target is replaced by an `EntityArgs` instance with the given
arguments, after undergoing the following transformations:
1. Positional arguments are converted to keyword arguments.
1. If argument ``image`` is a format string, format it with
the entire argument dict. Coupled with patterned naming
practices for image resources, this could be used to define
a markup language for entity aesthetics.
aesthetics
2. For each field in `EntityArgs` that does not have a value in
the given arguments (positionally or keyword) obtain the value
from `parent`.
The returned `EntityArgs` instance can be called to return an
`Entity` instance with the transformed given arguments.
"""
def decorator(func):
def wrapped(*args, **kwargs):
kwargs.update(zip(EntityArgs._fields, args))
kwargs['image'] = kwargs['image'].format(kwargs)
entity = parent._replace(**kwargs)
entity.__call__ = partial(_Entity, **_Entity._asdict())
return entity
return wrapped
return decorator
@entity()
def Floor(walkable=True, image="floor-{texture}-{color}.png"):
"""Abstract walkable entity."""
def __init__(self, imgend, action=[]):
Entity.__init__(
self, 'smooth surface', True, 'floor-b-' + imgend, action=action)
def __init__(self, imgend, action=[]):
Entity.__init__(
self, 'wall', False, 'wall-horiz-' + imgend, action=action)
def __init__(self, imgend, action=[]):
Entity.__init__(
self, 'rough surface', True, 'floor-a-' + imgend, action=action)
