init

test/update_goldens.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+# Regenerate test/goldens.txt from current binary output. Run only after
+# intentional changes to generation logic.
+set -eu
+cd "$(dirname "$0")/.."
+BIN=./bin/genesis
+OUT=test/goldens.txt
+
+if [[ ! -x "$BIN" ]]; then
+    echo "error: $BIN not built. Run 'make' first." >&2
+    exit 2
+fi
+
+# Pairs of seed:depth. Mix shallow (water) and deep (lava/chasm/brimstone) to
+# cover the full liquid range.
+PAIRS=(
+    "1:1" "2:1" "42:1" "77:1" "1234:1" "2026:1" "9999:1"
+    "123456:1" "31337:1" "7:1" "100:1" "500:1"
+    "2026:10" "2026:15" "2026:20" "2026:25"
+    "1234:18" "9999:22"
+)
+
+{
+    echo "# seed_depth|map_sha256|summary_line"
+    echo "# Generated $(date -u +%Y-%m-%dT%H:%M:%SZ)"
+    for pair in "${PAIRS[@]}"; do
+        seed="${pair%:*}"
+        depth="${pair#*:}"
+        hash=$("$BIN" --seed "$seed" --depth "$depth" 2>/dev/null | sha256sum | awk '{print $1}')
+        summary=$("$BIN" --seed "$seed" --depth "$depth" --quiet 2>&1 >/dev/null)
+        printf '%s:%s|%s|%s\n' "$seed" "$depth" "$hash" "$summary"
+    done
+} > "$OUT"
+echo "wrote $OUT ($(wc -l < "$OUT") lines)"