停止点のあるsin(cos)を用いたモーションをつけるコード

.py

# %%
import bpy
import numpy as np


def modified_sin(frames, target_fs, delta, amp, freq, shift, fn):
    hold_fs = [f for fs in [list(range(v-delta, v+delta)) for v in target_fs] for f in fs]
    cycle = frames - len(hold_fs)
    ny = [amp*fn(freq*2*np.pi/cycle*t)-shift for t in range(cycle)]
    result = []
    ni = 0
    for i in range(frames):
        result.append(ny[ni])
        ni = ni+1 if i not in hold_fs else ni
    return result


def setArmature(target_fs):
    obj = bpy.data.objects['Armature']
    bone = obj.pose.bones['Handle']
    xs = modified_sin(251, target_fs, 13, 3, 1, 0, np.cos)
    zs = modified_sin(251, target_fs, 13, 3, 2, 3, np.sin)
    ys = [3.5*np.sin(6*np.pi/251*t)-10.0 for t in range(251)]
    zeroLocations = []
    nys = []
    for t in range(251):
        x = xs[t]
        z = zs[t]
        y = ys[t]
        y = -7-.2 if y > -7-.2 else y
        nys.append(y)
        if t in target_fs:
            zeroLocations.append((t, (x, y+7+.6, 3-z)))
        bone.location = [x, y, z]
        bone.keyframe_insert(data_path='location', frame=t)
    return zeroLocations


def setCubes(zeroFrameAndLocation):
    ys = [3.5*np.sin(6*np.pi/251*t)-10.0 for t in range(251)]
    ys = [-7-.2 if y > -7-.2 else y for y in ys]
    for i, (frame, location) in enumerate(zeroFrameAndLocation):
        obj = bpy.data.objects[f'Cube.{i+1:03d}']
        obj.rigid_body.enabled = False
        obj.keyframe_insert(data_path='rigid_body.enabled', frame=1)
        obj.rigid_body.kinematic = True
        obj.keyframe_insert(data_path='rigid_body.kinematic', frame=1)
        obj.location = (location[0], location[1]-2.01, location[2])
        obj.keyframe_insert(data_path='location', frame=1)
        obj.location = (location[0], location[1]-.5, location[2])
        obj.keyframe_insert(data_path='location', frame=5)
        obj.keyframe_insert(data_path='location', frame=frame+5)
        for j in range(6):
            f = frame+5+j+1
            obj.location = (location[0], -7-ys[f]-.25, location[2])
            obj.keyframe_insert(data_path='location', frame=f)
        obj.location = location
        obj.keyframe_insert(data_path='location', frame=(frame+12))
        obj.keyframe_insert(data_path='location', frame=(frame+13))
        obj.keyframe_insert(data_path='location', frame=(frame+14))
        obj.rigid_body.enabled = True
        obj.keyframe_insert(data_path='rigid_body.enabled', frame=(frame+14))
        obj.rigid_body.kinematic = False
        obj.keyframe_insert(data_path='rigid_body.kinematic', frame=(frame+14))


for action in bpy.data.actions:
    bpy.data.actions.remove(action)


target_fs = [21, 105, 189]
setCubes(setArmature(target_fs))

for action in bpy.data.actions:
    for f in action.fcurves:
        for k in f.keyframe_points:
            k.interpolation = 'LINEAR'

https://www.youtube.com/shorts/Q0HRmZw6JlA