feat: add chunk analysis endpoint to compute ore density from discovered blocks

server/server.js

@@ -1056,6 +1056,51 @@ app.post('/api/chunks', (req, res) => {
   }
 });
 
+// Analyze a chunk (compute ore density from discovered blocks)
+app.post('/api/chunks/:x/:z/analyze', (req, res) => {
+  try {
+    const chunkX = parseInt(req.params.x);
+    const chunkZ = parseInt(req.params.z);
+    
+    // Chunk bounds in world coordinates (16x16 columns, full Y range)
+    const minX = chunkX * 16;
+    const maxX = minX + 15;
+    const minZ = chunkZ * 16;
+    const maxZ = minZ + 15;
+    
+    // Get all blocks in the chunk from the DB
+    const blocks = db.getBlocksInArea(minX, -64, minZ, maxX, 320, maxZ);
+    
+    // Count ores
+    const oreCounts = {};
+    let totalBlocks = 0;
+    
+    if (blocks && Array.isArray(blocks)) {
+      for (const block of blocks) {
+        totalBlocks++;
+        if (block.block_name && block.block_name.includes('ore')) {
+          oreCounts[block.block_name] = (oreCounts[block.block_name] || 0) + 1;
+        }
+      }
+    }
+    
+    const analysis = {
+      x: chunkX,
+      z: chunkZ,
+      totalBlocks,
+      ores: oreCounts,
+      scannedAt: Date.now(),
+    };
+    
+    // Save the analysis
+    db.saveChunkAnalysis(chunkX, chunkZ, analysis);
+    
+    res.json(analysis);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
 // Search blocks by name pattern in area
 app.get('/api/world/blocks/search', (req, res) => {
   try {