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import pygame
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from code.engine.a_star import AStar
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from code.engine.animation import Animation
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from code.engine.sprite import Sprite
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from code.game_global import g
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class Walker:
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"""
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行走者，8个方向的行走图
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"""
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config = {
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0: [56, 96, 6, 9],
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1: [40, 68, 6, 4],
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2: [36, 64, 6, 4],
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4: [96, 112, 15, 4]
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}
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def __init__(self, walker_id, mx, my, face=0):
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"""
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mx:人物在地图小格子里的坐标
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my:人物在地图小格子里的坐标
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"""
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self.mx = mx
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self.my = my
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self.x = mx * 16
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self.y = my * 16
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self.walker_id = walker_id
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# 根据walker_id获取不同的cell_w,cell_h的参数
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self.cell_w = self.config[walker_id][0]
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self.cell_h = self.config[walker_id][1]
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self.offset_y = self.config[walker_id][2]
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self.column = self.config[walker_id][3]
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# 渲染坐标
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self.render_x = int(self.x - self.cell_w / 2) + 8
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self.render_y = self.y - self.cell_h + self.offset_y + 16
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# 加载动画
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self.walker_img = pygame.image.load(f'./resource/PicLib/all_char/{walker_id}.png').convert_alpha()
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self.animations = []
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for i in range(8):
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animation = Animation(self.render_x, self.render_y, self.walker_img, self.cell_w, self.cell_h, 700, True,
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[self.column * i, self.column * (i + 1) - 1])
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self.animations.append(animation)
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# 初始化面向
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self.face = face # 0上 1下 2左 3右 4上左 5下右 6下左 7上右
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self.walking = False # false静止状态 true行走状态
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# 角色下一步需要去的格子
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self.next_mx = 0
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self.next_my = 0
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self.step = 2 # 每帧移动的像素
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# 寻路路径
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self.path = []
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# 当前路径下标
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self.path_index = 0
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def logic(self):
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# 更新动画
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if self.walking:
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self.animations[self.face].update()
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# 移动
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self.move()
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# 自动走下一步
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self.auto_goto()
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def render(self, map_x, map_y):
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"""
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渲染行走者
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"""
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render_x = map_x + self.render_x
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render_y = map_y + self.render_y
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if render_x < -self.cell_w or render_x > 640 or render_y < -self.cell_h or render_y > 480:
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"""
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人物在屏幕外，不需要渲染
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"""
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return
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if self.walking:
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self.animations[self.face].draw_src(g.screen, render_x, render_y)
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else:
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Sprite.draw(g.screen, self.walker_img, render_x, render_y, 0, self.face, self.cell_w, self.cell_h)
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def goto(self, mx, my):
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"""
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:param mx: 地图小格子中的目标点
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:param my: 地图小格子中的目标点
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"""
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self.next_mx = mx
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self.next_my = my
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self.walking = True
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# 设置人物面向
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if self.next_mx == self.mx and self.next_my < self.my: # 上
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self.face = 0
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elif self.next_mx == self.mx and self.next_my > self.my: # 下
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self.face = 1
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elif self.next_mx < self.mx and self.next_my == self.my: # 左
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self.face = 2
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elif self.next_mx > self.mx and self.next_my == self.my: # 右
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self.face = 3
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elif self.next_mx < self.mx and self.next_my < self.my: # 上左
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self.face = 4
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elif self.next_mx > self.mx and self.next_my > self.my: # 下右
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self.face = 5
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elif self.next_mx < self.mx and self.next_my > self.my: # 下左
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self.face = 6
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elif self.next_mx > self.mx and self.next_my < self.my: # 上右
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self.face = 7
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else:
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self.walking = False
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def move(self):
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if not self.walking:
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return
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dest_x = self.next_mx * 16
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dest_y = self.next_my * 16
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# 向目标位置靠近
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if self.x < dest_x:
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self.x += self.step
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if self.x >= dest_x:
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self.x = dest_x
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elif self.x > dest_x:
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self.x -= self.step
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if self.x <= dest_x:
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self.x = dest_x
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if self.y < dest_y:
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self.y += self.step
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if self.y >= dest_y:
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self.y = dest_y
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elif self.y > dest_y:
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self.y -= self.step
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if self.y <= dest_y:
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self.y = dest_y
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# 更新渲染坐标
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self.render_x = int(self.x - self.cell_w / 2) + 8
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self.render_y = self.y - self.cell_h + self.offset_y + 16
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# 角色当前位置
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self.mx = int(self.x / 16)
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self.my = int(self.y / 16)
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# 到达了目标点
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if self.x == dest_x and self.y == dest_y:
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self.walking = False
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def find_path(self, map2d, end_point):
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"""
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:param map2d: 地图
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:param end_point: 寻路终点
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"""
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if end_point[0] == self.mx and end_point[1] == self.my:
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return
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start_point = (self.mx, self.my)
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path = AStar(map2d, start_point, end_point).start()
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if path is None:
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return
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self.path = path
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self.path_index = 0
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def move_by_path(self, path):
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"""
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通过已经准备好的路径，直接移动
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"""
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self.path = path
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self.path_index = 0
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def auto_goto(self):
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"""
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自动寻路
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"""
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if self.walking:
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return
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# 如果寻路走到终点了
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if self.path_index == len(self.path):
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self.path = []
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self.path_index = 0
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# self.walking = False
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# 如果没走到终点，就往下一个格子走
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else:
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self.goto(self.path[self.path_index].x, self.path[self.path_index].y)
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self.path_index += 1
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# self.walking = True
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def set_point(self, mx, my):
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"""
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设置位置
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"""
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self.mx = mx
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self.my = my
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self.x = mx * 16
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self.y = my * 16
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# 渲染坐标
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self.render_x = int(self.x - self.cell_w / 2) + 8
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self.render_y = self.y - self.cell_h + self.offset_y + 16
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