{
  "_readme": [
    "Engine data for Total Annihilation. Everything the simulation knows lives here \u2014 adding a unit,",
    "building, weapon, terrain type, army or map theme is a JSON-only change.",
    "After editing, run `node tools/verifyTotalAnnihilation.js` \u2014 it cross-checks every id reference,",
    "frame index and closed key set in this file and will tell you exactly what broke.",
    "",
    "Sheet resolution: a unit/building's `sheetSlot` names a field on its ARMY (unitSheet or",
    "structureSheet), so one unit definition renders correctly for every army. That is what makes a",
    "third army a two-line change: add an `armies` entry pointing at two new sheets in",
    "data/totalannihilation-artwork.json.",
    "",
    "Units are drawn once and ROTATED at runtime \u2014 there are no per-facing frames. `turretFrame` is",
    "an optional second sprite that aims independently of the hull.",
    "",
    "Domains: a unit's `domain` is \"ground\" (the default) or \"air\". Air units ignore the nav grid,",
    "never collide with ground units, and while AIRBORNE can only be hit by weapons listing \"air\"",
    "in `targets` \u2014 so a roster with air units MUST keep some ground weapon anti-air capable or",
    "there is no answer to them. That protection comes from flying, not from having wings: a landed",
    "aircraft is an ordinary ground target that anything can shoot, and it cannot fire back.",
    "`domain` and the unit's `moveClass` have to agree: an air unit takes a move class flagged",
    "`\"air\": true`. Terrain passability comes from the move class COST TABLE, not from the terrain's",
    "own `blocksMove` \u2014 that is how `hover` crosses water without a per-terrain exception.",
    "",
    "Armor classes are the whole balance surface: every weapon lists a multiplier for EVERY class,",
    "so a roster change is a table edit rather than a code change. Two of them exist purely so a",
    "counter can be expressed at all \u2014 `air` (aircraft, separate from light/medium so a weapon can",
    "be lethal to planes without also being lethal to jeeps and tanks) and `fortification` (Laser",
    "Tower and Missile Launcher, separate from `structure` so a weapon can specialise in cracking",
    "defences without flattening generators). Adding a class means adding a key to all 12 weapons;",
    "compileRules refuses to start if one is missing, which is the point."
  ],
  "version": 1,
  "constants": {
    "tickHz": 20,
    "tileSize": 64,
    "unitCapPerArmy": 100,
    "projectileCap": 400,
    "startEnergy": 1000,
    "startMass": 1000,
    "baseEnergyCap": 500,
    "baseMassCap": 500,
    "pathBudgetPerTick": 8,
    "retargetPeriodTicks": 10,
    "engageHoldFraction": 0.45,
    "siegeHoldFraction": 0.95,
    "separationStiffness": 0.55,
    "shoveAfterSec": 0.6,
    "stuckGiveUpSec": 3.0,
    "stuckRepathSec": 1.0,
    "arriveSlackPx": 12,
    "friendlyFire": false,
    "buildPowerNominal": 100,
    "eliminateWhenUnrecoverable": true,
    "victoryDefault": "commander"
  },
  "victoryModes": [
    {
      "id": "commander",
      "label": "COMMANDER KILL",
      "desc": "Destroy the enemy Commander and the war is over."
    },
    {
      "id": "annihilation",
      "label": "ANNIHILATION",
      "desc": "Fight on after a Commander falls — an army dies when it can no longer build."
    }
  ],
  "sizeClasses": {
    "small": {
      "radius": 16,
      "footprint": 1,
      "mass": 1
    },
    "medium": {
      "radius": 26,
      "footprint": 1,
      "mass": 4
    },
    "large": {
      "radius": 44,
      "footprint": 2,
      "mass": 16
    }
  },
  "armorClasses": [
    "infantry",
    "light",
    "medium",
    "heavy",
    "structure",
    "fortification",
    "air"
  ],
  "moveClasses": {
    "foot": {
      "cost": {
        "ground": 1.0,
        "rough": 1.3,
        "road": 0.85,
        "metal": 1.0,
        "cliff": null,
        "water": null
      }
    },
    "tread": {
      "cost": {
        "ground": 1.0,
        "rough": 1.8,
        "road": 0.7,
        "metal": 1.0,
        "cliff": null,
        "water": null
      }
    },
    "wheel": {
      "cost": {
        "ground": 1.0,
        "rough": 2.4,
        "road": 0.6,
        "metal": 1.0,
        "cliff": null,
        "water": null
      }
    },
    "hover": {
      "cost": {
        "ground": 1.0,
        "rough": 1.1,
        "road": 0.9,
        "metal": 1.0,
        "cliff": null,
        "water": 1.0
      }
    },
    "air": {
      "air": true,
      "cost": {
        "ground": 1.0,
        "rough": 1.0,
        "road": 1.0,
        "metal": 1.0,
        "cliff": 1.0,
        "water": 1.0
      }
    }
  },
  "armies": [
    {
      "id": "arm",
      "name": "ARM",
      "color": "#4a90e2",
      "unitSheet": "arm-units",
      "structureSheet": "arm-structures"
    },
    {
      "id": "core",
      "name": "CORE",
      "color": "#e05a2f",
      "unitSheet": "core-units",
      "structureSheet": "core-structures"
    }
  ],
  "commanders": [
    {
      "id": "vance",
      "armyId": "arm",
      "opponentId": "ethel",
      "name": "Commander Ethel",
      "tagline": "Holds the line, and makes you pay for every metre of it.",
      "aiProfile": {
        "aggression": 0.45,
        "expansion": 0.65
      }
    },
    {
      "id": "klaxon",
      "armyId": "core",
      "opponentId": "klaxon",
      "name": "Unit KLAXON",
      "tagline": "Efficiency is a weapon. You are an inefficiency.",
      "aiProfile": {
        "aggression": 0.7,
        "expansion": 0.45
      }
    },
    {
      "id": "cybro",
      "armyId": "core",
      "opponentId": "cybro",
      "name": "Cy-Bro",
      "tagline": "Builds faster than you can knock it down.",
      "aiProfile": {
        "aggression": 0.35,
        "expansion": 0.85
      }
    },
    {
      "id": "nadia",
      "armyId": "arm",
      "opponentId": "nadia",
      "name": "Commander Nadia",
      "tagline": "Hits the flank while you watch the front.",
      "aiProfile": {
        "aggression": 0.8,
        "expansion": 0.4
      }
    }
  ],
  "terrain": [
    {
      "id": "ground",
      "ch": ".",
      "frame": 0,
      "buildable": true,
      "blocksMove": false,
      "elevation": 0
    },
    {
      "id": "rough",
      "ch": "r",
      "frame": 3,
      "buildable": true,
      "blocksMove": false,
      "elevation": 0
    },
    {
      "id": "road",
      "ch": "=",
      "frame": 8,
      "buildable": true,
      "blocksMove": false,
      "elevation": 0
    },
    {
      "id": "metal",
      "ch": "M",
      "frame": 7,
      "buildable": true,
      "blocksMove": false,
      "elevation": 0,
      "massMultiplier": 2.0
    },
    {
      "id": "cliff",
      "ch": "^",
      "frame": 4,
      "buildable": false,
      "blocksMove": true,
      "blocksFire": true,
      "elevation": 1
    },
    {
      "id": "water",
      "ch": "~",
      "frame": 5,
      "buildable": false,
      "blocksMove": true,
      "elevation": -1
    }
  ],
  "weapons": [
    {
      "id": "rifle",
      "name": "Assault Rifle",
      "kind": "hitscan",
      "damage": 9,
      "reload": 0.5,
      "burst": 3,
      "burstDelay": 0.06,
      "range": 200,
      "spread": 0.05,
      "targets": [
        "ground"
      ],
      "armorMul": {
        "infantry": 1.0,
        "light": 0.5,
        "medium": 0.25,
        "heavy": 0.15,
        "structure": 0.7,
        "fortification": 0.55,
        "air": 0.3
      },
      "fx": {
        "style": "tracer",
        "color": "#ffe6a0",
        "width": 1.5,
        "lifeMs": 70
      },
      "sound": "sfx-ta-machinegun"
    },
    {
      "id": "pintlegun",
      "name": "Pintle Gun",
      "kind": "hitscan",
      "damage": 9,
      "reload": 0.5,
      "burst": 3,
      "burstDelay": 0.06,
      "range": 200,
      "spread": 0.05,
      "targets": [
        "ground"
      ],
      "armorMul": {
        "infantry": 2.2,
        "light": 0.7,
        "medium": 0.3,
        "heavy": 0.15,
        "structure": 0.5,
        "fortification": 0.4,
        "air": 0.35
      },
      "fx": {
        "style": "tracer",
        "color": "#ffe6a0",
        "width": 1.5,
        "lifeMs": 70
      },
      "sound": "sfx-ta-50cal"
    },
    {
      "id": "sniperrifle",
      "name": "Marksman Rifle",
      "kind": "hitscan",
      "damage": 70,
      "reload": 2.2,
      "burst": 1,
      "range": 580,
      "spread": 0.0,
      "targets": [
        "ground"
      ],
      "armorMul": {
        "infantry": 3.2,
        "light": 0.35,
        "medium": 0.12,
        "heavy": 0.08,
        "structure": 0.08,
        "fortification": 0.08,
        "air": 0.15
      },
      "fx": {
        "style": "beam",
        "color": "#d8f0ff",
        "width": 2,
        "lifeMs": 160
      },
      "sound": "sfx-laser-zap"
    },
    {
      "id": "tankgun",
      "name": "120mm Cannon",
      "kind": "ballistic",
      "damage": 145,
      "reload": 2.0,
      "burst": 1,
      "range": 350,
      "speed": 700,
      "spread": 0.015,
      "leadTarget": true,
      "aoe": 40,
      "aoeFalloff": 0.15,
      "targets": [
        "ground"
      ],
      "armorMul": {
        "infantry": 1.3,
        "light": 1.15,
        "medium": 1.0,
        "heavy": 0.8,
        "structure": 1.2,
        "fortification": 1.1,
        "air": 1.0
      },
      "fx": {
        "style": "shell",
        "color": "#ffd27a",
        "width": 3,
        "muzzle": 18
      },
      "sound": "sfx-battle-tank"
    },
    {
      "id": "rocketpod",
      "name": "Rocket Pod",
      "kind": "guided",
      "damage": 48,
      "reload": 4.0,
      "burst": 2,
      "burstDelay": 0.25,
      "range": 440,
      "minRange": 110,
      "speed": 340,
      "turnRate": 2.2,
      "aoe": 48,
      "aoeFalloff": 0.15,
      "targets": [
        "ground",
        "air"
      ],
      "armorMul": {
        "infantry": 0.3,
        "light": 0.6,
        "medium": 1.0,
        "heavy": 1.4,
        "structure": 1.5,
        "fortification": 1.6,
        "air": 2.6
      },
      "fx": {
        "style": "rocket",
        "color": "#ff8844",
        "width": 2,
        "trail": true
      },
      "sound": "sfx-ta-rocket-1",
      "impactSound": "sfx-ta-rocket-2"
    },
    {
      "id": "shoulderrocket",
      "name": "Shoulder Rocket",
      "kind": "guided",
      "damage": 40,
      "reload": 2.2,
      "burst": 1,
      "range": 380,
      "minRange": 60,
      "speed": 260,
      "turnRate": 2.0,
      "aoe": 24,
      "aoeFalloff": 0.15,
      "targets": [
        "ground",
        "air"
      ],
      "armorMul": {
        "infantry": 0.3,
        "light": 0.9,
        "medium": 1.3,
        "heavy": 1.2,
        "structure": 1.2,
        "fortification": 1.9,
        "air": 2.8
      },
      "fx": {
        "style": "rocket",
        "color": "#ff9a5c",
        "width": 1.5,
        "trail": true
      },
      "sound": "sfx-ta-rocket-1",
      "impactSound": "sfx-ta-rocket-2"
    },
    {
      "id": "commanderlaser",
      "name": "Commander Laser",
      "kind": "hitscan",
      "damage": 38,
      "reload": 1.1,
      "burst": 1,
      "range": 260,
      "spread": 0.01,
      "targets": [
        "ground"
      ],
      "armorMul": {
        "infantry": 1.3,
        "light": 1.0,
        "medium": 0.8,
        "heavy": 0.6,
        "structure": 0.5,
        "fortification": 0.45,
        "air": 0.8
      },
      "fx": {
        "style": "beam",
        "color": "#9ff0c8",
        "width": 3,
        "lifeMs": 120
      },
      "sound": "sfx-laser-zap"
    },
    {
      "id": "dgun",
      "name": "D-Gun",
      "kind": "beam",
      "damage": 2000,
      "reload": 1.5,
      "burst": 1,
      "range": 220,
      "energyPerShot": 500,
      "targets": [
        "ground"
      ],
      "manual": true,
      "armorMul": {
        "infantry": 1,
        "light": 1,
        "medium": 1,
        "heavy": 1,
        "structure": 1,
        "fortification": 1,
        "air": 1
      },
      "fx": {
        "style": "dgun",
        "color": "#8ad4ff",
        "width": 9,
        "lifeMs": 260
      },
      "sound": "sfx-scifi-launch"
    },
    {
      "id": "towerlaser",
      "name": "Heavy Laser",
      "kind": "hitscan",
      "damage": 52,
      "reload": 0.4,
      "burst": 1,
      "range": 340,
      "spread": 0.01,
      "targets": [
        "ground"
      ],
      "armorMul": {
        "infantry": 1.4,
        "light": 1.2,
        "medium": 0.9,
        "heavy": 0.55,
        "structure": 0.4,
        "fortification": 0.35,
        "air": 1.0
      },
      "fx": {
        "style": "beam",
        "color": "#a8e8ff",
        "width": 4,
        "lifeMs": 140
      },
      "sound": "sfx-laser-zap"
    },
    {
      "id": "towermissile",
      "name": "Guided Missile",
      "kind": "guided",
      "damage": 135,
      "reload": 1.5,
      "burst": 1,
      "range": 620,
      "minRange": 180,
      "speed": 320,
      "turnRate": 2.0,
      "aoe": 56,
      "aoeFalloff": 0.15,
      "targets": [
        "ground",
        "air"
      ],
      "armorMul": {
        "infantry": 0.35,
        "light": 0.7,
        "medium": 1.1,
        "heavy": 1.5,
        "structure": 1.3,
        "fortification": 1.2,
        "air": 2.8
      },
      "fx": {
        "style": "rocket",
        "color": "#ffb15c",
        "width": 2.5,
        "trail": true
      },
      "sound": ["sfx-ta-rocket-1", "sfx-ta-rocket-2"]
    },
    {
      "id": "aacannon",
      "name": "Air-to-Air Cannon",
      "kind": "hitscan",
      "damage": 44,
      "reload": 1.6,
      "burst": 3,
      "burstDelay": 0.12,
      "range": 300,
      "spread": 0.02,
      "targets": ["air"],
      "armorMul": {
        "infantry": 1.0,
        "light": 1.0,
        "medium": 0.85,
        "heavy": 0.6,
        "structure": 0.2,
        "fortification": 0.2,
        "air": 1.0
      },
      "fx": {
        "style": "tracer",
        "color": "#ffe89a",
        "width": 2,
        "muzzle": 16,
        "lifeMs": 70
      },
      "sound": "sfx-ta-50cal"
    },
    {
      "id": "bombrack",
      "name": "Bomb Rack",
      "kind": "ballistic",
      "damage": 190,
      "reload": 6.0,
      "burst": 2,
      "burstDelay": 0.35,
      "range": 160,
      "speed": 240,
      "spread": 0.05,
      "aoe": 96,
      "aoeFalloff": 0.3,
      "targets": ["ground"],
      "armorMul": {
        "infantry": 1.1,
        "light": 1.0,
        "medium": 1.0,
        "heavy": 0.85,
        "structure": 1.6,
        "fortification": 1.5,
        "air": 1.0
      },
      "fx": {
        "style": "shell",
        "color": "#ffb15c",
        "width": 3,
        "muzzle": 8
      },
      "sound": "sfx-scifi-launch",
      "impactSound": "sfx-ta-nuclear"
    }
  ],
  "units": [
    {
      "id": "commander",
      "name": "Commander",
      "role": "builder",
      "isCommander": true,
      "size": "medium",
      "radius": 20,
      "hp": 7000,
      "selfHeal": {
        "fractionPerMinute": 0.33,
        "pauseAfterDamageSec": 30
      },
      "speed": 62,
      "turnRate": 3.5,
      "moveClass": "foot",
      "armorClass": "heavy",
      "sight": 420,
      "cost": {
        "energy": 0,
        "mass": 0
      },
      "buildTime": 0,
      "buildPower": 100,
      "buildRange": 200,
      "builds": [
        "energygen",
        "massgen",
        "barracks",
        "vehicleplant",
        "lasertower",
        "missilelauncher",
        "airfield",
        "radar"
      ],
      "produce": {
        "energy": 25,
        "mass": 3.0
      },
      "storage": {
        "energy": 1000,
        "mass": 1000
      },
      "weapons": [
        "commanderlaser",
        "dgun"
      ],
      "deathExplosion": {
        "radius": 280,
        "damage": 1200
      },
      "sheetSlot": "unitSheet",
      "frame": 0,
      "turretFrame": 1,
      "procShape": "commander",
      "icon": 0,
      "spritePx": 56
    },
    {
      "id": "infantry",
      "name": "Infantry",
      "role": "combat",
      "size": "small",
      "radius": 16,
      "hp": 260,
      "speed": 55,
      "turnRate": 6.0,
      "moveClass": "foot",
      "armorClass": "infantry",
      "sight": 260,
      "cost": {
        "energy": 120,
        "mass": 24
      },
      "buildTime": 2,
      "builtBy": [
        "barracks"
      ],
      "weapons": [
        "rifle"
      ],
      "sheetSlot": "unitSheet",
      "frame": 2,
      "procShape": "infantry",
      "icon": 1,
      "spritePx": 30,
      "moveSound": "sfx-march"
    },
    {
      "id": "sniper",
      "name": "Sniper",
      "role": "combat",
      "size": "small",
      "radius": 16,
      "hp": 130,
      "speed": 46,
      "turnRate": 5.0,
      "moveClass": "foot",
      "armorClass": "infantry",
      "sight": 500,
      "cost": {
        "energy": 260,
        "mass": 55
      },
      "buildTime": 6,
      "builtBy": [
        "barracks"
      ],
      "weapons": [
        "sniperrifle"
      ],
      "sheetSlot": "unitSheet",
      "frame": 3,
      "procShape": "sniper",
      "icon": 2,
      "spritePx": 30,
      "moveSound": "sfx-march"
    },
    {
      "id": "rockettrooper",
      "name": "Rocket Trooper",
      "role": "combat",
      "size": "small",
      "radius": 16,
      "hp": 150,
      "speed": 50,
      "turnRate": 5.5,
      "moveClass": "foot",
      "armorClass": "infantry",
      "sight": 280,
      "cost": {
        "energy": 220,
        "mass": 45
      },
      "buildTime": 5,
      "builtBy": [
        "barracks"
      ],
      "weapons": [
        "shoulderrocket"
      ],
      "sheetSlot": "unitSheet",
      "frame": 10,
      "procShape": "rocketTrooper",
      "icon": 6,
      "spritePx": 30,
      "moveSound": "sfx-march"
    },
    {
      "id": "jeep",
      "name": "Jeep",
      "role": "scout",
      "size": "small",
      "radius": 20,
      "hp": 480,
      "speed": 175,
      "turnRate": 3.4,
      "moveClass": "wheel",
      "armorClass": "light",
      "sight": 520,
      "cost": {
        "energy": 320,
        "mass": 70
      },
      "buildTime": 8,
      "builtBy": [
        "vehicleplant"
      ],
      "weapons": [
        "pintlegun"
      ],
      "sheetSlot": "unitSheet",
      "frame": 4,
      "turretFrame": 5,
      "procShape": "jeep",
      "icon": 3,
      "spritePx": 40,
      "moveSound": "sfx-engine-medium"
    },
    {
      "id": "tank",
      "name": "Tank",
      "role": "combat",
      "size": "medium",
      "radius": 26,
      "hp": 1900,
      "speed": 90,
      "turnRate": 2.2,
      "moveClass": "tread",
      "armorClass": "medium",
      "sight": 300,
      "cost": {
        "energy": 700,
        "mass": 180
      },
      "buildTime": 20,
      "builtBy": [
        "vehicleplant"
      ],
      "weapons": [
        "tankgun"
      ],
      "sheetSlot": "unitSheet",
      "frame": 6,
      "turretFrame": 7,
      "procShape": "tank",
      "icon": 4,
      "spritePx": 54,
      "moveSound": "sfx-engine-heavy"
    },
    {
      "id": "rockettank",
      "name": "Rocket Tank",
      "role": "artillery",
      "size": "medium",
      "radius": 28,
      "hp": 1050,
      "speed": 75,
      "turnRate": 1.8,
      "moveClass": "tread",
      "armorClass": "medium",
      "sight": 320,
      "cost": {
        "energy": 1100,
        "mass": 300
      },
      "buildTime": 28,
      "builtBy": [
        "vehicleplant"
      ],
      "weapons": [
        "rocketpod"
      ],
      "sheetSlot": "unitSheet",
      "frame": 8,
      "turretFrame": 9,
      "procShape": "rockettank",
      "icon": 5,
      "spritePx": 56,
      "moveSound": "sfx-engine-heavy"
    },
    {
      "id": "constructor",
      "name": "Construction Vehicle",
      "role": "builder",
      "size": "medium",
      "radius": 24,
      "hp": 700,
      "speed": 85,
      "turnRate": 2.4,
      "moveClass": "tread",
      "armorClass": "light",
      "sight": 340,
      "cost": {
        "energy": 500,
        "mass": 140
      },
      "buildTime": 14,
      "builtBy": [
        "vehicleplant"
      ],
      "buildPower": 90,
      "buildRange": 180,
      "builds": [
        "energygen",
        "massgen",
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