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import turtle as t | |
import random as rd | |
t.bgcolor('yellow') | |
caterpillar = t.Turtle() | |
caterpillar.shape('square') | |
caterpillar.color('red') | |
caterpillar.speed(0) | |
caterpillar.penup() | |
caterpillar.hideturtle() | |
leaf = t.Turtle() | |
leaf_shape = ((0,0),(14,2),(18,6),(20,20),(6,18),(2,14)) | |
t.register_shape('leaf',leaf_shape) | |
leaf.shape('leaf') | |
leaf.color('green') | |
leaf.penup() | |
leaf.hideturtle() | |
leaf.speed() | |
game_started = False | |
text_turtle = t.Turtle() | |
text_turtle.write('Press SPACE to start',align='center',font=('Arial',16,'bold')) | |
text_turtle.hideturtle() | |
score_turtle = t.Turtle() | |
score_turtle.hideturtle() | |
score_turtle.speed(0) | |
def outside_window(): | |
left_wall = -t.window_width()/2 | |
right_wall = t.window_width()/2 | |
top_wall = t.window_height()/2 | |
bottom_wall = -t.window_height()/2 | |
(x,y) = caterpillar.pos() | |
outside = x < left_wall or x > right_wall or y < bottom_wall or y > top_wall | |
return outside | |
def game_over(): | |
caterpillar.color('yellow') | |
leaf.color('yellow') | |
t.penup() | |
t.hideturtle() | |
t.write('GAME OVER!',align='center' , font=('Aerial',30,'normal')) | |
def display_score(current_score): | |
score_turtle.clear() | |
score_turtle.penup() | |
x = (t.window_width() / 2)-50 | |
y = (t.window_height() / 2)-50 | |
score_turtle.setpos(x,y) | |
score_turtle.write(str(current_score) , align = 'right',font=('Arial',40,'bold')) | |
def place_leaf(): | |
leaf.hideturtle() | |
leaf.setx(rd.randint(-200,200)) | |
leaf.sety(rd.randint(-200,200)) | |
leaf.showturtle() | |
def start_game(): | |
global game_started | |
if game_started: | |
return | |
game_started = True | |
score = 0 | |
text_turtle.clear() | |
caterpillar_speed = 2 | |
caterpillar_length = 3 | |
caterpillar.shapesize(1,caterpillar_length,1) | |
caterpillar.showturtle() | |
display_score(score) | |
place_leaf() | |
while True: | |
caterpillar.forward(caterpillar_speed) | |
if caterpillar.distance(leaf)<20: | |
place_leaf() | |
caterpillar_length = caterpillar_length + 1 | |
caterpillar.shapesize(1,caterpillar_length,1) | |
caterpillar_speed = caterpillar_speed + 1 | |
score = score + 10 | |
display_score(score) | |
if outside_window(): | |
game_over() | |
break | |
def move_up(): | |
if caterpillar.heading() == 0 or caterpillar.heading() == 180: | |
caterpillar.setheading(90) | |
def move_down(): | |
if caterpillar.heading() == 0 or caterpillar.heading() == 180: | |
caterpillar.setheading(270) | |
def move_left(): | |
if caterpillar.heading() == 90 or caterpillar.heading() == 270: | |
caterpillar.setheading(180) | |
def move_right(): | |
if caterpillar.heading() == 90 or caterpillar.heading() == 270: | |
caterpillar.setheading(0) | |
t.onkey(start_game,'space') | |
t.onkey(move_up,'Up') | |
t.onkey(move_right,'Right') | |
t.onkey(move_down,'Down') | |
t.onkey(move_left,'Left') | |
t.listen() | |
t.mainloop() |
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