Rhombic Staircase Gun Arrangements

Rhombic Staircase is a efficient way to arrange guns that most of my robots are using. It can vary in slope and aspect ratio to adapt to the chassis. I propose a method to desccribe that. The template is *RSxxy-zz*. - 'RS' is the acronym of 'rhombic staircase'. - 'xx' is the interval width of guns in a same row. - 'y' is the vertical offset between rows. - 'zz' is gun counts (not necessary). Note that the measure of '7' in RS71 does not cross the axis of symmetry. For example, such is RS101.