import pygame
from .. import tools,setup
from .. import constants as C
from  .powerup import create_powerup

class Brick(pygame.sprite.Sprite):
    def __init__(self, x, y,brick_type,group,color=None,name = 'brick'):
        pygame.sprite.Sprite.__init__(self)
        self.x = x
        self.y = y
        self.brick_type = brick_type
        self.group = group
        self.name = name
        bright_frame_rects = [(16,0,16,16),(48,0,16,16)]
        dark_frame_rects = [(16,32,16,16),(48,32,16,16)]  # 抠图

        if not color:
            self.frame_rects = bright_frame_rects
        else:
            self.frame_rects = dark_frame_rects

        self.frames = []
        for frame_rect in self.frame_rects:
            self.frames.append(tools.get_image(setup.GRAPHICS['tile_set'],*frame_rect,(0,0,0),C.BRICK_MULTI))  # 遍历加载图片

        self.frame_index = 0
        self.image = self.frames[self.frame_index]
        self.rect = self.image.get_rect()
        self.rect.x = self.x
        self.rect.y = self.y    # 设置坐标与图片
        self.state = 'rest'
        self.gravity = C.GRAVITY


    def update(self):
        self.current_time = pygame.time.get_ticks()
        self.handel_states()

    def handel_states(self):
        if self.state == 'rest':
            self.rest()
        elif self.state == 'bumped':
            self.bumped()
        elif self.state == 'open':
            self.open()


    def rest(self):
        pass

    def go_bumped(self):
        self.y_vel = -7
        self.state = 'bumped'

    def bumped(self):
        self.rect.y += self.y_vel
        self.y_vel += self.gravity

        if self.rect.y > self.y + 10  :   # 如果大于初始位置回弹
            self.rect.y = self.y

            if self.brick_type == 0:
                self.state = 'rest'
            elif self.brick_type == 1:
                self.state = 'open'
            else:
                self.group.add(create_powerup(self.rect.centerx,self.rect.centery,self.brick_type))

    def open(self):
        self.frame_index = 1
        self.image = self.frames[self.frame_index]