// 绘制 Spline 控件
void DrawSplineControls()
{
_location.time = 0.5f;
_count = segmentCount;
for (_location.index = 0; _location.index < _count; _location.index++)
{
EditorKit.BeginHotControlChangeCheck();
if (_selectedItem == _location.index)
{
Handles.color = _capSelectedColor;
}
else
{
Handles.color = _capNormalColor;
}
_handleSize = HandleUtility.GetHandleSize(_middle = GetPoint(_location)) * _splineCapSize;
Handles.FreeMoveHandle(_middle, _identityQuaternion, _handleSize, _zeroVector3, Handles.CircleCap);
if (EditorKit.EndHotControlChangeCheck() == HotControlEvent.MouseDown)
{
_selectionType = SelectionType.Spline;
_selectedItem = _location.index;
}
}
}
// 绘制 Node 控件
void DrawNodeControls(bool edit)
{
_count = nodeCount;
for (int i = 0; i < _count; i++)
{
// 获取 Node 位置
_node = GetNodePosition(i);
// 绘制 Node
EditorGUI.BeginChangeCheck();
EditorKit.BeginHotControlChangeCheck();
if (_selectionType == SelectionType.Node && _selectedItem == i)
{
Handles.color = _capSelectedColor;
}
else
{
Handles.color = _capNormalColor;
}
_handleSize = HandleUtility.GetHandleSize(_node) * _controlPointCapSize;
_node = Handles.FreeMoveHandle(_node, _identityQuaternion, _handleSize, _zeroVector3, Handles.DotCap);
// 更新选择
if (EditorKit.EndHotControlChangeCheck() == HotControlEvent.MouseDown)
{
_selectionType = SelectionType.Node;
_selectedItem = i;
}
// 修改 Node
if (EditorGUI.EndChangeCheck() && edit)
{
Undo.RecordObject(this, undoNode);
SetNodePosition(i, _node);
EditorUtility.SetDirty(this);
}
}
}
// 绘制 Node 控件
void DrawNodeControls(bool edit)
{
_count = nodeCount;
for (int i = 0; i < _count; i++)
{
// 获取控制点位置
_back = GetBackControlPoint(i);
_forward = GetForwardControlPoint(i);
_middle = GetMiddleControlPoint(i);
// 绘制切线
Handles.color = _controlLineColor;
EditorKit.HandlesDrawAALine(_back, _middle);
EditorKit.HandlesDrawAALine(_forward, _middle);
// 绘制后控制点
EditorGUI.BeginChangeCheck();
EditorKit.BeginHotControlChangeCheck();
if (_selectionType == SelectionType.BackControlPoint && _selectedItem == i)
{
Handles.color = _capSelectedColor;
}
else
{
Handles.color = _capNormalColor;
}
_handleSize = HandleUtility.GetHandleSize(_back) * _controlPointCapSize;
_back = Handles.FreeMoveHandle(_back, _identityQuaternion, _handleSize, _zeroVector3, Handles.DotCap);
// 更新选择
if (EditorKit.EndHotControlChangeCheck() == HotControlEvent.MouseDown)
{
_selectionType = SelectionType.BackControlPoint;
_selectedItem = i;
}
// 修改后控制点
if (EditorGUI.EndChangeCheck() && edit)
{
Undo.RecordObject(this, undoBackControlPoint);
SetBackControlPoint(i, _back);
EditorUtility.SetDirty(this);
}
// 绘制中控制点
EditorGUI.BeginChangeCheck();
EditorKit.BeginHotControlChangeCheck();
if (_selectionType == SelectionType.MiddleControlPoint && _selectedItem == i)
{
Handles.color = _capSelectedColor;
}
else
{
Handles.color = _capNormalColor;
}
_handleSize = HandleUtility.GetHandleSize(_middle) * _controlPointCapSize;
_middle = Handles.FreeMoveHandle(_middle, _identityQuaternion, _handleSize, _zeroVector3, Handles.DotCap);
// 更新选择
if (EditorKit.EndHotControlChangeCheck() == HotControlEvent.MouseDown)
{
_selectionType = SelectionType.MiddleControlPoint;
_selectedItem = i;
}
// 修改中控制点
if (EditorGUI.EndChangeCheck() && edit)
{
Undo.RecordObject(this, undoMiddleControlPoint);
SetMiddleControlPoint(i, _middle);
EditorUtility.SetDirty(this);
}
// 绘制前控制点
EditorGUI.BeginChangeCheck();
EditorKit.BeginHotControlChangeCheck();
if (_selectionType == SelectionType.ForwardControlPoint && _selectedItem == i)
{
Handles.color = _capSelectedColor;
}
else
{
Handles.color = _capNormalColor;
}
_handleSize = HandleUtility.GetHandleSize(_forward) * _controlPointCapSize;
_forward = Handles.FreeMoveHandle(_forward, _identityQuaternion, _handleSize, _zeroVector3, Handles.DotCap);
// 更新选择
if (EditorKit.EndHotControlChangeCheck() == HotControlEvent.MouseDown)
{
_selectionType = SelectionType.ForwardControlPoint;
_selectedItem = i;
}
// 修改前控制点
if (EditorGUI.EndChangeCheck() && edit)
{
Undo.RecordObject(this, undoForwardControlPoint);
SetForwardControlPoint(i, _forward);
EditorUtility.SetDirty(this);
}
}
}