/// <summary>
/// 清空鼠标当前经过的目标
/// </summary>
private void ClearHoverTarget()
{
if (_currentHoverTriangle != null)
{
_currentHoverTriangle = null;
}
}
/// <summary>
/// 截获鼠标当前经过的目标
/// </summary>
private void CaptureHoverTarget()
{
if (Event.current.type == EventType.MouseMove)
{
RaycastHit hit;
if (Physics.Raycast(HandleUtility.GUIPointToWorldRay(Event.current.mousePosition), out hit))
{
if (hit.triangleIndex >= 0 && hit.triangleIndex < _meshMaker.Triangles.Count)
{
_currentHoverTriangle = _meshMaker.Triangles[hit.triangleIndex];
if (_currentEditMode == EditMode.Face && _currentHoverTriangle == _currentCheckedTriangle)
{
ClearHoverTarget();
}
}
else
{
ClearHoverTarget();
}
}
else
{
ClearHoverTarget();
}
}
else if (Event.current.type == EventType.MouseDown)
{
ClearHoverTarget();
}
ShowHoverTarget();
}
/// <summary>
/// 清空鼠标当前选中的目标
/// </summary>
private void ClearCheckedTarget()
{
if (_currentCheckedTriangle != null)
{
_currentCheckedTriangle = null;
}
if (_currentCheckedEdge != null)
{
_currentCheckedEdge = null;
}
if (_currentCheckedVertex != null)
{
_currentCheckedVertex = null;
}
}
/// <summary>
/// 截获鼠标当前选中的目标
/// </summary>
private void CaptureCheckedTarget()
{
if (!_secondaryHandle && Event.current.button == 1 && Event.current.isMouse && Event.current.type == EventType.MouseDown)
{
RaycastHit hit;
if (Physics.Raycast(HandleUtility.GUIPointToWorldRay(Event.current.mousePosition), out hit))
{
if (hit.triangleIndex >= 0 && hit.triangleIndex < _meshMaker.Triangles.Count)
{
_currentCheckedTriangle = _meshMaker.Triangles[hit.triangleIndex];
}
else
{
ClearCheckedTarget();
}
}
else
{
ClearCheckedTarget();
}
if (_currentCheckedTriangle != null)
{
switch (_currentEditMode)
{
case EditMode.Vertex:
_currentCheckedVertex = _currentCheckedTriangle.GetVertexByClick(hit.point);
break;
case EditMode.Edge:
_currentCheckedEdge = _currentCheckedTriangle.GetEdgeByClick(hit.point);
SetEditEdge();
break;
case EditMode.Face:
SetEditTriangle();
break;
}
}
}
Selection.activeObject = _meshMaker.gameObject;
ShowCheckedTarget();
}
/// <summary>
/// 鼠标点击，获取距离鼠标最近的边
/// </summary>
public static MeshMakerEdge GetEdgeByClick(this MeshMakerTriangle triangle, Vector3 clickPoint)
{
float distance1 = HandleUtility.DistancePointLine(clickPoint, triangle.Edge1.Vertex1.Vertex, triangle.Edge1.Vertex2.Vertex);
float distance2 = HandleUtility.DistancePointLine(clickPoint, triangle.Edge2.Vertex1.Vertex, triangle.Edge2.Vertex2.Vertex);
float distance3 = HandleUtility.DistancePointLine(clickPoint, triangle.Edge3.Vertex1.Vertex, triangle.Edge3.Vertex2.Vertex);
if (distance1 < distance2 && distance1 < distance3)
{
return(triangle.Edge1);
}
if (distance2 < distance1 && distance2 < distance3)
{
return(triangle.Edge2);
}
if (distance3 < distance1 && distance3 < distance2)
{
return(triangle.Edge3);
}
return(triangle.Edge1);
}
/// <summary>
/// 鼠标点击，获取距离鼠标最近的顶点
/// </summary>
public static MeshMakerVertex GetVertexByClick(this MeshMakerTriangle triangle, Vector3 clickPoint)
{
float distance1 = Vector3.Distance(triangle.Vertex1.Vertex, clickPoint);
float distance2 = Vector3.Distance(triangle.Vertex2.Vertex, clickPoint);
float distance3 = Vector3.Distance(triangle.Vertex3.Vertex, clickPoint);
if (distance1 < distance2 && distance1 < distance3)
{
return(triangle.Vertex1);
}
if (distance2 < distance1 && distance2 < distance3)
{
return(triangle.Vertex2);
}
if (distance3 < distance1 && distance3 < distance2)
{
return(triangle.Vertex3);
}
return(triangle.Vertex1);
}
/// <summary>
/// 为所有面执行分割操作，条件是该面包含顶点vertex1和vertex2，并以新的顶点newVertex作为分割之后的顶点
/// </summary>
public static void SegmentationTriangle(this List <MeshMakerTriangle> triangles, MeshMakerVertex vertex1, MeshMakerVertex vertex2, MeshMakerVertex newVertex)
{
List <MeshMakerTriangle> newTriangles = new List <MeshMakerTriangle>();
for (int i = 0; i < triangles.Count; i++)
{
if ((triangles[i].Vertex1 == vertex1 || triangles[i].Vertex1 == vertex2) && (triangles[i].Vertex2 == vertex1 || triangles[i].Vertex2 == vertex2))
{
MeshMakerTriangle mmt1 = new MeshMakerTriangle(0, ref triangles[i].Vertex1, ref newVertex, ref triangles[i].Vertex3);
MeshMakerTriangle mmt2 = new MeshMakerTriangle(0, ref newVertex, ref triangles[i].Vertex2, ref triangles[i].Vertex3);
triangles.RemoveAt(i);
newTriangles.Add(mmt1);
newTriangles.Add(mmt2);
i--;
}
else if ((triangles[i].Vertex2 == vertex1 || triangles[i].Vertex2 == vertex2) && (triangles[i].Vertex3 == vertex1 || triangles[i].Vertex3 == vertex2))
{
MeshMakerTriangle mmt1 = new MeshMakerTriangle(0, ref triangles[i].Vertex1, ref triangles[i].Vertex2, ref newVertex);
MeshMakerTriangle mmt2 = new MeshMakerTriangle(0, ref triangles[i].Vertex1, ref newVertex, ref triangles[i].Vertex3);
triangles.RemoveAt(i);
newTriangles.Add(mmt1);
newTriangles.Add(mmt2);
i--;
}
else if ((triangles[i].Vertex1 == vertex1 || triangles[i].Vertex1 == vertex2) && (triangles[i].Vertex3 == vertex1 || triangles[i].Vertex3 == vertex2))
{
MeshMakerTriangle mmt1 = new MeshMakerTriangle(0, ref triangles[i].Vertex1, ref triangles[i].Vertex2, ref newVertex);
MeshMakerTriangle mmt2 = new MeshMakerTriangle(0, ref newVertex, ref triangles[i].Vertex2, ref triangles[i].Vertex3);
triangles.RemoveAt(i);
newTriangles.Add(mmt1);
newTriangles.Add(mmt2);
i--;
}
}
triangles.AddRange(newTriangles);
}
private void Init()
{
_meshMaker = target as MeshMaker;
if (_meshMaker == null || EditorApplication.isPlaying)
{
return;
}
TransformChange(_meshMaker);
_currentHoverTriangle = null;
_currentCheckedTriangle = null;
_currentCheckedVertex = null;
_currentCheckedEdge = null;
_currentHandleTool = HandleTool.None;
_currentEditMode = EditMode.Vertex;
_currentEditTriangle = new GameObject("Triangle");
_currentEditTriangle.transform.SetParent(_meshMaker.Target.transform);
_currentEditTriangle.hideFlags = HideFlags.HideInHierarchy;
_currentEditTriangleVertex1 = new GameObject("Vertex1");
_currentEditTriangleVertex1.transform.SetParent(_currentEditTriangle.transform);
_currentEditTriangleVertex1.hideFlags = HideFlags.HideInHierarchy;
_currentEditTriangleVertex2 = new GameObject("Vertex2");
_currentEditTriangleVertex2.transform.SetParent(_currentEditTriangle.transform);
_currentEditTriangleVertex2.hideFlags = HideFlags.HideInHierarchy;
_currentEditTriangleVertex3 = new GameObject("Vertex3");
_currentEditTriangleVertex3.transform.SetParent(_currentEditTriangle.transform);
_currentEditTriangleVertex3.hideFlags = HideFlags.HideInHierarchy;
_currentEditEdge = new GameObject("Edge");
_currentEditEdge.transform.SetParent(_meshMaker.Target.transform);
_currentEditEdge.hideFlags = HideFlags.HideInHierarchy;
_currentEditEdgeVertex1 = new GameObject("Vertex1");
_currentEditEdgeVertex1.transform.SetParent(_currentEditEdge.transform);
_currentEditEdgeVertex1.hideFlags = HideFlags.HideInHierarchy;
_currentEditEdgeVertex2 = new GameObject("Vertex2");
_currentEditEdgeVertex2.transform.SetParent(_currentEditEdge.transform);
_currentEditEdgeVertex2.hideFlags = HideFlags.HideInHierarchy;
if (_vertexButtonContent == null)
{
Texture2D t2d = AssetDatabase.LoadAssetAtPath("Assets/ComDevelop/MeshEditor/MeshMaker/Editor/Texture/Vertex.png", typeof(Texture2D)) as Texture2D;
_vertexButtonContent = new GUIContent("", t2d, "Vertex Edit Mode");
}
if (_edgeButtonContent == null)
{
Texture2D t2d = AssetDatabase.LoadAssetAtPath("Assets/ComDevelop/MeshEditor/MeshMaker/Editor/Texture/Edge.png", typeof(Texture2D)) as Texture2D;
_edgeButtonContent = new GUIContent("", t2d, "Edge Edit Mode");
}
if (_faceButtonContent == null)
{
Texture2D t2d = AssetDatabase.LoadAssetAtPath("Assets/ComDevelop/MeshEditor/MeshMaker/Editor/Texture/Face.png", typeof(Texture2D)) as Texture2D;
_faceButtonContent = new GUIContent("", t2d, "Face Edit Mode");
}
if (_noneButtonContent == null)
{
Texture2D t2d = AssetDatabase.LoadAssetAtPath("Assets/ComDevelop/MeshEditor/MeshMaker/Editor/Texture/None.png", typeof(Texture2D)) as Texture2D;
_noneButtonContent = new GUIContent("", t2d, "None Edit Mode");
}
_secondaryHandle = false;
_secondaryHandleMode = SecondaryHandleMode.None;
_sceneCamera = SceneView.lastActiveSceneView.camera;
Undo.undoRedoPerformed += OnRecord;
}