Thorsten
f37dc9fa76
FastAPI + Postgres backend with fastapi-users auth, games/characters CRUD, and a WebSocket chat endpoint where an x.ai Grok DM narrates play, rolls dice, and maintains character sheets via tool calls. React + Tailwind frontend covers registration/login, game list and creation, participation-code join flow, character viewer, and a real-time chat session view. Docker Compose skeleton (Postgres + backend) included; Caddy/frontend container wiring is deferred to the deploy milestone. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
import re
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from random import SystemRandom
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_rng = SystemRandom()
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_NOTATION_RE = re.compile(r"^\s*(\d*)d(\d+)\s*(?:([+-])\s*(\d+))?\s*$", re.IGNORECASE)
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TOOL_SCHEMA = {
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"name": "roll_dice",
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"description": (
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"Roll dice using standard D&D notation (e.g. '1d20+5', '2d6', 'd8-1'). "
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"Always use this tool for any dice roll that affects the game — never invent or guess a result yourself."
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),
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"parameters": {
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"type": "object",
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"properties": {
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"notation": {
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"type": "string",
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"description": "Dice notation, e.g. '1d20+5'",
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},
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"reason": {
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"type": "string",
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"description": "Short reason for the roll, e.g. 'Geschicklichkeitsrettung, Schwierigkeit 13'",
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},
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},
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"required": ["notation"],
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},
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}
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def roll(notation: str) -> dict:
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match = _NOTATION_RE.match(notation)
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if not match:
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raise ValueError(f"Invalid dice notation: {notation!r}")
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count_str, sides_str, sign, modifier_str = match.groups()
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count = int(count_str) if count_str else 1
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sides = int(sides_str)
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if not (1 <= count <= 100) or not (2 <= sides <= 1000):
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raise ValueError(f"Dice notation out of allowed range: {notation!r}")
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modifier = int(modifier_str) if modifier_str else 0
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if sign == "-":
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modifier = -modifier
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rolls = [_rng.randint(1, sides) for _ in range(count)]
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total = sum(rolls) + modifier
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return {"notation": notation, "rolls": rolls, "modifier": modifier, "total": total}
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