Discontinuous Deformation Analysis (DDA), a powerful tool for simulating the mechanical behavior of rock masses and discontinuous systems, has seen remarkable progress in recent 40 years. This ...

Discontinuous Deformation Analysis (DDA): A numerical simulation method that models the behaviour of geotechnical systems by considering the independent movement and interaction of discrete blocks.

First off a normal DDA algorithm, that's easy.. Then off to Bresenham and midpoint, but almost all sources I have found says that Bresenham and midpoint is the same one.