Coders Strike Back Tools

Simulator Test Suite

The test suite includes a python script and various replay files, used to validate the correctness and accuracy of a CSB simulation. Any simulator, which can be wrapped in a executable file can be tested. A basic visualization of the replay scenarios is also included. Since the new test script version also tests the accuracy of checkpoint detection, the wrapper script should run in a double loop as described below. Note that angle is the only value gives as floating point value. This is necessary since CodinGame continues to use exact floating point values internally and only rounds them for providing int angle values of the pods.

Simulator Input/Output

Outer loop (until process is killed):

First line: The number checkpointCount of checkpoints on the map. Next checkpointCount lines: 2 integers checkpointX, checkpointY for the coordinates of the checkpoint. Next line: The number tests of simulation steps to run on this map.

Inner loop (runs exactly tests times):

One line for each of the 4 pods, represented by: 4 integers, 1 float and 3 more integers, x, y for the position, vx, vy for the speed vector, angle for the rotation angle in degrees (only float value), ncpid the number of the next checkpoint, shield for the engine recharge timer (goes from 0 up to 3 while shielding and decreases once per turn afterwards), boosted as 0/1 variable (=1 if pod has already used boosters)

One line for each of the pods moves, given by: tx, ty the target of the pod, and thrust the acceleration of the pod (this is SHIELD or BOOST if the pod wants to use either)

Output for one inner loop execution: New state for each of the 4 pods: x, y, vx, vy, angle, ncpid, shield, boosted in the same format as given above.

Testing Script

The src/simulator_test.py script runs the binary and feeds it with replay data from the data/ directory.

Specify your binary with --binary and choose the replays with --replays. A number of options for disabling tests can be used too. Most useful for testing is --only for executing only specific test categories. By default the script only shows a summary, more test details can be seen by raising the verbosity with -v, -vv and -vvv. In order to see a visualization of the failed test situation, specify --gui. Pressing the Enter key will advance the view. See also --help for more details.