SWBF-msh-Blender-IO/addons/io_scene_swbf_msh/msh_anim_gather.py

92 lines
2.5 KiB
Python

""" Gathers the Blender objects from the current scene and returns them as a list of
Model objects. """
import bpy
import math
from enum import Enum
from typing import List, Set, Dict, Tuple
from itertools import zip_longest
from .msh_model import *
from .msh_model_utilities import *
from .msh_utilities import *
from .msh_model_gather import *
from .crc import to_crc
def extract_anim(armature: bpy.types.Armature, root_name: str) -> Animation:
action = armature.animation_data.action
# Set of bones to include in SKL2/animation stuff
keyable_bones : Set[str] = set()
msh_skel = armature.data.swbf_msh_skel
has_preserved_skel = len(msh_skel) > 0
if has_preserved_skel:
for bone in msh_skel:
#print("Adding {} from preserved skel to exported skeleton".format(bone.name))
keyable_bones.add(bone.name)
elif action:
for group in action.groups:
#print("Adding {} from action groups to exported skeleton".format(group.name))
keyable_bones.add(group.name)
anim = Animation();
root_crc = to_crc(root_name)
if not action:
framerange = Vector((0.0,1.0))
else:
framerange = action.frame_range
num_frames = math.floor(framerange.y - framerange.x) + 1
increment = (framerange.y - framerange.x) / (num_frames - 1)
anim.end_index = num_frames - 1
anim.bone_frames[root_crc] = ([], [])
for bone in armature.data.bones:
if bone.name in keyable_bones:
anim.bone_frames[to_crc(bone.name)] = ([], [])
for frame in range(num_frames):
frame_time = framerange.x + frame * increment
bpy.context.scene.frame_set(frame_time)
rframe_dummy = RotationFrame(frame, convert_rotation_space(Quaternion()))
tframe_dummy = TranslationFrame(frame, Vector((0.0,0.0,0.0)))
anim.bone_frames[root_crc][0].append(tframe_dummy)
anim.bone_frames[root_crc][1].append(rframe_dummy)
for bone in armature.pose.bones:
if bone.name not in keyable_bones:
continue
transform = bone.matrix
if bone.parent:
transform = bone.parent.matrix.inverted() @ transform
loc, rot, _ = transform.decompose()
rframe = RotationFrame(frame, convert_rotation_space(rot))
tframe = TranslationFrame(frame, convert_vector_space(loc))
anim.bone_frames[to_crc(bone.name)][0].append(tframe)
anim.bone_frames[to_crc(bone.name)][1].append(rframe)
return anim