feat: Add block breaking, HUD, and inventory system for player

js/input.js

@@ -18,14 +18,24 @@ window.addEventListener('keydown', (e) => {
         e.preventDefault();
     }
     
+    // Start breaking blocks with E key
+    if (e.code === 'KeyE' && player) {
+        player.startBreaking();
+    }
+    
     // Prevent default behavior for game control keys
-    if (['KeyW', 'KeyA', 'KeyS', 'KeyD', 'Space'].includes(e.code)) {
+    if (['KeyW', 'KeyA', 'KeyS', 'KeyD', 'Space', 'KeyE'].includes(e.code)) {
         e.preventDefault();
     }
 });
 
 window.addEventListener('keyup', (e) => {
     keyState[e.code] = false;
+    
+    // Stop breaking blocks when E key is released
+    if (e.code === 'KeyE' && player) {
+        player.stopBreaking();
+    }
 });
 
 function updatePlayerMovement() {