Getdata.showNormals = EditorGUILayout.Foldout(Getdata.showNormals, new GUIContent("Normals Options"), true, boldFoldoutStyle);
if (Getdata.showNormals)
{
GetBezierPath.FlipNormals = EditorGUILayout.Toggle(new GUIContent("Flip Normals"), GetBezierPath.FlipNormals);
if (GetBezierPath.Space == PathSpace.xyz)
{
GetBezierPath.GlobalNormalsAngle = EditorGUILayout.Slider(new GUIContent("Global Angle"), GetBezierPath.GlobalNormalsAngle, 0, 360);
if (GUILayout.Button("Reset Normals"))
{
Undo.RecordObject(creator, "Reset Normals");
GetBezierPath.FlipNormals = false;
GetBezierPath.ResetNormalAngles();
}
}
GUILayout.Space(inspectorSectionSpacing);
}
// Editor display options
Getdata.showDisplayOptions = EditorGUILayout.Foldout(Getdata.showDisplayOptions, new GUIContent("Display Options"), true, boldFoldoutStyle);
if (Getdata.showDisplayOptions)
{
Getdata.showPathBounds = GUILayout.Toggle(Getdata.showPathBounds, new GUIContent("Show Path Bounds"));
Getdata.showPerSegmentBounds = GUILayout.Toggle(Getdata.showPerSegmentBounds, new GUIContent("Show Segment Bounds"));
Getdata.displayAnchorPoints = GUILayout.Toggle(Getdata.displayAnchorPoints, new GUIContent("Show Anchor Points"));
if (!(GetBezierPath.ControlPointMode == BezierPath.ControlMode.Automatic && globalDisplaySettings.hideAutoControls))
{
Getdata.displayControlPoints = GUILayout.Toggle(Getdata.displayControlPoints, new GUIContent("Show Control Points"));
}
Getdata.keepConstantHandleSize = GUILayout.Toggle(Getdata.keepConstantHandleSize, new GUIContent("Constant Point Size", constantSizeTooltip));
Getdata.bezierHandleScale = Mathf.Max(0, EditorGUILayout.FloatField(new GUIContent("Handle Scale"), Getdata.bezierHandleScale));
DrawGlobalDisplaySettingsInspector();
}
if (check.changed)
{
SceneView.RepaintAll();
EditorApplication.QueuePlayerLoopUpdate();
}
}
}
