Add presets (table/chair), object count, near_object condition, optimization locks placed objects and randomizes remaining

src/ai/nn.ts

@@ -26,9 +26,23 @@ export function optimizeWithNN(state: LayoutState, options: NNOptions = {}): { b
     let targetY = f.shape.y;
     const needsNearEntrance = f.conditions.some((c) => c.kind === 'near_entrance');
     const needsCenter = f.conditions.some((c) => c.kind === 'around_open_area');
+    const needsNearObj = f.conditions.find((c) => c.kind === 'near_object');
     if (entrance && needsNearEntrance) {
       targetX = entrance.x + (Math.random() - 0.5) * 40;
       targetY = entrance.y + (Math.random() - 0.5) * 40;
+    } else if (needsNearObj) {
+      const tid = (needsNearObj.params as any)?.targetId;
+      const t = tid ? candidate.furniture.find((x) => x.id === tid) : undefined;
+      if (t) {
+        targetX = t.shape.x + t.shape.width / 2 - f.shape.width / 2 + (Math.random() - 0.5) * 30;
+        targetY = t.shape.y + t.shape.height / 2 - f.shape.height / 2 + (Math.random() - 0.5) * 30;
+      } else if (needsCenter) {
+        targetX = centerX - f.shape.width / 2 + (Math.random() - 0.5) * 60;
+        targetY = centerY - f.shape.height / 2 + (Math.random() - 0.5) * 60;
+      } else {
+        targetX = Math.random() * (candidate.room.width - f.shape.width);
+        targetY = Math.random() * (candidate.room.height - f.shape.height);
+      }
     } else if (needsCenter) {
       targetX = centerX - f.shape.width / 2 + (Math.random() - 0.5) * 60;
       targetY = centerY - f.shape.height / 2 + (Math.random() - 0.5) * 60;