Use points to deform terrain

[Besjan]

• [ ] Create polygons from walls inside tile
• [ ] Set terrain point height to zero if not inside polygon: http://wiki.unity3d.com/index.php?title=PolyContainsPoint&_ga=2.169101537.1726076963.1584913096-402322108.1584913096

• [ ] Smooth terrain point around polygon, not tile boundary

• [x] Group boundary points per tile
• [x] Add tile intersection point
• [x] Group multiple boundary points

[Besjan]

Using Archimatix