void OnSceneGUI()
{
Event e = Event.current;
bool eventHasBeenUsed = false;
if (m_IsMoving)
{
if (e.type == EventType.Ignore ||
e.type == EventType.MouseUp)
{
eventHasBeenUsed = true;
OnFinishVertexModification();
}
}
bool sceneViewInUse = EditorHandleUtility.SceneViewInUse(e);
if (e.type == EventType.KeyDown)
{
if (e.keyCode == KeyCode.Backspace && m_currentHandle > -1 && m_currentHandle < m_Points.Count)
{
UndoUtility.RecordObject(m_Target, "Delete Bezier Point");
m_Points.RemoveAt(m_currentHandle);
UpdateMesh(true);
}
else if (e.keyCode == KeyCode.Escape)
{
SetIsEditing(false);
}
}
int count = m_Points.Count;
Matrix4x4 handleMatrix = Handles.matrix;
Handles.matrix = m_Target.transform.localToWorldMatrix;
EditorGUI.BeginChangeCheck();
for (int index = 0; index < count; index++)
{
if (index < count - 1 || m_CloseLoop)
{
Handles.DrawBezier(m_Points[index].position,
m_Points[(index + 1) % count].position,
m_Points[index].tangentOut,
m_Points[(index + 1) % count].tangentIn,
Color.green,
EditorGUIUtility.whiteTexture,
1f);
}
if (!m_IsEditing)
{
continue;
}
// If the index is selected show the full transform gizmo, otherwise use free move handles
if (m_currentHandle == index)
{
BezierPoint point = m_Points[index];
if (!m_currentHandle.isTangent)
{
Vector3 prev = point.position;
prev = Handles.PositionHandle(prev, Quaternion.identity);
if (!Math.Approx3(prev, point.position))
{
if (!m_IsMoving)
{
OnBeginVertexModification();
}
prev = EditorSnapping.MoveSnap(prev);
Vector3 dir = prev - point.position;
point.position = prev;
point.tangentIn += dir;
point.tangentOut += dir;
}
// rotation
int prev_index = index > 0 ? index - 1 : (m_CloseLoop ? count - 1 : -1);
int next_index = index < count - 1 ? index + 1 : (m_CloseLoop ? 0 : -1);
Vector3 rd = BezierPoint.GetLookDirection(m_Points, index, prev_index, next_index);
Quaternion look = Quaternion.LookRotation(rd);
float size = HandleUtility.GetHandleSize(point.position);
Matrix4x4 pm = Handles.matrix;
Handles.matrix = pm * Matrix4x4.TRS(point.position, look, Vector3.one);
point.rotation = Handles.Disc(point.rotation, Vector3.zero, Vector3.forward, size, false, 0f);
Handles.matrix = pm;
}
else
{
Handles.color = bezierTangentHandleColor;
if (m_currentHandle.tangent == BezierTangentDirection.In && (m_CloseLoop || index > 0))
{
EditorGUI.BeginChangeCheck();
point.tangentIn = Handles.PositionHandle(point.tangentIn, Quaternion.identity);
if (EditorGUI.EndChangeCheck())
{
if (!m_IsMoving)
{
OnBeginVertexModification();
}
point.tangentIn = EditorSnapping.MoveSnap(point.tangentIn);
point.EnforceTangentMode(BezierTangentDirection.In, m_TangentMode);
}
Handles.color = Color.blue;
Handles.DrawLine(m_Points[index].position, m_Points[index].tangentIn);
}
if (m_currentHandle.tangent == BezierTangentDirection.Out && (m_CloseLoop || index < count - 1))
{
EditorGUI.BeginChangeCheck();
point.tangentOut = Handles.PositionHandle(point.tangentOut, Quaternion.identity);
if (EditorGUI.EndChangeCheck())
{
if (!m_IsMoving)
{
OnBeginVertexModification();
}
point.tangentOut = EditorSnapping.MoveSnap(point.tangentOut);
point.EnforceTangentMode(BezierTangentDirection.Out, m_TangentMode);
}
Handles.color = Color.red;
Handles.DrawLine(m_Points[index].position, m_Points[index].tangentOut);
}
}
m_Points[index] = point;
}
}
if (!m_IsEditing)
{
return;
}
EventType eventType = e.type;
if (!eventHasBeenUsed)
{
eventHasBeenUsed = eventType == EventType.Used;
}
for (int index = 0; index < count; index++)
{
Vector3 prev;
BezierPoint point = m_Points[index];
// Position Handle
float size = HandleUtility.GetHandleSize(point.position) * k_HandleSize;
Handles.color = bezierPositionHandleColor;
if (m_currentHandle == index && !m_currentHandle.isTangent)
{
Handles.DotHandleCap(0, point.position, Quaternion.identity, size, e.type);
}
else
{
prev = point.position;
prev = FreeMoveHandle(prev, size, Vector3.zero, Handles.DotHandleCap);
if (!eventHasBeenUsed && eventType == EventType.MouseUp && e.type == EventType.Used)
{
eventHasBeenUsed = true;
m_currentHandle = (BezierHandle)index;
Repaint();
SceneView.RepaintAll();
}
else if (!Math.Approx3(prev, point.position))
{
if (!m_IsMoving)
{
OnBeginVertexModification();
}
point.SetPosition(EditorSnapping.MoveSnap(prev));
}
}
// Tangent handles
Handles.color = bezierTangentHandleColor;
// Tangent In Handle
if (m_CloseLoop || index > 0)
{
size = HandleUtility.GetHandleSize(point.tangentIn) * k_HandleSize;
Handles.DrawLine(point.position, point.tangentIn);
if (index == m_currentHandle && m_currentHandle.isTangent && m_currentHandle.tangent == BezierTangentDirection.In)
{
Handles.DotHandleCap(0, point.tangentIn, Quaternion.identity, size, e.type);
}
else
{
prev = point.tangentIn;
prev = FreeMoveHandle(prev, size, Vector3.zero, Handles.DotHandleCap);
if (!eventHasBeenUsed && eventType == EventType.MouseUp && e.type == EventType.Used)
{
eventHasBeenUsed = true;
m_currentHandle.SetIndexAndTangent(index, BezierTangentDirection.In);
Repaint();
SceneView.RepaintAll();
}
else if (!Math.Approx3(prev, point.tangentIn))
{
if (!m_IsMoving)
{
OnBeginVertexModification();
}
point.tangentIn = EditorSnapping.MoveSnap(prev);
point.EnforceTangentMode(BezierTangentDirection.In, m_TangentMode);
}
}
}
// Tangent Out
if (m_CloseLoop || index < count - 1)
{
size = HandleUtility.GetHandleSize(point.tangentOut) * k_HandleSize;
Handles.DrawLine(point.position, point.tangentOut);
if (index == m_currentHandle && m_currentHandle.isTangent && m_currentHandle.tangent == BezierTangentDirection.Out)
{
Handles.DotHandleCap(0, point.tangentOut, Quaternion.identity, size, e.type);
}
else
{
prev = point.tangentOut;
prev = FreeMoveHandle(prev, size, Vector3.zero, Handles.DotHandleCap);
if (!eventHasBeenUsed && eventType == EventType.MouseUp && e.type == EventType.Used)
{
eventHasBeenUsed = true;
m_currentHandle.SetIndexAndTangent(index, BezierTangentDirection.Out);
Repaint();
SceneView.RepaintAll();
}
else if (!Math.Approx3(prev, point.tangentOut))
{
if (!m_IsMoving)
{
OnBeginVertexModification();
}
point.tangentOut = EditorSnapping.MoveSnap(prev);
point.EnforceTangentMode(BezierTangentDirection.Out, m_TangentMode);
}
}
}
m_Points[index] = point;
}
// Do control point insertion
if (!eventHasBeenUsed && m_ControlPoints != null && m_ControlPoints.Count > 1)
{
int index = -1;
float distanceToLine;
Vector3 p = EditorHandleUtility.ClosestPointToPolyLine(m_ControlPoints, out index, out distanceToLine, false, null);
if (!IsHoveringHandlePoint(e.mousePosition) && distanceToLine < PreferenceKeys.k_MaxPointDistanceFromControl)
{
Handles.color = Color.green;
Handles.DotHandleCap(-1, p, Quaternion.identity, HandleUtility.GetHandleSize(p) * .05f, e.type);
Handles.color = Color.white;
if (!eventHasBeenUsed && eventType == EventType.MouseDown && e.button == 0)
{
UndoUtility.RecordObject(m_Target, "Add Point");
Vector3 dir = m_ControlPoints[(index + 1) % m_ControlPoints.Count] - m_ControlPoints[index];
m_Points.Insert((index / m_Columns) + 1, new BezierPoint(p, p - dir, p + dir, Quaternion.identity));
UpdateMesh(true);
e.Use();
}
SceneView.RepaintAll();
}
}
if (e.type == EventType.MouseUp && !sceneViewInUse)
{
m_currentHandle.SetIndex(-1);
}
Handles.matrix = handleMatrix;
if (EditorGUI.EndChangeCheck())
{
UpdateMesh(false);
}
}
void DoExistingPointsGUI()
{
Transform trs = polygon.transform;
int len = polygon.m_Points.Count;
Vector3 up = trs.up;
Vector3 right = trs.right;
Vector3 forward = trs.forward;
Vector3 center = Vector3.zero;
Event evt = Event.current;
bool used = evt.type == EventType.Used;
if (!used &&
(evt.type == EventType.MouseDown &&
evt.button == 0 &&
!EditorHandleUtility.IsAppendModifier(evt.modifiers)))
{
m_SelectedIndex = -1;
}
if (evt.type == EventType.Repaint && polygon.polyEditMode == PolyShape.PolyEditMode.Path)
{
Vector3 currentPos = polygon.transform.TransformPoint(m_CurrentPosition);
Handles.color = k_HandleColor;
Handles.DotHandleCap(-1, currentPos, Quaternion.identity, HandleUtility.GetHandleSize(currentPos) * k_HandleSize, evt.type);
Handles.color = Color.white;
}
if (polygon.polyEditMode == PolyShape.PolyEditMode.Height)
{
if (!used && evt.type == EventType.MouseUp && evt.button == 0 && !EditorHandleUtility.IsAppendModifier(evt.modifiers))
{
evt.Use();
SetPolyEditMode(PolyShape.PolyEditMode.Edit);
}
bool sceneInUse = EditorHandleUtility.SceneViewInUse(evt);
Ray r = HandleUtility.GUIPointToWorldRay(evt.mousePosition);
Vector3 origin = polygon.transform.TransformPoint(Math.Average(polygon.m_Points));
float extrude = polygon.extrude;
if (evt.type == EventType.MouseMove && !sceneInUse)
{
Vector3 p = Math.GetNearestPointRayRay(origin, up, r.origin, r.direction);
extrude = EditorSnapping.MoveSnap(s_HeightMouseOffset + Vector3.Distance(origin, p) * Mathf.Sign(Vector3.Dot(p - origin, up)));
}
Vector3 extrudePoint = origin + (extrude * up);
if (m_DrawHeightHandles)
{
Handles.color = k_HandleColor;
Handles.DotHandleCap(-1, origin, Quaternion.identity, HandleUtility.GetHandleSize(origin) * k_HandleSize, evt.type);
Handles.color = k_HandleColorGreen;
Handles.DrawLine(origin, extrudePoint);
Handles.DotHandleCap(-1, extrudePoint, Quaternion.identity, HandleUtility.GetHandleSize(extrudePoint) * k_HandleSize, evt.type);
Handles.color = Color.white;
}
if (!sceneInUse && polygon.extrude != extrude)
{
OnBeginVertexMovement();
polygon.extrude = extrude;
RebuildPolyShapeMesh(false);
}
}
else
{
// vertex dots
for (int ii = 0; ii < len; ii++)
{
Vector3 point = trs.TransformPoint(polygon.m_Points[ii]);
center.x += point.x;
center.y += point.y;
center.z += point.z;
float size = HandleUtility.GetHandleSize(point) * k_HandleSize;
Handles.color = ii == m_SelectedIndex ? k_HandleSelectedColor : k_HandleColor;
EditorGUI.BeginChangeCheck();
point = Handles.Slider2D(point, up, right, forward, size, Handles.DotHandleCap, Vector2.zero, true);
if (EditorGUI.EndChangeCheck())
{
UndoUtility.RecordObject(polygon, "Move Polygon Shape Point");
polygon.m_Points[ii] = GetPointInLocalSpace(point);
OnBeginVertexMovement();
RebuildPolyShapeMesh(false);
}
// "clicked" a button
if (!used && evt.type == EventType.Used)
{
if (ii == 0 && polygon.m_Points.Count > 2 && polygon.polyEditMode == PolyShape.PolyEditMode.Path)
{
m_NextMouseUpAdvancesMode = true;
return;
}
else
{
used = true;
m_SelectedIndex = ii;
}
}
}
Handles.color = Color.white;
// height setting
if (polygon.polyEditMode != PolyShape.PolyEditMode.Path && polygon.m_Points.Count > 2)
{
center.x /= (float)len;
center.y /= (float)len;
center.z /= (float)len;
Vector3 extrude = center + (up * polygon.extrude);
m_DistanceFromHeightHandle = Vector2.Distance(HandleUtility.WorldToGUIPoint(extrude), evt.mousePosition);
EditorGUI.BeginChangeCheck();
if (m_DrawHeightHandles)
{
Handles.color = k_HandleColor;
Handles.DotHandleCap(-1, center, Quaternion.identity, HandleUtility.GetHandleSize(center) * k_HandleSize, evt.type);
Handles.DrawLine(center, extrude);
Handles.color = k_HandleColorGreen;
extrude = Handles.Slider(extrude, up, HandleUtility.GetHandleSize(extrude) * k_HandleSize, Handles.DotHandleCap, 0f);
Handles.color = Color.white;
}
if (EditorGUI.EndChangeCheck())
{
UndoUtility.RecordObject(polygon, "Set Polygon Shape Height");
polygon.extrude = EditorSnapping.MoveSnap(Vector3.Distance(extrude, center) * Mathf.Sign(Vector3.Dot(up, extrude - center)));
OnBeginVertexMovement();
RebuildPolyShapeMesh(false);
}
}
}
}
protected override void DoToolGUI()
{
if (!isEditing)
{
m_Position = Vector3.zero;
}
EditorHandleUtility.PushMatrix();
Handles.matrix = Matrix4x4.TRS(m_HandlePosition, m_HandleRotation, Vector3.one);
EditorGUI.BeginChangeCheck();
Handles.color = Color.blue;
m_Position = Handles.Slider2D(m_Position,
Vector3.forward,
Vector3.right,
Vector3.up,
HandleUtility.GetHandleSize(m_Position) * .2f,
Handles.RectangleHandleCap,
0f,
false);
Handles.color = Color.green;
m_Position = Handles.Slider(m_Position, Vector3.up);
Handles.color = Color.red;
m_Position = Handles.Slider(m_Position, Vector3.right);
Handles.color = Color.white;
if (EditorGUI.EndChangeCheck())
{
if (!isEditing)
{
BeginEdit("Translate Textures");
}
m_Position = EditorSnapping.MoveSnap(m_Position);
// invert `y` because to users it's confusing that "up" in UV space visually moves the texture down
var delta = new Vector4(m_Position.x, -m_Position.y, 0f, 0f);
foreach (var value in elementSelection)
{
var selection = value as TranslateTextureSelection;
if (selection == null)
{
continue;
}
// Account for object scale
delta *= k_Vector3Magnitude / selection.mesh.transform.lossyScale.magnitude;
var origins = selection.origins;
var positions = selection.textures;
// Translating faces is treated as a special case because we want the textures in scene to visually
// match the movement of the translation handle. When UVs are scaled, they have the appearance of
// moving faster or slower (even though they are translating the correct distances). To avoid this,
// we cache the UV scale of each face and modify the translation delta accordingly. This isn't perfect,
// as it will not be able to find the scale for sheared or otherwise distorted face UVs. However, for
// most cases it maps quite well.
if (ProBuilderEditor.selectMode == SelectMode.TextureFace)
{
foreach (var face in selection.faceAndScale)
{
var faceDelta = new Vector4(delta.x / face.item2.x, delta.y / face.item2.y, 0f, 0f);
foreach (var index in face.item1.distinctIndexes)
{
positions[index] = origins[index] + faceDelta;
}
}
}
else
{
foreach (var group in value.elementGroups)
{
foreach (var index in group.indices)
{
positions[index] = origins[index] + delta;
}
}
}
selection.mesh.mesh.SetUVs(k_TextureChannel, positions);
}
}
EditorHandleUtility.PopMatrix();
}
void DoPointPlacement()
{
Event evt = Event.current;
EventType eventType = evt.type;
if (m_PlacingPoint)
{
Ray ray = HandleUtility.GUIPointToWorldRay(evt.mousePosition);
if (eventType == EventType.MouseDrag)
{
float hitDistance = Mathf.Infinity;
if (plane.Raycast(ray, out hitDistance))
{
evt.Use();
polygon.m_Points[m_SelectedIndex] = GetPointInLocalSpace(ray.GetPoint(hitDistance));
RebuildPolyShapeMesh(false);
SceneView.RepaintAll();
}
}
if (eventType == EventType.MouseUp ||
eventType == EventType.Ignore ||
eventType == EventType.KeyDown ||
eventType == EventType.KeyUp)
{
evt.Use();
m_PlacingPoint = false;
m_SelectedIndex = -1;
SceneView.RepaintAll();
}
}
else if (polygon.polyEditMode == PolyShape.PolyEditMode.Path)
{
if (eventType == EventType.MouseDown && HandleUtility.nearestControl == m_ControlId)
{
if (polygon.m_Points.Count < 1)
{
SetupInputPlane(evt.mousePosition);
}
float hitDistance = Mathf.Infinity;
Ray ray = HandleUtility.GUIPointToWorldRay(evt.mousePosition);
if (plane.Raycast(ray, out hitDistance))
{
UndoUtility.RecordObject(polygon, "Add Polygon Shape Point");
Vector3 hit = ray.GetPoint(hitDistance);
if (polygon.m_Points.Count < 1)
{
// this monstrosity exists so that grid and incremental snap work when possible, and
// incremental is enabled when grid is not available.
polygon.transform.position = m_Polygon.isOnGrid
? EditorSnapping.MoveSnap(hit)
: EditorSnapping.snapMode == SnapMode.Relative
? ProBuilderSnapping.Snap(hit, EditorSnapping.incrementalSnapMoveValue)
: hit;
Vector3 cameraFacingPlaneNormal = plane.normal;
if (Vector3.Dot(cameraFacingPlaneNormal, SceneView.lastActiveSceneView.camera.transform.forward) > 0f)
{
cameraFacingPlaneNormal *= -1;
}
polygon.transform.rotation = Quaternion.LookRotation(cameraFacingPlaneNormal) * Quaternion.Euler(new Vector3(90f, 0f, 0f));
}
Vector3 point = GetPointInLocalSpace(hit);
if (polygon.m_Points.Count > 2 && Math.Approx3(polygon.m_Points[0], point))
{
m_NextMouseUpAdvancesMode = true;
return;
}
polygon.m_Points.Add(point);
m_PlacingPoint = true;
m_SelectedIndex = polygon.m_Points.Count - 1;
RebuildPolyShapeMesh(polygon);
evt.Use();
}
}
else
{
float hitDistance = Mathf.Infinity;
Ray ray = HandleUtility.GUIPointToWorldRay(evt.mousePosition);
if (plane.Raycast(ray, out hitDistance))
{
Vector3 hit = ray.GetPoint(hitDistance);
m_CurrentPosition = GetPointInLocalSpace(hit);
}
}
}
else if (polygon.polyEditMode == PolyShape.PolyEditMode.Edit)
{
if (polygon.m_Points.Count < 3)
{
SetPolyEditMode(PolyShape.PolyEditMode.Path);
return;
}
if (m_DistanceFromHeightHandle > PreferenceKeys.k_MaxPointDistanceFromControl)
{
// point insertion
Vector2 mouse = evt.mousePosition;
Ray ray = HandleUtility.GUIPointToWorldRay(mouse);
float hitDistance = Mathf.Infinity;
if (plane.Raycast(ray, out hitDistance))
{
Vector3 hit = ray.GetPoint(hitDistance);
Vector3 point = GetPointInLocalSpace(hit);
int polyCount = polygon.m_Points.Count;
float distToLineInGUI;
int index;
Vector3 pInGUI = EditorHandleUtility.ClosestPointToPolyLine(polygon.m_Points, out index, out distToLineInGUI, true, polygon.transform);
Vector3 aToPoint = point - polygon.m_Points[index - 1];
Vector3 aToB = polygon.m_Points[index % polyCount] - polygon.m_Points[index - 1];
float ratio = Vector3.Dot(aToPoint, aToB.normalized) / aToB.magnitude;
Vector3 wp = Vector3.Lerp(polygon.m_Points[index - 1], polygon.m_Points[index % polyCount], ratio);
wp = polygon.transform.TransformPoint(wp);
Vector2 aInGUI = HandleUtility.WorldToGUIPoint(polygon.transform.TransformPoint(polygon.m_Points[index - 1]));
Vector2 bInGUI = HandleUtility.WorldToGUIPoint(polygon.transform.TransformPoint(polygon.m_Points[index % polyCount]));
float distanceToVertex = Mathf.Min(Vector2.Distance(mouse, aInGUI), Vector2.Distance(mouse, bInGUI));
if (distanceToVertex > PreferenceKeys.k_MaxPointDistanceFromControl && distToLineInGUI < PreferenceKeys.k_MaxPointDistanceFromControl)
{
m_MouseCursor = MouseCursor.ArrowPlus;
if (evt.type == EventType.Repaint)
{
Handles.color = Color.green;
Handles.DotHandleCap(-1, wp, Quaternion.identity,
HandleUtility.GetHandleSize(wp) * k_HandleSize, evt.type);
}
if (evt.type == EventType.MouseDown && HandleUtility.nearestControl == m_ControlId)
{
evt.Use();
UndoUtility.RecordObject(polygon, "Insert Point");
polygon.m_Points.Insert(index, point);
m_SelectedIndex = index;
m_PlacingPoint = true;
RebuildPolyShapeMesh(true);
OnBeginVertexMovement();
}
Handles.color = Color.white;
}
if (evt.type != EventType.Repaint)
{
SceneView.RepaintAll();
}
}
}
}
}
protected override void DoToolGUI()
{
if (!isEditing)
{
m_Rotation = 0f;
}
EditorGUI.BeginChangeCheck();
var size = HandleUtility.GetHandleSize(m_HandlePosition);
EditorHandleUtility.PushMatrix();
Handles.matrix = Matrix4x4.TRS(m_HandlePosition, m_HandleRotation, Vector3.one);
Handles.color = Color.blue;
m_Euler.z = m_Rotation;
m_Quaternion = Quaternion.Euler(m_Euler);
m_Quaternion = Handles.Disc(m_Quaternion, Vector3.zero, Vector3.forward, size, false, EditorSnapping.snapMode == SnapMode.Relative ? EditorSnapping.incrementalSnapRotateValue : 0f);
m_Euler = m_Quaternion.eulerAngles;
m_Rotation = m_Euler.z;
EditorHandleUtility.PopMatrix();
if (EditorGUI.EndChangeCheck())
{
if (!isEditing)
{
BeginEdit("Rotate Textures");
}
if (EditorSnapping.snapMode == SnapMode.Relative)
{
m_Rotation = EditorSnapping.RotateSnap(m_Rotation);
}
foreach (var mesh in elementSelection)
{
if (!(mesh is MeshAndTextures))
{
continue;
}
var mat = (MeshAndTextures)mesh;
var origins = mat.origins;
var positions = mat.textures;
foreach (var group in mat.elementGroups)
{
foreach (var index in group.indices)
{
positions[index] = mat.postApplyMatrix.MultiplyPoint(
Math.RotateAroundPoint(
mat.preApplyMatrix.MultiplyPoint3x4(origins[index]), Vector2.zero, -m_Rotation));
}
}
mesh.mesh.mesh.SetUVs(k_TextureChannel, positions);
}
}
}
