This is my polygon drawer. You can use it to draw polygons (If you use it in your project, please give Credits). If you want to add Polygons then use Polygons list to do it. Every corner (vertex) has X and Y position. Inside this project there are 2 functions, their names say what they do. In this demo you can grab corners (vertices) and see how it will draw it.
If you use it then please give credits.