anchor: PolygonShape:getPoints
  Get the local coordinates of the polygon's vertices.
  
  This function has a variable number of return values. It can be used in a nested fashion with love.graphics.polygon.
  x1, y1, x2, y2 = PolygonShape:getPoints()
  x1 number The x-component of the first vertex.
  y1 number The y-component of the first vertex.
  x2 number The x-component of the second vertex.
  y2 number The y-component of the second vertex.