Muscular Snake Post Processing Problem

[Aar2d2006]

Describe the bug
rod_com_lines[rod_idx].set_xdata[com[0]]
rod_com_lines[rod_idx].set_ydata(com[2]).
These methods are supposed to accept float lists as parameters for the inputs in float. com[0] is a float and provides a runtime error when used in these methods. To fix this com[0] should be inputted as a list in the form of [com[0]]. After doing so, the code runs without error.