/// <summary>
/// Generate Colliders based on Tile Collisions
/// </summary>
/// <param name="isTrigger">True for Trigger Collider, false otherwise</param>
/// <param name="zDepth">Z Depth of the collider.</param>
/// <param name="colliderWidth">Width of the collider, in Units</param>
/// <param name="used2DColider">True to generate a 2D collider, false to generate a 3D collider.</param>
/// <param name="innerCollision">If true, calculate normals facing the anchor of the collider (inside collisions), else, outside collisions.</param>
/// <returns>A GameObject containing all generated colliders</returns>
public GameObject GenerateTileCollisions(bool used2DColider = true, bool isTrigger = false, float zDepth = 0, float colliderWidth = 1, bool innerCollision = false)
{
GameObject tileColisions = new GameObject("Tile Collisions");
tileColisions.transform.parent = MapObject.transform;
tileColisions.transform.localPosition = Vector3.zero;
ClipperLib.Clipper clipper = new ClipperLib.Clipper();
List<List<ClipperLib.IntPoint>> pathsList = new List<List<ClipperLib.IntPoint>>();
List<List<ClipperLib.IntPoint>> solution = new List<List<ClipperLib.IntPoint>>();
// Iterate over each Tile Layer, grab all TileObjects inside this layer and use their Paths with ClipperLib to generate one polygon collider
foreach (var layer in Layers)
{
if (layer is TileLayer)
{
clipper.Clear();
solution.Clear();
pathsList.Clear();
TileLayer tileLayer = layer as TileLayer;
for (int x = 0; x < tileLayer.Tiles.Width; x++)
{
for (int y = 0; y < tileLayer.Tiles.Height; y++)
{
Tile t = tileLayer.Tiles[x, y];
if (t == null || t.TileSet == null || t.TileSet.TilesObjects == null)
continue;
if (t.TileSet.TilesObjects.ContainsKey(t.OriginalID))
{
List<TileObject> tileObjs = t.TileSet.TilesObjects[t.OriginalID];
foreach (var tileObj in tileObjs)
{
pathsList.Add(tileObj.GetPath(x, y, t.SpriteEffects, _tileObjectEllipsePrecision));
}
}
}
}
// Add the paths to be merged to ClipperLib
clipper.AddPaths(pathsList, ClipperLib.PolyType.ptSubject, true);
// Merge it!
//clipper.PreserveCollinear = false;
//clipper.ReverseSolution = true;
clipper.StrictlySimple = _simpleTileObjectCalculation;
if (!clipper.Execute(ClipperLib.ClipType.ctUnion, solution))
continue;
clipper.Execute(ClipperLib.ClipType.ctUnion, solution);
// Now solution should contain all vertices of the collision object, but they are still multiplied by TileObject.ClipperScale!
#region Implementation of increase and decrease offset polygon.
if(_simpleTileObjectCalculation == false) {
// Link of the example of ClipperLib:
// http://www.angusj.com/delphi/clipper/documentation/Docs/Units/ClipperLib/Classes/ClipperOffset/_Body.htm
ClipperLib.ClipperOffset co = new ClipperLib.ClipperOffset(_clipperMiterLimit,_clipperArcTolerance);
foreach(List<ClipperLib.IntPoint> item in solution) {
co.AddPath(item, _clipperJoinType,_clipperEndType);
}
solution.Clear();
co.Execute(ref solution, _clipperDeltaOffset*TileObject.ClipperScale);
}
#endregion
// Generate this path's collision
GameObject newCollider = new GameObject("Tile Collisions " + layer.Name);
newCollider.transform.parent = tileColisions.transform;
newCollider.transform.localPosition = new Vector3(0, 0, zDepth);
// Finally, generate the edge collider
int counter = 0;
for (int i = 0; i < solution.Count; i++)
{
if (solution[i].Count < 1)
continue;
List<Vector2> points = new List<Vector2>();
for (int j = 0; j < solution[i].Count; j++)
{
points.Add(
new Vector2(
solution[i][j].X / (float)TileObject.ClipperScale,
solution[i][j].Y / (float)TileObject.ClipperScale
)
);
}
if (used2DColider)
Generate2DTileCollision(tileLayer, counter, newCollider.transform, points, isTrigger, zDepth);
else
Generate3DTileCollision(tileLayer, counter, newCollider.transform, points, isTrigger, zDepth, colliderWidth, innerCollision);
counter++;
}
newCollider.isStatic = true;
}
}
return tileColisions;
}
public static List<List<Vector2>> GenerateClipperPathPoints(TileLayer tileLayer,
bool simpleTileObjectCalculation = true,
double clipperArcTolerance = 0.25, double clipperMiterLimit = 2.0,
ClipperLib.JoinType clipperJoinType = ClipperLib.JoinType.jtRound,
ClipperLib.EndType clipperEndType = ClipperLib.EndType.etClosedPolygon,
float clipperDeltaOffset = 0)
{
ClipperLib.Clipper clipper = new ClipperLib.Clipper();
List<List<ClipperLib.IntPoint>> pathsList = new List<List<ClipperLib.IntPoint>>();
List<List<ClipperLib.IntPoint>> solution = new List<List<ClipperLib.IntPoint>>();
List<List<Vector2>> points = new List<List<Vector2>>();
for (int x = 0; x < tileLayer.Tiles.Width; x++)
{
for (int y = 0; y < tileLayer.Tiles.Height; y++)
{
Tile t = tileLayer.Tiles[x, y];
if (t == null || t.TileSet == null || t.TileSet.TilesObjects == null)
continue;
if (t.TileSet.TilesObjects.ContainsKey(t.OriginalID))
{
List<TileObject> tileObjs = t.TileSet.TilesObjects[t.OriginalID];
foreach (var tileObj in tileObjs)
{
pathsList.Add(tileObj.GetPath(x, y, t.SpriteEffects, tileLayer.BaseMap.MapRenderParameter.TileWidth, tileLayer.BaseMap.MapRenderParameter.TileHeight));
}
}
}
}
// Add the paths to be merged to ClipperLib
clipper.AddPaths(pathsList, ClipperLib.PolyType.ptSubject, true);
// Merge it!
//clipper.PreserveCollinear = false;
//clipper.ReverseSolution = true;
clipper.StrictlySimple = simpleTileObjectCalculation;
if (!clipper.Execute(ClipperLib.ClipType.ctUnion, solution))
return points;
clipper.Execute(ClipperLib.ClipType.ctUnion, solution);
// Now solution should contain all vertices of the collision object, but they are still multiplied by TileObject.ClipperScale!
#region Implementation of increase and decrease offset polygon.
if (simpleTileObjectCalculation == false)
{
// Link of the example of ClipperLib:
// http://www.angusj.com/delphi/clipper/documentation/Docs/Units/ClipperLib/Classes/ClipperOffset/_Body.htm
ClipperLib.ClipperOffset co = new ClipperLib.ClipperOffset(clipperMiterLimit, clipperArcTolerance);
foreach (List<ClipperLib.IntPoint> item in solution)
{
co.AddPath(item, clipperJoinType, clipperEndType);
}
solution.Clear();
co.Execute(ref solution, clipperDeltaOffset * TileObject.ClipperScale);
}
#endregion
for (int i = 0; i < solution.Count; i++)
{
if (solution[i].Count < 1)
continue;
points.Add(new List<Vector2>());
for (int j = 0; j < solution[i].Count; j++)
{
points[i].Add(
new Vector2(
solution[i][j].X / (float)TileObject.ClipperScale,
solution[i][j].Y / (float)TileObject.ClipperScale
)
);
}
}
return points;
}
public static List <PointLatLngAlt> CreateRotary(List <PointLatLngAlt> polygon, double altitude, double distance, double spacing, double angle, double overshoot1, double overshoot2, StartPosition startpos, bool shutter, float minLaneSeparation, float leadin, PointLatLngAlt HomeLocation)
{
spacing = 0;
if (distance < 0.1)
{
distance = 0.1;
}
if (polygon.Count == 0)
{
return(new List <PointLatLngAlt>());
}
List <utmpos> ans = new List <utmpos>();
// utm zone distance calcs will be done in
int utmzone = polygon[0].GetUTMZone();
// utm position list
List <utmpos> utmpositions = utmpos.ToList(PointLatLngAlt.ToUTM(utmzone, polygon), utmzone);
// close the loop if its not already
if (utmpositions[0] != utmpositions[utmpositions.Count - 1])
{
utmpositions.Add(utmpositions[0]); // make a full loop
}
var maxlane = 200; // (Centroid(utmpositions).GetDistance(utmpositions[0]) / distance);
ClipperLib.ClipperOffset clipperOffset = new ClipperLib.ClipperOffset();
clipperOffset.AddPath(utmpositions.Select(a => { return(new ClipperLib.IntPoint(a.x * 1000.0, a.y * 1000.0)); }).ToList(), ClipperLib.JoinType.jtMiter, ClipperLib.EndType.etClosedPolygon);
for (int lane = 0; lane < maxlane; lane++)
{
List <utmpos> ans1 = new List <utmpos>();
ClipperLib.PolyTree tree = new ClipperLib.PolyTree();
clipperOffset.Execute(ref tree, (Int64)(distance * 1000.0 * -lane));
if (tree.ChildCount == 0)
{
break;
}
foreach (var treeChild in tree.Childs)
{
ans1 = treeChild.Contour.Select(a => new utmpos(a.X / 1000.0, a.Y / 1000.0, utmzone))
.ToList();
if (ans.Count() > 2)
{
var start1 = ans[ans.Count() - 1];
var end1 = ans[ans.Count() - 2];
var start2 = ans1[0];
var end2 = ans1[ans1.Count() - 1];
}
ans.AddRange(ans1);
}
}
// set the altitude on all points
return(ans.Select(plla => { var a = plla.ToLLA(); a.Alt = altitude; a.Tag = "S"; return a; }).ToList());
}
public static List <PointLatLngAlt> CreateRotary(List <PointLatLngAlt> polygon, double altitude, double distance, double spacing, double angle, double overshoot1, double overshoot2, StartPosition startpos, bool shutter, float minLaneSeparation, float leadin, PointLatLngAlt HomeLocation, int clockwise_laps, bool match_spiral_perimeter, int laps)
{
spacing = 0;
if (distance < 0.1)
{
distance = 0.1;
}
if (polygon.Count == 0)
{
return(new List <PointLatLngAlt>());
}
List <utmpos> ans = new List <utmpos>();
// utm zone distance calcs will be done in
int utmzone = polygon[0].GetUTMZone();
// utm position list
List <utmpos> utmpositions = utmpos.ToList(PointLatLngAlt.ToUTM(utmzone, polygon), utmzone);
// close the loop if its not already
if (utmpositions[0] != utmpositions[utmpositions.Count - 1])
{
utmpositions.Add(utmpositions[0]); // make a full loop
}
var maxlane = laps; // (Centroid(utmpositions).GetDistance(utmpositions[0]) / distance);
ClipperLib.ClipperOffset clipperOffset = new ClipperLib.ClipperOffset();
clipperOffset.AddPath(utmpositions.Select(a => { return(new ClipperLib.IntPoint(a.x * 1000.0, a.y * 1000.0)); }).ToList(), ClipperLib.JoinType.jtMiter, ClipperLib.EndType.etClosedPolygon);
for (int lane = 0; lane < maxlane; lane++)
{
List <utmpos> ans1 = new List <utmpos>();
ClipperLib.PolyTree tree = new ClipperLib.PolyTree();
clipperOffset.Execute(ref tree, (Int64)(distance * 1000.0 * -lane));
if (tree.ChildCount == 0)
{
break;
}
if (lane < clockwise_laps || clockwise_laps < 0)
{
ClipperLib.Clipper.ReversePaths(ClipperLib.Clipper.PolyTreeToPaths(tree));
}
foreach (var treeChild in tree.Childs)
{
ans1 = treeChild.Contour.Select(a => new utmpos(a.X / 1000.0, a.Y / 1000.0, utmzone))
.ToList();
if (lane == 0 && clockwise_laps != 1 && match_spiral_perimeter)
{
ans1.Insert(0, ans1.Last <utmpos>()); // start at the last point of the first calculated lap
// to make a closed polygon on the first trip around
}
if (lane == clockwise_laps - 1)
{
ans1.Add(ans1.First <utmpos>()); // revisit the first waypoint on this lap to cleanly exit the CW pattern
}
if (ans.Count() > 2)
{
var start1 = ans[ans.Count() - 1];
var end1 = ans[ans.Count() - 2];
var start2 = ans1[0];
var end2 = ans1[ans1.Count() - 1];
}
ans.AddRange(ans1);
}
}
// set the altitude on all points
return(ans.Select(plla => { var a = plla.ToLLA(); a.Alt = altitude; a.Tag = "S"; return a; }).ToList());
}
