From 64d058566cfd7e1e9f0b400abc8ffe395ce107a0 Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Wed, 13 May 2026 14:24:40 +0200
Subject: [PATCH] Add terrain grid resize visualization components

---
 src/viewport-three/viewport-host.ts | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/viewport-three/viewport-host.ts b/src/viewport-three/viewport-host.ts
index 74453b46..d92c03d7 100644
--- a/src/viewport-three/viewport-host.ts
+++ b/src/viewport-three/viewport-host.ts
@@ -974,6 +974,31 @@ export class ViewportHost {
       depthTest: false
     })
   );
+  private readonly terrainGridResizeOverlayGroup = new Group();
+  private readonly terrainGridResizeEdgeLine = new Line(
+    new BufferGeometry(),
+    new LineBasicMaterial({
+      color: TERRAIN_GRID_RESIZE_EDGE_COLOR,
+      depthTest: false,
+      depthWrite: false
+    })
+  );
+  private readonly terrainGridResizeArrowLine = new Line(
+    new BufferGeometry(),
+    new LineBasicMaterial({
+      color: TERRAIN_GRID_RESIZE_ARROW_COLOR,
+      depthTest: false,
+      depthWrite: false
+    })
+  );
+  private readonly terrainGridResizeArrowHead = new Mesh(
+    new ConeGeometry(0.13, TERRAIN_GRID_RESIZE_ARROW_HEAD_LENGTH, 16),
+    new MeshBasicMaterial({
+      color: TERRAIN_GRID_RESIZE_ARROW_COLOR,
+      depthTest: false,
+      depthWrite: false
+    })
+  );
   private readonly pathGroup = new Group();
   private readonly entityGroup = new Group();
   private readonly modelGroup = new Group();