62 lines
2.6 KiB
Bash
Executable File
62 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# make_twin.sh — #54 mirror-twin sparring partner generator.
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#
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# Builds a self-contained `SacTwin` bot dir inside the sample-bots archive so
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# RunTraining.java resolves it like any sample bot ($SAMPLE_BOTS_DIR/<name>).
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# The twin is the SAME binary as SAC_LSTM_Bot but with:
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# - distinct identity (SacTwin.json; SACLSTM_BOT_JSON overrides the baked-in
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# src json — loadBotInfo gives json total precedence over env, #49 lesson)
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# - its OWN weights dir, seeded from a FROZEN copy of weights/sac_best.zip
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# (no checkpoint write races with the main bot)
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# - its OWN round_counter.txt (main liveness guard untouched)
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#
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# Re-running resets the twin to the frozen baseline (reproducible opponent).
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#
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# Usage: ./make_twin.sh [target-archive-dir]
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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TARGET="${1:-${SAMPLE_BOTS_DIR:-/home/davide/Projects/tank-royale/sample-bots/java/build/archive}}/SacTwin"
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BIN="$SCRIPT_DIR/SAC_LSTM_Bot" # nimble build -d:release output
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SEED="$SCRIPT_DIR/weights/sac_best.zip" # frozen baseline
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[ -x "$BIN" ] || { echo ">>> $BIN missing — run 'nimble build -d:release' first"; exit 1; }
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[ -f "$SEED" ] || { echo ">>> $SEED missing — need at least one eval'd checkpoint"; exit 1; }
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mkdir -p "$TARGET/weights"
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cp "$BIN" "$TARGET/SAC_LSTM_Bot"
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cat > "$TARGET/SacTwin.json" <<EOF
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{
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"name": "SacTwin",
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"version": "0.1.0",
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"authors": ["Davide Cappellini"],
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"description": "Mirror-twin sparring partner of SAC_LSTM_Bot (#54), generated by make_twin.sh — own weights dir, frozen seed",
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"homepage": "",
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"countryCodes": ["IT"],
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"gameTypes": ["classic", "melee", "1v1"],
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"platform": "Nim",
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"programmingLang": "Nim"
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}
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EOF
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cat > "$TARGET/SacTwin.sh" <<'EOF'
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#!/bin/sh
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# Twin launcher (#54): identity + weights fully decoupled from the main bot.
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DIR="$(cd "$(dirname "$0")" && pwd)"
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export SACLSTM_BOT_JSON="$DIR/SacTwin.json"
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export SACLSTM_WEIGHTS_PATH="$DIR/weights/sac_latest.zip"
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# Freeze contract (#54): the twin is a FROZEN sparring partner, not a
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# co-learner. Eval-mode gate (lever 4) suppresses all sendTrainingMsg traffic,
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# so the twin never trains — not even in-RAM within a battle. Without this,
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# any main-bot checkpoint-interval change would let twin drift accumulate.
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export SACLSTM_EVAL_MODE=1
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exec "$DIR/SAC_LSTM_Bot"
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EOF
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chmod +x "$TARGET/SacTwin.sh" "$TARGET/SAC_LSTM_Bot"
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cp "$SEED" "$TARGET/weights/sac_latest.zip"
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cp "$SEED" "$TARGET/weights/sac_best.zip"
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echo 0 > "$TARGET/weights/round_counter.txt"
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echo ">>> twin ready: $TARGET (seeded from $(stat -c %y "$SEED" | cut -d. -f1) snapshot of sac_best.zip)"
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