private void OnDrawGizmos()
{
UnityEngine.Random.seed = this.GetInstanceID();
Polygon2Ex pol = new Polygon2Ex(GetComponent <PolygonCollider2D> ().points);
// pol.GizmoColor = new Color (UnityEngine.Random.value, UnityEngine.Random.value, UnityEngine.Random.value);
// pol.ShowGizmo ();
Triangle2Ex[] tris = pol.ToTriangles();
foreach (Triangle2Ex tri in tris)
{
tri.GizmoColor = new Color(UnityEngine.Random.value, UnityEngine.Random.value, UnityEngine.Random.value);
tri.GizmoOffset = UnityEngine.Random.insideUnitCircle * .1f;
tri.ShowGizmo();
}
// Polygon2Ex[] pols = pol.ToSimplePolygons ();
//
// foreach (Polygon2Ex s_pol in pols) {
// s_pol.GizmoColor = new Color (UnityEngine.Random.value, UnityEngine.Random.value, UnityEngine.Random.value);
// s_pol.GizmoOffset = UnityEngine.Random.insideUnitCircle * .1f;
// s_pol.ShowGizmo ();
// }
}
public void BuildFillingMesh(Polygon2Ex polygon)
{
if (polygon != null)
{
Polygon = polygon;
}
List <Vector2> vertice_list = new List <Vector2> ();
List <int> triangle_points = new List <int> ();
Polygon2Ex[] pols = Polygon.ToSimplePolygons();
foreach (Polygon2Ex pol in pols)
{
int offset_idx = vertice_list.Count;
vertice_list.AddRange(pol.Vertices);
int[] vid_list = pol.ToTrianglesVertice();
triangle_points.AddRange(vid_list.Select(_ => _ + offset_idx).ToArray());
}
//Build the uv array
var scale = UVScale != 0 ? (1f / UVScale) : 0;
var matrix = Matrix4x4.TRS(-(Vector3)UVPosition, Quaternion.Euler(0, 0, UIRotation), new Vector3(scale, scale, 1));
var uv = new Vector2[vertice_list.Count];
for (int i = 0; i < uv.Length; i++)
{
var p = matrix.MultiplyPoint(vertice_list [i]);
uv [i] = new Vector2(p.x, p.y);
}
Transform fillingTran = transform.FindChild("Filling");
MeshFilter meshFilter = fillingTran.GetComponent <MeshFilter> ();
if (meshFilter == null)
{
meshFilter = fillingTran.gameObject.AddComponent <MeshFilter> ();
}
Mesh mesh = meshFilter.sharedMesh;
if (mesh == null)
{
mesh = new Mesh();
mesh.name = "filling mesh";
meshFilter.mesh = mesh;
}
//Update the mesh
mesh.Clear();
mesh.vertices = vertice_list.Select(v2 => (Vector3)v2).ToArray();
mesh.uv = uv;
mesh.triangles = triangle_points.ToArray();
mesh.RecalculateNormals();
mesh.Optimize();
}
public void BuildBorderMesh(Polygon2Ex polygon)
{
// Line2Ex line = new Line2Ex (Line2.CreateFromTwoPoints (polygon.Vertices [0], polygon.Vertices [1]));
// Line2Ex p_line = line.ToParallel (.1f);
// line.ShowGizmo ();
// p_line.ShowGizmo ();
Polygon2Ex border_extending_polygon = polygon.ToBorderExtendingPolygon(.2f);
border_extending_polygon.ShowGizmo();
}
public void Build(Polygon2Ex polygon)
{
Polygon = polygon;
BuildFillingMesh(polygon);
BuildBorderMesh(polygon);
}
private void OnDrawGizmos()
{
Polygon2Ex pol = new Polygon2Ex(GetComponent <PolygonCollider2D> ().points);
LimitedArea.Build(pol);
}
// Use this for initialization
void Start()
{
Polygon2Ex pol = new Polygon2Ex(GetComponent <PolygonCollider2D> ().points);
LimitedArea.Build(pol);
}