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SceneManager.py
71 lines (56 loc) · 2.02 KB
/
SceneManager.py
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from Node import *
class SceneManagerError(Exception):
def __init__(self, value):
self.value = value
def __str__(self):
return repr(self.value)
class SceneManager:
def __init__(self):
self.root_node = Node(1)
self.root_node.set_name("scene_root")
self.node_enumerator = 1
self.active_camera = -1
self.camera_lsit = []
self.render_lsit = []
def add_scene_node(self, node, parent=0):
if parent == 0:
self.root_node.add_child(node)
else:
if self.get_node_from_ID(parent.get_ID()) is None:
raise SceneManagerError("Could not add node with parent who is not in the scene !")
else:
parent.add_child(node)
def get_root_node(self):
return self.root_node
def get_node_from_ID(self, id, start=0):
if start == 0:
start = self.root_node
if start.get_ID() == id:
return start
else:
children_list = start.get_children()
for child in children_list:
return self.get_node_from_ID(id, child)
def get_node_from_name(self, name, start=0):
if start == 0:
start = self.root_node
if start.get_name() == name:
return start
else:
children_list = start.get_children()
for child in children_list:
return self.get_node_from_name(name, child)
def remove_all(self):
self.root_node.remove_all()
del self.camera_list[:]
slef.active_camera = -1
def register_video_driver(self, driver):
self.video_driver = driver
def get_active_camera(self):
if self.active_camera != -1:
return self.camera_list[active_camera]
def register_node_for_rendering(self,node):
render_list.append(node)
def create_node(self):
self.node_enumerator += 1
return Node(self.node_enumerator)