Calculate speed multiplier from injuries (without stance or pain).
Korean: 손상 속도 배수 계산
Useful when you want to apply injury penalties separately from stance and pain modifiers.
Uses the shared singleton instance to avoid allocations in per-frame loops.
Current body part health
Speed multiplier (0.1-1.0)
손상속도배수계산
Calculate speed multiplier from injuries (without stance or pain).
Korean: 손상 속도 배수 계산
Useful when you want to apply injury penalties separately from stance and pain modifiers.
Uses the shared singleton instance to avoid allocations in per-frame loops.