private void GeneratePieceMesh(PieceData p)
{
//use HashSet to prevent double vertices
HashSet <Vector2> vertices2DSet = new HashSet <Vector2>();
HashSet <Vector2> vertices2DColliderSet = new HashSet <Vector2>();
foreach (Neighbour n in p.neighbours)
{
//if this 'neighbour' is the boundary, set edgeType to straight
if (n.id == -1)
{
n.edgeType = PEdge.EdgeType.Straight;
}
//else if the edgeType wasn't set to something yet, set it here
//and also set the corresponding neighbours edgeType to the opposite type
else if (n.edgeType == PEdge.EdgeType.Nothing)
{
PieceData neighbourPiece = GetPieceData(n.id);
Neighbour meAsNeighbour = neighbourPiece.GetNeigbourWithID(p.id);
if (randomBool(p.id))
{
n.edgeType = PEdge.EdgeType.Shaped;
meAsNeighbour.edgeType = PEdge.EdgeType.ShapedInverse;
}
else
{
n.edgeType = PEdge.EdgeType.ShapedInverse;
meAsNeighbour.edgeType = PEdge.EdgeType.Shaped;
}
}
PEdge edge = new PEdge(p.baseVertices[n.v1], p.baseVertices[n.v2], n.edgeType, meshDetail);
PEdge edgeLowDetail = new PEdge(p.baseVertices[n.v1], p.baseVertices[n.v2], n.edgeType, colliderDetail);
edge.points.ForEach(point => vertices2DSet.Add(point));
edgeLowDetail.points.ForEach(point => vertices2DColliderSet.Add(point));
}
List <Vector2> vertices2D = vertices2DSet.ToList();
List <Vector2> vertices2DCollider = vertices2DColliderSet.ToList();
//create final visual mesh
Triangulator triangulator = new Triangulator(vertices2D);
int[] triangles = triangulator.Triangulate();
Vector3[] vertices = vertices2D.ConvertAll(v2 => new Vector3(v2.x, v2.y, 0f)).ToArray();
p.mesh = MeshFunctions.ExtrudeFlatPiece(vertices, triangles, thickness);
ProjectUV(p.mesh, p.position);
//create final collider mesh
triangulator = new Triangulator(vertices2DCollider);
int[] colliderTriangles = triangulator.Triangulate();
Vector3[] colliderVertices = vertices2DCollider.ConvertAll(v2 => new Vector3(v2.x, v2.y, 0f)).ToArray();
p.colliderMesh = MeshFunctions.ExtrudeFlatPieceNoSplit(colliderVertices, colliderTriangles, thickness);
}
