[
  {
    "building": "barracks",
    "level": 1,
    "build": {
      "barracks": {
        "sword": 10,
        "spear": 20
      }
    },
    "farm": {
      "spear": 20
    }
  },
  {
    "building": "barracks",
    "level": 3,
    "build": {
      "barracks": {
        "sword": 20,
        "spear": 60
      }
    },
    "farm": [
        {"spear": 30, "knight": 1},
        {"spear": 30},
        {"spear": 15, "sword": 20}
    ]
  },
  {
    "building": "smith",
    "level": 3,
     "upgrades": {
        "sword": 1,
        "axe": 1
    },
    "build": {
      "barracks": {
        "spear": 60,
        "sword": 30,
        "axe": 30
      }
    },
    "farm": [
        {"axe": 15},
        {"spear": 30}
    ]
  },
  {
    "building": "stable",
    "level": 1,
    "upgrades": {
        "spy": 1
    },
    "build": {
      "barracks": {
        "spear": 100,
        "sword": 50,
        "axe": 100
      }
    },
    "stable": {
      "spy": 10
    },
    "farm": [
        {"axe": 15},
        {"spear": 30}
    ]
  },
  {
    "building": "stable",
    "level": 3,
    "upgrades": {
        "sword": 2,
        "axe": 2,
        "light": 1,
        "spear": 3,
        "archer": 1
    },
    "build": {
      "barracks": {
        "spear": 150,
        "sword": 50,
        "axe": 100
      },
      "stable": {
        "spy": 15,
        "light": 20
      }
    },
    "farm": [
        {"spear": 50},
        {"light": 5},
        {"axe": 15},
        {"spear": 30}
    ]
  },
  {
    "building": "barracks",
    "level": 8,
    "build": {
      "barracks": {
        "spear": 200,
        "sword": 100,
        "axe": 250,
        "archer": 50
      },
      "stable": {
        "spy": 30,
        "light": 75
      }
    },
    "farm": [
        {"light": 5}
    ]
  },
  {
    "building": "stable",
    "level": 6,
    "upgrades": {
        "sword": 3,
        "axe": 3,
        "light": 3,
        "spear": 4
    },
    "build": {
      "barracks": {
        "spear": 500,
        "sword": 300,
        "axe": 500,
        "archer": 100
      },
      "stable": {
        "spy": 50,
        "light": 100
      }
    },
    "farm": [
        {"light": 5}
    ]
  },
  {
    "building": "barracks",
    "level": 12,
    "upgrades": {
        "sword": 10,
        "axe": 10,
        "light": 10,
        "spear": 10,
        "archer": 10
    },
    "build": {
      "barracks": {
        "spear": 5000,
        "sword": 3500,
        "axe": 2500,
        "archer": 1000
      },
      "stable": {
        "spy": 1000,
        "light": 1000
      }
    },
    "farm": [
        {"light": 10}
    ]
  }
]
