The time is relatively rushed, and this material is relatively leaky, so I will take a look at it, the key depends on the operation.
Secondly, I'm getting married today, everyone bless me, and I wish everyone a happy April Fool's Day, hahaha~
It's still these few days when my nephew is clamoring to play big fish and eat small fish. As a qualified uncle, I must take action, although he does not After playing for two minutes, I feel that it is too ugly to play, but I think I should share it. After all, as experts, we still look at the doorway~
content
1. Game screen
2. Game material
3. Program introduction
"""
大鱼吃小鱼.py
注意程序的mouth对象,它并不是"隐藏"的,虽然它看不见。
小鱼碰到mouth会被“吃掉”。如果把mouth用hide命令设为隐藏，那么是无法获取到mouth的绑定盒，从而碰撞检测失效。
"""
4. Game code
1. The sprite object. This function computes a coordinate of the lower right corner of the rectangle and returns it.
from sprites import *
def calculate_pos(obj):
"""obj：精灵对象。这个函数计算矩形下右角的一个坐标并返回它。
"""
x,y = obj.position() # 角色的坐标
mx,my = mouse_position() # 鼠标指针的坐标
k = 1 if mx > x else -1 # 在右则为1，否则为-1
left,top,right,bottom = obj.bbox()# 获取绑定盒
w = right-left # 大鱼的宽度
h = top - bottom # 大鱼的高度
x0 = x + k * w//2.5 # 嘴巴大概的x坐标
y0 = y - h//12 # 嘴巴大概的y坐标
return x0,y0
2. Set game properties
width,height = 480,360
screen = Screen() # 新建宽高
screen.setup(width,height) # 设置宽高
screen.bgpic('res/underwater.png') # 设背景图
screen.title("图灵大海之大鱼吃小鱼")
3. Game Objects
fish_group = Group(tag='fish') # 新建组，标签为fish
fishes = ['res/fish1.png','res/fish2.png','res/fish3.png','res/crab-b.png']
# 由于下面的鱼的标签都是fish,所以会自动加入到fish_group中
for x in range(10):
x = random.randint(-200,200)
y = random.randint(-140,140)
f = Sprite(shape=random.choice(fishes),tag='fish',pos=(x,y))
f.scale(0.5)
[fish.setheading(random.randint(1,360)) for fish in fish_group]
m1 = Mouse(1) # 鼠标左键
fish = Sprite('res/fish1-a.png') # 实例化大鱼
fish.rotatemode(1) # 左右翻转
fishscale= 0.6
fish.scale(fishscale)
mouth = Sprite(shape='circle') # 实例化嘴巴，用于碰撞检测
mouthscale = 0.4
mouth.scale(mouthscale) # 缩放嘴巴大小
mouth.setalpha(0) # 把它设为透明，改为非0它会显示出来
clock = Clock() # 新建时钟对象
4. Game dynamic effects
while True:
for f in fish_group:
if f.isvisible():f.fd(1) # 在可见的情况下才移动
# 小鱼碰到嘴巴及单击鼠标则被吃掉，大鱼长大
if f.collide(mouth,0.5) and m1.down() :
fishscale += 0.01
fish.scale(fishscale) # 大鱼长大
mouthscale += 0.01
mouth.scale(mouthscale) # 嘴巴跟着加大
x = random.randint(-200,200)
y = random.randint(-140,140)
# 注意这里调用了reborn后，鱼会立即隐藏，3后后出现
# 在3秒内碰撞检测无效，所以鱼不能动
f.reborn(x,y,delay=3)
f.shape(random.choice(fishes))
f.bounce_on_edge()
fish.heading(mouse_pos()) # 大鱼跟随鼠标指针
x0,y0 = calculate_pos(fish) # 计算嘴巴的大概坐标
mouth.goto(x0,y0) # 嘴巴大这个坐标
md = fish.distance(mouse_pos()) # 计算鱼到鼠标指针距离
if md > 50:fish.fd(min(md,4)) # 如果距离大于50则游
# 张嘴与合嘴
if m1.down():
fish.shape('res/fish1-a.png')
else:
fish.shape('res/fish1-b.png')
screen.update()
clock.tick(60)
fish.shape('res/fish1-a.png')
else:
fish.shape('res/fish1-b.png')
screen.update()
clock.tick(60)
Five: experience summary
As a past person, whether I am an uncle or in Python, I still have a bit of a say. If you don’t dislike the spicy noodles, you can see that I have my nickname at the bottom ~ Python source code, and then PDF documents , etc., although they are all I have used before, as long as everyone does not dislike it, it is still somewhat useful.
