private void UpdateMesh()
{
OnlineMapsTileSetControl control = OnlineMapsTileSetControl.instance;
if (tilesetCollider == null)
{
tilesetCollider = control.GetComponent <Collider>();
}
Bounds bounds = tilesetCollider.bounds;
// Clear overlay mesh
overlayMesh.Clear(true);
// Init verticles and normals
float y = bounds.max.y + 0.5f;
overlayMesh.vertices = new[]
{
new Vector3(bounds.min.x, y, bounds.min.z),
new Vector3(bounds.min.x, y, bounds.max.z),
new Vector3(bounds.max.x, y, bounds.max.z),
new Vector3(bounds.max.x, y, bounds.min.z)
};
overlayMesh.normals = new[]
{
Vector3.up,
Vector3.up,
Vector3.up,
Vector3.up
};
// Init overlay UV
OnlineMaps map = OnlineMaps.instance;
double tlx, tly, brx, bry;
map.GetTileCorners(out tlx, out tly, out brx, out bry);
int maxTileCount = 1 << map.zoom;
float uvX1 = (float)(tlx / maxTileCount);
float uvX2 = (float)(brx / maxTileCount);
if (uvX1 > uvX2)
{
uvX2 += 1;
}
float uvY1 = (float)(1 - tly / maxTileCount);
float uvY2 = (float)(1 - bry / maxTileCount);
overlayMesh.uv = new[]
{
new Vector2(uvX2, uvY1),
new Vector2(uvX2, uvY2),
new Vector2(uvX1, uvY2),
new Vector2(uvX1, uvY1)
};
// Init triangles
overlayMesh.SetTriangles(new[]
{
0, 1, 2,
0, 2, 3
}, 0);
overlayMesh.RecalculateBounds();
overlayMesh.RecalculateNormals();
}