export const gen_cube = () => {
    var cube_data = [
        -1.0, 1.0, -1.0,   0.5, 0.5, 0.5,
        -1.0, 1.0, 1.0,    0.5, 0.5, 0.5,
        1.0, 1.0, 1.0,     0.5, 0.5, 0.5,
        1.0, 1.0, -1.0,    0.5, 0.5, 0.5,
        -1.0, 1.0, 1.0,    0.75, 0.25, 0.5,
        -1.0, -1.0, 1.0,   0.75, 0.25, 0.5,
        -1.0, -1.0, -1.0,  0.75, 0.25, 0.5,
        -1.0, 1.0, -1.0,   0.75, 0.25, 0.5,
        1.0, 1.0, 1.0,    0.25, 0.25, 0.75,
        1.0, -1.0, 1.0,   0.25, 0.25, 0.75,
        1.0, -1.0, -1.0,  0.25, 0.25, 0.75,
        1.0, 1.0, -1.0,   0.25, 0.25, 0.75,
        1.0, 1.0, 1.0,    1.0, 0.0, 0.15,
        1.0, -1.0, 1.0,    1.0, 0.0, 0.15,
        -1.0, -1.0, 1.0,    1.0, 0.0, 0.15,
        -1.0, 1.0, 1.0,    1.0, 0.0, 0.15,
        1.0, 1.0, -1.0,    0.0, 1.0, 0.15,
        1.0, -1.0, -1.0,    0.0, 1.0, 0.15,
        -1.0, -1.0, -1.0,    0.0, 1.0, 0.15,
        -1.0, 1.0, -1.0,    0.0, 1.0, 0.15,
        -1.0, -1.0, -1.0,   0.5, 0.5, 1.0,
        -1.0, -1.0, 1.0,    0.5, 0.5, 1.0,
        1.0, -1.0, 1.0,     0.5, 0.5, 1.0,
        1.0, -1.0, -1.0,    0.5, 0.5, 1.0,
    ];

    var cube_indicies = [
        0, 1, 2,
        0, 2, 3,
        5, 4, 6,
        6, 4, 7,
        8, 9, 10,
        8, 10, 11,
        13, 12, 14,
        15, 14, 12,
        16, 17, 18,
        16, 18, 19,
        21, 20, 22,
        22, 20, 23
    ];

    var cube_verticies = []
    var cube_colors = []
    for (let x = 0; x < cube_indicies.length; x++) {
        var i = cube_indicies[x]
        cube_verticies.push(cube_data[i * 6 + 0])
        cube_verticies.push(cube_data[i * 6 + 1])
        cube_verticies.push(cube_data[i * 6 + 2])
        cube_colors.push(cube_data[i * 6 + 3])
        cube_colors.push(cube_data[i * 6 + 4])
        cube_colors.push(cube_data[i * 6 + 5])
    }

    return [cube_verticies, cube_colors, cube_indicies.length]
}