Used to manage map downloads during game setup. This is classified as Packet CLS 1.

Key Behavior

• Players do not always download the map from the host. The host can request that other players (who already have the map) send it instead.
• Data is typically sent in 128-byte blocks, though 256-byte blocks generally work without issue.

Event Breakdown

Event 0x00 [Client → Host]:

• Informs the host whether the client has the map.
• The File Position indicates where to start sending from. If the player already has the map, this should match the total file length.

Event 0x01 [Host → Client]:

• Asks a player if they have the specified map.
• The player should respond with Event 0x00.

Event 0x02 [Host → Client]:

• Tells the receiving player to send the map to another player.

Event 0x03 [Host → Client]:

• Unclear purpose. Observed when a player sending a map to another player finishes sending the map, and when the game is starting.

Event 0x04 [Client → Client]:

• Used to send a map block to another player.
• The receiver must verify the block by replying with Event 0x05.
• Any breaks in the UDP stream should be managed with standard resend requests.

Event 0x05 [Client → Client]:

• Acknowledges receipt of the map block and confirms the current position.
• Sent in response to Event 0x04.