Dance · Full body

Box step

Target Full body  ·  Equipment Body weight  ·  Level Beginner  ·  Reps 4

Box step is a beginner-level dance movement targeting the full body, written in Posecode, a small open-source language that capable language models can use to describe human movement as text. Authored joint targets and reach-IK solves are constrained to Posecode's configured per-axis bounds. Those bounds constrain the visualization, but they do not certify that a complete movement is safe or clinically correct. This page documents a code example; it is not exercise instruction.

Movement phases

Phase cues are display-only coaching text. The executable joint and contact directives in the source below determine the animation.

1. Right foot forward0.9s · flow Step forward onto the right foot with an easy contralateral arm swing
2. Left foot side0.85s · flow Transfer left to the side, keeping the torso lifted
3. Right foot back0.9s · flow Step back onto the right foot to trace the third side of the box
4. Left foot closes home0.85s · settle Close the left foot and settle over both feet, completing the square

The .posecode source

This is the exact text used by the linked playground animation: phases and joint angles, not 3D transforms.

posecode exercise "Box step"
  rig humanoid
  pose start = standing

  step "Right foot forward" 0.9s flow:
    hip_right: flex 30
    knee_right: flex 32
    ankle_right: plantarflex 24
    shoulder_left: flex 22
    shoulder_right: extend 12
    travel: 0 0.32
    pin: foot_left floor
    cue "Step forward onto the right foot with an easy contralateral arm swing"

  step "Left foot side" 0.85s flow:
    hip_right: flex 0
    knee_right: flex 0
    ankle_right: plantarflex 0
    hip_left: abduct 24
    knee_left: flex 22
    ankle_left: plantarflex 20
    shoulder_left: flex 0
    shoulder_right: flex 20
    travel: -0.32 0.32
    pin: foot_right floor
    cue "Transfer left to the side, keeping the torso lifted"

  step "Right foot back" 0.9s flow:
    hip_left: abduct 0
    knee_left: flex 0
    ankle_left: plantarflex 0
    hip_right: extend 18
    knee_right: flex 30
    ankle_right: plantarflex 24
    shoulder_right: flex 0
    shoulder_left: flex 22
    travel: -0.32 0
    pin: foot_left floor
    cue "Step back onto the right foot to trace the third side of the box"

  step "Left foot closes home" 0.85s settle:
    hip_right: extend 0
    knee_right: flex 0
    ankle_right: plantarflex 0
    shoulders: flex 0
    travel: 0 0
    reach: foot_left floor
    reach: foot_right floor
    cue "Close the left foot and settle over both feet, completing the square"

  repeat 4

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