modifying a turtle game for python .

1. Ask the user for the initial force and firing angle to launch the turtle which already has variables instead.''

2. from a for-loop, to a while-loop. This loop shall stop the animation when the turtle hits the mountain, or the target, or falls below the ground line missing the mountain and the target, or goes out of bounds

3. Show "You win" if the turtle falls inside the red rectangle. End the game when the user wins.

4. Show an appropriate message when the turtle hits the mountain, falls below the ground line (y=0), or goes out of bounds (assume the game area is defined by the corners (0,0) and (600,400))

5. Show "You lose" if the player fails to land the turtle on the target after three attempts.

6. Ask the user if s/he wants to play again. Your program shall allow the player to play again (allow three more attempts) if the answer is yes. Otherwise, it should display "Thanks for playing" if the answer is "No."

import math

import turtle

import random

# Resize window to 600x400

turtle.setup(600,400)

# Set coordinate system so bottom-left corner is (-10,-10)

# and top-right corner is (590, 390)

turtle.setworldcoordinates(-10,-10,590,390)

turtle.shape('turtle')

# Constants

GRAVITY = -10

DT = 0.1

# Draw "ground" line (at y=0)

turtle.hideturtle()

turtle.penup()

turtle.pensize(5)

turtle.goto(-10,0)

turtle.pendown()

turtle.goto(640,0)

turtle.penup()

# Draw mountain

mountainX1 = random.randint(1,10) * 10 + 120

mountainY1 = 0

mountainX2 = mountainX1 + random.randint(3,10) * 20

mountainY2 = random.randint(4,10) * 20

turtle.color('green')

turtle.begin_fill()

turtle.goto(mountainX1, mountainY1)

turtle.pendown()

turtle.goto(mountainX2, mountainY1)

turtle.goto(mountainX2, mountainY2)

turtle.goto(mountainX1, mountainY2)

turtle.goto(mountainX1, mountainY1)

turtle.end_fill()

turtle.penup()

# Draw landing target

targetX1 = mountainX2 + random.randint(5,10) * 10

targetY1 = 0

targetX2 = targetX1 + 50

targetY2 = 20

turtle.color('red')

turtle.begin_fill()

turtle.goto(targetX1, targetY1)

turtle.pendown()

turtle.goto(targetX2, targetY1)

turtle.goto(targetX2, targetY2)

turtle.goto(targetX1, targetY2)

turtle.goto(targetX1, targetY1)

turtle.end_fill()

turtle.penup()

turtle.color('black')

# Place turtle at (0,0)

turtle.goto(0,0)

turtle.showturtle()

# Input information: initial force and firing angle

initialForce = 80

firingAngle = 65

# Determine initial velocities

dx = initialForce * math.cos(math.radians(firingAngle))

dy = initialForce * math.sin(math.radians(firingAngle))

# Launch the turtle!

x = 0

y = 0

for i in range(145): # move turtle 145 times

# Calculate new location of turtle

x = x + dx * DT

y = y + dy * DT

turtle.goto(x, y)

# Calculate new vertical velocity

dy = dy + GRAVITY * DT

turtle.done()