Change black empty tile to grass and make it destructable

src/engine/world/world-logic.ts

@@ -1,8 +1,8 @@
 import type { World, EntityId } from "../../core/types";
-import { GAME_CONFIG } from "../../core/config/GameConfig";
-
+import { isBlocking, isDestructible, getDestructionResult } from "../../core/terrain";
 import { type EntityManager } from "../EntityManager";
 
+
 export function inBounds(w: World, x: number, y: number): boolean {
   return x >= 0 && y >= 0 && x < w.width && y < w.height;
 }
@@ -12,13 +12,34 @@ export function idx(w: World, x: number, y: number): number {
 }
 
 export function isWall(w: World, x: number, y: number): boolean {
+  // Alias for isBlocking for backward compatibility
+  return isBlockingTile(w, x, y);
+}
+
+export function isBlockingTile(w: World, x: number, y: number): boolean {
   const tile = w.tiles[idx(w, x, y)];
-  return tile === GAME_CONFIG.terrain.wall || tile === GAME_CONFIG.terrain.wallDeco;
+  return isBlocking(tile);
+}
+
+export function tryDestructTile(w: World, x: number, y: number): boolean {
+  if (!inBounds(w, x, y)) return false;
+  
+  const i = idx(w, x, y);
+  const tile = w.tiles[i];
+
+  if (isDestructible(tile)) {
+    const nextTile = getDestructionResult(tile);
+    if (nextTile !== undefined) {
+      w.tiles[i] = nextTile;
+      return true;
+    }
+  }
+  return false;
 }
 
 export function isBlocked(w: World, x: number, y: number, em?: EntityManager): boolean {
   if (!inBounds(w, x, y)) return true;
-  if (isWall(w, x, y)) return true;
+  if (isBlockingTile(w, x, y)) return true;
 
   if (em) {
     return em.isOccupied(x, y, "exp_orb");