feat: Enhance turtle model and visualization with block surroundings and world block management

server/server.js

@@ -13,6 +13,38 @@ app.use(express.json());
 // Store connected web clients and turtle data
 const webClients = new Set();
 const turtleData = new Map(); // turtleID -> turtle state
+const worldBlocks = new Map(); // "x,y,z" -> {name, metadata, discoveredBy, timestamp}
+
+// Helper to store discovered blocks
+function storeBlock(x, y, z, blockData, turtleID) {
+  const key = `${x},${y},${z}`;
+  worldBlocks.set(key, {
+    ...blockData,
+    discoveredBy: turtleID,
+    timestamp: Date.now()
+  });
+}
+
+// Helper to calculate block position based on turtle position and facing
+function getBlockPosition(turtlePos, facing, direction) {
+  if (!turtlePos) return null;
+  
+  const pos = { ...turtlePos };
+  
+  if (direction === 'up') {
+    pos.y += 1;
+  } else if (direction === 'down') {
+    pos.y -= 1;
+  } else if (direction === 'forward') {
+    // Calculate based on facing direction
+    if (facing === 0) pos.z -= 1; // North
+    else if (facing === 1) pos.x += 1; // East
+    else if (facing === 2) pos.z += 1; // South
+    else if (facing === 3) pos.x -= 1; // West
+  }
+  
+  return pos;
+}
 
 // Create HTTP server
 const server = createServer(app);
@@ -29,10 +61,17 @@ wss.on('connection', (ws) => {
   console.log('🌐 New web client connected');
   webClients.add(ws);
 
-  // Send current turtle data to new client
+  // Send current turtle data and world blocks to new client
+  const blocks = [];
+  for (const [key, blockData] of worldBlocks.entries()) {
+    const [x, y, z] = key.split(',').map(Number);
+    blocks.push({ x, y, z, ...blockData });
+  }
+  
   ws.send(JSON.stringify({
     type: 'initial_state',
-    turtles: Array.from(turtleData.values())
+    turtles: Array.from(turtleData.values()),
+    blocks: blocks
   }));
 
   ws.on('message', (message) => {
@@ -101,6 +140,16 @@ app.post('/api/turtle/update', (req, res) => {
       ...turtleUpdate,
       lastUpdate: Date.now()
     });
+    
+    // Store discovered blocks in world map
+    if (turtleUpdate.surroundings && turtleUpdate.position && turtleUpdate.facing !== undefined) {
+      for (const [direction, blockData] of Object.entries(turtleUpdate.surroundings)) {
+        const blockPos = getBlockPosition(turtleUpdate.position, turtleUpdate.facing, direction);
+        if (blockPos) {
+          storeBlock(blockPos.x, blockPos.y, blockPos.z, blockData, turtleID);
+        }
+      }
+    }
 
     // Broadcast to web clients
     broadcastToClients({
@@ -149,6 +198,19 @@ app.get('/api/turtles', (req, res) => {
   });
 });
 
+// Get world blocks for map visualization
+app.get('/api/world/blocks', (req, res) => {
+  const blocks = [];
+  for (const [key, blockData] of worldBlocks.entries()) {
+    const [x, y, z] = key.split(',').map(Number);
+    blocks.push({
+      x, y, z,
+      ...blockData
+    });
+  }
+  res.json({ blocks });
+});
+
 // Send command to turtle
 app.post('/api/turtle/:id/command', (req, res) => {
   try {