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from settings import *
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from bullet import Bullet
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class Dinosaur:
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X_ori = 80 # 恐龙的初始x坐标
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Y_ori = 310 # 恐龙的初始y坐标
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Y_ori_DUCK = 340 # 恐龙的初始低头y坐标
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ori_vy = 7 # 恐龙的初始跳跃速度
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def __init__(self, game_speed):
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# 读入setting中恐龙三种状态所属的列表图片
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self.duck_img = DUCKING
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self.run_img = RUNNING
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self.jump_img = JUMPING
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self.game_speed = game_speed
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self.gravity = 9.8
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self.hp = 2
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# 恐龙的三种状态：低头，奔跑，跳跃
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self.status = 1 # 状态机：0表示低头， 1表示奔跑， 2表示跳跃状态, 3表示往左移动， 4表示往右移动
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self.index = 0
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self.vy = self.ori_vy # 设定初始速度为ori_vy
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self.image = self.run_img[0] # 初始的跑步动作下标为0
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self.dino_rect = self.image.get_rect() # get_rect是获取图像的位置信息以及宽度高度
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self.dino_rect.x = self.X_ori
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self.dino_rect.y = self.Y_ori
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def update(self, userInput): # userInput <== 键盘输入
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# 三种状态不断切换
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if self.status == 0:
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self.duck()
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if self.status == 1:
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self.run()
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if self.status == 2:
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self.jump()
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if self.index >= 10:
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self.index = 0
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# 读入按键，要额外判定恐龙是否处于跳跃状态，不然就会连跳
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if userInput[pygame.K_UP] and not self.status == 2:
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self.status = 2
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elif userInput[pygame.K_DOWN] and not self.status == 2:
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self.status = 0
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elif not (userInput[pygame.K_DOWN] or self.status == 2):
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self.status = 1
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def duck(self):
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self.image = self.duck_img[self.index // 5]
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self.dino_rect = self.image.get_rect()
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self.dino_rect.x = self.X_ori
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self.dino_rect.y = self.Y_ori_DUCK
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self.index += 1
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def run(self):
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self.image = self.run_img[self.index // 5]
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self.dino_rect = self.image.get_rect()
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self.dino_rect.x = self.X_ori
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self.dino_rect.y = self.Y_ori
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self.index += 1
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def jump(self):
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self.image = self.jump_img
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if self.status == 2:
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# 抛物线公式
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self.dino_rect.y -= self.vy * 4 # 在空中下降,注意y轴是向下的，所以需要是-=
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self.vy -= 0.5 # 加速度为-0.5
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if self.vy < - self.ori_vy: # 恢复初始跳跃速度
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self.status = 1
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self.vy = self.ori_vy
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# 定义draw函数以刷新画面
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def draw(self, SCREEN):
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SCREEN.blit(self.image, (self.dino_rect.x, self.dino_rect.y))
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# 死亡动画
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def draw_death(self,SCREEN):
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SCREEN.blit(DEAD, (self.dino_rect.x, self.dino_rect.y))
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def showHp(self):
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font = pygame.font.SysFont(['方正粗黑宋简体', 'microsoftsansserif'], 30)
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text = font.render("Hp: " + str(self.hp), True, (0, 0, 0))
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SCREEN.blit(text, (self.dino_rect.x, self.dino_rect.y - 20))
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def showHit(self):
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font = pygame.font.SysFont(['方正粗黑宋简体', 'microsoftsansserif'], 30)
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text = font.render("OAO", True, (0, 0, 0))
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SCREEN.blit(text, (self.dino_rect.x, self.dino_rect.y - 50))
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def showDead(self):
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font = pygame.font.SysFont(['方正粗黑宋简体', 'microsoftsansserif'], 30)
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text = font.render("TAT", True, (0, 0, 0))
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SCREEN.blit(text, (self.dino_rect.x, self.dino_rect.y - 50)) |
