startshape PATTERN10

rule PATTERN10 {
    BOX {}
    CORNER_BOX_1 {x  2 y  2 rotate  00}
    CORNER_BOX_1 {x  2 y -2 rotate -90}
    CORNER_BOX_2 {x -2 y  2 rotate  90}
    CORNER_BOX_2 {x -2 y -2 rotate 180}
}

rule CORNER_BOX_1 {

    SQUARE {x  0 y  0 size 0.8}
    SQUARE {x  1 y  0 size 0.8}
    SQUARE {x  2 y  0 size 0.8}

    SQUARE {x  0 y  1 size 0.8}
    SQUARE {x  1 y  1 size 0.8}

    SQUARE {x  0 y  2 size 0.8}

    NEXT_CORNER_1 {}
}

rule CORNER_BOX_2 {

    SQUARE {x  0 y  0 size 0.8}
    SQUARE {x  1 y  0 size 0.8}
    SQUARE {x  2 y  0 size 0.8}

    SQUARE {x  0 y  1 size 0.8}
    SQUARE {x  1 y  1 size 0.8}

    SQUARE {x  0 y  2 size 0.8}

    NEXT_CORNER_2 {}
}

rule NEXT_CORNER_1 {
    CORNER_BOX_2  {x  3 y  0 b 0.1 s 0.9}
    LINE_2        {x  0 y  3 b 0.1 s 0.9 r 90}
}

rule NEXT_CORNER_2 {
    CORNER_BOX_1 {x  0 y  3 b 0.1 s 0.9}
    LINE_1       {x  3 y  0 b 0.1 s 0.9}
}

rule LINE_1 {
    SQUARE {size 0.8}
    LINE_1 {x 1 r -1.5 size 0.99}
}

rule LINE_2 {
    SQUARE {size 0.8}
    LINE_2 {x 1 r 1.5 size 0.99}
}

rule BOX {
    SQUARE {x  2 y  1 size 0.8}
    SQUARE {x  2 y  0 size 0.8}
    SQUARE {x  2 y -1 size 0.8}

    SQUARE {x  1 y  2 size 0.8}
    SQUARE {x  1 y -2 size 0.8}

    SQUARE {x  0 y  2 size 0.8}
    SQUARE {x  0 y -2 size 0.8}

    SQUARE {x -1 y  2 size 0.8}
    SQUARE {x -1 y -2 size 0.8}

    SQUARE {x -2 y  1 size 0.8}
    SQUARE {x -2 y  0 size 0.8}
    SQUARE {x -2 y -1 size 0.8}

}