lib/engine/gui/cursor.py

   1 from lib.lib.gui import Img
   2 from lib.gameobject import GameObject
   3
   4
   5 class MouseCursorFacade:
   6
   7     def show(self):
   8         if not self.eng.cfg.dev_cfg.functional_test:
   9             return self.cursor_img.show()
  10     def hide(self): return self.cursor_img.hide()
  11
  12
  13 class MouseCursor(GameObject, MouseCursorFacade):
  14
  15     def __init__(self, filepath, scale, color, hotspot):
  16         GameObject.__init__(self)
  17         MouseCursorFacade.__init__(self)
  18         if not filepath: return
  19         self.eng.lib.hide_std_cursor()
  20         self.cursor_img = Img(filepath, scale=scale, foreground=True)
  21         self.cursor_img.img.set_color(color)
  22         if self.eng.cfg.dev_cfg.functional_test:
  23             self.cursor_img.hide()
  24         self.hotspot_dx = scale[0] * (1 - 2 * hotspot[0])
  25         self.hotspot_dy = scale[2] * (1 - 2 * hotspot[1])
  26         self.eng.attach_obs(self.on_frame)
  27         self.eng.attach_obs(self.on_frame_unpausable)
  28
  29     def show_standard(self): self.eng.lib.show_std_cursor()
  30
  31     def hide_standard(self): self.eng.lib.hide_std_cursor()
  32
  33     def cursor_top(self):
  34         self.cursor_img.reparent_to(self.cursor_img.parent)
  35
  36     def __on_frame(self):
  37         mouse = self.eng.lib.mousepos
  38         if not mouse: return
  39         h_x = mouse[0] * self.eng.lib.aspect_ratio + self.hotspot_dx
  40         self.cursor_img.set_pos((h_x, mouse[1] - self.hotspot_dy))
  41
  42     def on_frame(self):
  43         if not self.eng.pause.paused: self.__on_frame()
  44
  45     def on_frame_unpausable(self):
  46         if self.eng.pause.paused: self.__on_frame()