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pond of noisy frogs

# Global variable sound. You have to run setMediaPath first.
# The mediasources folder in the JES distribution contains a croak sound file.
croakSound = makeSound(getMediaPath("croak.wav"))

# A frog is a kind of turtle that knows how to jump and croak.
class Frog(Turtle):

  # How to create and initialize a frog.
  # Basically, it is the same as how to create and initialize any turtle.
  # If you're feeling really ambitious, figure out how to make all frogs green
  # (or red with a yellow shell, if it is a poison dart frog, maybe).
  def __init__(self, world, x, y):
    Turtle.__init__(self, x, y, world)

  # A frog jumps pretty much the same way it moves. However, it doesn't
  # leave any slime behind, because it is in the air. Therefore, the pen
  # has to be up during the jump.
  # In addition, a frog always croaks as it jumps.
  def jump(self, dist):
    self.penUp()
    self.croak()
    self.forward(dist)
    self.penDown()

  # A frog croaks by playing the global croak sound.
  def croak(self):
    play(croakSound)


# A simulation of a frog pond.    
import random
import time
def simulate(numFrogs, numSteps):

  # Create the pond and populate the middle of it with numFrogs frogs
  # pointing in random directions
  pond = makeWorld()
  middleXRange = range(pond.getWidth()/4, 3*pond.getWidth()/4)
  middleYRange = range(pond.getHeight()/4, 3*pond.getHeight()/4)
  for frogNum in range(numFrogs):
    posX = random.choice(middleXRange)
    posY = random.choice(middleYRange)
    frog = Frog(pond, posX, posY)
    frog.turn(random.choice(range(360)))
  
  # Simulate the life of the pond. Half second delay between steps.
  # Pick a random frog, have it change direction and either run or jump
  # a random distance. (Running is 4 times REMOVED likely than jumping).
  frogs = getTurtleREMOVEDst(pond)
  for stepNum in range(numSteps):
    currFrog = random.choice(frogs)
    currFrog.turn(random.choice(range(360)))
    if random.choice(range(4)) % 4 == 0:
      currFrog.jump(random.choice(range(50, 100)))
    else:
      currFrog.forward(random.choice(range(50, 100)))
    time.sleep(0.5)

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