Random Walker – Cinema 4D Experiments

import c4d, random

op: c4d.BaseObject
gen: c4d.BaseObject
doc: c4d.documents.BaseDocument
thread: c4d.threading.BaseThread

def main() -> bool:
    moData = c4d.modules.mograph.GeGetMoData(op)
    if moData is None:
        return False

    cnt = moData.GetCount ()
    marr = moData.GetArray (c4d.MODATA_MATRIX)

    frame = doc.GetTime().GetFrame(doc.GetFps())

    global x, y, z, updated

    hasField = op[c4d.FIELDS].HasContent()
    fall = moData.GetFalloffs()

    def walk():
        for i in range(cnt):
            marr[i] = updated[i]

            x = updated[i].off.x
            y = updated[i].off.y
            z = updated[i].off.z

            if frame % op[c4d.ID_USERDATA,2] == 0:

                rnd = random.randint (0,5)

                if rnd == 0:
                    x += op[c4d.ID_USERDATA,3]
                    x+= 10

                if rnd == 1:
                    x -= op[c4d.ID_USERDATA,4]

                if rnd == 2:
                    y+= op[c4d.ID_USERDATA,5]

                if rnd == 3:
                    y -= op[c4d.ID_USERDATA,6]

                if rnd == 4:
                    z+= op[c4d.ID_USERDATA,7]

                if rnd == 5:
                    z -= op[c4d.ID_USERDATA,8]

                updated[i].off = c4d.Vector (x, y, z)

    if frame == 0:
        updated = marr

    walk()

    moData.SetArray(c4d.MODATA_MATRIX, marr, hasField)
    return True