Create snakegame.py

Author: srivastava-s

snake game/snakegame.py

@@ -0,0 +1,133 @@
+import pygame
+import random
+
+
+
+
+#colors
+white=(255,255,255)
+red=(255,0,0)
+black=(0,0,0)
+x = pygame.init()
+width_of_screen = 900
+height_of_screen = 600
+gameWindow = pygame.display.set_mode((width_of_screen,height_of_screen))
+pygame.display.set_caption("snake game-PythonGeeks")
+pygame.display.update()
+clock = pygame.time.Clock()
+font = pygame.font.SysFont(None,55)
+#display score on the screen
+def score_on_screen(text,color,x,y):
+    screen_text = font.render(text, True , color)
+    gameWindow.blit(screen_text,[x,y])
+
+
+
+
+# plotting the snake
+def plot_snake(gameWindow, color ,snake_list,snake_size):
+    for x,y in snake_list:
+        pygame.draw.rect(gameWindow,color,[x,y,snake_size,snake_size])
+
+
+
+
+# making the welcome screen
+def welcome():
+    game_exit = False
+    while not game_exit:
+        gameWindow.fill((255,182,193))
+        score_on_screen("Welcome to snakes game by PythonGeeks",black,90,250)
+        score_on_screen("Press spacebar to play",black,232,290)
+        for event in pygame.event.get():
+            if event.type==pygame.QUIT:
+                game_exit = True
+            if event.type==pygame.KEYDOWN:
+                if event.key==pygame.K_SPACE:
+                    game()
+        pygame.display.update()
+        clock.tick(60)
+
+
+
+
+
+#snake game 
+def game():
+    game_exit= False
+    game_over= False
+    snake_x=45
+    snake_y=55
+    velocity_x= 0
+    velocity_y= 0
+    init_velocity = 5
+    score= 0
+    apple_x = random.randint(20,width_of_screen/2)
+    apple_y = random.randint(20,height_of_screen/2)
+    snake_size=30
+    snake_list = []
+    snake_length = 1
+    fps=40
+    with open ("highscore.txt","r") as f:
+        highscore = f.read()
+    while not game_exit:
+        if game_over:
+            with open ("highscore.txt","w") as f:
+                f.write(str(highscore))
+            gameWindow.fill(white)
+            score_on_screen("Game Over! Press Enter to continue",red,100,250)
+            for event in pygame.event.get():
+                if event.type == pygame.QUIT:
+                    game_exit = True
+                if event.type== pygame.KEYDOWN:
+                    if event.key == pygame.K_RETURN:
+                        welcome()
+        else:
+            for event in pygame.event.get():
+                if event.type == pygame.QUIT:
+                    game_exit = True
+                if event.type==pygame.KEYDOWN:
+                    if event.key == pygame.K_RIGHT:
+                        velocity_x =  init_velocity
+                        velocity_y = 0
+                    if event.key == pygame.K_LEFT:
+                        velocity_x = -init_velocity
+                        velocity_y = 0
+                    if event.key == pygame.K_UP:
+                        velocity_y = -init_velocity
+                        velocity_x = 0
+                    if event.key == pygame.K_DOWN:
+                        velocity_y =  init_velocity
+                        velocity_x = 0
+            snake_x+=velocity_x
+            snake_y+=velocity_y
+            if abs(snake_x - apple_x)<20 and abs(snake_y - apple_y)<20:
+                score+=10
+                apple_x = random.randint(20,width_of_screen/2)
+                apple_y = random.randint(20,height_of_screen/2)
+                snake_length+=5
+                if score>int(highscore):
+                    highscore = score
+            gameWindow.fill(white)
+            score_on_screen("Score: "+str(score) + " highscore: "+str(highscore),red,5,5)
+            pygame.draw.rect(gameWindow,red,[apple_x,apple_y,snake_size,snake_size])
+            head=[]
+            head.append(snake_x)
+            head.append(snake_y)
+            snake_list.append(head)
+            if len(snake_list)>snake_length:
+                del snake_list[0]
+            if head in snake_list[:-1]:
+                game_over=True
+            if snake_x<0 or snake_x>width_of_screen or snake_y<0 or snake_y>height_of_screen:
+                game_over = True
+            plot_snake(gameWindow,black,snake_list,snake_size)
+            pygame.draw.rect(gameWindow,black,[snake_x,snake_y,snake_size,snake_size])
+        pygame.display.update() 
+        clock.tick(fps)
+    pygame.quit()
+    quit()
+welcome()
+
+
+