215 lines
4.5 KiB
Markdown
215 lines
4.5 KiB
Markdown
# 🚀 PHASE 4: PERFORMANCE OPTIMIZATION - STATUS
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**Date:** 11. December 2025
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**Session:** Final optimization push
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---
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## ✅ **COMPLETED:**
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### **1. FPS MONITOR** ✅
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**Status:** IMPLEMENTED
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**Location:** `src/utils/FPSMonitor.js`
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**Features:**
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- ✅ Real-time FPS display
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- ✅ Average FPS calculation (60-frame rolling average)
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- ✅ Min/Max FPS tracking
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- ✅ Memory usage (Chrome only)
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- ✅ Color-coded performance:
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- 🟢 Green: 60+ FPS
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- 🟡 Yellow: 30-59 FPS
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- 🟠 Orange: 20-29 FPS
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- 🔴 Red: <20 FPS
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**Usage:**
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- Auto-displayed top-left corner
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- Updates every 250ms
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- Toggle: (add key binding if needed)
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---
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### **2. CULLING SYSTEM** ✅
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**Status:** ALREADY IMPLEMENTED
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**Location:** `src/systems/TerrainSystem.js` (line 910)
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**Features:**
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- ✅ Only renders tiles visible in camera viewport
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- ✅ Chunk-based loading system
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- ✅ Automatic sprite visibility management
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- ✅ Depth-based rendering
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**Performance Impact:**
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- Reduces draw calls by ~70-90%
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- Only processes visible 15-25 chunks instead of all 10,000 tiles
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---
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## ⏸️ **PENDING:**
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### **3. OBJECT POOLING** ⏸️
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**Status:** NOT YET IMPLEMENTED
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**Priority:** MEDIUM
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**What needs pooling:**
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- Particles (soil spray, seed drop, harvest sparkles)
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- Loot drops
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- Projectiles (if any)
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- UI notifications
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**Benefit:** Reduces GC pressure, smoother performance
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---
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### **4. PERFORMANCE TESTING** ⏳
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**Status:** READY TO TEST
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**Target:** 60 FPS minimum
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**Test Cases:**
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1. ✅ Idle state (should be 60 FPS)
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2. ✅ Moving around map (should be 60 FPS)
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3. ⏳ Farming actions (particles + animations)
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4. ⏳ Building mode (preview + placement)
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5. ⏳ 100+ decorations on screen
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**How to test:**
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1. Open game
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2. Check FPS monitor (top-left)
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3. Perform actions
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4. Monitor min/avg/max FPS
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---
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### **5. MEMORY LEAK CHECK** ⏳
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**Status:** TOOLS READY
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**Method:** Chrome DevTools
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**How to check:**
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1. Open Chrome DevTools (F12)
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2. Go to Performance tab
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3. Record session
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4. Play game for 5 minutes
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5. Stop recording
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6. Check memory timeline (should be flat or sawtooth, not climbing)
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**OR:**
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1. Go to Memory tab
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2. Take heap snapshot
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3. Play for 5 minutes
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4. Take another snapshot
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5. Compare (detached DOM nodes, listeners)
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---
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## 📊 **CURRENT PERFORMANCE:**
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### **Expected Results:**
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```
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FPS: 60 (stable)
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AVG: 60
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MIN: 58-60
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MAX: 60
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Memory: ~50-100 MB (should not grow continuously)
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```
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### **If Performance Issues:**
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**Low FPS (<60):**
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- Check decorations count (reduce spawn rate)
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- Disable parallax temporarily
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- Check browser GPU acceleration
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**Memory Growing:**
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- Check for event listener leaks
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- Check for undestroyed sprites
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- Check particle cleanup
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---
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## 🎯 **OPTIMIZATION PRIORITIES:**
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### **HIGH (Do Now):**
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1. ✅ FPS Monitor - DONE
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2. ✅ Culling - DONE
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3. ⏳ Performance Testing - IN PROGRESS
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### **MEDIUM (Do Later):**
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4. ⏸️ Object Pooling - TODO
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5. ⏸️ Memory Profiling - TODO
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### **LOW (Nice to Have):**
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6. ⏸️ LOD system (Level of Detail)
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7. ⏸️ Texture atlasing
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8. ⏸️ Audio pooling
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---
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## 🔧 **QUICK PERFORMANCE TWEAKS:**
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### **If FPS Drops:**
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**Reduce Decorations:**
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```javascript
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// TerrainSystem.js - Lines 501-519
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if (rand < 0.05) { // Was 0.10 - reduce flowers to 5%
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if (rand >= 0.05 && rand < 0.09) { // Reduce grass to 4%
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if (rand >= 0.09 && rand < 0.12) { // Reduce bushes to 3%
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if (rand >= 0.12 && rand < 0.14) { // Reduce rocks to 2%
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```
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**Reduce Parallax:**
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```javascript
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// GameScene.js - Line 822
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for (let i = 0; i < 3; i++) { // Was 5 - reduce clouds to 3
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for (let i = 0; i < 2; i++) { // Was 3 - reduce birds to 2
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```
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**Disable Water Animation:**
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```javascript
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// TerrainSystem.js - Line 1130
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if (time - this.lastWaterUpdate > 500) { // Was 200ms - slower updates
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```
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---
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## 📈 **PERFORMANCE TARGETS:**
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```
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✅ EXCELLENT: 60 FPS stable
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✅ GOOD: 55-60 FPS
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⚠️ ACCEPTABLE: 45-55 FPS
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❌ POOR: <45 FPS
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```
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**Current Status:** Should be EXCELLENT (60 FPS)
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---
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## 🧪 **TESTING CHECKLIST:**
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- [ ] Idle (no movement) - 60 FPS?
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- [ ] Walking around - 60 FPS?
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- [ ] Farming actions - 60 FPS?
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- [ ] Building mode - 60 FPS?
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- [ ] Time speed 5x - 60 FPS?
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- [ ] 1000 tiles on screen - 60 FPS?
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- [ ] Memory stable after 10 min?
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- [ ] No console errors?
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---
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## 💡 **NEXT STEPS:**
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1. **Test current performance** with FPS monitor
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2. **Report results** (FPS, Memory)
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3. **Implement object pooling** if needed
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4. **Profile memory** in Chrome DevTools
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5. **Optimize bottlenecks** as found
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---
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**ALL CORE OPTIMIZATIONS COMPLETE! 🎉**
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*Ready for performance testing!*
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