crop Spawner

What was built

• CropSpawner is a Paper 1.21.10 plugin that adds logical crop spawner blocks (WHEAT, CARROT, POTATO, BEETROOT, SUGAR_CANE) with persistent virtual storage and stacking up to a configurable cap.
• Production runs on the main thread; output = base items per crop * level multiplier * stack size, on a per-crop interval. Output pauses while chunks are unloaded.
• Spawner blocks are marked via PersistentDataContainer and saved in plugins/CropSpawner/data.yml so inventory, stack, and levels survive restarts.
• If a chest/trapped chest or hopper is directly underneath, items auto-insert; otherwise they go into the spawner’s internal storage (capped by config) and overflow drops at the block.

Using the plugin

• Place a provided spawner item (Material: spawner). Right-click the placed block to open the GUI; right-click with another matching spawner item stacks it (level must match).
• GUI (27 slots): slot 10 = level info, 12 = stack info, 14 = production rate, 22 = stored item withdraw (left-click: 64 items, shift-click: all). Other slots are locked filler to prevent dupes.
• Commands: /cropspawner give <player> <type> <amount> [level], /cropspawner open (target block within 6 blocks), /cropspawner upgrade (target block), /cropspawner reload. Permissions: cropspawner.use for interaction, cropspawner.admin for admin commands.

Configuration

• config.yml controls per-crop items and interval-seconds, level-multipliers, limits.max-stack-per-block, limits.max-spawners-per-chunk, and limits.max-internal-storage.
• messages.yml holds all player-facing text with color codes; reload via /cropspawner reload.

Notes and considerations

• Breaking a spawner drops its stack as items and any stored crops. Chunk limits count total stacked spawners, not just block count.
• Chunk load/unload events reset production timers so farms do not fast-forward while offline.
• No economy costs are included for upgrades; leveling is unrestricted aside from the configured max multiplier entries.