function makeRealTerrain(name, sides) {
    let views = {};

    sides.forEach(side => {
        views[side[0]] = {
            attributes: {
                height: {
                    name: "Height",
                    power: 1,
                    type: "length",
                    base: math.unit(side[1], "meters")
                }
            },
            image: { source: "./media/real-terrain/" + (side[2] ? side[2] : name) + "/" + side[0] + ".svg" },
            name: side[0],
            rename: true
        }
    })

    return {
        name: name,
        constructor: () => makeEntity({ name: name }, views)
    }
}

const dataMountains = [
        ["Denali-North", 4322.0],
        ["Denali-Northwest", 4322.0],
        ["Denali-West", 4322.0],
        ["Everest-North", 5483.0],
        ["Everest-Northwest", 5483.0],
        ["Everest-West", 5483.0],
        ["Fuji-North", 3014.0],
        ["Fuji-Northwest", 3014.0],
        ["Fuji-West", 3014.0],
        ["K2-North", 4580.0],
        ["K2-Northwest", 4580.0],
        ["K2-West", 4580.0],
        ["Kilimanjaro-North", 2979.0],
        ["Kilimanjaro-Northwest", 2979.0],
        ["Kilimanjaro-West", 2979.0],
        ["Matterhorn-North", 1802.0],
        ["Matterhorn-Northwest", 1802.0],
        ["Matterhorn-West", 1802.0],
        ["Olympus-North", 1897.0],
        ["Olympus-Northwest", 1897.0],
        ["Olympus-West", 1897.0],
        ["Saint Elias-North", 4455.0],
        ["Saint Elias-Northwest", 4455.0],
        ["Saint Elias-West", 4455.0]
    ];

function makeRealTerrains() {
    const terrain = [];

    terrain.push(makeRealTerrain(
        "Mountains",
        dataMountains
    ))

    terrain.sort((e1, e2) => e1.name.localeCompare(e2.name))

    return terrain
}