Skip to content

Instantly share code, notes, and snippets.

@ncchen99

ncchen99/Greedy-Snake.py

Last active Jan 19, 2020
Embed
What would you like to do?
import pygame, sys, time, random
#初始設定(全域變數)
# tuple形式傳遞
# 顏色 = (R, G, B)
black = (0, 0, 0)
white = (255, 255, 255)
red = (255, 0, 0)
green = (0, 255, 0)
blue = (0, 0, 255)
# 視窗大小
frame_size_x = 720
frame_size_y = 480
game_window = pygame.display.set_mode((frame_size_x, frame_size_y))
pygame.display.set_caption("snake")
score = 0
# 蛇
snake_pos = [300, 300]
snake_body = [[300, 300], [290, 300], [280, 300]]
direction = 'RIGHT'
change_to = direction
speed = 15
# 吃的點點
food_pos = [random.randrange(1, (frame_size_x//10)) * 10, random.randrange(1, (frame_size_y//10)) * 10]
food_spawn = True
# 偵數控制
fps_controller = pygame.time.Clock()
flag = 0
# 加速
def accelerate():
global score
global speed
global flag
if speed <= 27 and flag == 1 :
speed += 1
flag = 0
# 顯示分數
def show_Score(choice, color, font, size):
global score
score_font = pygame.font.SysFont(font, size)
score_surface = score_font.render('Score : ' + str(score), True, color)
score_rect = score_surface.get_rect()
if choice == 1:
score_rect.midtop = (frame_size_x/10, 15)
else:
score_rect.midtop = (frame_size_x/2, frame_size_y/2)
game_window.blit(score_surface, score_rect)
# 顯示"重新開始"文字
def restart(color, font, size):
restart_font = pygame.font.SysFont(font, size)
restart_surface = restart_font.render('press SPACE to restart', True, color)
restart_rect = restart_surface.get_rect()
restart_rect.midtop = (frame_size_x/2, frame_size_y/1.4)
game_window.blit(restart_surface, restart_rect)
#gameover
def gameover():
global score
global red
gameoverFont = pygame.font.SysFont('arial.ttf',54)
gameoverSurf = gameoverFont.render('Game Over!',True,red)
gameoverRect = gameoverSurf.get_rect()
gameoverRect.midtop = (frame_size_x/2, frame_size_y/4)
game_window.fill(black)
game_window.blit(gameoverSurf, gameoverRect)
show_Score(0,red,'times',20)
restart(blue,'times',30)
pygame.display.flip() # 更新視窗
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
time.sleep(1) # 停留一秒
pygame.quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE:
# 更新全域變數到初始狀態
global snake_pos
global snake_body
global direction
global change_to
global speed
speed = 15
score = 0
snake_pos = [300, 300]
snake_body = [[300, 300], [290, 300], [280, 300]]
direction = 'UP'
change_to = direction
time.sleep(1) # 停留一秒
pygame.display.update()
main()
break
# 蛇
class Snake:
def __init__(self):
pass
# 確認當前移動方向 與 控制者執行方向 是否相反
def make_sure(self):
global direction
global change_to
if change_to == 'UP' and direction != 'DOWN':
direction = 'UP'
if change_to == 'DOWN' and direction != 'UP':
direction = 'DOWN'
if change_to == 'LEFT' and direction != 'RIGHT':
direction = 'LEFT'
if change_to == 'RIGHT' and direction != 'LEFT':
direction = 'RIGHT'
# 蛇身體增長
def growing(self):
global snake_body
global score
global food_spawn
global flag
snake_body.insert(0, list(snake_pos))
if snake_pos[0] == food_pos[0] and snake_pos[1] == food_pos[1]:
score += 1
flag = 1
food_spawn = False
else:
snake_body.pop()
# 移動
def moving(self):
global direction
global snack_pos
if direction == 'UP':
snake_pos[1] -= 10
if direction == 'DOWN':
snake_pos[1] += 10
if direction == 'LEFT':
snake_pos[0] -= 10
if direction == 'RIGHT':
snake_pos[0] += 10
# 吃的點點
class Food:
def __init__(self):
pass
# 更新食物位置
def spawing(self):
global food_spawn
global food_pos
if not food_spawn:
food_pos = [random.randrange(1, (frame_size_x//10)) * 10, random.randrange(1, (frame_size_y//10)) * 10] # 在視窗內隨機生成
food_spawn = True
# 主函式
def main():
pygame.init() # 初始化
global change_to
global snake_body
global snake_pos
global flag
while True:
game_window.fill(black) # 視窗顏色
for event in pygame.event.get(): # 事件
if event.type == pygame.QUIT: # 按叉離開
pygame.display.quit()
pygame.quit()
elif event.type == pygame.KEYDOWN: # 其餘按鍵
# 按 esc 跳出遊戲
if event.key == pygame.K_ESCAPE:
pygame.quit()
exit(0)
# w s a d 或 ↑ ↓ ← → 移動
if event.key == pygame.K_UP or event.key == ord('w'):
change_to = 'UP' # 先儲存到預計移動方向
if event.key == pygame.K_DOWN or event.key == ord('s'):
change_to = 'DOWN'
if event.key == pygame.K_LEFT or event.key == ord('a'):
change_to = 'LEFT'
if event.key == pygame.K_RIGHT or event.key == ord('d'):
change_to = 'RIGHT'
snake = Snake()
food = Food()
# 呼叫函示(確認方向、移動、吃到點伸長、更新點點位置)
snake.make_sure()
snake.moving()
snake.growing()
food.spawing()
# 畫出蛇身
for pos in snake_body:
# Snake body
# .draw.rect(視窗, 顏色, xy座標)
# xy座標 -> .Rect(x, y, size_x, size_y)
pygame.draw.rect(game_window, green, pygame.Rect(pos[0], pos[1], 10, 10))
# 畫出食物
pygame.draw.rect(game_window, white, pygame.Rect(food_pos[0], food_pos[1], 10, 10))
# Game Over 情況
# 撞到邊界
if snake_pos[0] < 0 or snake_pos[0] > frame_size_x-10:
gameover()
if snake_pos[1] < 0 or snake_pos[1] > frame_size_y-10:
gameover()
# 撞到蛇身
for block in snake_body[1:]:
if snake_pos[0] == block[0] and snake_pos[1] == block[1]:
gameover()
show_Score(1, white, 'consolas', 20)
# 更新視窗
pygame.display.update()
# 偵數( 控制難度用 )
global speed
accelerate()
fps_controller.tick(speed)
if __name__ == '__main__':
main()
pygame.quit()
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment