Differential D4364 Diff 13757 rigify/utils/animation.py

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rigify/utils/animation.py

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				#====================== BEGIN GPL LICENSE BLOCK ======================
				#
				# This program is free software; you can redistribute it and/or
				# modify it under the terms of the GNU General Public License
				# as published by the Free Software Foundation; either version 2
				# of the License, or (at your option) any later version.
				#
				# This program is distributed in the hope that it will be useful,
				# but WITHOUT ANY WARRANTY; without even the implied warranty of
				# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
				# GNU General Public License for more details.
				#
				# You should have received a copy of the GNU General Public License
				# along with this program; if not, write to the Free Software Foundation,
				# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				#
				#======================= END GPL LICENSE BLOCK ========================

				# <pep8 compliant>


				#=============================================
				# Keyframing functions
				#=============================================


				def get_keyed_frames(rig):
				frames = []
				if rig.animation_data:
				if rig.animation_data.action:
				fcus = rig.animation_data.action.fcurves
				for fc in fcus:
				for kp in fc.keyframe_points:
				if kp.co[0] not in frames:
				frames.append(kp.co[0])

				frames.sort()

				return frames


				def bones_in_frame(f, rig, *args):
				"""
				True if one of the bones listed in args is animated at frame f
				:param f: the frame
				:param rig: the rig
				:param args: bone names
				:return:
				"""

				if rig.animation_data and rig.animation_data.action:
				fcus = rig.animation_data.action.fcurves
				else:
				return False

				for fc in fcus:
				animated_frames = [kp.co[0] for kp in fc.keyframe_points]
				for bone in args:
				if bone in fc.data_path.split('"') and f in animated_frames:
				return True

				return False


				def overwrite_prop_animation(rig, bone, prop_name, value, frames):
				act = rig.animation_data.action
				if not act:
				return

				bone_name = bone.name
				curve = None

				for fcu in act.fcurves:
				words = fcu.data_path.split('"')
				if words[0] == "pose.bones[" and words[1] == bone_name and words[-2] == prop_name:
				curve = fcu
				break

				if not curve:
				return

				for kp in curve.keyframe_points:
				if kp.co[0] in frames:
				kp.co[1] = value