diff --git a/Cargo.lock b/Cargo.lock
index 3418ad3..354b1a9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2112,15 +2112,6 @@ version = "3.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
 
-[[package]]
-name = "bvh2d"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9ee0a309eb56478856a9adc57323d1abc3455be416341e6017f7d9c96ee326b"
-dependencies = [
- "glam",
-]
-
 [[package]]
 name = "bytecheck"
 version = "0.6.12"
@@ -3108,16 +3099,6 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "feeef44e73baff3a26d371801df019877a9866a8c493d315ab00177843314f35"
 
-[[package]]
-name = "earcutr"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79127ed59a85d7687c409e9978547cffb7dc79675355ed22da6b66fd5f6ead01"
-dependencies = [
- "itertools 0.11.0",
- "num-traits",
-]
-
 [[package]]
 name = "ecolor"
 version = "0.30.0"
@@ -3420,12 +3401,6 @@ dependencies = [
  "miniz_oxide",
 ]
 
-[[package]]
-name = "float_next_after"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bf7cc16383c4b8d58b9905a8509f02926ce3058053c056376248d958c9df1e8"
-
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -3671,46 +3646,6 @@ dependencies = [
  "version_check",
 ]
 
-[[package]]
-name = "geo"
-version = "0.29.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34f0e6e028c581e82e6822a68869514e94c25e7f8ea669a2d8595bdf7461ccc5"
-dependencies = [
- "earcutr",
- "float_next_after",
- "geo-types",
- "geographiclib-rs",
- "i_overlay",
- "log",
- "num-traits",
- "robust",
- "rstar",
- "spade",
-]
-
-[[package]]
-name = "geo-types"
-version = "0.7.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bd1157f0f936bf0cd68dec91e8f7c311afe60295574d62b70d4861a1bfdf2d9"
-dependencies = [
- "approx",
- "num-traits",
- "rayon",
- "rstar",
- "serde",
-]
-
-[[package]]
-name = "geographiclib-rs"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6e5ed84f8089c70234b0a8e0aedb6dc733671612ddc0d37c6066052f9781960"
-dependencies = [
- "libm",
-]
-
 [[package]]
 name = "gethostname"
 version = "0.4.3"
@@ -3800,7 +3735,6 @@ version = "0.29.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc46dd3ec48fdd8e693a98d2b8bafae273a2d54c1de02a2a7e3d57d501f39677"
 dependencies = [
- "approx",
  "bytemuck",
  "rand 0.8.5",
  "serde",
@@ -3955,15 +3889,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "hash32"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47d60b12902ba28e2730cd37e95b8c9223af2808df9e902d4df49588d1470606"
-dependencies = [
- "byteorder",
-]
-
 [[package]]
 name = "hashbrown"
 version = "0.12.3"
@@ -4005,16 +3930,6 @@ dependencies = [
  "foldhash",
 ]
 
-[[package]]
-name = "heapless"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
-dependencies = [
- "hash32",
- "stable_deref_trait",
-]
-
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -4278,50 +4193,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "i_float"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "775f9961a8d2f879725da8aff789bb20a3ddf297473e0c90af75e69313919490"
-dependencies = [
- "serde",
-]
-
-[[package]]
-name = "i_key_sort"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "347c253b4748a1a28baf94c9ce133b6b166f08573157e05afe718812bc599fcd"
-
-[[package]]
-name = "i_overlay"
-version = "1.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01882ce5ed786bf6e8f5167f171a4026cd129ce17d9ff5cbf1e6749b98628ece"
-dependencies = [
- "i_float",
- "i_key_sort",
- "i_shape",
- "i_tree",
- "rayon",
-]
-
-[[package]]
-name = "i_shape"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27dbe9e5238d6b9c694c08415bf00fb370b089949bd818ab01f41f8927b8774c"
-dependencies = [
- "i_float",
- "serde",
-]
-
-[[package]]
-name = "i_tree"
-version = "0.8.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "155181bc97d770181cf9477da51218a19ee92a8e5be642e796661aee2b601139"
-
 [[package]]
 name = "iana-time-zone"
 version = "0.1.61"
@@ -4634,15 +4505,6 @@ dependencies = [
  "either",
 ]
 
-[[package]]
-name = "itertools"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1c173a5686ce8bfa551b3563d0c2170bf24ca44da99c7ca4bfdab5418c3fe57"
-dependencies = [
- "either",
-]
-
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -5003,7 +4865,6 @@ dependencies = [
  "thiserror 2.0.11",
  "trunk",
  "uuid",
- "vleue_navigator",
 ]
 
 [[package]]
@@ -6301,22 +6162,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2f3a9f18d041e6d0e102a0a46750538147e5e8992d3b4873aaafee2520b00ce3"
 
-[[package]]
-name = "polyanya"
-version = "0.12.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6d3ef5978f6c2550809ecda6920b6cbac8e11f39ca821362f6c22f29b7aac50"
-dependencies = [
- "bvh2d",
- "geo",
- "glam",
- "hashbrown 0.15.2",
- "log",
- "smallvec",
- "spade",
- "thiserror 1.0.69",
-]
-
 [[package]]
 name = "portable-atomic"
 version = "1.10.0"
@@ -6981,17 +6826,6 @@ version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c20b6793b5c2fa6553b250154b78d6d0db37e72700ae35fad9387a46f487c97"
 
-[[package]]
-name = "rstar"
-version = "0.12.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "421400d13ccfd26dfa5858199c30a5d76f9c54e0dba7575273025b43c5175dbb"
-dependencies = [
- "heapless",
- "num-traits",
- "smallvec",
-]
-
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
@@ -8556,17 +8390,6 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
-[[package]]
-name = "vleue_navigator"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3594f6304030e531c36a377369d1fe064ebebc89d185bd83a0f27833700b392d"
-dependencies = [
- "bevy",
- "itertools 0.13.0",
- "polyanya",
-]
-
 [[package]]
 name = "vlq"
 version = "0.5.1"
diff --git a/Cargo.toml b/Cargo.toml
index deb1729..76c9e5b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -55,7 +55,6 @@ serde_json = "1.0.138"
 strum = "0.26.3"
 thiserror = "2.0.11"
 uuid = { version = "1.12.1", features = ["js"] }
-vleue_navigator = "0.11.1"
 
 [target.'cfg(target_arch = "x86_64")'.dependencies]
 bevy_remote_inspector = "0.1.0"
diff --git a/src/actor.rs b/src/actor.rs
index 57c28b4..080b2c7 100644
--- a/src/actor.rs
+++ b/src/actor.rs
@@ -97,7 +97,6 @@ use serde::Deserialize;
 use serde::Serialize;
 use std::f32::consts::PI;
 use uuid::Uuid;
-use vleue_navigator::prelude::PrimitiveObstacle;
 use witch::WitchWandSprite;
 
 /// アクターの種類を表します
@@ -327,8 +326,6 @@ impl Actor {
     pub fn get_total_scale_factor(&self) -> f32 {
         let mut scale_factor: f32 = -1.0;
 
-        // todo
-
         for wand in self.wands.iter() {
             for slot in &wand.slots {
                 scale_factor += match slot {
@@ -1290,21 +1287,6 @@ pub fn spawn_actor(
         },
     ));
 
-    // ナビメッシュの再構築は重いため、本棚のような固定のアクターのみ PrimitiveObstacle を設定します
-    // アクターが破壊されるとナビメッシュを再計算します
-    if actor_group == ActorGroup::Entity && props.body_type == BodyType::Fixed {
-        let scale = 1.0;
-        builder.insert(match props.collider {
-            ActorCollider::Ball(radius) => {
-                (PrimitiveObstacle::Circle(Circle::new(radius * scale)),)
-            }
-            ActorCollider::Cuboid(width, height) => (PrimitiveObstacle::Rectangle(Rectangle::new(
-                width * 2.0 * scale,
-                height * 2.0 * scale,
-            )),),
-        });
-    }
-
     builder.with_children(|mut parent| {
         // 影
         if let Some(shadow) = &props.shadow {
diff --git a/src/game.rs b/src/game.rs
index 806bace..c9bbd94 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -118,9 +118,6 @@ use bevy_rapier2d::prelude::*;
 use bevy_simple_text_input::TextInputPlugin;
 use bevy_simple_websocket::WebSocketPlugin;
 use std::num::NonZero;
-use vleue_navigator::prelude::NavmeshUpdaterPlugin;
-use vleue_navigator::prelude::PrimitiveObstacle;
-use vleue_navigator::VleueNavigatorPlugin;
 
 pub fn run_game() {
     let mut app = App::new();
@@ -194,8 +191,6 @@ pub fn run_game() {
         .add_systems(Startup, setup_rapier_context)
         .add_plugins(Light2dPlugin)
         .add_plugins(TextInputPlugin)
-        .add_plugins(VleueNavigatorPlugin)
-        .add_plugins(NavmeshUpdaterPlugin::<PrimitiveObstacle>::default())
         .add_plugins(EguiPlugin)
         //
         // 以下はこのゲーム本体で定義されたプラグイン
diff --git a/src/level.rs b/src/level.rs
index 0a3e0ac..924992f 100644
--- a/src/level.rs
+++ b/src/level.rs
@@ -3,7 +3,6 @@ pub mod ceil;
 pub mod chunk;
 pub mod collision;
 pub mod entities;
-pub mod navigation;
 pub mod spawn;
 pub mod tile;
 pub mod world;
diff --git a/src/level/chunk.rs b/src/level/chunk.rs
index 2a6380a..05d4129 100644
--- a/src/level/chunk.rs
+++ b/src/level/chunk.rs
@@ -44,7 +44,6 @@ pub struct LevelChunk {
     pub entities: Vec<SpawnEvent>,
     pub bounds: Bounds,
     pub dirty_scriptes: Option<Bounds>,
-    pub dirty_navmesh: bool,
 }
 
 impl LevelChunk {
@@ -157,7 +156,6 @@ impl LevelChunk {
                     max_y,
                 })
             },
-            dirty_navmesh: true,
         };
     }
 
diff --git a/src/level/collision.rs b/src/level/collision.rs
index 7055de7..6929bf8 100644
--- a/src/level/collision.rs
+++ b/src/level/collision.rs
@@ -12,7 +12,6 @@ use bevy_rapier2d::prelude::Collider;
 use bevy_rapier2d::prelude::Friction;
 use bevy_rapier2d::prelude::RigidBody;
 use std::collections::HashMap;
-use vleue_navigator::prelude::PrimitiveObstacle;
 
 /// 壁タイルから衝突矩形を計算します
 /// チェストや本棚なども侵入不可能ですが、それらは個別に衝突形状を持つため、ここでは壁のみを扱います
@@ -115,7 +114,6 @@ pub fn spawn_wall_collisions(commands: &mut Commands, registry: &Registry, chunk
             StateScoped(GameState::InGame),
             Transform::from_translation(Vec3::new(x, y, 0.0)),
             GlobalTransform::default(),
-            PrimitiveObstacle::Rectangle(Rectangle::new(w * 2.0, h * 2.0)),
             Collider::cuboid(w, h),
             RigidBody::Fixed,
             Friction {
@@ -140,7 +138,6 @@ pub fn spawn_wall_collisions(commands: &mut Commands, registry: &Registry, chunk
             StateScoped(GameState::InGame),
             Transform::from_translation(Vec3::new(x, y, 0.0)),
             GlobalTransform::default(),
-            PrimitiveObstacle::Rectangle(Rectangle::new(w * 2.0, h * 2.0)),
             // todo: merge colliders
             Collider::cuboid(w, h),
             RigidBody::Fixed,
diff --git a/src/level/navigation.rs b/src/level/navigation.rs
deleted file mode 100644
index 0a2c62e..0000000
--- a/src/level/navigation.rs
+++ /dev/null
@@ -1,65 +0,0 @@
-use super::chunk::LevelChunk;
-use super::world::GameWorld;
-use super::world::LevelScoped;
-use crate::level::chunk::index_to_position;
-use crate::level::world::GameLevel;
-use crate::states::GameState;
-use bevy::prelude::*;
-use vleue_navigator::prelude::NavMeshSettings;
-use vleue_navigator::prelude::NavMeshUpdateMode;
-use vleue_navigator::Triangulation;
-
-#[derive(Component)]
-pub struct ChunkNavMesh {
-    pub level: GameLevel,
-}
-
-// ナビゲーションメッシュを作成します
-// ナビメッシュ生成は重いためチャンクごとに生成します
-// このため、敵キャラクターがレベル境界を越えて接近することはありません
-pub fn spawn_navigation_mesh(commands: &mut Commands, chunk: &LevelChunk) {
-    commands.spawn((
-        StateScoped(GameState::InGame),
-        LevelScoped(chunk.level.clone()),
-        ChunkNavMesh {
-            level: chunk.level.clone(),
-        },
-        NavMeshSettings {
-            // デスクトップ版では問題ないが、ブラウザ版ではナビメッシュの生成がかなり重い
-            // 4.0 で少し改善する？
-            simplify: 4.0,
-            // Define the outer borders of the navmesh.
-            fixed: Triangulation::from_outer_edges(&[
-                // ここ半タイルぶんズレてる？
-                index_to_position((chunk.bounds.min_x, chunk.bounds.min_y)),
-                index_to_position((chunk.bounds.max_x, chunk.bounds.min_y)),
-                index_to_position((chunk.bounds.max_x, chunk.bounds.max_y)),
-                index_to_position((chunk.bounds.min_x, chunk.bounds.max_y)),
-            ]),
-
-            // 小さすぎると、わずかな隙間を通り抜けようとしたり、
-            // 曲がり角で壁に近すぎて減速してしまいます
-            // 大きすぎると、対象が壁際にいるときに移動不可能な目的地になってしまうので、
-            // パスが見つけられなくなってしまいます
-            // Actorのデフォルトが5なので、それに合わせています
-            agent_radius: 5.0,
-            ..default()
-        },
-        // todo
-        // ナビゲーションメッシュ生成は重くDebouncedはWASMで実用的でない
-        NavMeshUpdateMode::OnDemand(true),
-        Transform::from_translation(Vec3::ZERO),
-    ));
-}
-
-pub fn update_dirty_navmesh(
-    mut world: ResMut<GameWorld>,
-    mut navmesh_query: Query<(&ChunkNavMesh, &mut NavMeshUpdateMode)>,
-) {
-    for (chunk_navmesh, mut update_mode) in navmesh_query.iter_mut() {
-        if let Some(chunk) = world.get_chunk_mut(&chunk_navmesh.level) {
-            *update_mode = NavMeshUpdateMode::OnDemand(true);
-            chunk.dirty_navmesh = false;
-        }
-    }
-}
diff --git a/src/level/world.rs b/src/level/world.rs
index 0fa04d5..0c04977 100644
--- a/src/level/world.rs
+++ b/src/level/world.rs
@@ -59,6 +59,7 @@ impl GameWorld {
         self.chunks.iter().find(|chunk| chunk.level == *level)
     }
 
+    #[allow(dead_code)]
     pub fn get_chunk_mut(&mut self, level: &GameLevel) -> Option<&mut LevelChunk> {
         self.chunks.iter_mut().find(|chunk| chunk.level == *level)
     }
diff --git a/src/page/in_game.rs b/src/page/in_game.rs
index 777a6e2..84be9ca 100644
--- a/src/page/in_game.rs
+++ b/src/page/in_game.rs
@@ -21,8 +21,6 @@ use crate::level::collision::WallCollider;
 use crate::level::entities::spawn_entity;
 use crate::level::entities::Spawn;
 use crate::level::entities::SpawnEvent;
-use crate::level::navigation::spawn_navigation_mesh;
-use crate::level::navigation::update_dirty_navmesh;
 use crate::level::spawn::spawn_random_enemies;
 use crate::level::tile::Tile;
 use crate::level::world::GameLevel;
@@ -97,13 +95,7 @@ pub fn setup_game_world(
     world.chunks.push(center_chunk.clone());
 
     // 各レベルのエンティティを生成します
-    spawn_level_entities_and_navmesh(
-        &mut commands,
-        &registry,
-        &mut spawn,
-        &mut rng,
-        &center_chunk,
-    );
+    spawn_level_entities_and_navmesh(&registry, &mut spawn, &mut rng, &center_chunk);
 
     // プレイヤーキャラクターの生成 ///////////////////////////////////////////////////////////////////////////////////////////
     // エントリーポイントをランダムに選択
@@ -150,7 +142,6 @@ pub fn setup_game_world(
 }
 
 fn spawn_level_entities_and_navmesh(
-    mut commands: &mut Commands,
     registry: &Registry,
     mut spawn: &mut EventWriter<SpawnEvent>,
     mut rng: &mut StdRng,
@@ -160,8 +151,6 @@ fn spawn_level_entities_and_navmesh(
 
     let props = registry.get_level(&level);
 
-    spawn_navigation_mesh(&mut commands, &chunk);
-
     // エンティティ生成 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
     // 宝箱や灯篭などのエンティティを生成します
@@ -224,7 +213,6 @@ fn spawn_level_entities_and_navmesh(
 }
 
 fn spawn_neighbor_chunks(
-    mut commands: Commands,
     registry: Registry,
     mut world: ResMut<GameWorld>,
     mut spawn: EventWriter<SpawnEvent>,
@@ -244,13 +232,7 @@ fn spawn_neighbor_chunks(
         if world.get_chunk(neighbor).is_none() {
             let chunk = LevelChunk::new(&registry, neighbor, true);
             world.chunks.push(chunk.clone());
-            spawn_level_entities_and_navmesh(
-                &mut commands,
-                &registry,
-                &mut spawn,
-                &mut rng,
-                &chunk,
-            );
+            spawn_level_entities_and_navmesh(&registry, &mut spawn, &mut rng, &chunk);
 
             // チャンクの生成は重い処理になるため、1フレームで生成するチャンクは最大ひとつ
             return;
@@ -426,7 +408,6 @@ fn update_lazy_tile_sprites(
 
         indiceis_to_spawn.push(chunk.bounds.min_y + chunk.loading_index);
 
-        // todo これが重い？
         clear_tiles_by_bounds(
             &mut commands,
             &tiles_query,
@@ -518,13 +499,7 @@ impl Plugin for WorldPlugin {
             FixedUpdate,
             (
                 select_bgm,
-                (
-                    spawn_neighbor_chunks,
-                    despawn_chunks,
-                    spawn_entity,
-                    update_dirty_navmesh,
-                )
-                    .chain(),
+                (spawn_neighbor_chunks, despawn_chunks, spawn_entity).chain(),
             )
                 .in_set(FixedUpdateGameActiveSet),
         );
diff --git a/src/strategy.rs b/src/strategy.rs
index d71976e..bca0404 100644
--- a/src/strategy.rs
+++ b/src/strategy.rs
@@ -2,7 +2,6 @@ use crate::actor::Actor;
 use crate::actor::ActorFireState;
 use crate::actor::ActorGroup;
 use crate::collision::SENSOR_GROUPS;
-use crate::level::navigation::ChunkNavMesh;
 use crate::level::world::GameWorld;
 use crate::registry::actor::ActorPropsByType;
 use crate::registry::Registry;
@@ -16,9 +15,6 @@ use bevy_rapier2d::prelude::QueryFilter;
 use serde::Deserialize;
 use std::cmp::Ordering;
 use std::collections::HashMap;
-use vleue_navigator::prelude::ManagedNavMesh;
-use vleue_navigator::prelude::NavMeshStatus;
-use vleue_navigator::NavMesh;
 
 const APPROACH_MERGIN: f32 = 8.0;
 
@@ -100,8 +96,6 @@ fn update(
     registry: Registry,
     rapier_context: Query<&RapierContext, With<DefaultRapierContext>>,
     mut query: Query<(Entity, &mut Actor, &Transform)>,
-    navmesh: Query<(&ChunkNavMesh, &ManagedNavMesh, Ref<NavMeshStatus>)>,
-    navmeshes: Res<Assets<NavMesh>>,
     setup: Res<GameWorld>,
 ) {
     let context: &RapierContext = rapier_context.single();
@@ -161,8 +155,6 @@ fn update(
             origin,
             &props,
             &mut actor,
-            &navmesh,
-            &navmeshes,
             next_action_index,
             action,
             &setup,
@@ -196,11 +188,9 @@ fn execute(
     origin: Vec2,
     props: &ActorPropsByType,
     actor: &mut Actor,
-    navmesh_query: &Query<(&ChunkNavMesh, &ManagedNavMesh, Ref<NavMeshStatus>)>,
-    navmeshes: &Res<Assets<NavMesh>>,
     next_action_index: usize,
     action: &Action,
-    setup: &Res<GameWorld>,
+    world: &Res<GameWorld>,
 ) {
     match action {
         Action::Sleep => {
@@ -252,59 +242,9 @@ fn execute(
                 return;
             }
 
+            // TODO
             // ナビメッシュでルートを検索
-            let Some(chunk) = setup.find_chunk_by_position(origin) else {
-                return;
-            };
-
-            let Some((_, navmesh_handle, status)) = navmesh_query
-                .iter()
-                .find(|(n, _, _)| n.level == chunk.level)
-            else {
-                return;
-            };
-
-            let navmesh = navmeshes.get(navmesh_handle);
-
-            let destination = if *status == NavMeshStatus::Built {
-                if let Some(navmesh) = navmesh {
-                    let from = origin;
-                    let to = nearest.position;
-
-                    if let Some(path) = navmesh.path(
-                        // エンティティの位置そのものを使うと、壁際に近づいたときに agent_radius のマージンに埋もれて
-                        // 到達不可能になってしまうので、タイルの中心を使います
-                        from, to,
-                    ) {
-                        actor.navigation_path = path.path.clone();
-
-                        // ナビメッシュで次の目的地を選定
-                        // APPROACH_MERGIN以下の近すぎるものは避ける
-                        if let Some(first) = path
-                            .path
-                            .iter()
-                            .filter(|p| APPROACH_MERGIN < (origin - **p).length())
-                            .collect::<Vec<&Vec2>>()
-                            .first()
-                        {
-                            **first
-                        } else {
-                            // ここに来ることはない？
-                            warn!("first not found");
-                            actor.commander.destination
-                        }
-                    } else {
-                        // warn!("path not found, from {:?} to {:?}", from, to);
-                        actor.commander.destination
-                    }
-                } else {
-                    warn!("navmesh not found");
-                    actor.commander.destination
-                }
-            } else {
-                // warn!("navmesh not built");
-                actor.commander.destination
-            };
+            let destination = origin;
 
             actor.commander.destination = destination;