from __future__ import annotations

from engine.character import Character
from engine.defs import DefRegistry


def apply_bleeding_tick(character: Character, registry: DefRegistry, ticks: int) -> None:
    """Every body part that's been lost (removed=True) bleeds at its def's bleeding_speed per tick."""
    if ticks <= 0:
        return
    total_loss = 0.0
    for part in character.body_parts:
        if not part.removed:
            continue
        part_def = registry.get_body_part_def(part.part_def_id)
        total_loss += part_def.bleeding_speed * ticks
    if total_loss:
        character.blood_percentage = max(0.0, character.blood_percentage - total_loss)