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# SPDX-License-Identifier: GPL-2.0-or-later
import bpy, re
from mathutils import Vector
from ...utils import org, strip_org, make_mechanism_name, make_deformer_name
from ...utils import MetarigError
bilateral_suffixes = ['.L','.R']
def orient_bone( cls, eb, axis, scale = 1.0, reverse = False ):
v = Vector((0,0,0))
setattr(v,axis,scale)
if reverse:
tail_vec = v @ cls.obj.matrix_world
eb.head[:] = eb.tail
eb.tail[:] = eb.head + tail_vec
else:
tail_vec = v @ cls.obj.matrix_world
eb.tail[:] = eb.head + tail_vec
eb.roll = 0.0
def make_constraint( cls, bone, constraint ):
bpy.ops.object.mode_set(mode = 'OBJECT')
pb = cls.obj.pose.bones
owner_pb = pb[bone]
const = owner_pb.constraints.new( constraint['constraint'] )
constraint['target'] = cls.obj
# filter constraint props to those that actually exist in the current
# type of constraint, then assign values to each
for p in [ k for k in constraint.keys() if k in dir(const) ]:
if p in dir( const ):
setattr( const, p, constraint[p] )
else:
raise MetarigError(
"RIGIFY ERROR: property %s does not exist in %s constraint" % (
p, constraint['constraint']
))
def get_bone_name( name, btype, suffix = '' ):
# RE pattern match right or left parts
# match the letter "L" (or "R"), followed by an optional dot (".")
# and 0 or more digits at the end of the the string
pattern = r'^(\S+)(\.\S+)$'
name = strip_org( name )
types = {
'mch' : make_mechanism_name( name ),
'org' : org( name ),
'def' : make_deformer_name( name ),
'ctrl' : name
}
name = types[btype]
if suffix:
results = re.match( pattern, name )
bname, addition = ('','')
if results:
bname, addition = results.groups()
name = bname + "_" + suffix + addition
else:
name = name + "_" + suffix
return name
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