add grid in map, so the player actually knows wtf is going on

src/camera.rs

@@ -90,6 +90,12 @@ impl Plugin for CameraPlugin {
 }
 
 #[derive(Component)]
+pub enum MapGrid {
+    HighRes,
+    LowRes,
+}
+
+#[derive(Component, Default)]
 pub struct ShowOnlyInMap {
     pub min_distance: f64,
     pub distance_to_id: String,
@@ -126,6 +132,7 @@ impl Default for MapCam {
 pub fn setup_camera(
     mut commands: Commands,
     settings: Res<var::Settings>,
+    asset_server: Res<AssetServer>,
     prefs: Res<var::Preferences>,
 ) {
     // Add player
@@ -201,6 +208,28 @@ pub fn setup_camera(
     commands.insert_resource(DirectionalLightShadowMap {
         size: settings.shadowmap_resolution,
     });
+
+    // Add map grid
+    let mut entitycmd = commands.spawn((
+        MapGrid::HighRes,
+        hud::ToggleableHudElement,
+        ShowOnlyInMap::default(),
+        bevy::pbr::NotShadowCaster,
+        bevy::pbr::NotShadowReceiver,
+        visual::IsEffect,
+        SpatialBundle::default(),
+    ));
+    load_asset("mapgrid", &mut entitycmd, &*asset_server);
+    let mut entitycmd = commands.spawn((
+        MapGrid::LowRes,
+        hud::ToggleableHudElement,
+        ShowOnlyInMap::default(),
+        bevy::pbr::NotShadowCaster,
+        bevy::pbr::NotShadowReceiver,
+        visual::IsEffect,
+        SpatialBundle::default(),
+    ));
+    load_asset("mapgrid", &mut entitycmd, &*asset_server);
 }
 
 pub fn sync_camera_to_player(
@@ -259,6 +288,14 @@ pub fn update_map_camera(
         ),
     >,
     q_target_changed: Query<(), Changed<hud::IsTargeted>>,
+    mut q_mapgrid: Query<
+        (&mut Transform, &MapGrid),
+        (
+            Without<hud::IsTargeted>,
+            Without<Camera>,
+            Without<actor::PlayerCamera>,
+        ),
+    >,
     mut mouse_events: EventReader<MouseMotion>,
     mut er_mousewheel: EventReader<MouseWheel>,
     keyboard_input: Res<ButtonInput<KeyCode>>,
@@ -275,6 +312,18 @@ pub fn update_map_camera(
     };
     mapcam.center_on_entity = Some(target_entity);
 
+    // Update map grid
+    let step: f64 = 5.0;
+    for (mut trans, mapgrid) in &mut q_mapgrid {
+        trans.translation = Vec3::ZERO;
+        let scale = step.powf(mapcam.zoom_level.log(step).floor());
+        let scale = match mapgrid {
+            MapGrid::HighRes => scale,
+            MapGrid::LowRes => scale * step,
+        };
+        trans.scale = Vec3::splat(scale as f32);
+    }
+
     // Get mouse movement
     let mut mouse_delta = Vec2::ZERO;
     for mouse_event in mouse_events.read() {
@@ -625,19 +674,23 @@ pub fn update_map_only_object_visibility(
     let cam_pos: Vec3 = cam.translation + player_pos.as_vec3();
     for (mut vis, onlyinmap) in &mut q_onlyinmap {
         if settings.map_active && settings.hud_active {
-            if let Some(pos) = id2pos.0.get(&onlyinmap.distance_to_id) {
-                let dist = cam_pos.distance(pos.as_vec3());
-                if dist >= onlyinmap.min_distance as f32 {
-                    *vis = Visibility::Inherited;
+            if onlyinmap.distance_to_id.is_empty() {
+                *vis = Visibility::Inherited;
+            } else {
+                if let Some(pos) = id2pos.0.get(&onlyinmap.distance_to_id) {
+                    let dist = cam_pos.distance(pos.as_vec3());
+                    if dist >= onlyinmap.min_distance as f32 {
+                        *vis = Visibility::Inherited;
+                    } else {
+                        *vis = Visibility::Hidden;
+                    }
                 } else {
+                    error!(
+                        "Failed get position of actor ID '{}'",
+                        &onlyinmap.distance_to_id
+                    );
                     *vis = Visibility::Hidden;
                 }
-            } else {
-                error!(
-                    "Failed get position of actor ID '{}'",
-                    &onlyinmap.distance_to_id
-                );
-                *vis = Visibility::Hidden;
             }
         } else {
             *vis = Visibility::Hidden;

src/load.rs

@@ -63,6 +63,7 @@ pub fn asset_name_to_path(name: &str) -> &'static str {
         "pizzasign" => "models/pizzasign.glb#Scene0",
         "selectagon" => "models/selectagon.glb#Scene0",
         "orbitring" => "models/orbitring.glb#Scene0",
+        "mapgrid" => "models/mapgrid.glb#Scene0",
         "clippy" => "models/clippy/clippy.glb#Scene0",
         "clippy_ar" => "models/clippy/ar_happy.glb#Scene0",
         "whale" => "models/whale.gltf#Scene0",