/// <summary>
/// 重新将组设置到过去
/// </summary>
private void UndoGroup(SnapshotNode node)
{
CloverController.GetInstance().FaceGroupLookupTable = node.FaceGroupLookupTable;
}
SnapshotNode SnapshotNode()
{
SnapshotNode node = new SnapshotNode();
node.Type = (SnapshotNodeKind)reader.ReadInt32();
List<Face> leaves = new List<Face>();
int faceCount = reader.ReadInt32();
for (int i = 0; i < faceCount; i++)
{
int faceID = reader.ReadInt32();
leaves.Add(faceIDDict[faceID]);
}
node.FaceLeaves = leaves;
List<Edge> newEdgeList = new List<Edge>();
int newEdgeCount = reader.ReadInt32();
for (int i = 0; i < newEdgeCount; i++)
{
int edgeID = reader.ReadInt32();
newEdgeList.Add(edgeIDDict[edgeID]);
}
node.NewEdges = newEdgeList;
List<Vertex> vertexList = new List<Vertex>();
int vertexCount = reader.ReadInt32();
for (int i = 0; i < vertexCount; i++)
{
int vertexID = reader.ReadInt32();
vertexList.Add(vertexIDDict[vertexID]);
}
node.MovedVertexList = vertexList;
int originVertexListCount = reader.ReadInt32();
node.OriginVertexListCount = originVertexListCount;
int originEdgeListCount = reader.ReadInt32();
node.OriginEdgeListCount = originEdgeListCount;
return node;
}
public SnapshotNode SnapshotBeforeCut()
{
// 拍快照
shadowSystem.CheckUndoTree();
SnapshotNode node = new SnapshotNode(faceLayer.Leaves);
node.Type = SnapshotNodeKind.CutKind;
node.OriginVertexListCount = vertexLayer.VertexCellTable.Count;
node.OriginEdgeListCount = edgeLayer.Count;
node.FaceGroupLookupTable = CloverController.GetInstance().FaceGroupLookupTable.Clone() as FaceGroupLookupTable;
return node;
}
/// <summary>
/// 拍快照
/// </summary>
public void Snapshot(SnapshotNode node)
{
//CheckUndoTree();
snapshotList.Add(node);
operationLevel++;
}
public void SnapshotAfterCut(SnapshotNode node, List<Edge> newEdges)
{
node.NewEdges = newEdges;
shadowSystem.Snapshot(node);
}
public void RotateFaces(List<Face> beRotatedFaceList, Edge foldingLine, double angle)
{
SnapshotNode node = new SnapshotNode(CloverController.GetInstance().FaceLayer.Leaves);
List<Vertex> movedVertexList = foldingSystem.RotateFaces(beRotatedFaceList, foldingLine, angle);
// 记录本次移动了的顶点
node.MovedVertexList = movedVertexList;
node.OriginEdgeListCount = CloverController.GetInstance().EdgeLayer.Count;
node.OriginVertexListCount = CloverController.GetInstance().VertexLayer.VertexCellTable.Count;
node.Type = SnapshotNodeKind.RotateKind;
shadowSystem.Snapshot(node);
}
/// <summary>
/// 根据给定的长和宽初始化纸张
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
public void Initialize(float width, float height)
{
Vertex.Vertex_count = 0;
Face.Face_count = 0;
Edge.Edge_count = 0;
faceLayer = new FaceLayer();
edgeLayer = new EdgeLayer();
vertexLayer = new VertexLayer();
// Create 4 original vertices
Vertex[] vertices = new Vertex[4];
vertices[0] = new Vertex(-width / 2, height / 2, 0);
vertices[1] = new Vertex(-width / 2, -height / 2, 0);
vertices[2] = new Vertex(width / 2, -height / 2, 0);
vertices[3] = new Vertex(width / 2, height / 2, 0);
// 初始化纹理坐标
vertices[0].u = 0; vertices[0].v = 0;
vertices[1].u = 0; vertices[1].v = 1;
vertices[2].u = 1; vertices[2].v = 1;
vertices[3].u = 1; vertices[3].v = 0;
// add to vertex layer
foreach (Vertex v in vertices)
{
vertexLayer.InsertVertex(v);
renderController.AddVisualInfoToVertex(v);
}
// create a face
Face face = new Face(0);
// creates 4 edges
Edge[] edges = new Edge[4];
// create one face and four edges
for (int i = 0; i < 4; i++)
{
edges[i] = new Edge(vertices[i], vertices[i + 1 < 4 ? i + 1 : 0]);
EdgeTree tree = new EdgeTree(edges[i]);
edgeLayer.AddTree(tree);
face.AddEdge(edges[i]);
edges[i].Face1 = face;
}
// use root to initialize facecell tree and lookuptable
faceLayer.Initliaze(face);
face.UpdateVertices();
faceLayer.UpdateLeaves();
faceGroupLookupTable = new FaceGroupLookupTable(face);
// 此处也应该拍一张快照
SnapshotNode node = new SnapshotNode(faceLayer.Leaves);
// 为了方便revert设计，详情联系 ET
node.Type = SnapshotNodeKind.CutKind;
node.OriginVertexListCount = vertexLayer.VertexCellTable.Count;
node.OriginEdgeListCount = edgeLayer.Count;
shadowSystem.Snapshot(node);
// 调用渲染层，更新纸张
CreatePaper(face);
}
public void AnimatedRotateFaces(List<Face> beRotatedFaceList, Edge foldingLine, double angle)
{
try
{
List<Face> faceList = new List<Face>();
faceList.AddRange(beRotatedFaceList);
List<Vertex> movedVertexList = null;
AutoCamera(beRotatedFaceList[0]);
// 控制时间
animaWatch.Restart();
long lastTime = 0;
long thisTime = 0;
double interval = angle / animationDuration; //0.5秒
while (thisTime <= animationDuration)
{
thisTime = animaWatch.ElapsedMilliseconds;
double step;
if (thisTime <= animationDuration)
step = interval * (thisTime - lastTime);
else
step = interval * (animationDuration - lastTime);
List<Vertex> list = mainWindow.Dispatcher.Invoke(
new RotateFacesHandle(foldingSystem.RotateFaces),
faceList, foldingLine, step) as List<Vertex>;
// 取第一次的移动的顶点列表
if (movedVertexList == null)
{
movedVertexList = list;
}
lastTime = thisTime;
}
animaWatch.Stop();
// 快照
SnapshotNode node = new SnapshotNode(CloverController.GetInstance().FaceLayer.Leaves);
node.MovedVertexList = movedVertexList;
node.OriginEdgeListCount = CloverController.GetInstance().EdgeLayer.Count;
node.OriginVertexListCount = CloverController.GetInstance().VertexLayer.VertexCellTable.Count;
node.Type = SnapshotNodeKind.RotateKind;
shadowSystem.Snapshot(node);
}
catch (System.Exception ex)
{
System.Windows.MessageBox.Show(ex.ToString());
}
}
/// <summary>
/// 保存SnapshotNode节点到文件中
/// </summary>
/// <param name="node"></param>
void SaveSnapshotNode(SnapshotNode node)
{
writer.Write((int)node.Type);
writer.Write(node.FaceLeaves.Count);
foreach (Face face in node.FaceLeaves)
{
writer.Write(face.ID);
}
writer.Write(node.NewEdges.Count);
foreach (Edge edge in node.NewEdges)
{
writer.Write(edge.ID);
}
writer.Write(node.MovedVertexList.Count);
foreach (Vertex v in node.MovedVertexList)
{
writer.Write(v.ID);
}
writer.Write(node.OriginVertexListCount);
writer.Write(node.OriginEdgeListCount);
}