Phase 28 Session 2: Biome-based terrain generation active!

CRITICAL UPDATE - Switched to chunk-based biome rendering:

Flat2DTerrainSystem.js changes:
- generate() method now checks for BiomeSystem availability
- If BiomeSystem & ChunkManager exist  use chunk-based generation
- If not available  fallback to old Map2DData system
- createBiomeBackground() creates simple base layer
- Chunks are rendered on-demand via ChunkManager

Flow:
1. Terrain system checks: biomeSystem && chunkManager
2. If YES  Skip Map2DData, use chunks
3. Create green background (24000x24000px)
4. ChunkManager loads 9 chunks around player
5. Each chunk renders with biome-specific tiles

Benefits:
- Only renders visible chunks (9 instead of 250k tiles!)
- Biome-specific tiles per chunk
- Dynamic loading as player moves
- Fallback to old system if needed

Status: Ready for biome visualization test!
Next: Reload game and see biomes!

Files modified: 1 (Flat2DTerrainSystem.js)

src/systems/Flat2DTerrainSystem.js

@@ -35,21 +35,59 @@ class Flat2DTerrainSystem {
         // Create textures first
         this.createTileTextures();
 
-        // Load map data
-        if (typeof Map2DData !== 'undefined') {
-            this.tiles = Map2DData.generateMap();
-            console.log('✅ Map data generated:', this.tiles.length, 'rows');
+        // 🌍 PHASE 28: Use BiomeSystem if available
+        if (this.biomeSystem && this.chunkManager) {
+            console.log('🌍 Using BiomeSystem for chunk-based terrain generation');
+            // Biome-based generation will happen via ChunkManager
+            // No need to generate full map here!
+
+            // Create simple grass background as fallback
+            this.createBiomeBackground();
         } else {
-            console.error('❌ Map2DData not loaded!');
-            this.createFallbackMap();
+            // Fallback to old Map2DData system
+            console.log('📊 Using Map2DData for terrain generation (fallback)');
+
+            // Load map data
+            if (typeof Map2DData !== 'undefined') {
+                this.tiles = Map2DData.generateMap();
+                console.log('✅ Map data generated:', this.tiles.length, 'rows');
+            } else {
+                console.error('❌ Map2DData not loaded!');
+                this.createFallbackMap();
+            }
+
+            // Render the old-style map
+            this.renderMap();
         }
 
-        // Render the map
-        this.renderMap();
-
         console.log('✅ Flat 2D map ready!');
     }
 
+    // 🌍 PHASE 28: Create simple biome-aware background
+    createBiomeBackground() {
+        const size = this.tileSize;
+        const mapWidth = this.width * size;
+        const mapHeight = this.height * size;
+
+        console.log('🎨 Creating biome-aware background...');
+
+        // Create solid background (will be covered by chunks)
+        const background = this.scene.add.rectangle(0, 0, mapWidth, mapHeight, 0x3CB371);
+        background.setOrigin(0, 0);
+        background.setDepth(0);
+
+        // Create containers for chunks
+        this.pathsLayer = this.scene.add.container(0, 0);
+        this.pathsLayer.setDepth(2);
+
+        this.decorLayer = this.scene.add.container(0, 0);
+        this.decorLayer.setDepth(3);
+
+        this.groundLayer = background;
+
+        console.log('✅ Biome background created, ready for chunks');
+    }
+
     createTileTextures() {
         // 🎨 Create SOLID, OPAQUE tiles (no transparency!)