? world.turtles()
: world.getBreed(breedName);
for (int i = 0; i < numberOfTurtles; i++) {
Turtle turtle = world.createTurtle(breed);
turtle.colorDouble(Double.valueOf(10.0 * i + 5.0));
turtle.heading((360.0 * i) / numberOfTurtles);
agentset.add(turtle);
workspace.joinForeverButtons(turtle);
}
context.runExclusiveJob(agentset, next);
}