Function NavigationPolygon.addOutlineAtIndex

Adds a PoolVector2Array that contains the vertices of an outline to the internal array that contains all the outlines at a fixed position. You have to call makePolygonsFromOutlines in order for this array to be converted to polygons that the engine will use.

void addOutlineAtIndex (
  const(PoolArray!(godot.core.vector2.Vector2)) outline,
  const(long) index
) nothrow @nogc;