add snake game tutorial

Author: x4nth055

README.md

@@ -279,5 +279,6 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
 -[How to Build a GUI Language Translator App in Python](https://www.thepythoncode.com/article/build-a-gui-language-translator-tkinter-python). ([code](gui-programming/gui-language-translator))
 -[How to Make an Image Editor in Python](https://www.thepythoncode.com/article/make-an-image-editor-in-tkinter-python). ([code](gui-programming/image-editor))
 -[How to Make a Checkers Game with Pygame in Python](https://www.thepythoncode.com/article/make-a-checkers-game-with-pygame-in-python). ([code](gui-programming/checkers-game))
+-[How to Make a Snake Game in Python](https://www.thepythoncode.com/article/make-a-snake-game-with-pygame-in-python). ([code](gui-programming/snake-game))
 
 For any feedback, please consider pulling requests.

gui-programming/snake-game/README.md

@@ -0,0 +1 @@
+# [How to Make a Snake Game in Python](https://www.thepythoncode.com/article/make-a-snake-game-with-pygame-in-python)

gui-programming/snake-game/requirements.txt

@@ -0,0 +1 @@
+pygame

gui-programming/snake-game/snake.py

@@ -0,0 +1,156 @@
+importpygame
+importrandom
+
+# setting up some initial parameters
+WIDTH, HEIGHT=600, 600
+BLOCK_SIZE=20
+
+pygame.font.init()
+score_font=pygame.font.SysFont("consolas", 20) # or any other font you'd like
+score=0
+
+# color definition
+WHITE= (255, 255, 255)
+RED= (255, 0, 0)
+
+# initialize pygame
+pygame.init()
+
+# setting up display
+win=pygame.display.set_mode((WIDTH, HEIGHT))
+
+# setting up clock
+clock=pygame.time.Clock()
+
+# snake and food initialization
+snake_pos= [[WIDTH//2, HEIGHT//2]]
+snake_speed= [0, BLOCK_SIZE]
+
+teleport_walls=True# set this to True to enable wall teleporting
+
+
+defgenerate_food():
+whileTrue:
+x=random.randint(0, (WIDTH-BLOCK_SIZE) //BLOCK_SIZE ) *BLOCK_SIZE
+y=random.randint(0, (HEIGHT-BLOCK_SIZE) //BLOCK_SIZE ) *BLOCK_SIZE
+food_pos= [x, y]
+iffood_posnotinsnake_pos:
+returnfood_pos
+
+food_pos=generate_food()
+
+defdraw_objects():
+win.fill((0, 0, 0))
+forposinsnake_pos:
+pygame.draw.rect(win, WHITE, pygame.Rect(pos[0], pos[1], BLOCK_SIZE, BLOCK_SIZE))
+pygame.draw.rect(win, RED, pygame.Rect(food_pos[0], food_pos[1], BLOCK_SIZE, BLOCK_SIZE))
+# Render the score
+score_text=score_font.render(f"Score: {score}", True, WHITE)
+win.blit(score_text, (10, 10)) # draws the score on the top-left corner
+
+
+defupdate_snake():
+globalfood_pos, score
+new_head= [snake_pos[0][0] +snake_speed[0], snake_pos[0][1] +snake_speed[1]]
+
+ifteleport_walls:
+# if the new head position is outside of the screen, wrap it to the other side
+ifnew_head[0] >=WIDTH:
+new_head[0] =0
+elifnew_head[0] <0:
+new_head[0] =WIDTH-BLOCK_SIZE
+ifnew_head[1] >=HEIGHT:
+new_head[1] =0
+elifnew_head[1] <0:
+new_head[1] =HEIGHT-BLOCK_SIZE
+
+ifnew_head==food_pos:
+food_pos=generate_food() # generate new food
+score+=1# increment score when food is eaten
+else:
+snake_pos.pop() # remove the last element from the snake
+
+snake_pos.insert(0, new_head) # add the new head to the snake
+
+
+defgame_over():
+# game over when snake hits the boundaries or runs into itself
+ifteleport_walls:
+returnsnake_pos[0] insnake_pos[1:]
+else:
+returnsnake_pos[0] insnake_pos[1:] or \
+snake_pos[0][0] >WIDTH-BLOCK_SIZEor \
+snake_pos[0][0] <0or \
+snake_pos[0][1] >HEIGHT-BLOCK_SIZEor \
+snake_pos[0][1] <0
+
+
+defgame_over_screen():
+globalscore
+win.fill((0, 0, 0))
+game_over_font=pygame.font.SysFont("consolas", 50)
+game_over_text=game_over_font.render(f"Game Over! Score: {score}", True, WHITE)
+win.blit(game_over_text, (WIDTH//2-game_over_text.get_width() //2, HEIGHT//2-game_over_text.get_height() //2))
+pygame.display.update()
+
+whileTrue:
+foreventinpygame.event.get():
+ifevent.type==pygame.QUIT:
+pygame.quit()
+return
+ifevent.type==pygame.KEYDOWN:
+ifevent.key==pygame.K_r:
+run() # replay the game
+return
+elifevent.key==pygame.K_q:
+pygame.quit() # quit the game
+return
+
+
+
+defrun():
+globalsnake_speed, snake_pos, food_pos, score
+snake_pos= [[WIDTH//2, HEIGHT//2]]
+snake_speed= [0, BLOCK_SIZE]
+food_pos=generate_food()
+score=0
+running=True
+whilerunning:
+foreventinpygame.event.get():
+ifevent.type==pygame.QUIT:
+running=False
+keys=pygame.key.get_pressed()
+forkeyinkeys:
+ifkeys[pygame.K_UP]:
+# when UP is pressed but the snake is moving down, ignore the input
+ifsnake_speed[1] ==BLOCK_SIZE:
+continue
+snake_speed= [0, -BLOCK_SIZE]
+ifkeys[pygame.K_DOWN]:
+# when DOWN is pressed but the snake is moving up, ignore the input
+ifsnake_speed[1] ==-BLOCK_SIZE:
+continue
+snake_speed= [0, BLOCK_SIZE]
+ifkeys[pygame.K_LEFT]:
+# when LEFT is pressed but the snake is moving right, ignore the input
+ifsnake_speed[0] ==BLOCK_SIZE:
+continue
+snake_speed= [-BLOCK_SIZE, 0]
+ifkeys[pygame.K_RIGHT]:
+# when RIGHT is pressed but the snake is moving left, ignore the input
+ifsnake_speed[0] ==-BLOCK_SIZE:
+continue
+snake_speed= [BLOCK_SIZE, 0]
+
+draw_objects()
+update_snake()
+ifgame_over():
+game_over_screen()
+break
+pygame.display.update()
+clock.tick(10)
+pygame.quit()
+
+
+if__name__=='__main__':
+run()