private static void ReplaceWithPolygonCollider2D(CompositeCollider2D composite)
{
var go = composite.gameObject;
// The convex shape parts are put into our specialized collider component for debug drawing
var super = go.AddComponent <SuperColliderComponent>();
var combined = go.AddComponent <PolygonCollider2D>();
combined.pathCount = composite.pathCount;
combined.isTrigger = composite.isTrigger;
// Copy composite paths to combined PolygonCollider2D
for (int p = 0; p < composite.pathCount; p++)
{
var points = composite.GetPathPoints(p);
if (points.Length > 0)
{
combined.SetPath(p, points);
}
}
// Switch the composite collider to outlines in order to get the outline of our convex with holes polygon
if (composite.geometryType != CompositeCollider2D.GeometryType.Outlines)
{
composite.geometryType = CompositeCollider2D.GeometryType.Outlines;
composite.GenerateGeometry();
}
// Add outline shapes
for (int p = 0; p < composite.pathCount; p++)
{
var points = composite.GetPathPoints(p);
if (points.Length != 0)
{
super.AddOutline(points);
}
}
// Add shapes from polygon children (which are guaranteed to be convex)
var childPolygons = go.GetComponentsInChildren <PolygonCollider2D>();
foreach (var poly in childPolygons)
{
if (poly.usedByComposite == true)
{
super.AddPolygonShape(poly.GetPath(0));
}
}
}
private static void ReplaceWithEdgeCollider2Ds(CompositeCollider2D composite)
{
// Add an edge collider child for every path in our composite
var go = composite.gameObject;
for (int p = 0; p < composite.pathCount; p++)
{
var points = composite.GetPathPoints(p).ToList();
// Close the loop
points.Add(points[0]);
// Add the edge child
var goEdge = new GameObject("Edge");
go.AddChildWithUniqueName(goEdge);
var edge = goEdge.AddComponent <EdgeCollider2D>();
edge.isTrigger = composite.isTrigger;
edge.points = points.ToArray();
goEdge.AddComponent <SuperColliderComponent>();
}
}