To Do

Anything marked with //TODO in the source code (mostly cleanup or stuff to do when support for something else has been added) (just grep for that string)
Documentation

Things with partial support, but needs to be completed. OR Things with a high priority

Create a TileBHandler when one is placed.
More [Item|Mount|NPC|Projectile|Tile|Game]Behaviour hooks
Player, WorldGen, UI, Netplay, ... hooks
- Player/UI/... drawing layers?
- WorldGen tasks?
Tile/Wall drop items
Finish Town NPC support (spawn, chat, display names, shop etc) (integrate with custom UI support later on?)
Mod enabling/disabling (either support it or remove it altogether)
- At least display which mods are loaded (+ info? mod options (when supported)?)
- Mod sets (?)
Exception UI page (use UI API when support has been added?)
Steam cloud support for player & world .prism files

Things that should be supported in the initial (non-prerelease) release

Custom NPC spawning
- - global NpcBehaviour spawning hooks
Custom UI (both game menu & in-game) support
Netplay support
- Netplay API (custom messages etc)
- Send mods to sync (-> cross-platform problems?) or check loaded mods & load order, to avoid conflicts?

Details, not that important, but should be implemented nontheless (but not necessarily in the first release)

Custom prefixes
Custom gores
Custom dusts
Custom quest items (i.e. register as quest item for Angler/Dye Trader/Custom Town NPC, items can be marked as Quest Item already, but it has no effect.)
Custom fishing items
- Custom items in crates
Custom fishing poles (if not a combination of item useStyle/channel + projectile aiStyle + [item|projectile] fishing power)
Custom yoyos (see above)
Custom minecart track parts (see above, or simple TileBehaviour stuff)
Custom dyes
Custom hair dyes
Minimap-related tile stuff (tile/wall colours, mouseover text)
Chest support
Sign support (TileDef.Subtypes.IsSign exists, but I don't know if that's enough)
Wiring support
Chain (grappling hook etc) & laser support

Things meant to be done in a future release

Biome API
- Integrate with BGM API?
- Integrate with NPC spawning API?
Custom invasions & wave event (e.g. pumpkin moon) support: messages, progress bar, etc.
Custom achievements (~~not synced with Steam, obviously~~ could be put on the Steam Cloud, but they won't be visible as achievements in Steam)
- Custom achievement conditions
~~Custom TileEntities~~ TileEntities are used to contain TileBehaviours.
Custom options
- Steam Could support?
Nicer NPC drop table API
Nicer NPC spawning API
Custom Item UseStyles
Custom Item HoldStyles

Rough ideas

Custom injection support (???)
- Would require checking mods for injections, etc...

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