python dogduck.py [speed of dog / speed of duck]
This is my first attempt at using pygame and it turned out to be easier than expected.
Some friends and I were working on 538 blog's dog and duck riddle, and wanted a tool to visualize / compare different strategies.
At the moment, the duck_p and dog_p functions return the next position for the dog and duck, given the dog and duck's current position and velocity.
We did not figure out the solution in time, but weren't too far off.
The official solution for the duck's motion is currently in duck_p, other ideas are commented out.
Setting GRAPHICS = False will disable pygame visualization, and simply print the result of the simulation.
At the moment this code isn't the most numerically stable, some values of the dog's speed seem to fail the angle check in duck_p. In a couple cases I found, a sufficiently small dt solved the problem.