blender-geometry-script/api/static/simulation.py

46 wiersze
1.9 KiB
Python

import bpy
import inspect
import typing
def simulation_zone(block: typing.Callable):
"""
Create a simulation input/output block.
> Only available in Blender 3.6+.
"""
def wrapped(*args, **kwargs):
from geometry_script.api.node_mapper import OutputsList, set_or_create_link
from geometry_script.api.state import State
from geometry_script.api.types import Type, socket_class_to_data_type
signature = inspect.signature(block)
# setup zone
simulation_in = State.current_node_tree.nodes.new(bpy.types.GeometryNodeSimulationInput.__name__)
simulation_out = State.current_node_tree.nodes.new(bpy.types.GeometryNodeSimulationOutput.__name__)
simulation_in.pair_with_output(simulation_out)
# clear state items
for item in simulation_out.state_items:
simulation_out.state_items.remove(item)
# create state items from block signature
state_items = {}
for param in [*signature.parameters.values()][1:]:
state_items[param.name] = (param.annotation, param.default, None, None)
for i, arg in enumerate(state_items.items()):
simulation_out.state_items.new(socket_class_to_data_type(arg[1][0].socket_type), arg[0].replace('_', ' ').title())
set_or_create_link(kwargs[arg[0]] if arg[0] in kwargs else args[i], simulation_in.inputs[i])
step = block(*[Type(o) for o in simulation_in.outputs[:-1]])
if isinstance(step, Type):
step = (step,)
for i, result in enumerate(step):
State.current_node_tree.links.new(result._socket, simulation_out.inputs[i])
if len(simulation_out.outputs[:-1]) == 1:
return Type(simulation_out.outputs[0])
else:
return OutputsList({o.name.lower().replace(' ', '_'): Type(o) for o in simulation_out.outputs[:-1]})
return wrapped