env = new PolytrisEnvironment(
params,
(int) size.x + addWidth,
(int) size.y + addHeight,
new SimpleAcceleratingClock(15, 1000, 2),
new HashSet<ArrayList<Vector2D>>());
// Make all corners of field visualized.
PacmanAgent2D pac0 = new PacmanAgent2D(0, env, params);
env.addAgent(pac0, new Vector2D(0, 0), 0);