def __init__(self):
# Reference to the engine that it exists in
self.engine = None
self.systems = list()
self.entity_manager = EntityManager()
# for world behavior
self.scripts = list()
# add the fundamental systems
self.add_system(PhysicsSystem())
self.add_system(RenderSystem())
# bounds - negative values means no bounds
self.width = -1
self.height = -1
self.origin = Vector2(0, 0)
self.loading_scene = False
def __init__(self):
# Reference to the engine that it exists in
self.engine = None
self.systems = list()
self.entity_manager = EntityManager()
# for world behavior
self.scripts = list()
# add the fundamental systems
self.add_system(PhysicsSystem())
self.add_system(RenderSystem())
# bounds - negative values means no bounds
self.width = -1
self.height = -1
self.origin = Vector2(0, 0)
self.loading_scene = False
class World(object):
__metaclass__ = ABCMeta
def __init__(self):
# Reference to the engine that it exists in
self.engine = None
self.systems = list()
self.entity_manager = EntityManager()
# for world behavior
self.scripts = list()
# add the fundamental systems
self.add_system(PhysicsSystem())
self.add_system(RenderSystem())
# bounds - negative values means no bounds
self.width = -1
self.height = -1
self.origin = Vector2(0, 0)
self.loading_scene = False
# this function is a wrapper that is used to detect if we are loading the scene of the world
def start_scene_loading(self):
self.loading_scene = True
# call the overrided scene loading function
self.load_scene()
self.loading_scene = False
@abstractmethod
def load_scene(self):
"""
Setup the world scene by specifying how/where to create
game objects.
"""
# initiate things when the game goes back to this level
def resume(self):
pass
# Do not override
def _take_input(self, event):
for s in self.scripts:
s.take_input(event)
# run script input for entities
for e in self.entity_manager.entities:
for s in e.scripts:
s.take_input(event)
def get_entity_by_tag(self, tag):
for e in self.entity_manager.entities:
if e.tag == tag:
return e
return None
# create an empty entity (no components)
def create_entity(self):
e = self.entity_manager.create_entity()
e.world = self
return e
def create_game_object(self, image_surface):
entity = GameObject(image_surface)
entity.world = self
self.entity_manager.add(entity)
# if the entity was created outside the load_scene then do
# a dynamic insertion to the RenderSystem's scene
if not self.loading_scene:
self.get_system(
RenderSystem.tag).dynamic_insertion_to_scene(entity)
return entity
def create_renderable_object(self, image_surface, pivot=None):
entity = RenderableObject(image_surface, pivot)
entity.world = self
self.entity_manager.add(entity)
if not self.loading_scene:
self.get_system(
RenderSystem.tag).dynamic_insertion_to_scene(entity)
return entity
def create_box_collider_object(self, width, height):
entity = BoxColliderObject(width, height)
entity.world = self
self.entity_manager.add(entity)
return entity
def create_circle_collider_object(self, radius):
entity = CircleColliderObject(radius)
entity.world = self
self.entity_manager.add(entity)
return entity
def destroy_entity(self, entity):
# remove the entity from the scene
render_system = self.get_system(RenderSystem.tag)
render_system.remove_from_scene(entity)
self.entity_manager.remove_entity(entity)
def add_system(self, system):
system.world = self
# add to the front - so the physics and render systems are
# the last systems to do their logic.
self.systems.insert(0, system)
def remove_system(self, tag):
for system in self.systems:
if system.tag == tag:
self.systems.remove(system)
return
def get_system(self, tag):
for system in self.systems:
if system.tag == tag:
return system
return None
def add_script(self, script):
script.world = self
self.scripts.append(script)
def remove_script(self, script):
self.scripts.remove(script)
def get_script(self, script_name):
i = 0
for s in self.scripts:
# script found
if s.script_name == script_name:
return s
i += 1
return None
# Have each system process the entities
def run(self):
for s in self.systems:
s.process(self.entity_manager.entities)
# Run script updates - Reverse iteration to handle removals of entities.
for i in xrange(len(self.entity_manager.entities) - 1, -1, -1):
e = self.entity_manager.entities[i]
for s in e.scripts:
s.update()
# World scripts - Reverse iteration to handle removals of entities.
for i in xrange(len(self.scripts) - 1, -1, -1):
s = self.scripts[i]
s.update()
# determine if the world has bounds
def is_bounded(self):
return self.width > 0 and self.height > 0
class World (object):
__metaclass__ = ABCMeta
def __init__(self):
# Reference to the engine that it exists in
self.engine = None
self.systems = list()
self.entity_manager = EntityManager()
# for world behavior
self.scripts = list()
# add the fundamental systems
self.add_system(PhysicsSystem())
self.add_system(RenderSystem())
# bounds - negative values means no bounds
self.width = -1
self.height = -1
self.origin = Vector2(0, 0)
self.loading_scene = False
# this function is a wrapper that is used to detect if we are loading the scene of the world
def start_scene_loading(self):
self.loading_scene = True
# call the overrided scene loading function
self.load_scene()
self.loading_scene = False
@abstractmethod
def load_scene(self):
"""
Setup the world scene by specifying how/where to create
game objects.
"""
# initiate things when the game goes back to this level
def resume(self):
pass
# Do not override
def _take_input(self, event):
for s in self.scripts:
s.take_input(event)
# run script input for entities
for e in self.entity_manager.entities:
for s in e.scripts:
s.take_input(event)
def get_entity_by_tag(self, tag):
for e in self.entity_manager.entities:
if e.tag == tag:
return e
return None
# create an empty entity (no components)
def create_entity(self):
e = self.entity_manager.create_entity()
e.world = self
return e
def create_game_object(self, image_surface):
entity = GameObject(image_surface)
entity.world = self
self.entity_manager.add(entity)
# if the entity was created outside the load_scene then do
# a dynamic insertion to the RenderSystem's scene
if not self.loading_scene:
self.get_system(RenderSystem.tag).dynamic_insertion_to_scene(entity)
return entity
def create_renderable_object(self, image_surface, pivot=None):
entity = RenderableObject(image_surface, pivot)
entity.world = self
self.entity_manager.add(entity)
if not self.loading_scene:
self.get_system(RenderSystem.tag).dynamic_insertion_to_scene(entity)
return entity
def create_box_collider_object(self, width, height):
entity = BoxColliderObject(width, height)
entity.world = self
self.entity_manager.add(entity)
return entity
def create_circle_collider_object(self, radius):
entity = CircleColliderObject(radius)
entity.world = self
self.entity_manager.add(entity)
return entity
def destroy_entity(self, entity):
# remove the entity from the scene
render_system = self.get_system(RenderSystem.tag)
render_system.remove_from_scene(entity)
self.entity_manager.remove_entity(entity)
def add_system(self, system):
system.world = self
# add to the front - so the physics and render systems are
# the last systems to do their logic.
self.systems.insert(0, system)
def remove_system(self, tag):
for system in self.systems:
if system.tag == tag:
self.systems.remove(system)
return
def get_system(self, tag):
for system in self.systems:
if system.tag == tag:
return system
return None
def add_script(self, script):
script.world = self
self.scripts.append(script)
def remove_script(self, script):
self.scripts.remove(script)
def get_script(self, script_name):
i = 0
for s in self.scripts:
# script found
if s.script_name == script_name:
return s
i += 1
return None
# Have each system process the entities
def run(self):
for s in self.systems:
s.process(self.entity_manager.entities)
# Run script updates - Reverse iteration to handle removals of entities.
for i in xrange(len(self.entity_manager.entities) - 1, -1, -1):
e = self.entity_manager.entities[i]
for s in e.scripts:
s.update()
# World scripts - Reverse iteration to handle removals of entities.
for i in xrange(len(self.scripts)-1, -1, -1):
s = self.scripts[i]
s.update()
# determine if the world has bounds
def is_bounded(self):
return self.width > 0 and self.height > 0