81 lines
2.8 KiB
Python
81 lines
2.8 KiB
Python
import asyncio
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import random
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from typing import Optional
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from .models import Room, RoomState, Horse, HorseState
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from .config import Config
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class RaceEngine:
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def __init__(self, config: Config):
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self.config = config
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self.active_tasks: dict[str, asyncio.Task] = {}
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def tick(self, room: Room):
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"""Advance race by one tick. Returns list of finished horses."""
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room.tick_count += 1
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for horse in room.horses.values():
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if horse.state == HorseState.RACING:
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distance = max(0, random.gauss(10, 3))
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horse.position += distance
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finished_horses = [
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h for h in room.horses.values()
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if h.position >= self.config.RACE_DISTANCE
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]
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return finished_horses
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def determine_champion(self, horses: list[Horse]) -> Horse:
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"""Determine champion from tied horses."""
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if len(horses) == 1:
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return horses[0]
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while len(horses) > 1:
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distances = [max(0, random.gauss(10, 3)) for _ in horses]
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max_distance = max(distances)
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horses = [h for h, d in zip(horses, distances) if d == max_distance]
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return horses[0]
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def register_task(self, scope: str, task: asyncio.Task):
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"""Register an active race task."""
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self.active_tasks[scope] = task
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def stop_race(self, scope: str):
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"""Stop race and cancel task."""
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if scope in self.active_tasks:
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task = self.active_tasks[scope]
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if not task.done():
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task.cancel()
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del self.active_tasks[scope]
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def format_progress(self, room: Room) -> str:
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"""Format race progress as visual bar for each horse."""
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distance = self.config.RACE_DISTANCE
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bar_width = 20
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lines = [f"【第{room.tick_count}回合】"]
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sorted_horses = sorted(room.horses.values(), key=lambda h: h.index)
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# Calculate max display width for name alignment
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# Each CJK/fullwidth char counts as 2, others as 1
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def _display_width(s: str) -> int:
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w = 0
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for ch in s:
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w += 2 if '\u4e00' <= ch <= '\u9fff' or '\u3000' <= ch <= '\u303f' or '\uff00' <= ch <= '\uffef' else 1
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return w
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max_name_width = max(_display_width(h.name) for h in sorted_horses)
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for horse in sorted_horses:
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progress = min(horse.position / distance, 1.0)
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filled = int(progress * bar_width)
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bar = "█" * filled + "░" * (bar_width - filled)
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# Pad with fullwidth spaces (1 fullwidth space = 2 columns = 1 CJK char width)
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diff = max_name_width - _display_width(horse.name)
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pad = "\u3000" * (diff // 2) + (" " if diff % 2 else "")
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lines.append(f" {horse.index:02d}号 {horse.name}{pad} |{bar}| {horse.position:.1f}m")
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return "\n".join(lines)
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