113 lines
3.6 KiB
Python
113 lines
3.6 KiB
Python
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import bpy
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from . import fn
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def anim_path_from_y_translate():
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print(fn.helper())
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obj = bpy.context.object
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if obj.type != 'ARMATURE':
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return ('ERROR', 'active is not an armature type')
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# found curve through constraint
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b = bpy.context.active_pose_bone
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if not 'shoe' in b.bone.name:
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return ('ERROR', 'no "shoe" in active bone name')
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curve = None
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if bpy.context.scene.anim_cycle_settings.path_to_follow:
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curve = bpy.context.scene.anim_cycle_settings.path_to_follow
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# if curve is not defined try to track it from constraints on armature
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if not curve:
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curve, _const = fn.get_follow_curve_from_armature(obj)
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if isinstance(curve, str):
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return curve, _const
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act = fn.get_obj_action(obj)
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if not act:
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return ('ERROR', f'No action active on {obj.name}')
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# CHANGE - retiré le int de la frame
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# keyframes = [int(k.co[0]) for fcu in act.fcurves for k in fcu.keyframe_points]
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## calculate offset from bones
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locy_fcu = None
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for fcu in act.fcurves:
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if fcu.data_path.split('"')[1] != b.bone.name:
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continue
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if fcu.data_path.split('.')[-1] == 'location' and fcu.array_index == 1:
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locy_fcu = fcu
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if not locy_fcu:
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return ('ERROR', 'Current bone, location.y animation not found')
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start = None
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end = None
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## based on extreme
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for k in locy_fcu.keyframe_points:
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# if k.select_control_point: # based on selection
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if k.type == 'EXTREME': # using extreme keys.
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if not start:
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start = k
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end = k
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else:
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if start is not None:
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## means back to other frame type after passed breaskdown we stop
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break
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if not start:
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return ('ERROR', f"No extreme marked frame was found on bone {b.bone.name}.{['x','y','z'][locy_fcu.array_index]}")
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if start == end:
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return ('ERROR', 'Seems like only one key was marked as extreme ! Need at least two chained')
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start_frame = start.co.x
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start_val = start.co.y
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end_frame = end.co.x
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end_val = end.co.y
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move_frame = end_frame - start_frame
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# Y positive value (forward) ->
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move_val = abs(start_val - end_val)
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print('move_val: ', move_val)
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length = fn.get_curve_length(curve)
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steps = length / move_val
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frame_duration = steps * move_frame
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### Clear keyframe before creating new ones
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# curve.data.animation_data_clear() # too much.. delete only eval_time
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if curve.data.animation_data and curve.data.animation_data.action:
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for fcu in curve.data.animation_data.action.fcurves:
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if fcu.data_path == 'eval_time':
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curve.data.animation_data.action.fcurves.remove(fcu)
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break
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# TODO check if need to start at 100 or at current frame...
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anim_frame = 100 # C.scene.frame_current
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curve.data.path_duration = frame_duration
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curve.data.eval_time = 0
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curve.data.keyframe_insert('eval_time', frame=anim_frame)# , options={'INSERTKEY_AVAILABLE'}
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curve.data.eval_time = frame_duration
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curve.data.keyframe_insert('eval_time', frame=anim_frame + frame_duration)
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## all to linear (will be set to CONSTANT at the moment of sampling)
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for fcu in curve.data.animation_data.action.fcurves:
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if fcu.data_path == 'eval_time':
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for k in fcu.keyframe_points:
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k.interpolation = 'LINEAR'
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## set all to constant
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# for k in t_fcu.keyframe_points:
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# k.interpolation = 'CONSTANT'
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print('end of set_follow_path_anim')
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