[
    {
        "id": "transporter",
        "capacity": {
            "solid": 10000,
            "liquid": 10000,
            "gas": 10000
        },
        "requirements": {
            "buildings": [
                {
                    "id": "shipyard",
                    "level": 1
                }
            ],
            "research": [],
            "resources": {
                "iron": 1000,
                "gold": 500
            }
        },
        "time": 40,
        "structure": {
            "hitpoints": 1000,
            "defense": 10,
            "attack": 0
        },
        "speed": 10
    }, {
        "id": "fighter",
        "capacity": {
            "solid": 100,
            "liquid": 100,
            "gas": 100
        },
        "requirements": {
            "buildings": [
                {
                    "id": "shipyard",
                    "level": 1
                }
            ],
            "research": [],
            "resources": {
                "iron": 500,
                "gold": 200
            }
        },
        "time": 15,
        "structure": {
            "hitpoints": 800,
            "defense": 20,
            "attack": 20
        },
        "speed": 12
    }
]