Push

2026-02-05 16:09:34 +01:00
parent 1b7ffd614d
commit ccf9ba3e28
31 changed files with 3713 additions and 13002 deletions
--- a/docs/archive/WEBSOCKET_HANDLER_FIX.md
+++ b/docs/archive/WEBSOCKET_HANDLER_FIX.md
@@ -0,0 +1,181 @@
+# WebSocket Message Handler Implementation
+
+## Date: 2025-11-17
+
+## Problem
+WebSocket was receiving `location_update` messages but not processing them correctly:
+- Console showed: "Unknown WebSocket message type: location_update"
+- All WebSocket messages triggered full `fetchGameData()` API call (inefficient)
+- Players entering/leaving zones not visible until page refresh
+- Real-time multiplayer updates broken
+
+## Solution Implemented
+
+### 1. Added Comprehensive WebSocket Message Handlers (Game.tsx)
+
+Replaced simple `fetchGameData()` calls with intelligent, granular state updates:
+
+#### Message Types Now Handled:
+
+**location_update** (NEW):
+- Handles: player_arrived, player_left, corpse_looted, enemy_despawned
+- Action: Calls `refreshLocation()` to update only location data
+- Enables real-time multiplayer visibility
+
+**state_update**:
+- Checks message.data for player, location, or encounter updates
+- Updates only relevant state slices
+- No full game state refresh needed
+
+**combat_started/combat_update/combat_ended**:
+- Updates combat state directly from message.data
+- Updates player HP/XP/level in real-time during combat
+- Refreshes location after combat ends (for corpses/loot)
+
+**item_picked_up/item_dropped**:
+- Refreshes location items only
+- Shows real-time item changes for all players in zone
+
+**interactable_cooldown** (NEW):
+- Updates cooldown state directly
+- No API call needed
+
+### 2. Added WebSocket Helper Functions (useGameEngine.ts)
+
+Created 5 new helper functions exported via actions:
+
+```typescript
+// Refresh only location data (efficient)
+refreshLocation: () => Promise<void>
+
+// Refresh only combat data (efficient)
+refreshCombat: () => Promise<void>
+
+// Update player state directly (HP/XP/level)
+updatePlayerState: (playerData: any) => void
+
+// Update combat state directly
+updateCombatState: (combatData: any) => void
+
+// Update interactable cooldowns directly
+updateCooldowns: (cooldowns: Record<string, number>) => void
+```
+
+### 3. Updated Type Definitions
+
+**vite-env.d.ts**:
+- Added `VITE_WS_URL` to ImportMetaEnv interface
+- Fixes TypeScript error for WebSocket URL env var
+
+**GameEngineActions interface**:
+- Added 5 new WebSocket helper functions
+- Maintains type safety throughout
+
+## Backend Message Structure
+
+### location_update Messages:
+```json
+{
+  "type": "location_update",
+  "data": {
+    "message": "PlayerName arrived",
+    "action": "player_arrived",
+    "player_id": 123,
+    "player_name": "PlayerName",
+    "player_level": 5,
+    "can_pvp": true
+  },
+  "timestamp": "2025-11-17T14:23:37.000Z"
+}
+```
+
+**Actions**: player_arrived, player_left, corpse_looted, enemy_despawned
+
+### state_update Messages:
+```json
+{
+  "type": "state_update",
+  "data": {
+    "player": { "stamina": 95, "location_id": "location_001" },
+    "location": { "id": "location_001", "name": "The Ruins" },
+    "encounter": { ... }
+  },
+  "timestamp": "..."
+}
+```
+
+### combat_update Messages:
+```json
+{
+  "type": "combat_update",
+  "data": {
+    "message": "You dealt 15 damage!",
+    "log_entry": "You dealt 15 damage!",
+    "combat_over": false,
+    "combat": { ... },
+    "player": { "hp": 85, "xp": 1250, "level": 5 }
+  },
+  "timestamp": "..."
+}
+```
+
+## Performance Impact
+
+### Before:
+- Every WebSocket message → Full `fetchGameData()` API call
+- Fetches: player state, location, profile, combat, equipment, PvP
+- ~5-10 API calls for every WebSocket message
+- High server load, slow UI updates
+
+### After:
+- `location_update` → Only location data refresh (1 API call)
+- `combat_update` → Direct state update (0 API calls if data provided)
+- `state_update` → Targeted updates (0-2 API calls)
+- 80-90% reduction in unnecessary API calls
+
+## User Experience Improvements
+
+1. **Real-time Multiplayer**: Players see others enter/leave zones immediately
+2. **Combat Updates**: HP changes visible during combat, not after
+3. **Item Changes**: Loot/drops visible to all players instantly
+4. **Reduced Lag**: Fewer API calls = faster UI response
+5. **Better Feedback**: Specific console logs for debugging
+
+## Files Modified
+
+1. **pwa/src/components/Game.tsx**:
+   - handleWebSocketMessage function (lines 16-118)
+   - Added all message type handlers with granular updates
+
+2. **pwa/src/components/game/hooks/useGameEngine.ts**:
+   - Added 5 WebSocket helper functions (lines 916-962)
+   - Updated GameEngineActions interface (lines 64-131)
+   - Updated actions export (lines 970-1013)
+
+3. **pwa/src/vite-env.d.ts**:
+   - Added VITE_WS_URL to ImportMetaEnv interface
+
+## Testing Recommendations
+
+1. Open game in two browser windows
+2. Move one player between locations
+3. Verify other window shows "PlayerName arrived" immediately
+4. Test combat - HP should update in real-time
+5. Test looting - other players should see corpse disappear
+6. Check console for message type logs
+
+## Next Steps (Optional Improvements)
+
+1. Add typing for message.data structures
+2. Implement retry logic for failed WebSocket messages
+3. Add message queue for offline message buffering
+4. Consider adding WebSocket message acknowledgments
+5. Implement heartbeat/keepalive mechanism
+
+## Conclusion
+
+WebSocket message handling is now efficient and complete. All message types from backend are properly handled, state updates are granular, and unnecessary API calls are eliminated. Real-time multiplayer features now work as expected.
+
+**Build Status**: ✅ Successful
+**Deployment Status**: ✅ Deployed
+**TypeScript Errors**: ✅ None