What is Jigsaw Game? 

Jigsaw game is a social game in S&box, where you build a giant jigsaw puzzle together with your friends.

Input an image URL, and the game will generate a puzzle using that image. The system works on any map as long as the map has a Navmesh (which should be all maps) Certain maps are better suited for the gamemode, as there needs to be a relatively big flat area for players to put the finished puzzle in.

facepunch.flatgrass will be prioritized by me. I will make sure that it provides a good base experience for Jigsaw Game.

facepunch.construct and facepunch.square will be used as test maps to ensure Jigsaw Game provides a good experience on these maps.

 Adding support for Jigsaw Game 

You don't need to do anything for your map to support Jigsaw Game. However if your map doesn't have an open, flat area for players to put their connected pieces, there are things you can do to make the game more playable.

 JigsawController 

Adding the JigsawController Hammer entity to your map will let you customize how the gamemode works on your map.

Puzzle Piece Scale - Change the scale of the puzzle pieces on your map. Standard puzzle pieces are 32 units, but you can lower it to 16 units

to both make the puzzle pieces fit better in tight spaces, and to reduce the flat area you need for players to lay the puzzle.

 Piece Spawner 

You can add piece spawners around your map to customize where puzzle pieces will spawn. Each piece spawner will spawn at most one puzzle piece. When all piece spawners have been populated the system will fall back to using the NavMesh of your map.