feat: Complete 2D Visual Overhaul - Isometric to Flat Top-Down

- NEW: Flat2DTerrainSystem.js (375 lines)
- NEW: map2d_data.js procedural map (221 lines)
- MODIFIED: GameScene async create, 2D terrain integration
- MODIFIED: Player.js flat 2D positioning
- MODIFIED: game.js disabled pixelArt for smooth rendering
- FIXED: 15+ bugs (updateCulling, isometric conversions, grid lines)
- ADDED: Phase 28 to TASKS.md
- DOCS: DNEVNIK.md session summary

Result: Working flat 2D game with Stardew Valley style!
Time: 5.5 hours

docs/CRAFTING_INTEGRATION.md

@@ -0,0 +1,282 @@
+# 🛠️ CRAFTING SYSTEM - Integration Guide
+
+**Status:** ✅ Complete - Ready to integrate  
+**Date:** 2025-12-14
+
+---
+
+## 📦 FILES CREATED
+
+```
+✅ data/recipes.json
+✅ src/systems/CraftingSystem.js
+✅ src/ui/CraftingUI.js
+```
+
+---
+
+## 🔧 INTEGRATION STEPS
+
+### STEP 1: Add to index.html
+
+Add scripts BEFORE GameScene:
+
+```html
+<!-- Crafting System -->
+<script src="src/systems/CraftingSystem.js"></script>
+<script src="src/ui/CraftingUI.js"></script>
+```
+
+### STEP 2: Initialize in GameScene.js
+
+In `create()` method, add AFTER inventory system:
+
+```javascript
+// In GameScene.create()
+async create() {
+    // ... existing code ...
+    
+    // Initialize Inventory (existing)
+    if (!this.inventorySystem) {
+        this.inventorySystem = new InventorySystem(this);
+    }
+    
+    // 🛠️ CRAFTING SYSTEM (NEW!)
+    this.craftingSystem = new CraftingSystem(this);
+    await this.craftingSystem.loadRecipes();
+    
+    // 🎨 CRAFTING UI (NEW!)
+    this.craftingUI = new CraftingUI(this);
+    
+    // ... rest of code ...
+}
+```
+
+### STEP 3: Add Update Call
+
+In GameScene `update()` method:
+
+```javascript
+update(time, delta) {
+    // ... existing updates ...
+    
+    // 🛠️ UPDATE CRAFTING
+    if (this.craftingSystem) {
+        this.craftingSystem.update(delta);
+    }
+}
+```
+
+### STEP 4: Add Toggle Key
+
+In GameScene `setupCamera()` or `create()`:
+
+```javascript
+// Add crafting UI toggle (C key)
+this.input.keyboard.on('keydown-C', () => {
+    if (this.craftingUI) {
+        this.craftingUI.toggle();
+    }
+});
+```
+
+---
+
+## 🎮 HOW TO USE
+
+### Open Crafting UI:
+```
+Press C key
+```
+
+### Craft an Item:
+1. Open crafting UI (C)
+2. Select category (top buttons)
+3. Click on recipe (left panel)
+4. Check ingredients (right panel)
+5. Click "CRAFT" button
+6. Wait for progress bar
+7. Item added to inventory!
+
+---
+
+## 🧪 TESTING CHECKLIST
+
+### Test Recipes:
+- [ ] Open UI with C key
+- [ ] Switch between categories
+- [ ] Select a recipe
+- [ ] Check ingredient display
+- [ ] Craft wooden fence (needs 5 wood)
+- [ ] Craft stone path (needs 3 stone)
+- [ ] Check crafting queue
+- [ ] Check progress tracking
+- [ ] Verify item added to inventory
+
+### Test Edge Cases:
+- [ ] Try crafting without ingredients
+- [ ] Try locked recipe
+- [ ] Craft multiple items queued
+- [ ] Close UI while crafting
+- [ ] Check inventory updates
+
+---
+
+## 📝 ADD TEST ITEMS
+
+For testing, add some items to inventory:
+
+```javascript
+// In console or init code:
+gameScene.inventorySystem.addItem('wood', 50);
+gameScene.inventorySystem.addItem('stone', 30);
+gameScene.inventorySystem.addItem('iron_bar', 10);
+gameScene.inventorySystem.addItem('grass', 100);
+gameScene.inventorySystem.addItem('wheat', 50);
+```
+
+---
+
+## 🎨 AVAILABLE RECIPES
+
+### Building Category:
+- Wooden Fence (5 wood → 10 fences)
+- Stone Path (3 stone → 5 pavements)
+- Wooden Chest (10 wood → 1 chest)
+
+### Tools Category:
+- Iron Tool (2 iron + 1 wood → 1 tool) 🔒
+- Basic Hoe (5 wood + 2 stone → 1 hoe)
+- Watering Can (3 iron → 1 can) 🔒
+
+### Farming Category:
+- Fertilizer (5 grass + 2 dirt → 5 fertilizer)
+- Scarecrow (3 wood + 10 wheat → 1 scarecrow)
+
+### Resources:
+- Coal (10 wood → 1 coal)
+
+### Materials:
+- Rope (20 grass → 1 rope)
+
+---
+
+## 🔓 UNLOCK RECIPES
+
+Some recipes are locked by default. To unlock:
+
+```javascript
+gameScene.craftingSystem.unlockRecipe('iron_tool');
+gameScene.craftingSystem.unlockRecipe('watering_can');
+```
+
+---
+
+## 💡 CUSTOMIZATION
+
+### Add New Recipe:
+
+Edit `data/recipes.json`:
+
+```json
+"my_new_item": {
+  "id": "my_new_item",
+  "name": "My Item",
+  "description": "Description here",
+  "category": "tools",
+  "ingredients": {
+    "wood": 5,
+    "stone": 2
+  },
+  "result": {
+    "item": "my_item",
+    "quantity": 1
+  },
+  "unlocked": true,
+  "craftTime": 2000
+}
+```
+
+### Add New Category:
+
+In `data/recipes.json` categories array:
+
+```json
+{
+  "id": "weapons",
+  "name": "Weapons",
+  "icon": "⚔️"
+}
+```
+
+---
+
+## 🐛 TROUBLESHOOTING
+
+### UI Not Showing:
+- Check console for errors
+- Verify scripts loaded in index.html
+- Check craftingUI initialized in GameScene
+
+### Recipes Not Loading:
+- Check data/recipes.json exists
+- Check console for fetch errors
+- Verify JSON syntax is valid
+
+### Can't Craft:
+- Check you have required items
+- Check recipe is unlocked
+- Check inventory system exists
+
+---
+
+## ✅ COMPLETE INTEGRATION EXAMPLE
+
+```javascript
+// In GameScene.js
+
+class GameScene extends Phaser.Scene {
+    async create() {
+        // ... existing setup ...
+        
+        // Inventory (existing)
+        this.inventorySystem = new InventorySystem(this);
+        
+        // CRAFTING SYSTEM
+        this.craftingSystem = new CraftingSystem(this);
+        await this.craftingSystem.loadRecipes();
+        this.craftingUI = new CraftingUI(this);
+        
+        // Crafting toggle key
+        this.input.keyboard.on('keydown-C', () => {
+            this.craftingUI.toggle();
+        });
+        
+        // Test items (REMOVE IN PRODUCTION!)
+        this.inventorySystem.addItem('wood', 50);
+        this.inventorySystem.addItem('stone', 30);
+        
+        console.log('🛠️ Crafting system ready!');
+    }
+    
+    update(time, delta) {
+        // ... existing updates ...
+        
+        if (this.craftingSystem) {
+            this.craftingSystem.update(delta);
+        }
+    }
+}
+```
+
+---
+
+## 🎉 DONE!
+
+**Crafting system is complete and ready to use!**
+
+Press **C** to open crafting UI and start crafting! 🛠️✨
+
+---
+
+*Implementation completed: 2025-12-14 15:12*