簡單用py寫了一個貪吃蛇游戲，有單人、雙人模式，比較簡單，適合初學者練手。本上每行重要的語句都有注釋，做了什么事一目了然
這里介紹雙人模式
單人模式戳這里：Python簡易貪吃蛇小游戲（單人模式）
一、游戲設計要點
1.游戲主體窗口（尺寸）、畫布（尺寸、位置）、按鈕（尺寸、位置）、文字（大小、顏色、位置）、圖像、背景音樂及相關響應函數（主要是鼠標移動及點擊的響應）的設計與合理排布
2.蛇與食物的類的屬性設計
3.蛇位置的更新（根據鍵盤輸入）、吃到食物加分的判定、食物的更新
4.蛇死亡的判定條件設計
二、主要模塊
1.pygame
2.sys
3.random
三、用到的類
1.Snake類，定義蛇頭蛇身元素的位置
2.Food類，定義食物元素的位置及單個元素的顏色
四、主要函數
1.new_food()，功能：生成一個不與蛇頭位置重合的食物并返回該食物對象
def new_food(head):
while True:
# 循環，不斷實例化new_food對象直到生成一個不與蛇頭重合的食物
new_food = Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255)))
# 若new_food和蛇頭重合則不創鍵
if new_food.x != head.x and new_food.y != head.y:
break
else:
continue
return new_food
2.draw_snake()、draw_food()函數，功能：繪制蛇與食物的圖像，傳入參數為顏色和對象：
# 在窗體中繪制貪吃蛇
# 形參：一個是顏色另一個是實例化對象
def draw_snake(color, object):
pygame.draw.circle(window, color, (object.x, object.y), 10)
# 在窗體中繪制食物
# 形參：實例化對象
def draw_food(food):
pygame.draw.circle(window, food.color, (food.x, food.y), 10)
3.show_end函數，功能：顯示雙人模式結束時的得分界面：
def show_end():
while True:
window.blit(init_background, (0, 0))
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit_end()
# 定義標題
pygame.display.set_caption("貪吃蛇大冒險")
# 定義提示文字
font = pygame.font.SysFont("simHei", 40)
fontsurf = font.render('游戲結束! 玩家1得分: %s 玩家2得分：%s' % (score1, score2), True, black)
window.blit(fontsurf, (150, 100))
button("返回主菜單", 370, 300, 200, 40, blue, brightred, into_game)
button("退出游戲", 370, 470, 200, 40, red, brightred, exit_end)
pygame.display.update()
clock.tick(20)
4.exit_end()函數，功能：在初始界面和游戲結束顯示得分界面點擊右上角的"×"時，直接退出整個游戲：
# 初始界面和游戲中途點擊退出游戲時
def exit_end():
pygame.quit()
sys.exit()
5.start_game_double()函數，功能：實現雙人正常模式：
def start_game_double():
# 播放音樂
pygame.mixer.music.play(-1)
# 定義存分數的全局變量
global score1
global score2
score1 = score2 = 0
# 初始化存放玩家鍵盤輸入運動方向的變量
run_direction1 = "right"
run_direction2 = "up"
# 初始化貪吃蛇運動方向的變量
run1 = run_direction1
run2 = run_direction2
# 實例化貪吃蛇和食物對象
head1 = Snake(randint(0, 30) * 20, randint(0, 20) * 20)
head2 = Snake(randint(0, 30) * 20, randint(0, 20) * 20)
# 實例化蛇身長度為2個單位
snake_body1 = [Snake(head1.x, head1.y + 20), Snake(head1.x, head1.y + 40)]
snake_body2 = [Snake(head2.x, head2.y + 20), Snake(head2.x, head2.y + 40)]
# 實例化食物列表，列表隨著其中食物被吃掉應該不斷縮短
food_list = [Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255)))]
for i in range(1,24):
food_list.append(Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255))))
# 實例化單個食物，方便循環內生成單個新食物
food = Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255)))
while True:
window.blit(background, (0,0))
# 監聽玩家鍵盤輸入的運動方向值，并根據輸入轉為up、down、right或left，方便程序中調用
# pygame.event.get()返回一個列表，存放本次game執行中程序遇到的一連串事件（按時間順序依次存放）
for event in pygame.event.get():
# pygame.QUIT事件是指用戶點擊窗口右上角的"×"
if event.type == pygame.QUIT:
# 顯示結果界面
show_end()
# 若事件類型是按下鍵盤，分↑ ↓ ← →四種情況討論
elif event.type == pygame.KEYDOWN:
# 若事件類型是按下鍵盤↑
# key是鍵值，表示按下去的鍵值是什么
if event.key == pygame.K_UP:
run_direction2 = "up"
# 若事件類型是按下鍵盤↓
if event.key == pygame.K_DOWN:
run_direction2 = "down"
# 若事件類型是按下鍵盤←
if event.key == pygame.K_LEFT:
run_direction2 = "left"
# 若事件類型是按下鍵盤→
if event.key == pygame.K_RIGHT:
run_direction2 = "right"
# 若事件類型是按下鍵盤↑
if event.key == ord('w'):
run_direction1 = "up"
# 若事件類型是按下鍵盤↓
if event.key == ord('s'):
run_direction1 = "down"
# 若事件類型是按下鍵盤←
if event.key == ord('a'):
run_direction1 = "left"
# 若事件類型是按下鍵盤→
if event.key == ord('d'):
run_direction1 = "right"
# 繪制初始化的25個食物圖像(24+1=25)
# 隨著該列表中的食物被吃掉，列表應該不斷pop以清除已經被吃的事物
for item in food_list:
draw_food(item)
# 繪制被貪吃蛇吃掉后新增的食物圖像
draw_food(food)
# 繪制蛇頭圖像
# 在繪制蛇頭之前先檢查是不是已經死亡，如果已死亡，則不繪制
# ！！不能通過die_flag判斷是否死亡因為每次循環一開頭die_flag都初始化為False
# 因此最好的方法是通過snake_body是否為空判斷
if len(snake_body1) != 0:
draw_snake(black, head1)
if len(snake_body2) != 0:
draw_snake(black, head2)
# 繪制蛇身圖像
for item in snake_body1:
draw_snake(blue, item)
for item in snake_body2:
draw_snake(green, item)
# 若蛇未死亡，則插入蛇頭位置到蛇身列表中
# 即：若蛇已死亡，則保持snake_body為空不變
if len(snake_body1) != 0:
snake_body1.insert(0, Snake(head1.x, head1.y))
if len(snake_body2) != 0:
snake_body2.insert(0, Snake(head2.x, head2.y))
# 判斷貪吃蛇原運動方向(run)與玩家鍵盤輸入的運動方向(run_direction)是否違反正常運動情況
if run1 == "up" and not run_direction1 == "down":
run1 = run_direction1
if run1 == "down" and not run_direction1 == "up":
run1 = run_direction1
if run1 == "left" and not run_direction1 == "right":
run1 = run_direction1
if run1 == "right" and not run_direction1 == "left":
run1 = run_direction1
if run2 == "up" and not run_direction2 == "down":
run2 = run_direction2
if run2 == "down" and not run_direction2 == "up":
run2 = run_direction2
if run2 == "left" and not run_direction2 == "right":
run2 = run_direction2
if run2 == "right" and not run_direction2 == "left":
run2 = run_direction2
# 根據玩家鍵入方向進行蛇頭坐標的更新
if run1 == "up":
head1.y -= 20
if run1 == "down":
head1.y += 20
if run1 == "left":
head1.x -= 20
if run1 == "right":
head1.x += 20
if run2 == "up":
head2.y -= 20
if run2 == "down":
head2.y += 20
if run2 == "left":
head2.x -= 20
if run2 == "right":
head2.x += 20
# 判斷兩條蛇是否死亡
# 初始化四個死亡標志為False
die_flag1 = die_flag2 = False
# 此時snake_body1,2中均已包含蛇頭
# snake_body1,2第一個元素是蛇頭，故不能從0號元素開始比較
# 因為該蛇蛇頭必然和自己重合
# 這里snake_body1,2均從1號元素開始
# 所以snake_body1[1:]+snake_body2[1:]是純粹存儲蛇身的列表
for body in snake_body1[1:]+snake_body2[1:]:
if head1.x == body.x and head1.y == body.y:
die_flag1 = True
if head2.x == body.x and head2.y == body.y:
die_flag2 = True
if die_flag1 == True or head1.x 0 or head1.x > 960 or head1.y 0 or head1.y > 600:
# 注意：這邊雖然蛇身列表清空，但head1對象仍存在
# 故必須要在上面的繪制蛇頭代碼前面加上if先判斷蛇是否死亡
snake_body1.clear()
if die_flag2 == True or head2.x 0 or head2.x > 960 or head2.y 0 or head2.y > 600:
die_flag2 = True
# 注意：這邊雖然蛇身列表清空，但head1對象仍存在
# 故必須要在上面的繪制蛇頭代碼前面加上if先判斷蛇是否死亡
snake_body2.clear()
# 若兩條蛇都死亡
# 同樣地，只能通過snake_body是否為空判斷蛇是否死亡
if len(snake_body1) == 0 and len(snake_body2) == 0:
show_end()
# 判斷蛇頭和食物坐標，若相等，則加分，并生成新的食物
# 定義標志，表明是否找到和蛇頭相等的食物
global flag1
global flag2
flag1 = flag2 = 0
# 如果蛇頭和食物重合
for item in food_list:
# 在蛇1沒死且蛇頭1和某一食物坐標相等的條件下
if len(snake_body1) != 0 and (head1.x == item.x and head1.y == item.y or head1.x == food.x and head1.y == food.y):
flag1 = 1
score1 += 1
# 彈出被吃掉的這個食物
food_list.pop(food_list.index(item))
# 再產生一個食物
food = new_food(head1)
# 把新食物插入food_list，下一次循環中會更新繪制食物全體
food_list.append(food)
break
# 在蛇2沒死的且蛇頭2和某一食物坐標相等的條件下
elif len(snake_body2) != 0 and head2.x == item.x and head2.y == item.y or head2.x == food.x and head2.y == food.y:
flag2 = 1
score2 += 1
# 彈出被吃掉的這個食物
food_list.pop(food_list.index(item))
# 再產生一個食物
food = new_food(head2)
# 把新食物插入food_list，下一次循環中會更新繪制食物全體
food_list.append(food)
break
# 蛇1必須沒死，否則pop會引發異常
if len(snake_body1) != 0 and flag1 == 0:
snake_body1.pop()
# 蛇2必須沒死，否則pop會引發異常
if len(snake_body2) != 0 and flag2 == 0:
snake_body2.pop ()
font = pygame.font.SysFont("simHei", 25)
mode_title1 = mode_title2 = font.render('正常模式', False, grey)
socre_title1 = font.render('得分: %s' % score1, False, grey)
socre_title2 = font.render('得分: %s' % score2, False, grey)
window.blit(mode_title1, (50, 30))
window.blit(socre_title1, (50, 65))
window.blit(mode_title2, (800, 30))
window.blit(socre_title2, (800, 65))
# 更新蛇頭蛇身和食物的數據
pygame.display.update()
# 通過幀率設置貪吃蛇速度
clock.tick(8)
6.start_kgame_double()函數，功能：實現雙人穿墻模式：
def start_kgame_double():
# 播放音樂
pygame.mixer.music.play(-1)
# 定義存分數的全局變量
global score1
global score2
score1 = score2 = 0
# 初始化存放玩家鍵盤輸入運動方向的變量
run_direction1 = "right"
run_direction2 = "up"
# 初始化貪吃蛇運動方向的變量
run1 = run_direction1
run2 = run_direction2
# 實例化貪吃蛇和食物對象
head1 = Snake(randint(0, 30) * 20, randint(0, 20) * 20)
head2 = Snake(randint(0, 30) * 20, randint(0, 20) * 20)
# 實例化蛇身長度為2個單位
snake_body1 = [Snake(head1.x, head1.y + 20), Snake(head1.x, head1.y + 40)]
snake_body2 = [Snake(head2.x, head2.y + 20), Snake(head2.x, head2.y + 40)]
# 實例化食物列表，列表隨著其中食物被吃掉應該不斷縮短
food_list = [Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255)))]
for i in range(1,24):
food_list.append(Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255))))
# 實例化單個食物，方便循環內生成單個新食物
food = Food(randint(0, 45) * 20, randint(0, 28) * 20, (randint(10, 255), randint(10, 255), randint(10, 255)))
while True:
window.blit(background, (0,0))
# 監聽玩家鍵盤輸入的運動方向值，并根據輸入轉為up、down、right或left，方便程序中調用
# pygame.event.get()返回一個列表，存放本次game執行中程序遇到的一連串事件（按時間順序依次存放）
for event in pygame.event.get():
# pygame.QUIT事件是指用戶點擊窗口右上角的"×"
if event.type == pygame.QUIT:
# 顯示結果界面
show_end()
# 若事件類型是按下鍵盤，分↑ ↓ ← →四種情況討論
elif event.type == pygame.KEYDOWN:
# 若事件類型是按下鍵盤↑
# key是鍵值，表示按下去的鍵值是什么
if event.key == pygame.K_UP:
run_direction2 = "up"
# 若事件類型是按下鍵盤↓
if event.key == pygame.K_DOWN:
run_direction2 = "down"
# 若事件類型是按下鍵盤←
if event.key == pygame.K_LEFT:
run_direction2 = "left"
# 若事件類型是按下鍵盤→
if event.key == pygame.K_RIGHT:
run_direction2 = "right"
# 若事件類型是按下鍵盤↑
if event.key == ord('w'):
run_direction1 = "up"
# 若事件類型是按下鍵盤↓
if event.key == ord('s'):
run_direction1 = "down"
# 若事件類型是按下鍵盤←
if event.key == ord('a'):
run_direction1 = "left"
# 若事件類型是按下鍵盤→
if event.key == ord('d'):
run_direction1 = "right"
# 繪制初始化的25個食物圖像(24+1=25)
# 隨著該列表中的食物被吃掉，列表應該不斷pop以清除已經被吃的事物
for item in food_list:
draw_food(item)
# 繪制被貪吃蛇吃掉后新增的食物圖像
draw_food(food)
# 繪制蛇頭圖像
# 在繪制蛇頭之前先檢查是不是已經死亡，如果已死亡，則不繪制
if len(snake_body1) != 0:
draw_snake(black, head1)
if len(snake_body2) != 0:
draw_snake(black, head2)
# 繪制蛇身圖像
for item in snake_body1:
draw_snake(blue, item)
for item in snake_body2:
draw_snake(green, item)
# 插入蛇頭位置到蛇身列表中
if len(snake_body1) != 0:
snake_body1.insert(0, Snake(head1.x, head1.y))
if len(snake_body2) != 0:
snake_body2.insert(0, Snake(head2.x, head2.y))
# 判斷貪吃蛇原運動方向(run)與玩家鍵盤輸入的運動方向(run_direction)是否違反正常運動情況
if run1 == "up" and not run_direction1 == "down":
run1 = run_direction1
if run1 == "down" and not run_direction1 == "up":
run1 = run_direction1
if run1 == "left" and not run_direction1 == "right":
run1 = run_direction1
if run1 == "right" and not run_direction1 == "left":
run1 = run_direction1
if run2 == "up" and not run_direction2 == "down":
run2 = run_direction2
if run2 == "down" and not run_direction2 == "up":
run2 = run_direction2
if run2 == "left" and not run_direction2 == "right":
run2 = run_direction2
if run2 == "right" and not run_direction2 == "left":
run2 = run_direction2
# 根據玩家鍵入方向進行蛇頭坐標的更新
if run1 == "up":
head1.y -= 20
if run1 == "down":
head1.y += 20
if run1 == "left":
head1.x -= 20
if run1 == "right":
head1.x += 20
if run2 == "up":
head2.y -= 20
if run2 == "down":
head2.y += 20
if run2 == "left":
head2.x -= 20
if run2 == "right":
head2.x += 20
# 實現穿墻
# 蛇頭穿出窗體共有8種情況
if head1.x 0:
head1.x = 960
if head1.x > 960:
head1.x = 0
if head1.y 0:
head1.y = 600
if head1.y > 600:
head1.y = 0
if head2.x 0:
head2.x = 960
if head2.x > 960:
head2.x = 0
if head2.y 0:
head2.y = 600
if head2.y > 600:
head2.y = 0
# 定義死亡標志位
die_flag1 = die_flag2 = False
for body in snake_body1[1:]+snake_body2[1:]:
if head1.x == body.x and head1.y == body.y:
die_flag1 = True
if head2.x == body.x and head2.y == body.y:
die_flag2 = True
if die_flag1 == True:
snake_body1.clear()
if die_flag2 == True:
snake_body2.clear()
# 若兩條蛇都死亡
if len(snake_body1) == 0 and len(snake_body2) == 0:
show_end()
# 判斷蛇頭和食物坐標，若相等，則加分，并生成新的食物
# 定義標志，表明是否找到和蛇頭相等的食物
global flag1
global flag2
flag1 = flag2 = 0
# 如果蛇頭和食物重合
for item in food_list:
# 在蛇1沒死且蛇頭1和某一食物坐標相等的條件下
if len(snake_body1) != 0 and (head1.x == item.x and head1.y == item.y or head1.x == food.x and head1.y == food.y):
flag1 = 1
score1 += 1
# 彈出被吃掉的這個食物
food_list.pop(food_list.index(item))
# 再產生一個食物
food = new_food(head1)
# 把新食物插入food_list，下一次循環中會更新繪制食物全體
food_list.append(food)
break
# 在蛇2沒死的且蛇頭2和某一食物坐標相等的條件下
elif len(snake_body2) != 0 and head2.x == item.x and head2.y == item.y or head2.x == food.x and head2.y == food.y:
flag2 = 1
score2 += 1
# 彈出被吃掉的這個食物
food_list.pop(food_list.index(item))
# 再產生一個食物
food = new_food(head2)
# 把新食物插入food_list，下一次循環中會更新繪制食物全體
food_list.append(food)
break
# 蛇1必須沒死，否則pop會引發異常
if len(snake_body1) != 0 and flag1 == 0:
snake_body1.pop()
# 蛇2必須沒死，否則pop會引發異常
if len(snake_body2) != 0 and flag2 == 0:
snake_body2.pop ()
font = pygame.font.SysFont("simHei", 25)
mode_title1 = mode_title2 = font.render('穿墻模式', False, grey)
socre_title1 = font.render('得分: %s' % score1, False, grey)
socre_title2 = font.render('得分: %s' % score2, False, grey)
window.blit(mode_title1, (50, 30))
window.blit(socre_title1, (50, 65))
window.blit(mode_title2, (800, 30))
window.blit(socre_title2, (800, 65))
# 更新蛇頭蛇身和食物的數據
pygame.display.update()
# 通過幀率設置貪吃蛇速度
clock.tick(8)
7.button()函數，功能：實現按鈕樣式設計和響應鼠標操作：
def button(msg, x, y, w, h, ic, ac, action=None):
# 獲取鼠標位置
mouse = pygame.mouse.get_pos()
# 獲取鼠標點擊情況
click = pygame.mouse.get_pressed()
if x + w > mouse[0] > x and y + h > mouse[1] > y:
pygame.draw.rect(window, ac, (x, y, w, h))
if click[0] == 1 and action != None:
action()
else:
pygame.draw.rect(window, ic, (x, y, w, h))
# 設置按鈕中的文字樣式和居中對齊
font = pygame.font.SysFont('simHei', 20)
smallfont = font.render(msg, True, white)
smallrect = smallfont.get_rect()
smallrect.center = ((x + (w / 2)), (y + (h / 2)))
window.blit(smallfont, smallrect)
8.into_game()函數，功能：實現游戲初始界面，選擇模式：
def into_game():
while True:
window.blit(init_background, (0, 0))
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit_end()
# 設置字體
font = pygame.font.SysFont("simHei", 50)
# 初始界面顯示文字
fontsurf = font.render('歡迎來到貪吃蛇大冒險!', True, black) # 文字
fontrect = fontsurf.get_rect()
fontrect.center = ((480), 200)
window.blit(fontsurf, fontrect)
button("正常模式", 370, 370, 200, 40, blue, brightred, start_game_double)
button("可穿墻模式", 370, 420, 200, 40, violte, brightred, start_kgame_double)
button("退出游戲", 370, 470, 200, 40, red, brightred, exit_end)
pygame.display.update()
clock.tick(20)
9.主函數，功能：初始化參數設定，進入游戲：
if __name__ == '__main__':
# 定義需要用到的顏色
white = (255, 255, 255)
red = (200, 0, 0)
green = (0, 128, 0)
blue = (0, 202, 254)
violte = (194, 8, 234)
brightred = (255, 0, 0)
brightgreen = (0, 255, 0)
black = (0, 0, 0)
grey = (129, 131, 129)
# 設計窗口
window = pygame.display.set_mode((960, 600))
# 定義標題
pygame.display.set_caption("貪吃蛇大冒險")
# 定義背景圖片
init_background = pygame.image.load("image/init_bgimg.jpg")
background = pygame.image.load("image/bgimg.jpg")
# 背景音樂
pygame.mixer.init()
pygame.mixer.music.load("background.mp3")
# 創建時鐘
clock = pygame.time.Clock()
# 初始化，自檢所有模塊是否完整
pygame.init()
# 初始界面
into_game()
注：其中的圖片、背景音樂需要自己找合適（尺寸要與窗口大小相適應）的，也可以參考我上傳的資源貪吃蛇雙人版源碼+圖片+音樂。
附：貪吃蛇 單人+雙人整合版源碼
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
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