public static ClipperLib.PolyTree ExecuteClipper(TmxMap tmxMap, TmxLayer tmxLayer, TransformPointFunc xfFunc, ProgressFunc progFunc)
{
// The "fullClipper" combines the clipper results from the smaller pieces
ClipperLib.Clipper fullClipper = new ClipperLib.Clipper();
// From the perspective of Clipper lines are polygons too
// Closed paths == polygons
// Open paths == lines
var polygonGroups = from y in Enumerable.Range(0, tmxLayer.Height)
from x in Enumerable.Range(0, tmxLayer.Width)
let rawTileId = tmxLayer.GetRawTileIdAt(x, y)
let tileId = TmxMath.GetTileIdWithoutFlags(rawTileId)
where tileId != 0
let tile = tmxMap.Tiles[tileId]
from polygon in tile.ObjectGroup.Objects
where (polygon as TmxHasPoints) != null
let groupX = x / LayerClipper.GroupBySize
let groupY = y / LayerClipper.GroupBySize
group new
{
PositionOnMap = tmxMap.GetMapPositionAt(x, y, tile),
HasPointsInterface = polygon as TmxHasPoints,
TmxObjectInterface = polygon,
IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId),
IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId),
IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId),
TileCenter = new PointF(tile.TileSize.Width * 0.5f, tile.TileSize.Height * 0.5f),
}
by Tuple.Create(groupX, groupY);
int groupIndex = 0;
int groupCount = polygonGroups.Count();
foreach (var polyGroup in polygonGroups)
{
if (groupIndex % 5 == 0)
{
progFunc(String.Format("Clipping '{0}' polygons: {1}%", tmxLayer.Name, (groupIndex / (float)groupCount) * 100));
}
groupIndex++;
// The "groupClipper" clips the polygons in a smaller part of the world
ClipperLib.Clipper groupClipper = new ClipperLib.Clipper();
// Add all our polygons to the Clipper library so it can reduce all the polygons to a (hopefully small) number of paths
foreach (var poly in polyGroup)
{
// Create a clipper library polygon out of each and add it to our collection
ClipperPolygon clipperPolygon = new ClipperPolygon();
// Our points may be transformed due to tile flipping/rotation
// Before we transform them we put all the points into local space relative to the tile
SizeF offset = new SizeF(poly.TmxObjectInterface.Position);
PointF[] transformedPoints = poly.HasPointsInterface.Points.Select(pt => PointF.Add(pt, offset)).ToArray();
// Now transform the points relative to the tile
TmxMath.TransformPoints(transformedPoints, poly.TileCenter, poly.IsFlippedDiagnoally, poly.IsFlippedHorizontally, poly.IsFlippedVertically);
foreach (var pt in transformedPoints)
{
float x = poly.PositionOnMap.X + pt.X;
float y = poly.PositionOnMap.Y + pt.Y;
ClipperLib.IntPoint point = xfFunc(x, y);
clipperPolygon.Add(point);
}
// Because of Unity's cooridnate system, the winding order of the polygons must be reversed
clipperPolygon.Reverse();
// Add the "subject"
groupClipper.AddPath(clipperPolygon, ClipperLib.PolyType.ptSubject, poly.HasPointsInterface.ArePointsClosed());
}
// Get a solution for this group
ClipperLib.PolyTree solution = new ClipperLib.PolyTree();
groupClipper.Execute(ClipperLib.ClipType.ctUnion, solution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
// Combine the solutions into the full clipper
fullClipper.AddPaths(ClipperLib.Clipper.ClosedPathsFromPolyTree(solution), ClipperLib.PolyType.ptSubject, true);
fullClipper.AddPaths(ClipperLib.Clipper.OpenPathsFromPolyTree(solution), ClipperLib.PolyType.ptSubject, false);
}
progFunc(String.Format("Clipping '{0}' polygons: 100%", tmxLayer.Name));
ClipperLib.PolyTree fullSolution = new ClipperLib.PolyTree();
fullClipper.Execute(ClipperLib.ClipType.ctUnion, fullSolution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
return(fullSolution);
}
public static ClipperLib.PolyTree ExecuteClipper(TmxMap tmxMap, TmxLayer tmxLayer, TransformPointFunc xfFunc, ProgressFunc progFunc)
{
// The "fullClipper" combines the clipper results from the smaller pieces
ClipperLib.Clipper fullClipper = new ClipperLib.Clipper();
// Limit to polygon "type" that matches the collision layer name (unless we are overriding the whole layer to a specific Unity Layer Name)
bool usingUnityLayerOverride = !String.IsNullOrEmpty(tmxLayer.UnityLayerOverrideName);
// From the perspective of Clipper lines are polygons too
// Closed paths == polygons
// Open paths == lines
Dictionary <TupleInt2, List <PolygonGroup> > polygonGroups = new Dictionary <TupleInt2, List <PolygonGroup> >();
foreach (int y in Enumerable.Range(0, tmxLayer.Height))
{
foreach (int x in Enumerable.Range(0, tmxLayer.Width))
{
uint rawTileId = tmxLayer.GetRawTileIdAt(x, y);
if (rawTileId == 0)
{
continue;
}
uint tileId = TmxMath.GetTileIdWithoutFlags(rawTileId);
TmxTile tile = tmxMap.Tiles[tileId];
foreach (TmxObject polygon in tile.ObjectGroup.Objects)
{
if (typeof(TmxHasPoints).IsAssignableFrom(polygon.GetType()) &&
(usingUnityLayerOverride || String.Compare(polygon.Type, tmxLayer.Name, true) == 0))
{
int groupX = x / LayerClipper.GroupBySize;
int groupY = y / LayerClipper.GroupBySize;
PolygonGroup poly = new PolygonGroup();
poly.PositionOnMap = tmxMap.GetMapPositionAt(x, y, tile);
poly.HasPointsInterface = polygon as TmxHasPoints;
poly.TmxObjectInterface = polygon;
poly.IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId);
poly.IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId);
poly.IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId);
poly.TileCenter = new PointF(tile.TileSize.Width * 0.5f, tile.TileSize.Height * 0.5f);
TupleInt2 key = new TupleInt2(groupX, groupY);
if (!polygonGroups.ContainsKey(key))
{
polygonGroups[key] = new List <PolygonGroup>();
}
polygonGroups[key].Add(poly);
}
}
}
}
// Tuple not supported in Mono 2.0 so doing this the old fashioned way, sorry
//var polygonGroups = from y in Enumerable.Range(0, tmxLayer.Height)
// from x in Enumerable.Range(0, tmxLayer.Width)
// let rawTileId = tmxLayer.GetRawTileIdAt(x, y)
// where rawTileId != 0
// let tileId = TmxMath.GetTileIdWithoutFlags(rawTileId)
// let tile = tmxMap.Tiles[tileId]
// from polygon in tile.ObjectGroup.Objects
// where (polygon as TmxHasPoints) != null
// where usingUnityLayerOverride || String.Compare(polygon.Type, tmxLayer.Name, true) == 0
// let groupX = x / LayerClipper.GroupBySize
// let groupY = y / LayerClipper.GroupBySize
// group new
// {
// PositionOnMap = tmxMap.GetMapPositionAt(x, y, tile),
// HasPointsInterface = polygon as TmxHasPoints,
// TmxObjectInterface = polygon,
// IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId),
// IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId),
// IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId),
// TileCenter = new PointF(tile.TileSize.Width * 0.5f, tile.TileSize.Height * 0.5f),
// }
// by Tuple.Create(groupX, groupY);
int groupIndex = 0;
int groupCount = polygonGroups.Count();
foreach (TupleInt2 key in polygonGroups.Keys)
{
if (groupIndex % 5 == 0)
{
progFunc(String.Format("Clipping '{0}' polygons: {1}%", tmxLayer.Name, (groupIndex / (float)groupCount) * 100));
}
groupIndex++;
// The "groupClipper" clips the polygons in a smaller part of the world
ClipperLib.Clipper groupClipper = new ClipperLib.Clipper();
// Add all our polygons to the Clipper library so it can reduce all the polygons to a (hopefully small) number of paths
foreach (PolygonGroup poly in polygonGroups[key])
{
// Create a clipper library polygon out of each and add it to our collection
ClipperPolygon clipperPolygon = new ClipperPolygon();
// Our points may be transformed due to tile flipping/rotation
// Before we transform them we put all the points into local space relative to the tile
SizeF offset = new SizeF(poly.TmxObjectInterface.Position);
PointF[] transformedPoints = poly.HasPointsInterface.Points.Select(pt => PointF.Add(pt, offset)).ToArray();
// Now transform the points relative to the tile
TmxMath.TransformPoints(transformedPoints, poly.TileCenter, poly.IsFlippedDiagnoally, poly.IsFlippedHorizontally, poly.IsFlippedVertically);
foreach (var pt in transformedPoints)
{
float x = poly.PositionOnMap.X + pt.X;
float y = poly.PositionOnMap.Y + pt.Y;
ClipperLib.IntPoint point = xfFunc(x, y);
clipperPolygon.Add(point);
}
// Because of Unity's cooridnate system, the winding order of the polygons must be reversed
clipperPolygon.Reverse();
// Add the "subject"
groupClipper.AddPath(clipperPolygon, ClipperLib.PolyType.ptSubject, poly.HasPointsInterface.ArePointsClosed());
}
// Get a solution for this group
ClipperLib.PolyTree solution = new ClipperLib.PolyTree();
groupClipper.Execute(ClipperLib.ClipType.ctUnion, solution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
// Combine the solutions into the full clipper
fullClipper.AddPaths(ClipperLib.Clipper.ClosedPathsFromPolyTree(solution), ClipperLib.PolyType.ptSubject, true);
fullClipper.AddPaths(ClipperLib.Clipper.OpenPathsFromPolyTree(solution), ClipperLib.PolyType.ptSubject, false);
}
progFunc(String.Format("Clipping '{0}' polygons: 100%", tmxLayer.Name));
ClipperLib.PolyTree fullSolution = new ClipperLib.PolyTree();
fullClipper.Execute(ClipperLib.ClipType.ctUnion, fullSolution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
return(fullSolution);
}
public static PolyTree ExecuteClipper(TmxMap map, TmxChunk chunk, TransformPointFunc xfFunc)
{
////for(int i=0;i<chunk.Height;i++)
//// {
//// for(int j=0; j<chunk.Width;j++)
//// {
//// var raw = chunk.GetRawTileIdAt(j, i);
//// if(raw!=0)
//// {
//// var tid = TmxMath.GetTileIdWithoutFlags(raw);
//// var tile = map.Tiles[tid];
//// foreach(var p in tile.ObjectGroup.Objects)
//// {
//// if(p is TmxHasPoints)
//// {
//// p.ToEnumerable().Where((x) =>
//// {
//// if (!usingUnityLayerOverride)
//// {
//// return string.Compare(tuple.Item1.Type, chunk.ParentData.ParentLayer.Name, true) == 0;
//// }
//// return true;
//// });
//// }
//// }
//// }
//// }
//// }
// Clipper clipper = new Clipper(0);
// Tuple<TmxObject, TmxTile, uint> tuple = new Tuple<TmxObject, TmxTile, uint>(null, null, 0);
// bool usingUnityLayerOverride = !string.IsNullOrEmpty(chunk.ParentData.ParentLayer.UnityLayerOverrideName);
// foreach (var item2 in from h__TransparentIdentifier4 in (from y in Enumerable.Range(0, chunk.Height)
// from x in Enumerable.Range(0, chunk.Width)
// let rawTileId = chunk.GetRawTileIdAt(x, y)
// where rawTileId != 0
// let tileId = TmxMath.GetTileIdWithoutFlags(rawTileId)
// let tile = map.Tiles[tileId]
// from polygon in tile.ObjectGroup.Objects
// where polygon is TmxHasPoints
// select polygon.ToEnumerable().ToList().TrueForAll
// (h__TransparentIdentifier4 =>
// {
// UnityEngine.Debug.Log("liudaodelh");
// tuple = new Tuple<TmxObject, TmxTile, uint>(polygon, tile, rawTileId);
// if (!usingUnityLayerOverride)
// {
// return string.Compare(tuple.Item1.Type, chunk.ParentData.ParentLayer.Name, true) == 0;
// }
// return true;
// }))
// select new
// {
// PositionOnMap = map.GetMapPositionAt((int)tuple.Item1.Position.X + chunk.X, (int)tuple.Item1.Position.Y + chunk.Y, tuple.Item2),
// HasPointsInterface = (tuple.Item1 as TmxHasPoints),
// TmxObjectInterface = tuple.Item1,
// IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(tuple.Item3),
// IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(tuple.Item3),
// IsFlippedVertically = TmxMath.IsTileFlippedVertically(tuple.Item3),
// TileCenter = new PointF((float)tuple.Item2.TileSize.Width * 0.5f, (float)tuple.Item2.TileSize.Height * 0.5f)
// })
// {
// List<IntPoint> list = new List<IntPoint>();
// SizeF offset = new SizeF(item2.TmxObjectInterface.Position);
// PointF[] array = item2.HasPointsInterface.Points.Select((PointF pt) => PointF.Add(pt, offset)).ToArray();
// TmxMath.TransformPoints(array, item2.TileCenter, item2.IsFlippedDiagnoally, item2.IsFlippedHorizontally, item2.IsFlippedVertically);
// PointF[] array2 = array;
// for (int i = 0; i < array2.Length; i++)
// {
// PointF pointF = array2[i];
// float x2 = (float)item2.PositionOnMap.X + pointF.X;
// float y2 = (float)item2.PositionOnMap.Y + pointF.Y;
// IntPoint item = xfFunc(x2, y2);
// list.Add(item);
// }
// list.Reverse();
// clipper.AddPath(list, PolyType.ptSubject, item2.HasPointsInterface.ArePointsClosed());
// }
// PolyTree polyTree = new PolyTree();
// clipper.Execute(ClipType.ctUnion, polyTree, SubjectFillRule, ClipFillRule);
// return polyTree;
ClipperLib.Clipper clipper = new ClipperLib.Clipper();
// Limit to polygon "type" that matches the collision layer name (unless we are overriding the whole layer to a specific Unity Layer Name)
bool usingUnityLayerOverride = !String.IsNullOrEmpty(chunk.ParentData.ParentLayer.UnityLayerOverrideName);
var polygons = from y in Enumerable.Range(0, chunk.Height)
from x in Enumerable.Range(0, chunk.Width)
let rawTileId = chunk.GetRawTileIdAt(x, y)
where rawTileId != 0
let tileId = TmxMath.GetTileIdWithoutFlags(rawTileId)
let tile = map.Tiles[tileId]
from polygon in tile.ObjectGroup.Objects
where (polygon as TmxHasPoints) != null
where usingUnityLayerOverride || String.Compare(polygon.Type, chunk.ParentData.ParentLayer.Name, true) == 0
select new
{
PositionOnMap = map.GetMapPositionAt(x + chunk.X, y + chunk.Y, tile),
HasPointsInterface = polygon as TmxHasPoints,
TmxObjectInterface = polygon,
IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId),
IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId),
IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId),
TileCenter = new PointF(tile.TileSize.Width * 0.5f, tile.TileSize.Height * 0.5f),
};
// Add all our polygons to the Clipper library so it can reduce all the polygons to a (hopefully small) number of paths
foreach (var poly in polygons)
{
// Create a clipper library polygon out of each and add it to our collection
ClipperPolygon clipperPolygon = new ClipperPolygon();
// Our points may be transformed due to tile flipping/rotation
// Before we transform them we put all the points into local space relative to the tile
SizeF offset = new SizeF(poly.TmxObjectInterface.Position);
PointF[] transformedPoints = poly.HasPointsInterface.Points.Select(pt => PointF.Add(pt, offset)).ToArray();
// Now transform the points relative to the tile
TmxMath.TransformPoints(transformedPoints, poly.TileCenter, poly.IsFlippedDiagnoally, poly.IsFlippedHorizontally, poly.IsFlippedVertically);
foreach (var pt in transformedPoints)
{
float x = poly.PositionOnMap.X + pt.X;
float y = poly.PositionOnMap.Y + pt.Y;
ClipperLib.IntPoint point = xfFunc(x, y);
clipperPolygon.Add(point);
}
// Because of Unity's cooridnate system, the winding order of the polygons must be reversed
clipperPolygon.Reverse();
// Add the "subject"
clipper.AddPath(clipperPolygon, ClipperLib.PolyType.ptSubject, poly.HasPointsInterface.ArePointsClosed());
}
ClipperLib.PolyTree solution = new ClipperLib.PolyTree();
clipper.Execute(ClipperLib.ClipType.ctUnion, solution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
return(solution);
}
public static ClipperLib.PolyTree ExecuteClipper(TmxMap tmxMap, TmxLayer tmxLayer, TransformPointFunc xfFunc, ProgressFunc progFunc)
{
// The "fullClipper" combines the clipper results from the smaller pieces
ClipperLib.Clipper fullClipper = new ClipperLib.Clipper();
// From the perspective of Clipper lines are polygons too
// Closed paths == polygons
// Open paths == lines
var polygonGroups = from y in Enumerable.Range(0, tmxLayer.Height)
from x in Enumerable.Range(0, tmxLayer.Width)
let rawTileId = tmxLayer.GetRawTileIdAt(x, y)
let tileId = TmxMath.GetTileIdWithoutFlags(rawTileId)
where tileId != 0
let tile = tmxMap.Tiles[tileId]
from polygon in tile.ObjectGroup.Objects
where (polygon as TmxHasPoints) != null
let groupX = x / LayerClipper.GroupBySize
let groupY = y / LayerClipper.GroupBySize
group new
{
PositionOnMap = tmxMap.GetMapPositionAt(x, y, tile),
HasPointsInterface = polygon as TmxHasPoints,
TmxObjectInterface = polygon,
IsFlippedDiagnoally = TmxMath.IsTileFlippedDiagonally(rawTileId),
IsFlippedHorizontally = TmxMath.IsTileFlippedHorizontally(rawTileId),
IsFlippedVertically = TmxMath.IsTileFlippedVertically(rawTileId),
TileCenter = new PointF(tile.TileSize.Width * 0.5f, tile.TileSize.Height * 0.5f),
}
by Tuple.Create(groupX, groupY);
int groupIndex = 0;
int groupCount = polygonGroups.Count();
foreach (var polyGroup in polygonGroups)
{
if (groupIndex % 5 == 0)
{
progFunc(String.Format("Clipping '{0}' polygons: {1}%", tmxLayer.Name, (groupIndex / (float)groupCount) * 100));
}
groupIndex++;
// The "groupClipper" clips the polygons in a smaller part of the world
ClipperLib.Clipper groupClipper = new ClipperLib.Clipper();
// Add all our polygons to the Clipper library so it can reduce all the polygons to a (hopefully small) number of paths
foreach (var poly in polyGroup)
{
// Create a clipper library polygon out of each and add it to our collection
ClipperPolygon clipperPolygon = new ClipperPolygon();
// Our points may be transformed due to tile flipping/rotation
// Before we transform them we put all the points into local space relative to the tile
SizeF offset = new SizeF(poly.TmxObjectInterface.Position);
PointF[] transformedPoints = poly.HasPointsInterface.Points.Select(pt => PointF.Add(pt, offset)).ToArray();
// Now transform the points relative to the tile
TmxMath.TransformPoints(transformedPoints, poly.TileCenter, poly.IsFlippedDiagnoally, poly.IsFlippedHorizontally, poly.IsFlippedVertically);
foreach (var pt in transformedPoints)
{
float x = poly.PositionOnMap.X + pt.X;
float y = poly.PositionOnMap.Y + pt.Y;
ClipperLib.IntPoint point = xfFunc(x, y);
clipperPolygon.Add(point);
}
// Because of Unity's cooridnate system, the winding order of the polygons must be reversed
clipperPolygon.Reverse();
// Add the "subject"
groupClipper.AddPath(clipperPolygon, ClipperLib.PolyType.ptSubject, poly.HasPointsInterface.ArePointsClosed());
}
// Get a solution for this group
ClipperLib.PolyTree solution = new ClipperLib.PolyTree();
groupClipper.Execute(ClipperLib.ClipType.ctUnion, solution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
// Combine the solutions into the full clipper
fullClipper.AddPaths(ClipperLib.Clipper.ClosedPathsFromPolyTree(solution), ClipperLib.PolyType.ptSubject, true);
fullClipper.AddPaths(ClipperLib.Clipper.OpenPathsFromPolyTree(solution), ClipperLib.PolyType.ptSubject, false);
}
progFunc(String.Format("Clipping '{0}' polygons: 100%", tmxLayer.Name));
ClipperLib.PolyTree fullSolution = new ClipperLib.PolyTree();
fullClipper.Execute(ClipperLib.ClipType.ctUnion, fullSolution, LayerClipper.SubjectFillRule, LayerClipper.ClipFillRule);
return fullSolution;
}
