pmachines/scene.py

   1 from panda3d.core import AmbientLight, DirectionalLight, Point3
   2 from panda3d.bullet import BulletPlaneShape, BulletGhostNode
   3 from direct.gui.OnscreenImage import OnscreenImage
   4 from direct.gui.DirectGui import DirectButton
   5 from direct.gui.DirectGuiGlobals import FLAT, DISABLED, NORMAL
   6 from direct.showbase.DirectObject import DirectObject
   7 from pmachines.items.background import Background
   8 from pmachines.items.box import Box
   9 from lib.engine.gui.cursor import MouseCursor
  10
  11
  12 class Scene(DirectObject):
  13
  14     def __init__(self, world):
  15         super().__init__()
  16         self._world = world
  17         self._set_camera()
  18         self._cursor = MouseCursor(
  19             'assets/buttons/arrowUpLeft.png', (.04, 1, .04), (.5, .5, .5, 1),
  20             (.01, .01))
  21         self._set_gui()
  22         self._set_lights()
  23         self._set_input()
  24         self._set_mouse_plane()
  25         Background()
  26         self.items = [Box(world, self._mouse_plane_node, 3, self.cb_inst)]
  27         taskMgr.add(self.on_frame, 'on_frame')
  28
  29     def _set_camera(self):
  30         base.camera.set_pos(0, -20, 0)
  31         base.camera.look_at(0, 0, 0)
  32
  33     def _set_gui(self):
  34         def load_img_btn(path, col):
  35             img = OnscreenImage('assets/buttons/%s.png' % path)
  36             img.set_transparency(True)
  37             img.set_color(col)
  38             img.detach_node()
  39             return img
  40         def load_images_btn(path, col):
  41             colors = {
  42                 'gray': [
  43                     (.6, .6, .6, 1),  # ready
  44                     (1, 1, 1, 1), # press
  45                     (.8, .8, .8, 1), # rollover
  46                     (.4, .4, .4, .4)],
  47                 'green': [
  48                     (.1, .68, .1, 1),
  49                     (.1, 1, .1, 1),
  50                     (.1, .84, .1, 1),
  51                     (.4, .1, .1, .4)]}[col]
  52             return [load_img_btn(path, col) for col in colors]
  53         abl, abr = base.a2dBottomLeft, base.a2dBottomRight
  54         btn_info = [
  55             ('home', self.on_home, DISABLED, abl, 'gray'),
  56             ('information', self.on_information, DISABLED, abl, 'gray'),
  57             ('right', self.on_play, NORMAL, abr, 'green'),
  58             ('next', self.on_next, DISABLED, abr, 'gray'),
  59             ('previous', self.on_prev, DISABLED, abr, 'gray'),
  60             ('rewind', self.on_rewind, DISABLED, abr, 'gray')]
  61         num_l = num_r = 0
  62         for binfo in btn_info:
  63             imgs = load_images_btn(binfo[0], binfo[4])
  64             if binfo[3] == base.a2dBottomLeft:
  65                 sign, num = 1, num_l
  66                 num_l += 1
  67             else:
  68                 sign, num = -1, num_r
  69                 num_r += 1
  70             fcols = (.4, .4, .4, .14), (.3, .3, .3, .05)
  71             btn = DirectButton(
  72                 image=imgs, scale=.05, pos=(sign * (.06 + .11 * num), 1, .06),
  73                 parent=binfo[3], command=binfo[1], state=binfo[2], relief=FLAT,
  74                 frameColor=fcols[0] if binfo[2] == NORMAL else fcols[1],
  75                 rolloverSound=loader.load_sfx('assets/audio/sfx/rollover.ogg'),
  76                 clickSound=loader.load_sfx('assets/audio/sfx/click.ogg'))
  77             btn.set_transparency(True)
  78
  79     def _set_directional_light(self, name, hpr, color):
  80         light = DirectionalLight(name)
  81         light_np = render.attach_new_node(light)
  82         light_np.set_hpr(*hpr)
  83         light.set_color(color)
  84         render.set_light(light_np)
  85
  86     def _set_lights(self):
  87         alight = AmbientLight('alight')  # for ao
  88         alight.set_color((.4, .4, .4, 1))
  89         alnp = render.attach_new_node(alight)
  90         render.set_light(alnp)
  91         self._set_directional_light('key light', (315, -60, 0),
  92                                     (3.6, 3.6, 3.6, 1))
  93         self._set_directional_light('fill light', (195, -30, 0),
  94                                     (.4, .4, .4, 1))
  95         self._set_directional_light('rim light', (75, -30, 0), (.3, .3, .3, 1))
  96
  97     def _set_input(self):
  98         self.accept('mouse1', self.on_click_l)
  99         self.accept('mouse1-up', self.on_release)
 100         self.accept('mouse3', self.on_click_r)
 101         self.accept('mouse3-up', self.on_release)
 102
 103     def _set_mouse_plane(self):
 104         shape = BulletPlaneShape((0, -1, 0), 1)
 105         #self._mouse_plane_node = BulletRigidBodyNode('mouse plane')
 106         self._mouse_plane_node = BulletGhostNode('mouse plane')
 107         self._mouse_plane_node.addShape(shape)
 108         #np = render.attachNewNode(self._mouse_plane_node)
 109         #self._world.attachRigidBody(self._mouse_plane_node)
 110         self._world.attachGhost(self._mouse_plane_node)
 111
 112     def _get_hits(self):
 113         if not base.mouseWatcherNode.has_mouse(): return []
 114         p_from, p_to = Point3(), Point3()    # in camera coordinates
 115         base.camLens.extrude(base.mouseWatcherNode.get_mouse(), p_from, p_to)
 116         p_from = render.get_relative_point(base.cam, p_from)  # global coords
 117         p_to = render.get_relative_point(base.cam, p_to)  # global coords
 118         return self._world.ray_test_all(p_from, p_to).get_hits()
 119
 120     def _on_click(self, method):
 121         for hit in self._get_hits():
 122             if hit.get_node() == self._mouse_plane_node:
 123                 pos = hit.get_hit_pos()
 124         for hit in self._get_hits():
 125             for item in [i for i in self.items if hit.get_node() == i.node]:
 126                 getattr(item, method)(pos)
 127                 img = 'move' if method == 'on_click_l' else 'rotate'
 128                 self._cursor.set_image('assets/buttons/%s.png' % img)
 129
 130     def on_click_l(self):
 131         self._on_click('on_click_l')
 132
 133     def on_click_r(self):
 134         self._on_click('on_click_r')
 135
 136     def on_release(self):
 137         [item.on_release() for item in self.items]
 138         self._cursor.set_image('assets/buttons/arrowUpLeft.png')
 139
 140     def on_frame(self, task):
 141         hits = self._get_hits()
 142         pos = None
 143         for hit in self._get_hits():
 144             if hit.get_node() == self._mouse_plane_node:
 145                 pos = hit.get_hit_pos()
 146         hit_nodes = [hit.get_node() for hit in hits]
 147         items_hit = [itm for itm in self.items if itm.node in hit_nodes]
 148         items_no_hit = [itm for itm in self.items if itm not in items_hit]
 149         [itm.on_mouse_on() for itm in items_hit]
 150         [itm.on_mouse_off() for itm in items_no_hit]
 151         if pos:
 152             [itm.on_mouse_move(pos) for itm in self.items]
 153         return task.cont
 154
 155     def cb_inst(self, item):
 156         self.items += [item]
 157
 158     def on_play(self):
 159         [itm.play() for itm in self.items]
 160
 161     def on_next(self):
 162         print('on_next')
 163
 164     def on_prev(self):
 165         print('on_prev')
 166
 167     def on_rewind(self):
 168         print('on_rewind')
 169
 170     def on_home(self):
 171         print('on_home')
 172
 173     def on_information(self):
 174         print('on_information')