void OnCollisionEnter2D(Collision2D collision)
{
Vector2 norm = -collision.contacts[0].normal;
for (int i = 0; i < meshLayers.Length; i++)
{
PrettyPolyMeshLayer layer = meshLayers[i];
if (layer != null && layer.isTrigger && layer.ExistsInDirection(norm))
{
onCollision2D(collision, layer);
}
}
}
static void CreatePrettyPoly()
{
Camera sceneCam = SceneView.lastActiveSceneView.camera;
Vector3 spawnPos = sceneCam.ViewportToWorldPoint(new Vector3(0.5f,0.5f,10f));
GameObject go = new GameObject("PrettyPoly");
go.transform.position = spawnPos;
Selection.activeGameObject = go;
PrettyPoly p = go.AddComponent<PrettyPoly>();
UpdateLabels(p);
p.points = new PrettyPolyPoint[] {
new PrettyPolyPoint(new Vector3(-1,-1,0)),
new PrettyPolyPoint(new Vector3(1,-1,0)),
new PrettyPolyPoint(new Vector3(0,1,0))
};
p.closed = true;
PrettyPolyMeshLayer l = new PrettyPolyMeshLayer();
p.meshLayers = new PrettyPolyMeshLayer[] {l};
p.UpdateMesh();
go.GetComponent<Renderer>().materials = new Material[] {new Material(Shader.Find("Sprites/Default"))};
Undo.RegisterCreatedObjectUndo(go, "Created PrettyPoly");
}
public void UpdateMesh()
{
PrettyPolyPoint[] pts = (subdivisions > 0)? GetCurve(): points;
if (addCollider)
{
AddCollider(pts);
}
else
{
gameObject.DestroyComponent <PolygonCollider2D>();
}
if (meshLayers == null || meshLayers.Length == 0)
{
mesh.Clear();
return;
}
mesh.Clear();
List <Vector3> verts = new List <Vector3>();
List <Vector2> uvs = new List <Vector2>();
List <Color> colors = new List <Color>();
List <Vector3> norms = new List <Vector3>();
List <Vector4> tans = new List <Vector4>();
List <List <int> > tris = new List <List <int> >();
for (int i = 0; i < materials.Length; i++)
{
tris.Add(new List <int>());
}
Vector3[] positions = System.Array.ConvertAll(pts, point => point.position);
float winding = closed ? positions.ClosedWinding() : positions.Winding();
pts = (winding < 0) ? pts.Reverse() : pts.Shift(2);
int matIndex = -1;
Material prevMat = null;
for (int i = 0; i < meshLayers.Length; i++)
{
PrettyPolyMeshLayer layer = sortedLayers[i];
if (layer == null)
{
continue;
}
Mesh m = layer.GetMesh(pts, closed);
if (m == null)
{
continue;
}
Material mat = layer.material;
if (mat != prevMat)
{
matIndex++;
}
prevMat = mat;
tris[matIndex].AddRange(
System.Array.ConvertAll(m.triangles, t => t + verts.Count)
);
verts.AddRange(m.vertices);
uvs.AddRange(m.uv);
colors.AddRange(m.colors);
norms.AddRange(m.normals);
tans.AddRange(m.tangents);
}
mesh.vertices = verts.ToArray();
mesh.uv = uvs.ToArray();
mesh.colors = colors.ToArray();
mesh.normals = norms.ToArray();
mesh.tangents = tans.ToArray();
mesh.subMeshCount = materials.Length;
for (int i = materials.Length - 1; i >= 0; i--)
{
mesh.SetTriangles(tris[i].ToArray(), i);
}
mesh.RecalculateBounds();
if (Application.isPlaying)
{
GetComponent <MeshFilter>().mesh = mesh;
}
else
{
GetComponent <MeshFilter>().sharedMesh = mesh;
}
UpdateRenderer();
}
