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【作品展示】

 

【作品介绍】

有截图功能，按回车键可截图。

 

【作品源代码】

from arcade import *
from PIL import Image
import random

#设置窗体宽和高
SCREEN_WIDTH = 900
SCREEN_HEIGHT = 600
#设置窗体标题
SCREEN_TITLE = "大鱼吃小鱼"
#设置玩家角色每次移动的速度
MOVEMENT_SPEED = 4
#向左的造型索引
LEFT = 0
#向右的造型索引
RIGHT = 1

class Player(Sprite):
    def __init__(self,image):
        super().__init__(image)
        self.center_x = SCREEN_WIDTH // 2
        self.center_y = SCREEN_HEIGHT // 2

        self.append_texture(load_texture("resource/player.png",mirrored=True,scale=1))

        #玩家角色的大小
        self.size = 2
    def update(self):
        super().update()

        if self.left < 0:
            self.left = 0
        elif self.right > SCREEN_WIDTH:
            self.right = SCREEN_WIDTH

        if self.top > SCREEN_HEIGHT:
            self.top = SCREEN_HEIGHT
        elif self.bottom < 0:
            self.bottom = 0

    #进化
    def evolution(self,score):
        #if score >= 4:
            #self.size = 10
        if score >= 3:
            self.size = 8
        elif score >= 2:
            self.size = 6
        elif score >= 1:
            self.size = 4

class Enemy(Sprite):
    def __init__(self,image):
        super().__init__(image)
        #随机选择敌人的生成位置
        face = random.choice(["left","right"])
        #随机选择敌人的移动速度
        speed = random.choice([1,2,3,4,5])
        if face == "left":
            self.center_x = SCREEN_WIDTH + 60
            self.change_x = -speed
        elif face == "right":
            self.center_x =  -60
            #设置敌人的向右造型
            self.append_texture(load_texture(image, mirrored=True, scale=1))
            self.set_texture(RIGHT)
            self.change_x = speed
        self.center_y = random.randint(0,SCREEN_HEIGHT)


class MyGame(arcade.Window):
    def __init__(self,width,height,title):
        super().__init__(width,height,title)
        self.setup()

    def setup(self):
        #用pillow 调整背景图片大小以适配窗体宽高
        Image.open("resource/sea.png").resize((SCREEN_WIDTH,SCREEN_HEIGHT)).save("resource/new_sea.png")
        #设置背景图片
        self.background = Sprite("resource/new_sea.png")
        self.background.center_x = SCREEN_WIDTH // 2
        self.background.center_y = SCREEN_HEIGHT // 2
        #添加玩家角色
        self.player_sprite = Player("resource/player.png")
        self.player_sprite_list = SpriteList()
        self.player_sprite_list.append(self.player_sprite)



        self.fishes = {"resource/黄鱼.png":1, "resource/绿鱼.png":3,
                       "resource/红鱼.png":5, "resource/紫鱼.png":7, "resource/蓝鱼.png":9}

        self.enemy_sprite_list = SpriteList()
        self.total_time = 0
        self.last_time = 0
        self.create_num = 1

        self.score = 0

    def on_draw(self):
        start_render()

        self.background.draw()
        self.player_sprite_list.draw()
        self.enemy_sprite_list.draw()

        #显示分数
        draw_text(f"score:{self.score}",0,SCREEN_HEIGHT-20,color.WHITE,font_name = ("simhei","PingFang"),font_size = 20)

    def on_update(self, delta_time):
        self.total_time += delta_time
        #总时间到某个点后提高生成速度
        if int(self.total_time) != int(self.last_time) and int(self.total_time) % 300 == 0:
            self.create_num +=1
        #每隔1秒创建敌人
        if int (self.total_time)  != int(self.last_time) and int(self.total_time) %1 == 0:
            self.create_enemy()
            self.last_time = self.total_time

        self.player_sprite_list.update()
        self.enemy_sprite_list.update()

        for enemy in self.enemy_sprite_list:
            if enemy.center_x < -60 or enemy.center_x > SCREEN_WIDTH + 60:
                enemy.喵()

        #玩家角色与电脑角色的碰撞检测
        hit_list = check_for_collision_with_list(self.player_sprite,self.enemy_sprite_list)
        if hit_list:
            for hit in hit_list:
                if self.player_sprite.size > hit.size:
                    hit.喵()
                    self.score += 1
#                elif self.player_sprite.size < hit.size:
#                    self.player_sprite.喵()
                else:
                    self.player_sprite.喵()
        
        self.player_sprite.evolution(self.score)

    def on_key_press(self,symbol,modifiers):
        if symbol == key.UP:
            self.player_sprite.change_y = MOVEMENT_SPEED
        elif symbol == key.DOWN:
            self.player_sprite.change_y = -MOVEMENT_SPEED
        elif symbol == key.LEFT:
            self.player_sprite.change_x = -MOVEMENT_SPEED
            self.player_sprite.set_texture(LEFT)
        elif symbol == key.RIGHT:
            self.player_sprite.change_x = MOVEMENT_SPEED
            self.player_sprite.set_texture(RIGHT)
        elif symbol == key.RETURN:
            image = get_image(0,0,SCREEN_WIDTH,SCREEN_HEIGHT)
            image.save('screenshot.png')

    def on_key_release(self,symbol,modifiers):
        if symbol == key.UP or symbol == key.DOWN:
            self.player_sprite.change_y = 0
        elif symbol == key.LEFT or symbol == key.RIGHT:
            self.player_sprite.change_x = 0

    #创建敌人的方法
    def create_enemy(self):
        for i in range(self.create_num):
            #随机选择敌人的图片素材
            fish = random.choice(list(self.fishes.keys()))
            size = self.fishes[fish]
            enemy_sprite = Enemy(fish)
            enemy_sprite.size = size
            self.enemy_sprite_list.append(enemy_sprite)




if __name__ == '__main__':
    game = MyGame(SCREEN_WIDTH,SCREEN_HEIGHT,SCREEN_TITLE)
    run()

 

【提示】

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