diff --git a/src/game-v4.js b/src/game-v4.js
index 4d8d771..2adb47e 100644
--- a/src/game-v4.js
+++ b/src/game-v4.js
@@ -3,7 +3,7 @@ import './style.css';
 import airshipSheetUrl from './assets/airships.svg?url';
 import explosionSheetUrl from './assets/explosions.svg?url';
 import { airshipLog, registerDebugSnapshot } from './diagnostics.js';
-import { normalizePlayerDamage, processQueuedPlayerHits } from './game-logic.js';
+import { normalizePlayerDamage, reducePlayerVolleyHits } from './game-logic.js';
 
 const WORLD_SIZE = 2400;
 const PLAYER_MAX_SPEED = 180;
@@ -571,30 +571,17 @@ class GameScene extends Phaser.Scene {
       gameState: this.gameState,
     };
 
-    const acceptedHits = [];
-    const ignoredHits = [];
+    const result = reducePlayerVolleyHits({
+      hull: this.playerHull,
+      hits,
+      seenVolleyIds: this.damagedPlayerVolleys,
+      maxHull: PLAYER_MAX_HULL,
+      fallbackDamage: PIRATE_SHOT_DAMAGE,
+    });
 
-    for (const hit of hits) {
-      const volleyId = hit.volleyId;
-      if (volleyId != null && this.damagedPlayerVolleys.has(volleyId)) {
-        ignoredHits.push(hit);
-        continue;
-      }
-
-      if (volleyId != null) {
-        this.damagedPlayerVolleys.add(volleyId);
-        if (this.damagedPlayerVolleys.size > 128) {
-          const oldestVolleyId = this.damagedPlayerVolleys.values().next().value;
-          this.damagedPlayerVolleys.delete(oldestVolleyId);
-        }
-      }
-
-      acceptedHits.push(hit);
-    }
-
-    const totalDamage = acceptedHits.reduce((sum, hit) => sum + normalizePlayerDamage(hit.damage, PIRATE_SHOT_DAMAGE), 0);
-    this.playerHull = Math.max(0, this.playerHull - totalDamage);
-    const gameOver = this.playerHull <= 0;
+    this.damagedPlayerVolleys = result.seenVolleyIds;
+    this.playerHull = result.hull;
+    const { acceptedHits, ignoredHits, totalDamage, gameOver } = result;
 
     if (acceptedHits.length > 0) {
       const impact = acceptedHits[0];