Phase 6: Pokémon machines (five cores, shells as data)

Adrian (2026-10-31): a Large Furnace where a Fire Pokémon heats real
furnaces (hoppers in and out), our own Electric generator, no upkeep;
then a drop synthesizer (FE into full drop rolls, looting tiers), a
sacrifice altar (level tiers, rare candies only from Lv 80) and a
rebirth chamber (Lv 100 -> shiny Lv 1 first stage, three perfect IVs,
moves kept, Ability Patch so the hidden ability is optional).

- machine/: data-driven 3x3x3 shells (window spots for glass, free
  spot under the core), checked in four rotations; the Pokémon walks in
  from the party and lives in the core; breaking core or shell sends it
  home (party, else PC, offline too); a real Cobblemon entity copy is
  shown in the chamber (no AI, invulnerable, uncatchable, never saved).
- Heat Core keeps vanilla furnaces lit and faster; Dynamo Core makes
  and pushes FE; Synthesis Core takes FE and rolls drops into a hopper-
  extractable buffer; Altar Core sacrifices on a confirmed sneak-use;
  Rebirth Core runs on server time.
- Recipes, casing tags, block loot, textures (tools/machine_assets.py),
  models, blockstates, names.
- Self-tests: in/out, refusal, shell and core breaks (PC when full),
  chunk unload, server restart, and each machine's work.
- Docs: design, balance table, Phase 6 checklist; Phase 5 approved.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/balance.md

@@ -29,6 +29,13 @@ Every tunable lives in a config file or in this table. **Placeholder** means gue
 | Mire poison | Poison I for 7 s, renewed every 5 s while in the Mire without Mire Waders | Decided (Adrian, 2026-10-30) | `datapacks/core/data/cobblesurvival/zone_hazards/mire.json` | Vanilla Poison stops at half a heart |
 | Field moves (Cobblemon HMs) | mod defaults: all 39 abilities on, no level minimum, no fullness or friendship cost; Rock Smash breaks up to 32 connected ore blocks with no cooldown | Placeholder | `config/cobblemon_hms.json` (generated by the mod; the pack ships none yet) | Rock Smash mines any ore, whatever pickaxe the player has. HMs' `minLevel` is the player's XP level, not the Pokémon's |
 | Breeding (Cobbreeding) | mod defaults: an egg every 8,000–14,000 ticks per breeding pasture, hatch multiplier 1.0 (about 10 min for 20 egg cycles), Masuda shiny boost ×4, no random eggs from two Dittos, no gate | Placeholder | `config/cobbreeding/main.json` (written by the mod; the pack ships none) | Adrian, 2026-10-31: breeding without a gate |
+| Machine shells | 3×3×3, core in a wall, chamber in the centre; casing: Heat bricks/mud bricks/deepslate bricks; Dynamo copper blocks; Synthesis iron/gold/diamond/netherite blocks; Altar obsidian/crying obsidian/blackstone/polished blackstone bricks; Rebirth amethyst/quartz/calcite; glass allowed at the window spots | Placeholder | `datapacks/core/data/cobblesurvival/machines/*.json`, `tags/block/*_casing.json` | Adrian, 2026-10-31 (Phase 6) |
+| Core recipes | Heat: 4 bricks, 4 iron ingots, blast furnace; Dynamo: 4 copper blocks, 4 redstone, thunder stone; Synthesis: 4 iron blocks, 2 redstone blocks, 2 hoppers, crafter; Altar: 4 obsidian, 4 gold blocks, echo shard; Rebirth: 4 amethyst blocks, 4 diamonds, shiny stone | Placeholder | `datapacks/core/data/cobblesurvival/recipe/*_core.json` | |
+| Large Furnace | furnaces heated: 1 + level/15 (max 8); cooking speed 1 + 0.04 × level + 0.01 × Special Attack (e.g. Lv 50, SpA 70: 3.7×); no fuel | Placeholder | `machines/heat_core.json` | |
+| Generator | 50 FE/t per level × (1 + 0.005 × Special Attack) (Lv 30, SpA 50: 1,875 FE/t); stores 200,000 FE, pushes up to 16,000 FE/t | Placeholder | `machines/dynamo_core.json` | After Poke Power's 50 FE per level |
+| Drop Synthesizer | 2,000,000 FE per drop roll, takes up to 32,000 FE/t (one roll a minute at most), stores 4,000,000 FE; looting by casing tier: iron 0, gold I, diamond II, netherite III (+0–1 per drop per level; 25 % per level for a second roll); 9 output stacks | Placeholder | `machines/synthesis_core.json` | |
+| Sacrifice Altar | from Lv 20: 3 Exp. Candy S; 35: 3 M; 50: 3 L; 65: 2 XL + Ability Capsule; 80: 3 rare candies + 2 XL; 90: 5 rare candies + Ability Patch; 100: 8 rare candies + Ability Patch + nether star; Lv 100 Dragon type: + dragon egg; confirm within 5 s | Placeholder | `machines/altar_core.json` | Rare candies above the highest natural level (Lv 75 guardians) |
+| Rebirth Chamber | 144,000 ticks (2 hours of server time); 3 IVs raised to 31; an Ability Patch comes with it | Placeholder | `machines/rebirth_core.json` | |
 | Level pressure | full experience up to 5 levels above the zone's band, then 10 % less per level, at least 10 % (Exp. Candy and commands exempt) | Decided (Adrian, 2026-10-30) | `world/zones.json` → `level_pressure` | E.g. on Button Isle (up to Lv 10): Lv 15 full, Lv 20 half, Lv 24+ a tenth |
 | Strong flyer | ridable through the air with top speed ≥ 60 or top stamina ≥ 85 (Cobblemon ride stats) | Decided (Adrian, 2026-10-30) | `tools/zone_spawns.py` (`STRONG_FLYER_*`) | 29 species |
 | High zone for strong flyers | band starts at Lv 30 or more (Sunscorch, Frostpeak, Deep Sea, Deep Dark, Basalt Furnace) | Decided (Adrian, 2026-10-30) | `tools/zone_spawns.py` (`HIGH_ZONE_LEVEL`) | |