I've been trying to code the snake game with pyglet and I have everything worked out except for one problem, and that problem is that I can't figure out how to have the snake actually turn instead of just rotate 90 degrees. My current code makes the snake always move the direction the head is facing, however, when you turn the snake, it makes a full 90 degree turn instead of doing what the snake normally does in for example the google doodle snake game, and I can't figure out why. Does anyone have any ideas? (FYI I am pretty new to python, so my code may be very ugly.)
# Modules
import pyglet as pyg
import random
import math
from pyglet.window import key
from time import sleep
# Creating the window, sprites, and labels
window = pyg.window.Window(800,600)
snake_head_image = pyg.image.load('snake_head.png')
snake_head_image.anchor_x = 12
snake_head_image.anchor_y = 12
snake_body_image = pyg.image.load('snake_body.png')
snake_body_image.anchor_x = 12
snake_body_image.anchor_y = 12
snake_head = pyg.sprite.Sprite(snake_head_image,x=400,y=300)
snake_bodies = [pyg.sprite.Sprite(snake_body_image,x=snake_head.x,y=snake_head.y-25),pyg.sprite.Sprite(snake_body_image,x=snake_head.x,y=snake_head.y)]
apple = pyg.shapes.Circle(x=random.randint(10,790),y=random.randint(10,590),radius=10,color=(255,0,0))
keys = key.KeyStateHandler()
window.push_handlers(keys)
score = pyg.text.Label(f"Score: {len(snake_bodies)}",font_size=12,x=760,y=590,anchor_x='center',anchor_y='center')
end = pyg.text.Label("",font_size=36,x=400,y=300,anchor_x='center',anchor_y='center')
@window.event
def on_draw():
window.clear()
apple.draw()
snake_head.draw()
snake_bodies[0].draw()
for z in range(len(snake_bodies)):
snake_bodies[z].draw()
score.draw()
end.draw()
# Rotating the snake on key press
@window.event
def on_key_press(symbol,modifiers):
if (symbol == pyg.window.key.LEFT) and snake_head.rotation != 90:
snake_head.rotation = 270
snake_bodies[0].rotation = 270
snake_bodies[0].y = snake_head.y
snake_bodies[0].x = snake_head.x + 25
elif (symbol == pyg.window.key.RIGHT) and snake_head.rotation != 270:
snake_head.rotation = 90
snake_bodies[0].rotation = 90
snake_bodies[0].y = snake_head.y
snake_bodies[0].x = snake_head.x - 25
elif (symbol == pyg.window.key.UP) and snake_head.rotation != 180:
snake_head.rotation = 0
snake_bodies[0].rotation = 0
snake_bodies[0].y = snake_head.y - 25
snake_bodies[0].x = snake_head.x
elif (symbol == pyg.window.key.DOWN) and snake_head.rotation != 0:
snake_head.rotation = 180
snake_bodies[0].rotation = 180
snake_bodies[0].y = snake_head.y + 25
snake_bodies[0].x = snake_head.x
# Always making the snake move forward
@window.event
def moveSnake(dt):
if snake_head.rotation == 270:
snake_head.x -= 3
snake_bodies[0].x -= 3
for z in range(len(snake_bodies)):
if z != 0:
snake_bodies[z].x = snake_bodies[z-1].x + 25
snake_bodies[z].y = snake_bodies[z-1].y
snake_bodies[z].rotation = snake_bodies[0].rotation
else:
pass
elif snake_head.rotation == 90:
snake_head.x += 3
snake_bodies[0].x += 3
for z in range(len(snake_bodies)):
if z != 0:
snake_bodies[z].x = snake_bodies[z-1].x - 25
snake_bodies[z].y = snake_bodies[z-1].y
snake_bodies[z].rotation = snake_bodies[0].rotation
else:
pass
elif snake_head.rotation == 0:
snake_head.y += 3
snake_bodies[0].y += 3
for z in range(len(snake_bodies)):
if z != 0:
snake_bodies[z].x = snake_bodies[z-1].x
snake_bodies[z].y = snake_bodies[z-1].y - 25
snake_bodies[z].rotation = snake_bodies[0].rotation
else:
pass
elif snake_head.rotation == 180:
snake_head.y -= 3
snake_bodies[0].y -= 3
for z in range(len(snake_bodies)):
if z != 0:
snake_bodies[z].x = snake_bodies[z-1].x
snake_bodies[z].y = snake_bodies[z-1].y + 25
snake_bodies[z].rotation = snake_bodies[0].rotation
else:
pass
# Collisions with the apple and the borders
distance_x_apple = snake_head.x - apple.x
distance_y_apple = snake_head.y - apple.y
distance_x_upper_border = snake_head.x - window.width
distance_y_upper_border = snake_head.y - window.height
distance_x_lower_border = snake_head.x - 0
distance_y_lower_border = snake_head.y - 0
if 10 >= abs(distance_x_apple) and 10 >= abs(distance_y_apple):
apple.x = random.randint(10,790)
apple.y = random.randint(10,590)
if snake_head.rotation == 270:
snake_bodies.append(pyg.sprite.Sprite(snake_body_image,x=snake_bodies[len(snake_bodies)-1].x-25,y=snake_bodies[len(snake_bodies)-1].y))
snake_bodies[-1].rotation = 270
elif snake_head.rotation == 90:
snake_bodies.append(pyg.sprite.Sprite(snake_body_image,x=snake_bodies[len(snake_bodies)-1].x+25,y=snake_bodies[len(snake_bodies)-1].y))
snake_bodies[-1].rotation = 90
elif snake_head.rotation == 180:
snake_bodies.append(pyg.sprite.Sprite(snake_body_image,x=snake_bodies[len(snake_bodies)-1].x,y=snake_bodies[len(snake_bodies)-1].y-25))
snake_bodies[-1].rotation = 180
elif snake_head.rotation == 0:
snake_bodies.append(pyg.sprite.Sprite(snake_body_image,x=snake_bodies[len(snake_bodies)-1].x,y=snake_bodies[len(snake_bodies)-1].y+25))
snake_bodies[-1].rotation = 0
score.text = f"Score: {len(snake_bodies)}"
if 5 >= abs(distance_x_upper_border) or 5 >= abs(distance_y_upper_border) or 5 >= abs(distance_x_lower_border) or 5>= abs(distance_y_lower_border):
snake_head.visible = False
for z in range(len(snake_bodies)):
snake_bodies[z].visible = False
sleep(0.3)
end.text = f"Game Over!\nScore: {len(snake_bodies)}"
pyg.clock.schedule_interval(moveSnake, 1 / 60)
pyg.app.run()
