{
  "_comment": "Zone plan for Phase 3 (model approved by Adrian 2026-10-29; levels are placeholders, see docs/balance.md). tools/zone_layout.py assigns each surface cell of the island to the first zone whose rule matches, in this order, and renders build/zone-map.png. Rules: 'within' = distance from 0,0 in blocks; 'biomes' = cells of these biomes, clusters smaller than min_cells dropped, plus 'absorb' = cells of other biomes within that many blocks of the cluster; 'region' = what is left, by half-plane (x/z bounds in blocks); 'water' = sea cells of these biomes. Biomes in 'inherit' (rivers) take the zone of the land around them. Cave zones follow the cave biome everywhere under the island and are not drawn. 'lines' = how many evolution lines tools/zone_spawns.py aims to give the zone (scaled to the lines available); 'species' pins a line to a zone by hand. 'guardian': the zone's Alpha guardian (tools/zone_spawns.py picks the strongest Pokémon spawning in the zone unless 'species' is given, at the band's top level + 5) and its drops, which help with the next zone; it stands at the zone's sample point and returns guardian_respawn_hours after it is beaten (Adrian, 2026-10-29: fixed spots, 5 hours).",
  "min_cells": 6,
  "inherit": ["minecraft:river"],
  "guardian_respawn_hours": 5,
  "species": {"durant": "basalt", "torkoal": "basalt", "heatmor": "basalt"},
  "zones": [
    {
      "id": "button_isle", "guardian": {"drops": [["cobblemon:poke_ball", 10], ["cobblemon:potion", 4]]}, "lines": 20, "name": "Button Isle", "levels": [2, 10], "hazard": "none", "color": "#a6d96a",
      "rule": {"within": 300}
    },
    {
      "id": "frostpeak", "guardian": {"drops": [["cobblemon:icy_rock", 3], ["cobblemon:exp_candy_l", 2]]}, "lines": 30, "name": "Frostpeak Range", "levels": [40, 55], "hazard": "cold (Cold Sweat): needs wool insulation", "color": "#f2f7ff",
      "rule": {"biomes": ["minecraft:jagged_peaks"], "absorb": {"minecraft:windswept_hills": 96, "minecraft:cherry_grove": 144}}
    },
    {
      "id": "sunscorch", "guardian": {"drops": [["cobblemon:heat_rock", 3], ["cobblemon:exp_candy_l", 2]]}, "lines": 25, "name": "Sunscorch", "levels": [30, 45], "hazard": "heat (Cold Sweat): needs heat insulation", "color": "#f4a443",
      "rule": {"biomes": ["minecraft:desert", "minecraft:badlands"]}
    },
    {
      "id": "mire", "guardian": {"drops": [["cobblemon:icy_rock", 3], ["cobblemon:super_potion", 4]]}, "lines": 25, "name": "Mangrove Mire", "levels": [25, 38], "hazard": "poison area effect (companion mod)", "color": "#3cb5a0",
      "rule": {"biomes": ["minecraft:mangrove_swamp"]}
    },
    {
      "id": "jungle", "guardian": {"drops": [["cobblemon:pecha_berry", 8], ["cobblemon:exp_candy_m", 2]]}, "lines": 30, "name": "Verdant Jungle", "levels": [18, 30], "hazard": "none (warm and humid, below Cold Sweat's damage)", "color": "#5a8f1e",
      "rule": {"biomes": ["minecraft:jungle"]}
    },
    {
      "id": "highlands", "guardian": {"drops": [["cobblemon:icy_rock", 3], ["cobblemon:super_potion", 4]]}, "lines": 35, "name": "Highland Meadows", "levels": [25, 35], "hazard": "none", "color": "#e3b7d6",
      "rule": {"region": {"z_max": 0, "x_min": -250}}
    },
    {
      "id": "westmarch", "guardian": {"drops": [["cobblemon:pecha_berry", 8], ["cobblemon:exp_candy_m", 2]]}, "lines": 35, "name": "Westmarch", "levels": [15, 25], "hazard": "none", "color": "#2f8f4e",
      "rule": {"region": {"z_max": 0, "x_max": -250}}
    },
    {
      "id": "southwold", "guardian": {"drops": [["cobblemon:great_ball", 6], ["cobblemon:exp_candy_s", 4]]}, "lines": 35, "name": "Southwold", "levels": [8, 18], "hazard": "none", "color": "#7cc576",
      "rule": {"region": {"z_min": 0}}
    },
    {
      "id": "shallows", "lines": 30, "name": "Shallows", "levels": [5, 20], "hazard": "none", "color": "#5aa9e6",
      "rule": {"water": ["minecraft:river", "minecraft:beach", "minecraft:ocean", "minecraft:lukewarm_ocean", "minecraft:warm_ocean"]}
    },
    {
      "id": "deep_sea", "guardian": {"drops": [["cobblemon:mystic_water", 1], ["cobblemon:exp_candy_m", 3]]}, "lines": 20, "name": "Deep Sea", "levels": [30, 50], "hazard": "none", "color": "#1f4e8c",
      "rule": {"water": ["minecraft:deep_ocean", "minecraft:deep_lukewarm_ocean"]}
    }
  ],
  "caves": [
    {"id": "lush_caves", "lines": 20, "name": "Lush Caves", "biome": "minecraft:lush_caves", "levels": [12, 28], "hazard": "none"},
    {"id": "dripstone", "lines": 20, "name": "Dripstone Depths", "biome": "minecraft:dripstone_caves", "levels": [22, 38], "hazard": "none"},
    {"id": "deep_dark", "guardian": {"drops": [["cobblemon:icy_rock", 3], ["cobblemon:exp_candy_l", 2]]}, "lines": 20, "name": "Deep Dark", "biome": "minecraft:deep_dark", "levels": [45, 60], "hazard": "darkness (vanilla sculk; no Warden)"},
    {"id": "basalt", "lines": 15, "name": "Basalt Furnace", "biome": "minecraft:basalt_deltas", "levels": [55, 70], "hazard": "heat (Cold Sweat)"}
  ]
}