195 lines
8.2 KiB
Python
195 lines
8.2 KiB
Python
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from game_object import GameObject
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class GameRoom:
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"""
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A collection of GameObjects within a GameWorld. Can be used to limit scope
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of object updates, collisions, etc.
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"""
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camera_marker_name = ''
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"If set, camera will move to marker with this name when room entered"
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camera_follow_player = False
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"If True, camera will follow player while in this room"
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left_edge_warp_dest_name, right_edge_warp_dest_name = '', ''
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"If set, warp to room OR marker with this name when edge crossed"
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top_edge_warp_dest_name, bottom_edge_warp_dest_name = '', ''
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warp_edge_bounds_obj_name = ''
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"Object whose art's bounds should be used as our \"edges\" for above"
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serialized = ['name', 'camera_marker_name', 'left_edge_warp_dest_name',
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'right_edge_warp_dest_name', 'top_edge_warp_dest_name',
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'bottom_edge_warp_dest_name', 'warp_edge_bounds_obj_name',
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'camera_follow_player']
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"List of string names of members to serialize for this Room class."
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log_changes = False
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"Log changes to and from this room"
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def __init__(self, world, name, room_data=None):
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self.world = world
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self.name = name
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self.pre_first_update_run = False
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# dict of objects by name:object
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self.objects = {}
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if not room_data:
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return
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# restore serialized properties
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# TODO: this is copy-pasted from GameObject, find a way to unify
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# TODO: GameWorld.set_data_for that takes instance, serialized list, data dict
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for v in self.serialized:
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if not v in room_data:
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self.world.app.dev_log("Serialized property '%s' not found for room %s" % (v, self.name))
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continue
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if not hasattr(self, v):
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setattr(self, v, None)
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# match type of variable as declared, eg loc might be written as
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# an int in the JSON so preserve its floatness
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if getattr(self, v) is not None:
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src_type = type(getattr(self, v))
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setattr(self, v, src_type(room_data[v]))
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else:
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setattr(self, v, room_data[v])
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# find objects by name and add them
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for obj_name in room_data.get('objects', []):
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self.add_object_by_name(obj_name)
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def pre_first_update(self):
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self.reset_edge_warps()
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def reset_edge_warps(self):
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self.edge_obj = self.world.objects.get(self.warp_edge_bounds_obj_name, None)
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# no warping if we don't know our bounds
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if not self.edge_obj:
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return
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edge_dest_name_suffix = '_name'
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def set_edge_dest(dest_property):
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# property name to destination name
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dest_name = getattr(self, dest_property)
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# get room OR object with name
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dest_room = self.world.rooms.get(dest_name, None)
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dest_obj = self.world.objects.get(dest_name, None)
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# derive member name from serialized property name
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member_name = dest_property.replace(edge_dest_name_suffix, '')
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setattr(self, member_name, dest_room or dest_obj or None)
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for pname in ['left_edge_warp_dest_name', 'right_edge_warp_dest_name',
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'top_edge_warp_dest_name', 'bottom_edge_warp_dest_name']:
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set_edge_dest(pname)
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def set_camera_marker_name(self, marker_name):
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if not marker_name in self.world.objects:
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self.world.app.log("Couldn't find camera marker with name %s" % marker_name)
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return
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self.camera_marker_name = marker_name
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if self is self.world.current_room:
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self.use_camera_marker()
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def use_camera_marker(self):
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if not self.camera_marker_name in self.world.objects:
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return
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cam_mark = self.world.objects[self.camera_marker_name]
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self.world.camera.set_loc_from_obj(cam_mark)
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def entered(self, old_room):
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"Run when the player enters this room."
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if self.log_changes:
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self.world.app.log('Room "%s" entered' % self.name)
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# set camera if marker is set
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if self.world.room_camera_changes_enabled:
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self.use_camera_marker()
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if self.camera_follow_player:
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self.world.enable_player_camera_lock()
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else:
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self.world.disable_player_camera_lock()
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# tell objects in this room player has entered so eg spawners can fire
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for obj in self.objects.values():
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obj.room_entered(self, old_room)
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def exited(self, new_room):
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"Run when the player exits this room."
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if self.log_changes:
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self.world.app.log('Room "%s" exited' % self.name)
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# tell objects in this room player has exited
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for obj in self.objects.values():
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obj.room_exited(self, new_room)
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def add_object_by_name(self, obj_name):
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"Add object with given name to this room."
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obj = self.world.objects.get(obj_name, None)
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if not obj:
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self.world.app.log("Couldn't find object named %s" % obj_name)
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return
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self.add_object(obj)
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def add_object(self, obj):
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"Add object (by reference) to this room."
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self.objects[obj.name] = obj
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obj.rooms[self.name] = self
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def remove_object_by_name(self, obj_name):
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"Remove object with given name from this room."
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obj = self.world.objects.get(obj_name, None)
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if not obj:
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self.world.app.log("Couldn't find object named %s" % obj_name)
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return
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self.remove_object(obj)
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def remove_object(self, obj):
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"Remove object (by reference) from this room."
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if obj.name in self.objects:
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self.objects.pop(obj.name)
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else:
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self.world.app.log("GameRoom %s doesn't contain GameObject %s" % (self.name, obj.name))
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if self.name in obj.rooms:
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obj.rooms.pop(self.name)
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else:
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self.world.app.log("GameObject %s not found in GameRoom %s" % (obj.name, self.name))
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def get_dict(self):
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"Return a dict that GameWorld.save_to_file can dump to JSON"
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object_names = list(self.objects.keys())
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d = {'class_name': type(self).__name__, 'objects': object_names}
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# serialize whatever other vars are declared in self.serialized
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for prop_name in self.serialized:
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if hasattr(self, prop_name):
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d[prop_name] = getattr(self, prop_name)
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return d
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def _check_edge_warp(self, game_object):
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# bail if no bounds or edge warp destinations set
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if not self.edge_obj:
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return
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if not self.left_edge_warp_dest and not self.right_edge_warp_dest and not self.top_edge_warp_dest and not self.bottom_edge_warp_dest:
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return
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if game_object.warped_recently():
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return
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px, py = game_object.x, game_object.y
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if self.edge_obj.is_point_inside(px, py):
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return
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left, top, right, bottom = self.edge_obj.get_edges()
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# which edge are we beyond?
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warp_dest = None
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if top > py > bottom and px < left:
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warp_dest = self.left_edge_warp_dest
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elif top > py > bottom and px > right:
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warp_dest = self.right_edge_warp_dest
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elif left < px < right and py > top:
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warp_dest = self.top_edge_warp_dest
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elif left < px < right and py < bottom:
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warp_dest = self.bottom_edge_warp_dest
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if not warp_dest:
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return
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if issubclass(type(warp_dest), GameRoom):
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self.world.change_room(warp_dest.name)
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elif issubclass(type(warp_dest), GameObject):
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# TODO: change room or not? use_marker_room flag a la WarpTrigger?
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game_object.set_loc(warp_dest.x, warp_dest.y)
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game_object.last_warp_update = self.world.updates
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def update(self):
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if self is self.world.current_room:
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self._check_edge_warp(self.world.player)
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def destroy(self):
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if self.name in self.world.rooms:
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self.world.rooms.pop(self.name)
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# remove references to us in each of our objects
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for obj in self.objects.values():
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obj.rooms.pop(self.name)
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self.objects = {}
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