pmachines/scene.py

   1 from panda3d.core import AmbientLight, DirectionalLight, Point3, Texture, \
   2     TextPropertiesManager, TextNode, Spotlight, PerspectiveLens, BitMask32
   3 from panda3d.bullet import BulletPlaneShape, BulletGhostNode
   4 from direct.gui.OnscreenImage import OnscreenImage
   5 from direct.gui.OnscreenText import OnscreenText
   6 from direct.gui.DirectGui import DirectButton, DirectFrame
   7 from direct.gui.DirectGuiGlobals import FLAT, DISABLED, NORMAL
   8 from direct.showbase.DirectObject import DirectObject
   9 from pmachines.items.background import Background
  10 from pmachines.items.box import Box
  11 from pmachines.sidepanel import SidePanel
  12 from lib.engine.gui.cursor import MouseCursor
  13 from lib.lib.p3d.gfx import P3dGfxMgr
  14
  15
  16 class Scene(DirectObject):
  17
  18     def __init__(self, world, exit_cb, auto_close_instr):
  19         super().__init__()
  20         self._world = world
  21         self._exit_cb = exit_cb
  22         self._set_camera()
  23         self._cursor = MouseCursor(
  24             'assets/buttons/arrowUpLeft.png', (.04, 1, .04), (.5, .5, .5, 1),
  25             (.01, .01))
  26         self._set_gui()
  27         self._set_lights()
  28         self._set_input()
  29         self._set_mouse_plane()
  30         self.items = [Box(world, self._mouse_plane_node, 3, self.cb_inst)]
  31         self._paused = True
  32         self._item_active = None
  33         self.__store_state()
  34         if auto_close_instr:
  35             self.__restore_state()
  36         else:
  37             self._set_instructions()
  38         self._bg = Background()
  39         self._side_panel = SidePanel(world, self._mouse_plane_node, (-5, 4), (-3, 1), 1, self.items)
  40         self._scene_tsk = taskMgr.add(self.on_frame, 'on_frame')
  41
  42     def destroy(self):
  43         self._unset_gui()
  44         self._unset_lights()
  45         self._unset_input()
  46         self._unset_mouse_plane()
  47         [itm.destroy() for itm in self.items]
  48         self._bg.destroy()
  49         self._side_panel.destroy()
  50         self._cursor.destroy()
  51         taskMgr.remove(self._scene_tsk)
  52
  53     def _set_camera(self):
  54         base.camera.set_pos(0, -20, 0)
  55         base.camera.look_at(0, 0, 0)
  56
  57     def __load_img_btn(self, path, col):
  58         img = OnscreenImage('assets/buttons/%s.png' % path)
  59         img.set_transparency(True)
  60         img.set_color(col)
  61         img.detach_node()
  62         return img
  63
  64     def _set_gui(self):
  65         def load_images_btn(path, col):
  66             colors = {
  67                 'gray': [
  68                     (.6, .6, .6, 1),  # ready
  69                     (1, 1, 1, 1), # press
  70                     (.8, .8, .8, 1), # rollover
  71                     (.4, .4, .4, .4)],
  72                 'green': [
  73                     (.1, .68, .1, 1),
  74                     (.1, 1, .1, 1),
  75                     (.1, .84, .1, 1),
  76                     (.4, .1, .1, .4)]}[col]
  77             return [self.__load_img_btn(path, col) for col in colors]
  78         abl, abr = base.a2dBottomLeft, base.a2dBottomRight
  79         btn_info = [
  80             ('home', self.on_home, NORMAL, abl, 'gray'),
  81             ('information', self.on_information, DISABLED, abl, 'gray'),
  82             ('right', self.on_play, NORMAL, abr, 'green'),
  83             ('next', self.on_next, DISABLED, abr, 'gray'),
  84             ('previous', self.on_prev, DISABLED, abr, 'gray'),
  85             ('rewind', self.on_rewind, DISABLED, abr, 'gray')]
  86         num_l = num_r = 0
  87         btns = []
  88         for binfo in btn_info:
  89             imgs = load_images_btn(binfo[0], binfo[4])
  90             if binfo[3] == base.a2dBottomLeft:
  91                 sign, num = 1, num_l
  92                 num_l += 1
  93             else:
  94                 sign, num = -1, num_r
  95                 num_r += 1
  96             fcols = (.4, .4, .4, .14), (.3, .3, .3, .05)
  97             btn = DirectButton(
  98                 image=imgs, scale=.05, pos=(sign * (.06 + .11 * num), 1, .06),
  99                 parent=binfo[3], command=binfo[1], state=binfo[2], relief=FLAT,
 100                 frameColor=fcols[0] if binfo[2] == NORMAL else fcols[1],
 101                 rolloverSound=loader.load_sfx('assets/audio/sfx/rollover.ogg'),
 102                 clickSound=loader.load_sfx('assets/audio/sfx/click.ogg'))
 103             btn.set_transparency(True)
 104             btns += [btn]
 105         self.__home_btn, self.__info_btn, self.__right_btn, self.__next_btn, \
 106             self.__prev_btn, self.__rewind_btn = btns
 107
 108     def _unset_gui(self):
 109         btns = [
 110             self.__home_btn, self.__info_btn, self.__right_btn,
 111             self.__next_btn, self.__prev_btn, self.__rewind_btn]
 112         [btn.destroy() for btn in btns]
 113
 114     def _set_spotlight(self, name, pos, look_at, color, shadows=False):
 115         light = Spotlight(name)
 116         if shadows:
 117             light.setLens(PerspectiveLens())
 118         light_np = render.attach_new_node(light)
 119         light_np.set_pos(pos)
 120         light_np.look_at(look_at)
 121         light.set_color(color)
 122         render.set_light(light_np)
 123         return light_np
 124
 125     def _set_lights(self):
 126         alight = AmbientLight('alight')  # for ao
 127         alight.set_color((.15, .15, .15, 1))
 128         self._alnp = render.attach_new_node(alight)
 129         render.set_light(self._alnp)
 130         self._key_light = self._set_spotlight(
 131             'key light', (-5, -80, 5), (0, 0, 0), (2.8, 2.8, 2.8, 1))
 132         self._shadow_light = self._set_spotlight(
 133             'key light', (-5, -80, 5), (0, 0, 0), (.58, .58, .58, 1), True)
 134         self._shadow_light.node().set_shadow_caster(True, 2048, 2048)
 135         self._shadow_light.node().get_lens().set_film_size(2048, 2048)
 136         self._shadow_light.node().get_lens().set_near_far(1, 256)
 137         self._shadow_light.node().set_camera_mask(BitMask32(0x01))
 138
 139     def _unset_lights(self):
 140         for light in [self._alnp, self._key_light, self._shadow_light]:
 141             render.clear_light(light)
 142             light.remove_node()
 143
 144     def _set_input(self):
 145         self.accept('mouse1', self.on_click_l)
 146         self.accept('mouse1-up', self.on_release)
 147         self.accept('mouse3', self.on_click_r)
 148         self.accept('mouse3-up', self.on_release)
 149
 150     def _unset_input(self):
 151         for evt in ['mouse1', 'mouse1-up', 'mouse3', 'mouse3-up']:
 152             self.ignore(evt)
 153
 154     def _set_mouse_plane(self):
 155         shape = BulletPlaneShape((0, -1, 0), 0)
 156         #self._mouse_plane_node = BulletRigidBodyNode('mouse plane')
 157         self._mouse_plane_node = BulletGhostNode('mouse plane')
 158         self._mouse_plane_node.addShape(shape)
 159         #np = render.attachNewNode(self._mouse_plane_node)
 160         #self._world.attachRigidBody(self._mouse_plane_node)
 161         self._world.attach_ghost(self._mouse_plane_node)
 162
 163     def _unset_mouse_plane(self):
 164         self._world.remove_ghost(self._mouse_plane_node)
 165
 166     def _get_hits(self):
 167         if not base.mouseWatcherNode.has_mouse(): return []
 168         p_from, p_to = P3dGfxMgr.world_from_to(base.mouseWatcherNode.get_mouse())
 169         return self._world.ray_test_all(p_from, p_to).get_hits()
 170
 171     def _on_click(self, method):
 172         if self._paused:
 173             return
 174         for hit in self._get_hits():
 175             if hit.get_node() == self._mouse_plane_node:
 176                 pos = hit.get_hit_pos()
 177         for hit in self._get_hits():
 178             for item in [i for i in self.items if hit.get_node() == i.node]:
 179                 if not self._item_active:
 180                     self._item_active = item
 181                 getattr(item, method)(pos)
 182                 img = 'move' if method == 'on_click_l' else 'rotate'
 183                 self._cursor.set_image('assets/buttons/%s.png' % img)
 184
 185     def on_click_l(self):
 186         self._on_click('on_click_l')
 187
 188     def on_click_r(self):
 189         self._on_click('on_click_r')
 190
 191     def on_release(self):
 192         self._item_active = None
 193         [item.on_release() for item in self.items]
 194         self._cursor.set_image('assets/buttons/arrowUpLeft.png')
 195
 196     def on_aspect_ratio_changed(self):
 197         [item.on_aspect_ratio_changed() for item in self.items]
 198         self._side_panel.update(self.items)
 199
 200     def on_frame(self, task):
 201         hits = self._get_hits()
 202         pos = None
 203         for hit in self._get_hits():
 204             if hit.get_node() == self._mouse_plane_node:
 205                 pos = hit.get_hit_pos()
 206         hit_nodes = [hit.get_node() for hit in hits]
 207         if self._item_active:
 208             items_hit = [self._item_active]
 209         else:
 210             items_hit = [itm for itm in self.items if itm.node in hit_nodes]
 211         items_no_hit = [itm for itm in self.items if itm not in items_hit]
 212         [itm.on_mouse_on() for itm in items_hit]
 213         [itm.on_mouse_off() for itm in items_no_hit]
 214         if pos and self._item_active:
 215             self._item_active.on_mouse_move(pos)
 216         return task.cont
 217
 218     def cb_inst(self, item):
 219         self.items += [item]
 220
 221     def on_play(self):
 222         [itm.play() for itm in self.items]
 223
 224     def on_next(self):
 225         print('on_next')
 226
 227     def on_prev(self):
 228         print('on_prev')
 229
 230     def on_rewind(self):
 231         print('on_rewind')
 232
 233     def on_home(self):
 234         self._exit_cb()
 235
 236     def on_information(self):
 237         print('on_information')
 238
 239     def _set_instructions(self):
 240         mgr = TextPropertiesManager.get_global_ptr()
 241         for name in ['mouse_l', 'mouse_r']:
 242             graphic = OnscreenImage('assets/buttons/%s.png' % name)
 243             graphic.set_scale(.5)
 244             graphic.get_texture().set_minfilter(Texture.FTLinearMipmapLinear)
 245             graphic.get_texture().set_anisotropic_degree(2)
 246             mgr.set_graphic(name, graphic)
 247             graphic.set_z(-.2)
 248             graphic.set_transparency(True)
 249             graphic.detach_node()
 250         frm = DirectFrame(frameColor=(.4, .4, .4, .06),
 251                           frameSize=(-.6, .6, -.3, .3))
 252         font = base.loader.load_font('assets/fonts/Hanken-Book.ttf')
 253         font.clear()
 254         font.set_pixels_per_unit(60)
 255         font.set_minfilter(Texture.FTLinearMipmapLinear)
 256         font.set_outline((0, 0, 0, 1), .8, .2)
 257         txt = _('keep \5mouse_l\5 pressed to drag an item\n\n'
 258                 'keep \5mouse_r\5 pressed to rotate an item')
 259         self._txt = OnscreenText(
 260             txt, parent=frm, font=font, scale=0.06, fg=(.9, .9, .9, 1),
 261             align=TextNode.A_left)
 262         u_l = self._txt.textNode.get_upper_left_3d()
 263         l_r = self._txt.textNode.get_lower_right_3d()
 264         w, h = l_r[0] - u_l[0], u_l[2] - l_r[2]
 265         btn_scale = .05
 266         mar = .06  # margin
 267         z = h / 2 - font.get_line_height() * self._txt['scale'][1]
 268         z += (btn_scale + 2 * mar) / 2
 269         self._txt['pos'] = -w / 2, z
 270         u_l = self._txt.textNode.get_upper_left_3d()
 271         l_r = self._txt.textNode.get_lower_right_3d()
 272         c_l_r = l_r[0], l_r[1], l_r[2] - 2 * mar - btn_scale
 273         fsz = u_l[0] - mar, l_r[0] + mar, c_l_r[2] - mar, u_l[2] + mar
 274         frm['frameSize'] = fsz
 275         colors = [
 276             (.6, .6, .6, 1),  # ready
 277             (1, 1, 1, 1), # press
 278             (.8, .8, .8, 1), # rollover
 279             (.4, .4, .4, .4)]
 280         imgs = [self.__load_img_btn('exitRight', col) for col in colors]
 281         btn = DirectButton(
 282             image=imgs, scale=btn_scale,
 283             pos=(l_r[0] - btn_scale, 1, l_r[2] - mar - btn_scale),
 284             parent=frm, command=self.__on_close_instructions, extraArgs=[frm],
 285             relief=FLAT, frameColor=(.6, .6, .6, .08),
 286             rolloverSound=loader.load_sfx('assets/audio/sfx/rollover.ogg'),
 287             clickSound=loader.load_sfx('assets/audio/sfx/click.ogg'))
 288         btn.set_transparency(True)
 289
 290     def __store_state(self):
 291         btns = [
 292             self.__home_btn, self.__info_btn, self.__right_btn,
 293             self.__next_btn, self.__prev_btn, self.__rewind_btn]
 294         self.__btn_state = [btn['state'] for btn in btns]
 295         for btn in btns:
 296             btn['state'] = DISABLED
 297         [itm.store_state() for itm in self.items]
 298
 299     def __restore_state(self):
 300         btns = [
 301             self.__home_btn, self.__info_btn, self.__right_btn,
 302             self.__next_btn, self.__prev_btn, self.__rewind_btn]
 303         for btn, state in zip(btns, self.__btn_state):
 304             btn['state'] = state
 305         [itm.restore_state() for itm in self.items]
 306         self._paused = False
 307
 308     def __on_close_instructions(self, frm):
 309         frm.remove_node()
 310         self.__restore_state()