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contrib/Games/main.py

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+import pygame
+import random
+
+# Initialise pygame
+pygame.init()
+
+# Define colors
+white=(255,255,255)
+black=(0,0,0)
+red=(255,0,0)
+orange=(255,165,0)
+green=(0,255,0)
+# Dimensions
+width,height=800,600
+
+game_display=pygame.display.set_mode((width,height))
+pygame.display.set_caption('Snake Game by DP')
+
+clock=pygame.time.Clock()
+
+snake_size=20
+snake_speed=10
+
+message_font=pygame.font.SysFont('ubuntu',30)
+score_font=pygame.font.SysFont('ubuntu',25)
+
+def print_score(score):
+    score_text=score_font.render("Score: "+str(score),True,green)
+    game_display.blit(score_text,[0,0])
+
+# draw a rectangle snake dynamically with size=snake_size
+def draw_snake(snake_size,snake_pixels):
+    for pixel in snake_pixels:
+        pygame.draw.rect(game_display, white, [pixel[0],pixel[1],snake_size,snake_size])
+
+
+def run_game():
+    game_over=False
+    game_close=False
+    # start position of snake
+    x=width/2
+    y=height/2
+
+    x_speed=0
+    y_speed=0
+
+    snake_pixels=[]
+    snake_length=1
+
+    target_x = round(random.randrange(0, width - snake_size)/20.0)*20.0
+    target_y = round(random.randrange(0, height - snake_size)/20.0)*20.0
+
+    while not game_over:
+        while game_close:
+            game_display.fill(black)
+            game_over_message=message_font.render("Game Over!",True,red)
+            game_display.blit(game_over_message,[width/3,height/3])
+            print_score(snake_length-1)
+            pygame.display.update()
+
+            for event in pygame.event.get():
+                if event.type==pygame.KEYDOWN:
+                    if event.key==pygame.K_1:
+                        game_over=True
+                        game_close=False
+                    if event.key==pygame.K_2:
+                        run_game()
+                if event.type==pygame.QUIT:
+                    game_over=True
+                    game_close=False
+
+
+
+        for event in pygame.event.get():
+            if event.type==pygame.QUIT:
+                game_over=True
+            if event.type==pygame.KEYDOWN:
+                if event.key==pygame.K_LEFT:
+                    x_speed=-snake_size
+                    y_speed=0
+                if event.key==pygame.K_RIGHT:
+                    x_speed=snake_size
+                    y_speed=0
+                if event.key==pygame.K_UP:
+                    x_speed=0
+                    y_speed=-snake_size
+                if event.key==pygame.K_DOWN:
+                    x_speed=0
+                    y_speed=snake_size
+        if x>=width or x<0 or y>=height or y<0:
+            game_close=True
+        x+=x_speed
+        y+=y_speed
+
+        game_display.fill(black)
+        pygame.draw.rect(game_display,orange,[target_x,target_y,snake_size,snake_size])
+
+        snake_pixels.append([x,y])
+
+        if len(snake_pixels)>snake_length:
+            del snake_pixels[0]
+        for pixel in snake_pixels[:-1]:
+            if pixel == [x,y]:
+                game_close=True
+
+        draw_snake(snake_size,snake_pixels)
+        print_score(snake_length-1)  # because starting from 1
+
+        pygame.display.update()
+
+        if x==target_x and y==target_y:
+            target_x = round(random.randrange(0, width - snake_size) / 20.0) * 20.0
+            target_y = round(random.randrange(0, height - snake_size) / 20.0) * 20.0
+            snake_length += 1
+        clock.tick(snake_speed)
+    pygame.quit()
+    quit()
+
+
+run_game()