Raids: alarm at the gates, battle replay and report popup for everyone

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

game.py

@@ -743,7 +743,7 @@ RAID_TRAITS = ["lightly armoured, heavy on archers", "mounted and fast, few bows
 
 # --- world ---------------------------------------------------------------
 
-WORLD_VERSION = 14
+WORLD_VERSION = 15
 
 
 def new_world(now: float, speed: float = 1.0) -> dict:
@@ -872,9 +872,29 @@ def migrate(world: dict, now: float | None = None) -> dict:
                 stop(player, "Shields are made in Construction now")
         _return_overfunding(world)
         world["version"] = 14
+    if world["version"] < 15:
+        # Raid reports pop up once for everyone; ones from before that don't.
+        latest = last_threat(world)
+        for player in world["players"].values():
+            player["seen_threat"] = latest["id"] if latest else 0
+        world["version"] = 15
     return world
 
 
+def last_threat(world: dict) -> dict | None:
+    """The most recent raid or dragon attack that has played out."""
+    return next((e for e in reversed(world["events"]) if e["status"] == "done" and e["kind"] in THREATS
+                 and e.get("report")), None)
+
+
+def unseen_threat(world: dict, player: dict) -> dict | None:
+    """The latest raid or dragon attack this player hasn't watched yet, if it happened while they were here."""
+    event = last_threat(world)
+    if event and event["id"] > player.get("seen_threat", 0) and event["resolved"] >= player["joined"]:
+        return event
+    return None
+
+
 def _migrate_potions(world: dict) -> None:
     """Potions from before the tiers become their tiered equivalents, uses and all."""
     def renamed(stock: dict) -> None:
@@ -2221,16 +2241,22 @@ SIZE_LABELS = [(30, "small"), (60, "medium"), (100, "large"), (math.inf, "huge")
 WINDOW_HOURS = [24, 8, 2, 0]
 
 
+THREATS = ("raid", "dragon")
+GATES_WARNING = 300   # seconds of warning before a threat strikes
+
+
 def event_view(world: dict, event: dict, now: float) -> dict:
     """What the city knows about an upcoming event, filtered by intel."""
     level = intel_level(world, event, now)
     half = WINDOW_HOURS[level] * HOUR / speed(world)
     costs = intel_costs(event) if "strength" in event else [0, 0, 0]
     centre = event["fire_at"] + event["jitter"] * half * 0.6
+    # In the last few minutes the sentries see them coming, whatever the intel.
+    gates = event["kind"] in THREATS and event["fire_at"] - now <= GATES_WARNING / speed(world)
     view = {
-        "id": event["id"], "kind": event["kind"], "intel": level,
+        "id": event["id"], "kind": event["kind"], "intel": level, "at_gates": gates,
         "earliest": max(now, centre - half), "latest": max(now, centre + half),
-        "exact": event["fire_at"] if level >= 3 else None,
+        "exact": event["fire_at"] if level >= 3 or gates else None,
         "recon": int(min(event["recon"], costs[-1])), "recon_full": costs[-1],
         "recon_next": max(0, round(costs[level] - event["recon"])) if level < 3 else 0,
     }
@@ -2250,6 +2276,8 @@ def event_view(world: dict, event: dict, now: float) -> dict:
             view["strength"] = round(strength)
             view["trait"] = event["trait"]
         view["requests"] = council_requests(world, event)
+        if gates:
+            view["headline"] = "The dragon is overhead!"
     elif event["kind"] == "raid":
         strength = event["strength"] * (1 - event["sabotage"])
         view["headline"] = "Travellers speak of trouble on the roads."
@@ -2269,6 +2297,8 @@ def event_view(world: dict, event: dict, now: float) -> dict:
             view["camp"] = True
             view["sabotage"] = round(event["sabotage"] * 100)
         view["requests"] = council_requests(world, event)
+        if gates:
+            view["headline"] = "Raiders at the gates!"
     elif event["kind"] == "merchant":
         view["headline"] = "A merchant caravan is on its way. Sell prices +50% while it's here."
     else:
@@ -2378,7 +2408,8 @@ def _resolve_raid(world: dict, event: dict, now: float, rng: random.Random) -> N
         lines.extend(_wear_lines(broken, arrows))
         if gold or taken:
             stolen = ", ".join(amount(item, qty) for item, qty in taken.items())
-            lines.append(f"The raiders carried off {gold:,} gold" + (f" and {stolen}." if stolen else "."))
+            loot = [f"{gold:,} gold"] if gold else []
+            lines.append("The raiders carried off " + " and ".join(loot + ([stolen] if stolen else [])) + ".")
         built = [key for key, b in city["buildings"].items() if b["level"] and not b["damaged"]]
         if severity > 0.35 and built:
             key = rng.choice(built)