ya2/engine/phys.py

   1 # from logging import info
   2 # from ya2.gameobject import Colleague
   3 # from ya2.lib.bullet.bullet import (
   4 #     BulletPhysWorld, BulletTriangleMesh, BulletTriangleMeshShape,
   5 #     BulletRigidBodyNode, BulletGhostNode)
   6
   7
   8 # PhysWorld = BulletPhysWorld
   9 # TriangleMesh = BulletTriangleMesh
  10 # TriangleMeshShape = BulletTriangleMeshShape
  11 # RigidBodyNode = BulletRigidBodyNode
  12 # GhostNode = BulletGhostNode
  13
  14
  15 # class CollInfo:
  16
  17 #     def __init__(self, node, time):
  18 #         self.node = node
  19 #         self.time = time
  20
  21
  22 # class PhysFacade:
  23
  24 #     def attach_rigid_body(self, rbnode):
  25 #         return self.root.attach_rigid_body(rbnode)
  26
  27 #     def remove_rigid_body(self, rbnode):
  28 #         return self.root.remove_rigid_body(rbnode)
  29
  30 #     def attach_ghost(self, gnode): return self.root.attach_ghost(gnode)
  31 #     def remove_ghost(self, gnode): return self.root.remove_ghost(gnode)
  32 #     def attach_vehicle(self, vehicle): return self.root.attach_vehicle(vehicle)
  33 #     def remove_vehicle(self, vehicle): return self.root.remove_vehicle(vehicle)
  34
  35 #     def ray_test_all(self, from_pos, to_pos, mask=None):
  36 #         return self.root.ray_test_all(from_pos, to_pos, mask)
  37
  38 #     def ray_test_closest(self, from_pos, to_pos, mask=None):
  39 #         return self.root.ray_test_closest(from_pos, to_pos, mask)
  40
  41
  42 # class PhysMgr(Colleague, PhysFacade):
  43
  44 #     def __init__(self, mediator):
  45 #         Colleague.__init__(self, mediator)
  46 #         self.collision_objs = []  # objects to be processed
  47 #         self.__obj2coll = {}  # {obj: [(node, coll_time), ...], ...}
  48 #         self.root = None
  49 #         self.__debug_np = None
  50 #         PhysFacade.__init__(self)
  51
  52 #     def reset(self):
  53 #         self.collision_objs = []
  54 #         self.__obj2coll = {}
  55 #         self.root = PhysWorld()
  56 #         self.root.set_gravity((0, 0, -8.5))
  57 #         self.root.init_debug()
  58
  59 #     def start(self):
  60 #         self.eng.attach_obs(self.on_frame, 2)
  61
  62 #     def on_frame(self):
  63 #         self.root.do_phys(self.eng.lib.last_frame_dt, 10, 1/180.0)
  64 #         self.__do_collisions()
  65
  66 #     def ray_test_closest(self, top, bottom):
  67 #         #TODO: differs from PhysFacade's signature
  68 #         return self.root.ray_test_closest(top, bottom)
  69
  70 #     def add_collision_obj(self, node): self.collision_objs += [node]
  71
  72 #     def remove_collision_obj(self, node):
  73 #         try: self.collision_objs.remove(node)
  74 #         except ValueError:
  75 #             info("can't remove collision object %s" % node)
  76 #             # it may happen with weapons during pause
  77
  78 #     def stop(self):
  79 #         self.root.stop()
  80 #         self.root = None
  81 #         self.eng.detach_obs(self.on_frame)
  82
  83 #     def __do_collisions(self):
  84 #         to_clear = self.collision_objs[:]
  85 #         # identical collisions are ignored for .25 seconds
  86 #         for obj in self.collision_objs:
  87 #             if obj not in self.__obj2coll: self.__obj2coll[obj] = []
  88 #             # for contact in self.root.get_contacts(obj):
  89 #             # this doesn't work in 1.9, the following works
  90 #             # odd, this doesn't work too
  91 #             # for contact in self.root.wld.contact_test(obj).get_contacts():
  92 #             result = self.root._wld.contact_test(obj)
  93 #             #TODO: access a protected member
  94 #             for contact in result.get_contacts():
  95 #                 self.__process_contact(obj, contact.get_node0(), to_clear)
  96 #                 self.__process_contact(obj, contact.get_node1(), to_clear)
  97 #         for obj in to_clear:
  98 #             if obj in self.__obj2coll:  # it may be that it isn't here e.g.
  99 #                 # when you fire a rocket while you're very close to the prev
 100 #                 # car and the rocket is removed suddenly
 101 #                 for coll in self.__obj2coll[obj]:
 102 #                     if self.eng.curr_time - coll.time > .25:
 103 #                         self.__obj2coll[obj].remove(coll)
 104
 105 #     def __process_contact(self, obj, node, to_clear):
 106 #         if node == obj: return
 107 #         if obj in to_clear: to_clear.remove(obj)
 108 #         if node in [coll.node for coll in self.__obj2coll[obj]]: return
 109 #         self.__obj2coll[obj] += [CollInfo(node, self.eng.curr_time)]
 110 #         self.eng.event.notify('on_collision', obj, node)
 111
 112 #     def toggle_dbg(self):
 113 #         if self.root: self.root.toggle_dbg()