Error when making square/long objects

[nataliakoliou]

The current implementations of the make_square and make_long functions may result in errors, as the generated square or long shape could exceed the specified max_dim limit along the x or y axis. This issue arises from the calculation of the ending positions (x2/y2) being derived from the starting positions (x1/y1) and delta, which could potentially be 99. Therefore the ending positions may exceed 100.