remove bad tilemap. mouse experiment

src/main.rs

@@ -1,12 +1,15 @@
 use bevy::prelude::*;
 
-mod game;
-mod citizen;
 mod camera;
+mod citizen;
+mod game;
 mod item;
 mod tile;
 mod tiles;
 
+use bevy::color::palettes::basic::WHITE;
+use game::PIXEL_RATIO;
+
 fn main() {
     App::new()
         .add_plugins(
@@ -21,14 +24,43 @@ fn main() {
                 .set(ImagePlugin::default_nearest()),
         )
         .insert_resource(ClearColor(Color::srgb(0.1, 0.1, 0.15)))
-        .add_systems(Startup, (
-            game::setup_level,
-            camera::spawn_panning_camera,
-        ))
-        .add_systems(FixedUpdate, (
-            camera::camera_movement,
-            citizen::citizen_movement,
-            tile::tile_sprite_update,
-        ))
+        .add_systems(Startup, (game::setup_level, camera::spawn_panning_camera))
+        .add_systems(
+            FixedUpdate,
+            (
+                camera::camera_movement,
+                citizen::citizen_movement,
+                tile::tile_sprite_update,
+            ),
+        )
+        .add_systems(FixedUpdate, draw_cursor)
         .run();
-}
+}
+
+fn draw_cursor(
+    camera_query: Single<(&Camera, &GlobalTransform)>,
+    windows: Query<&Window>,
+    mut gizmos: Gizmos,
+) {
+    let (camera, camera_transform) = *camera_query;
+
+    let Ok(window) = windows.get_single() else {
+        return;
+    };
+
+    let Some(cursor_position) = window.cursor_position() else {
+        return;
+    };
+
+    // Calculate a world position based on the cursor's position.
+    let Ok(point) = camera.viewport_to_world_2d(camera_transform, cursor_position) else {
+        return;
+    };
+    println!(
+        "pos: {}, {}",
+        (point.x / (16. * PIXEL_RATIO)) as i32,
+        (point.y / (16. * PIXEL_RATIO)) as i32
+    );
+
+    gizmos.circle_2d(point, 10., WHITE);
+}