def build_object(object, world: esper.World, window_options, draw2entity):
logger = logging.getLogger(__name__)
mxCell = object[0]
mxGeometry = mxCell[0]
# Get X, Y coordinates
x = float(mxGeometry.attrib.get('x', 0))
y = float(mxGeometry.attrib.get('y', 0))
width = float(mxGeometry.attrib.get('width', 0))
height = float(mxGeometry.attrib.get('height', 0))
pos = Position(x, y, 0, width, height)
x += (width // 2)
y += (height // 2)
# Get the Map for simulation or create one
# Entity 1 is the simulation entity
if world.has_component(1, Map):
simulation_map = world.component_for_entity(1, Map)
else:
simulation_map = Map()
world.add_component(1, simulation_map)
# Get POI tag
if 'tag' in object.attrib:
tag = object.attrib['tag']
else:
tag = 'POI_' + str(len(simulation_map.pois))
logger.warning(f'POI ({x}, {y}) with no TAG. Using {tag}')
simulation_map.pois[tag] = (x, y)
# Alternatively display the POI
if object.attrib.get('display', False):
skeleton = Skeleton(object.attrib['id'], mxCell.attrib['style'], tag)
world.create_entity(pos, skeleton)
return {}, [], {}
def ParseFile(lines: Iterable[str], world: esper.World):
working = world.create_entity()
world.add_component(working, Passport(True))
for line in lines:
words = line.strip().split()
if not words:
working = world.create_entity()
world.add_component(working, Passport(True))
for word in words:
tag, value = word.split(":")
world.add_component(working, FIELD_TO_COMPONENT[tag](value))
class Main:
def __init__(self):
self.world = World()
self.world.add_processor(DisplayProcessor(), priority=30)
self.world.add_processor(InputProcessor(), priority=20)
self.world.add_processor(GameStateProcessor(), priority=100)
self.world.create_entity(GameState.TITLE_SCREEN)
def core_game_loop(self):
while True:
self.world.process()
def asteroid(world: esper.World) -> int:
global asteroid_counter
asteroid_counter += 1
return world.create_entity(
Renderable("#", colors.OBJECT_JUNK),
Selectable(),
Destructable(20, 100, 0),
Velocity(0, 0),
Name("Asteroid", f"AST-{asteroid_counter:05d}")
)
def enemy_fighter(world: esper.World) -> int:
return world.create_entity(
Position(10, 10),
Renderable("V", colors.OBJECT_ENEMY),
Velocity(0, 0),
Acceleration(0, 0, 0.001),
Selectable(),
Destructable(10, 20, 20),
Damageable(),
Behaviour(),
Name("Some wanker", "WNK-80085")
)
def player_ship(world: esper.World) -> int:
return world.create_entity(
Player(),
Position(0, 0),
Renderable("@", colors.OBJECT_PLAYER),
Velocity(0, 0),
Acceleration(0, 0, 0.001),
Selectable(),
Destructable(1000, 1000, 1000),
Damageable(),
Behaviour(),
Name("Player ship", "PLR-12345")
)
def build_object(cell, world: World, window_options, draw2entity):
(components, style) = mxCellDecoder.parse_object(cell, window_options)
ent = world.create_entity()
# Custom components
for key, val in cell.attrib.items():
if key.startswith('component_'):
component_name = key[10:] # removes "component_" from the name
init_values = json.loads(val)
component = dynamic_importer.init_component(
component_name, init_values)
components.append(component)
print(components)
for c in components:
world.add_component(ent, c)
return {style['id']: [ent, style]}, [(ent, style['id'])], {}
def build_simulation_objects(content_root: Element, world: esper.World,
window_options: WindowOptions,
available_builders: dict):
""" Parses the XML Elements into esper entities.
Parsing is done by transforming Element's attributes and annotations into components.
There are 2 types of objects:
1. Untyped objects -- Do not possess any type annotation. Used for building walls, for example.
They have only basic components (e.g. Collision, Position, ...)
2. Typed objects -- Possess a type annotation. Enclosed in <object> tags in the XML file.
Parsed by a specific builder according to the type.
Not all typed objects are transformed into entities.
RETURNS:
draw2entity: dict -- Maps ids from drawio to entities in the simulation.
objects: list -- List of typed objects that have been transformed into entities.
interactive: dict -- Maps what entities can be interacted with (e.g. picked up).
Key is the entity name, value is the entity id
"""
logger = logging.getLogger(__name__)
logger.info(f'Available builders: {available_builders}')
draw2entity = {}
objects: List[Tuple[int, str]] = []
interactive = {}
# If any object in the XML has dependencies that appear after it in the XML
# The builder can return a DependencyNotFound error, causing the cell to be deferred.
# Deferred cells are re-evaluated after the first pass is complete.
deferred: List[Element] = []
# 1st pass
for cell in content_root:
if cell.tag == 'mxCell' and 'style' in cell.attrib:
(components,
style) = mxCellDecoder.parse_mxCell(cell, window_options)
ent = world.create_entity()
for c in components:
world.add_component(ent, c)
draw2entity[style['id']] = [ent, style]
if cell.tag == 'object':
cell_type = cell.attrib['type']
try:
pending_updates = \
available_builders[cell_type].__dict__['build_object'](cell, world, window_options, draw2entity)
draw2entity.update(pending_updates[0])
objects += pending_updates[1]
interactive.update(pending_updates[2])
except DependencyNotFound as err:
deferred.append(cell)
logger.debug(f'Cell {cell.tag} deferred - {err}')
# 2nd pass
for cell in deferred:
if cell.tag == 'mxCell' and 'style' in cell.attrib:
(components,
style) = mxCellDecoder.parse_mxCell(cell, window_options)
ent = world.create_entity()
for c in components:
world.add_component(ent, c)
draw2entity[style['id']] = [ent, style]
if cell.tag == 'object':
cell_type = cell.attrib['type']
try:
pending_updates = \
available_builders[cell_type].__dict__['build_object'](cell, world, window_options, draw2entity)
draw2entity.update(pending_updates[0])
objects += pending_updates[1]
interactive.update(pending_updates[2])
except DependencyNotFound as err:
logger.error(f'Cell {cell.tag} failed processing - {err}')
return draw2entity, objects, interactive
def build_simulation_objects(content_root, batch: pyglet.graphics.Batch,
world: esper.World, window_options):
# Create Walls
draw2entity = {}
interactive = {}
objects = []
windowSize = window_options[0]
for cell in content_root:
if cell.tag == 'mxCell' and 'style' in cell.attrib:
(components,
style) = mxCellDecoder.parse_mxCell(cell, batch, window_options)
ent = world.create_entity()
for c in components:
world.add_component(ent, c)
draw2entity[style['id']] = [ent, style]
if cell.tag == 'object':
if cell.attrib['type'] == 'robot':
(components,
style) = mxCellDecoder.parse_object(cell, batch,
window_options)
ent = world.create_entity()
# Custom components
for key, val in cell.attrib.items():
if key.startswith('component_'):
component_name = key[
10:] # removes "component_" from the name
init_values = json.loads(val)
component = dynamic_importer.init_component(
component_name, init_values)
components.append(component)
for c in components:
world.add_component(ent, c)
draw2entity[style['id']] = [ent, style]
objects.append((ent, style['id']))
elif cell.attrib['type'] == 'pickable':
skeleton = copy.copy(cell)
(components,
style) = mxCellDecoder.parse_object(cell, batch,
window_options)
pick = Pickable(float(cell.attrib['weight']),
cell.attrib['name'], skeleton)
components.append(pick)
ent = world.create_entity()
for c in components:
world.add_component(ent, c)
interactive[style['name']] = ent
elif cell.attrib['type'] == 'path':
mxCell = cell[0]
points = Path.from_mxCell(mxCell, windowSize[1])
obj = mxCell.attrib.get('source', None)
(ent, _) = draw2entity.get(obj, (None, None))
if ent is None:
print(f"Path origin ({obj}) not found. Trying target.")
else:
print(f"Adding path to entity {ent}")
world.add_component(ent, Path(points))
elif cell.attrib['type'] == 'map-path':
mxCell = cell[0]
points = Path.from_mxCell(mxCell, windowSize[1])
objId = cell.attrib.get('origin', '')
key = cell.attrib.get('key', '')
if key == '':
print(f"Map entry without key. Using default value")
key = 'Default'
(ent, _) = draw2entity.get(objId, (None, None))
if ent is None:
print(f"Path origin ({obj}) not found. Trying target.")
else:
if world.has_component(ent, Map):
map = world.component_for_entity(ent, Map)
if key == 'Default':
key += str(len(map))
map.paths[key] = points
else:
if key == 'Default':
key += '0'
newMap = Map({key: points})
world.add_component(ent, newMap)
else:
print("Unrecognized object", cell)
return draw2entity, objects, interactive
