/// <summary>
/// Convert a closed path into a polygon.
/// Convex decomposition is automatically performed.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="density">The density.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToPolygon(Path path, Body body, float density, int subdivisions)
{
if (!path.Closed)
throw new Exception("The path must be closed to convert to a polygon.");
List<Vector2> verts = path.GetVertices(subdivisions);
List<Vertices> decomposedVerts = Triangulate.ConvexPartition(new Vertices(verts), TriangulationAlgorithm.Bayazit);
foreach (Vertices item in decomposedVerts)
{
body.CreateFixture(new PolygonShape(item, density));
}
}
//Contributed by Matthew Bettcher
/// <summary>
/// Convert a path into a set of edges and attaches them to the specified body.
/// Note: use only for static edges.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToEdges(Path path, Body body, int subdivisions)
{
List<Vector2> verts = path.GetVertices(subdivisions);
for (int i = 1; i < verts.Count; i++)
{
body.CreateFixture(new PolygonShape(PolygonTools.CreateEdge(verts[i], verts[i - 1]), 0));
}
if (path.Closed)
{
body.CreateFixture(new PolygonShape(PolygonTools.CreateEdge(verts[verts.Count - 1], verts[0]), 0));
}
}
/// <summary>
/// Convert a closed path into a polygon.
/// Convex decomposition is automatically performed.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="density">The density.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToPolygon(Path path, Body body, float density, int subdivisions)
{
if (!path.Closed)
throw new Exception("The path must be closed to convert to a polygon.");
var verts = path.GetVertices(subdivisions);
List<Vertices> decomposedVerts = EarclipDecomposer.ConvexPartition(new Vertices(verts));
//List<Vertices> decomposedVerts = BayazitDecomposer.ConvexPartition(new Vertices(verts));
foreach (Vertices item in decomposedVerts)
{
body.CreateFixture(new PolygonShape(item, density));
}
}
/// <summary>
/// Convert a closed path into a polygon.
/// Convex decomposition is automatically performed.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="density">The density.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToPolygon(Path path, Body body, float density, int subdivisions)
{
if (!path.IsClosed)
{
throw new Exception("The path must be closed to convert to a polygon.");
}
var verts = path.GetVertices(subdivisions);
var decomposedVerts = Triangulate.ConvexPartition(new Vertices(verts), TriangulationAlgorithm.Bayazit);
foreach (Vertices item in decomposedVerts)
{
body.CreateFixture(new PolygonShape(item, density));
}
}
//Contributed by Matthew Bettcher
/// <summary>
/// Convert a path into a set of edges and attaches them to the specified body.
/// Note: use only for static edges.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToEdges(Path path, Body body, int subdivisions)
{
Vertices verts = path.GetVertices(subdivisions);
if (path.Closed)
{
ChainShape chain = new ChainShape(verts, true);
body.CreateFixture(chain);
}
else
{
for (int i = 1; i < verts.Count; i++)
{
body.CreateFixture(new EdgeShape(verts[i], verts[i - 1]));
}
}
}
//Contributed by Matthew Bettcher
/// <summary>
/// Convert a path into a set of edges and attaches them to the specified body.
/// Note: use only for static edges.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="body">The body.</param>
/// <param name="subdivisions">The subdivisions.</param>
public static void ConvertPathToEdges(Path path, Body body, int subdivisions)
{
Vertices verts = path.GetVertices(subdivisions);
if (path.Closed)
{
LoopShape loop = new LoopShape(verts);
body.CreateFixture(loop);
}
else
{
for (int i = 1; i < verts.Count; i++)
{
body.CreateFixture(new EdgeShape(verts[i], verts[i - 1]));
}
}
}
