====== NPC Supply Chains ======

CoalGov NPCs use Citizens and are managed with:

  /cgnpc

===== Farm-To-Market Example =====

Select a polygon around the farm with ''/claim wand'', then create an NPC zone:

  /cgnpc zone create farm

Create workers and a trader in that zone:

  /cgnpc create worker Farmer farm
  /cgnpc create worker Baker farm
  /cgnpc create trader Marketman farm

The default supply chain is:

  * Farmer scans the farm zone for mature WHEAT, CARROTS, POTATOES, and BEETROOTS.
  * Farmer walks to mature crops, harvests drops into NPC inventory, and replants if it has the seed or crop item.
  * Baker pulls WHEAT from same-zone NPC inventories.
  * Baker consumes 3 WHEAT to produce 2 BREAD.
  * Workers keep a reserve and move surplus output to same-zone traders.
  * Players can haggle with traders for stocked goods.

Example player trade:

  /cgnpc list
  /cgnpc haggle <traderId> buy BREAD 8 8

===== Configuration =====

Worker roles are matched by NPC name under ''npc.worker.roles''. For example, an NPC named ''Farmer Joe'' uses the ''farmer'' role.

  npc:
    worker:
      tick_interval_seconds: 20
      roles:
        farmer:
          behavior: FARM
          output_material: WHEAT
          output_amount: 4
          crops:
            - WHEAT
            - CARROTS
            - POTATOES
            - BEETROOTS
          replant: true
        baker:
          behavior: CRAFT
          output_material: BREAD
          output_amount: 2
          inputs:
            WHEAT: 3
      farm:
        action_distance: 3.0
        max_scan_blocks: 512
    supply_chain:
      max_transfer_per_tick: 64
      source_reserve: 16
      worker_output_reserve: 16
      traders_accept_outputs: true
      trader_restock_target: 256

Admins can seed inventories with:

  /cgnpc stock <id> <material> <amount>

and fund trader purchases with:

  /cgnpc funds <id> <amount>