Should be fairly trivial in comparison to merging.

1. Upload a normal map in the web ui
2. Extract map exchange string and create a gridworld based on that
3. Prepopulate the gridworld using the uploaded map as a base. Delete all chunks outside of the normal grid square area.

A major challenge I forsee is figuring out how much of the map to pregenerate. I suppose just picking all squares with inserters, belts or rails should do pretty well. Another option is simply to ask for a number squared.

• Automatically stop inactive servers
• Manual migrations from web interface
• Track approximate instance resource utilization
• Automatic migrations depending on server laod

These are features I want working before 1.0 release:

• One click gridworld creation
• Gridworld minimap
• - render entities on map
• #14
• Dynamically create servers as players move about
• Show players on minimap
• #13
• #7

`16.644 Error MainLoop.cpp:1404: Exception at tick 21771: The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_player_joined_game (ID 45)
...on/building_restrictions/set_player_permission_group.lua:12: attempt to index local 'faction' (a nil value)
stack traceback:
...on/building_restrictions/set_player_permission_group.lua:12: in function 'set_player_permission_group'
modules/gridworld/gridworld.lua:90: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>
16.644 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_player_joined_game (ID 45)
...on/building_restrictions/set_player_permission_group.lua:12: attempt to index local 'faction' (a nil value)
stack traceback:
...on/building_restrictions/set_player_permission_group.lua:12: in function 'set_player_permission_group'
modules/gridworld/gridworld.lua:90: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>"
16.644 Info ServerMultiplayerManager.cpp:814: updateTick(21771) changing state from(InGame) to(Failed)
16.659 Info NetworkInputListener.cpp:46: Refusing Input Action [0 65535 ServerCommand] because multiplayer control is not ready
16.659 Quitting: multiplayer error.
[error] Error handling ipc-inventory_sync_acquire:
Error: Connection closed
at EventEmitter.onEnd (/home/vm/clusterio/node_modules/rcon-client/lib/rcon.js:113:45)
at EventEmitter.emit (node:events:530:35)
at Socket. (/home/vm/clusterio/node_modules/rcon-client/lib/rcon.js:58:26)
at Socket.emit (node:events:518:28)
at TCP. (node:net:337:12)
16.949 Info ServerMultiplayerManager.cpp:154: Quitting multiplayer connection.
16.949 Info ServerMultiplayerManager.cpp:814: updateTick(4294967295) changing state from(Failed) to(Closed)
16.950 Info UDPSocket.cpp:233: Closing socket
16.950 Info UDPSocket.cpp:263: Socket closed
16.950 Info UDPSocket.cpp:233: Closing socket
17.110 Info UDPSocket.cpp:233: Closing socket
17.110 Info UDPSocket.cpp:263: Socket closed
17.113 Goodbye
[error] Factorio server unexpectedly shut down with code 255`

After instance crash edge transports that were created after the save are missing.

Where do they get their map color from?

Currently the colors for map data is sent as hexadecimal strings where 8 bytes are used to represent color: AABBCCDD for rgba. Lua and factorio supports putting binary data in strings using string.char(0-255) which allows us to compress it to 4 bytes.

For additional compression we could also take advantage of the actual color palette in use being far more restricted by finding all relevant map colors, transferring them to the controller once and then using a single byte to index the color. This would give us a nice and compact 1 byte per tile for dump_mapview.

Similar reductions can also be done to the position coordinates. Currently the position is sent as a string, but sending long decimal numbers as strings takes a lot of space. The position could be sent losslessly as 2x8 bytes or truncated as 2x4 bytes, bringing us to a worst case of 9 bytes per tile before compression.

No idea why, maybe because I added admin stuff?

Creating a new Gridworld and specifying the name does not seem to do anything.

Additionally if there is support for multiple Gridworld's the map page can only display the first one created.

Button in the web interface should:

1. Create a new instance
2. Start each instance one by one and copy all entities, tiles and resources over to the newly created instance

• Create and manage factions
• Faction building permissions on servers
• Fix broken server claiming logic
• Faction combat (production required to maintain/defeat claims)

• Port 10000 is hard coded.
• Removing the port in the instance config causes this to happen:

After creating and switch to my own force I was able to join without crashing an instance.. I imagine this is the result but should have a nil check anyway possibly.

`766.830 Error MainLoop.cpp:1404: Exception at tick 45582: The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_gui_click (ID 1)
...les/gridworld/faction/gui/faction_server_status/draw.lua:11: attempt to index local 'player_faction' (a nil value)
stack traceback:
...les/gridworld/faction/gui/faction_server_status/draw.lua:11: in function 'draw'
modules/gridworld/gui/menu/events.lua:10: in function '?'
...urrently-playing/modules/gridworld/util/run_function.lua:3: in function 'run_function'
modules/gridworld/gui/events.lua:11: in function 'on_gui_click'
modules/gridworld/gridworld.lua:187: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>
766.831 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_gui_click (ID 1)
...les/gridworld/faction/gui/faction_server_status/draw.lua:11: attempt to index local 'player_faction' (a nil value)
stack traceback:
...les/gridworld/faction/gui/faction_server_status/draw.lua:11: in function 'draw'
modules/gridworld/gui/menu/events.lua:10: in function '?'
...urrently-playing/modules/gridworld/util/run_function.lua:3: in function 'run_function'
modules/gridworld/gui/events.lua:11: in function 'on_gui_click'
modules/gridworld/gridworld.lua:187: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>"`

This issue is pretty obvious.

After the migration to alpha 17 player positions no longer show on the minimap. This would be nice to have back.

Connecting directly to an instance via direct connect bypassing the lobby causes an instance crash.

`344.917 Error MainLoop.cpp:1404: Exception at tick 32075: The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_player_joined_game (ID 45)
...on/building_restrictions/set_player_permission_group.lua:12: attempt to index local 'faction' (a nil value)
stack traceback:
...on/building_restrictions/set_player_permission_group.lua:12: in function 'set_player_permission_group'
modules/gridworld/gridworld.lua:90: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>
344.917 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_player_joined_game (ID 45)
...on/building_restrictions/set_player_permission_group.lua:12: attempt to index local 'faction' (a nil value)
stack traceback:
...on/building_restrictions/set_player_permission_group.lua:12: in function 'set_player_permission_group'
modules/gridworld/gridworld.lua:90: in function 'handler'
core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>"
344.917 Info ServerMultiplayerManager.cpp:814: updateTick(32075) changing state from(InGame) to(Failed)
344.932 Info NetworkInputListener.cpp:46: Refusing Input Action [0 65535 ServerCommand] because multiplayer control is not ready
344.932 Quitting: multiplayer error.
[error] Error handling ipc-inventory_sync_acquire:
Error: Connection closed
at EventEmitter.onEnd (/home/vm/clusterio/node_modules/rcon-client/lib/rcon.js:113:45)
at EventEmitter.emit (node:events:530:35)
at Socket. (/home/vm/clusterio/node_modules/rcon-client/lib/rcon.js:58:26)
at Socket.emit (node:events:518:28)
at TCP. (node:net:337:12)
345.219 Info ServerMultiplayerManager.cpp:154: Quitting multiplayer connection.
345.220 Info ServerMultiplayerManager.cpp:814: updateTick(4294967295) changing state from(Failed) to(Closed)
345.221 Info UDPSocket.cpp:233: Closing socket
345.221 Info UDPSocket.cpp:263: Socket closed
345.221 Info UDPSocket.cpp:233: Closing socket
345.316 Info UDPSocket.cpp:233: Closing socket
345.316 Info UDPSocket.cpp:263: Socket closed
345.319 Goodbye
[error] Factorio server unexpectedly shut down with code 255`

Restart of either the old instance, the controller or the host (which includes the instance I guess) fixes the issue.

It only happens on newly created instances.

Linked to clusterio/edge_transports#7