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- # Simple Snake Game in Python 3 for Beginners
- # By @TokyoEdTech
- import turtle
- import time
- import random
- delay = 0.1
- # Score
- score = 0
- high_score = 0
- # Set up the screen
- wn = turtle.Screen()
- wn.title("Snake Game by @TokyoEdTech")
- wn.bgcolor("green")
- wn.setup(width=600, height=600)
- wn.tracer(0) # Turns off the screen updates
- # Snake head
- head = turtle.Turtle()
- head.speed(0)
- head.shape("square")
- head.color("black")
- head.penup()
- head.goto(0, 0)
- head.direction = "stop"
- # Snake food
- food = turtle.Turtle()
- food.speed(0)
- food.shape("circle")
- food.color("red")
- food.penup()
- food.goto(0, 100)
- segments = []
- # Pen
- pen = turtle.Turtle()
- pen.speed(0)
- pen.shape("square")
- pen.color("white")
- pen.penup()
- pen.hideturtle()
- pen.goto(0, 260)
- pen.write("Score: 0 High Score: 0", align="center", font=("Courier", 24, "normal"))
- # Functions
- def go_up():
- if head.direction != "down":
- head.direction = "up"
- def go_down():
- if head.direction != "up":
- head.direction = "down"
- def go_left():
- if head.direction != "right":
- head.direction = "left"
- def go_right():
- if head.direction != "left":
- head.direction = "right"
- def move():
- if head.direction == "up":
- y = head.ycor()
- head.sety(y + 20)
- if head.direction == "down":
- y = head.ycor()
- head.sety(y - 20)
- if head.direction == "left":
- x = head.xcor()
- head.setx(x - 20)
- if head.direction == "right":
- x = head.xcor()
- head.setx(x + 20)
- # Keyboard bindings
- wn.listen()
- wn.onkeypress(go_up, "w")
- wn.onkeypress(go_down, "s")
- wn.onkeypress(go_left, "a")
- wn.onkeypress(go_right, "d")
- # Main game loop
- while True:
- wn.update()
- # Check for a collision with the border
- if head.xcor() > 290 or head.xcor() < -290 or head.ycor() > 290 or head.ycor() < -290:
- time.sleep(1)
- head.goto(0, 0)
- head.direction = "stop"
- # Hide the segments
- for segment in segments:
- segment.goto(1000, 1000)
- # Clear the segments list
- segments.clear()
- # Reset the score
- score = 0
- # Reset the delay
- delay = 0.1
- pen.clear()
- pen.write("Score: {} High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))
- # Check for a collision with the food
- if head.distance(food) < 20:
- # Move the food to a random spot
- x = random.randint(-290, 290)
- y = random.randint(-290, 290)
- food.goto(x, y)
- # Add a segment
- new_segment = turtle.Turtle()
- new_segment.speed(0)
- new_segment.shape("square")
- new_segment.color("grey")
- new_segment.penup()
- segments.append(new_segment)
- # Shorten the delay
- delay -= 0.001
- # Increase the score
- score += 10
- if score > high_score:
- high_score = score
- pen.clear()
- pen.write("Score: {} High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))
- # Move the end segments first in reverse order
- for index in range(len(segments) - 1, 0, -1):
- x = segments[index - 1].xcor()
- y = segments[index - 1].ycor()
- segments[index].goto(x, y)
- # Move segment 0 to where the head is
- if len(segments) > 0:
- x = head.xcor()
- y = head.ycor()
- segments[0].goto(x, y)
- move()
- # Check for head collision with the body segments
- for segment in segments:
- if segment.distance(head) < 20:
- time.sleep(1)
- head.goto(0, 0)
- head.direction = "stop"
- # Hide the segments
- for segment in segments:
- segment.goto(1000, 1000)
- # Clear the segments list
- segments.clear()
- # Reset the score
- score = 0
- # Reset the delay
- delay = 0.1
- # Update the score display
- pen.clear()
- pen.write("Score: {} High Score: {}".format(score, high_score), align="center",
- font=("Courier", 24, "normal"))
- time.sleep(delay)
- wn.mainloop()
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