Variable BLOCK_ANIMATIONConst

Block animation (막기)

Traditional Taekwondo block with both arms raised.

Animation phases:

1. Raise (0.0s-0.1s): Both arms lift to blocking position
2. Hold (0.1s-0.3s): Maintain block
3. Lower (0.3s-0.4s): Return to guard

Duration: 400ms