World grid drawing correctly

src/main.rs

@@ -87,18 +87,6 @@ fn setup(mut commands: Commands, mut meshes: ResMut<Assets<Mesh>>, mut materials
         Agent
     ));
     
-    // Line test
-    let line = shapes::Line(Vec2::ZERO, Vec2::new(100.0, 100.0));
-    commands.spawn((
-        ShapeBundle {
-            path: GeometryBuilder::build_as(&line),
-            ..default()
-        },
-        Stroke::new(Color::ORANGE_RED, 5.0),
-        //Fill::color(Color::ORANGE_RED),
-    ));
-
-
     // UI
     // Text with multiple sections
     commands.spawn((

src/world.rs

@@ -2,6 +2,9 @@
 use bevy::prelude::*;
 use bevy_prototype_lyon::prelude::*;
 
+#[derive(Component)]
+struct IsLine;
+
 #[derive(Resource)]
 struct WorldPluginState
 {
@@ -40,34 +43,40 @@ impl Plugin for WorldPlugin
     }
 }
 
-fn setup(mut commands: Commands, settings: Res<WorldPluginState>, mut meshes: ResMut<Assets<Mesh>>, mut materials: ResMut<Assets<ColorMaterial>>)
+fn setup(mut commands: Commands, settings: Res<WorldPluginState>)
 {
-    // Camera
-    //commands.spawn(Camera2dBundle::default());
 
     // Add Grid
-    // let cell_width = settings.window_width / settings.grid_width;
-    // let cell_height = settings.window_height / settings.grid_height;
-    // let line_size = 2;
-    // for i in 0..settings.grid_width as i32
-    // {
-    //     for j in 0..settings.grid_height as i32
-    //     {
-            
-    //     }
-    // }
+    let cell_width = settings.window_width / settings.grid_width;
+    let cell_height = settings.window_height / settings.grid_height;
+    let line_size = 2.0;
+    let half_screen_width = settings.window_width / 2.0;
+    let half_screen_height = settings.window_height / 2.0;
+    for i in 0..settings.grid_width as i32
+    {
+        let point_a = Vec2::new(i as f32 * cell_width - half_screen_width, -half_screen_height);
+        let point_b = Vec2::new(i as f32 * cell_width - half_screen_width, half_screen_height);
+        add_line(&mut commands, point_a, point_b, line_size);        
     }
 
-// fn add_line(mut commands: Commands, point_a: Vec2, point_b: Vec2, line_size: i32)
-// {
+    for i in 0..settings.grid_height as i32
+    {
+        let point_a = Vec2::new(-half_screen_width, i as f32 * cell_height - half_screen_height);
+        let point_b = Vec2::new(half_screen_width, i as f32 * cell_height - half_screen_height);
+        add_line(&mut commands, point_a, point_b, line_size);      
+    }
+}
 
+fn add_line(commands: &mut Commands, point_a: Vec2, point_b: Vec2, line_size: f32)
+{
+    let line = shapes::Line(point_a, point_b);
 
-//     commands.spawn(MaterialMesh2dBundle {
-//         mesh: meshes
-//             .add(shape::Quad::new(Vec2::new(cell_width * i, cell_height * j)).into())
-//             .into(),
-//         material: materials.add(ColorMaterial::from(Color::BLACK)),
-//         transform: Transform::from_translation(Vec3::new(50., 0., 0.)),
-//         ..default()
-//     });
-// }
+    commands.spawn((
+        ShapeBundle {
+            path: GeometryBuilder::build_as(&line),
+            ..default()
+        },
+        Stroke::new(Color::BLACK, line_size),
+        IsLine,
+    ));
+}