Add debug demo, make objects visible in ortho map

Default points to 1.0 size objects, for fallback and visibility

assets/ortho-map.tmx

@@ -204,7 +204,7 @@
    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
   </data>
  </layer>
- <objectgroup id="3" name="Objects" visible="0">
+ <objectgroup id="3" name="Objects">
   <object id="1" name="maggots" type="location" x="435" y="74" width="155" height="99">
    <properties>
     <property name="spawncount" type="int" value="5"/>

examples/ortho_objects.rs

@@ -0,0 +1,43 @@
+use bevy::prelude::*;
+use bevy_tiled_prototype::{DebugConfig, Object, TiledMapCenter};
+
+// this example demonstrates debugging objects
+
+const SCALE: f32 = 2.0;
+
+fn main() {
+    App::build()
+        .add_plugins(DefaultPlugins)
+        .add_plugin(bevy_tiled_prototype::TiledMapPlugin)
+        .add_system(bevy::input::system::exit_on_esc_system.system())
+        .add_system(toggle_debug.system())
+        .add_startup_system(setup.system())
+        .run();
+}
+
+fn setup(commands: &mut Commands, asset_server: Res<AssetServer>) {
+    commands
+        .spawn(bevy_tiled_prototype::TiledMapComponents {
+            map_asset: asset_server.load("ortho-map.tmx"),
+            center: TiledMapCenter(true),
+            origin: Transform::from_scale(Vec3::new(SCALE, SCALE, 1.0)),
+            debug_config: DebugConfig {
+                enabled: true,
+                material: None,
+
+            },
+            ..Default::default()
+        })
+        .spawn(Camera2dBundle::default());
+}
+
+fn toggle_debug(
+    keyboard_input: Res<Input<KeyCode>>,
+    mut query: Query<&mut Visible, With<Object>>,
+) {
+    for mut visible in query.iter_mut() {
+        if keyboard_input.just_released(KeyCode::Space) {
+            visible.is_visible = !visible.is_visible;
+        }
+    }
+}

src/map.rs

@@ -572,7 +572,7 @@ impl Object {
             tiled::ObjectShape::Ellipse { width , height } => Some(Vec2::new(width, height)),
             tiled::ObjectShape::Polyline { points: _ } |
             tiled::ObjectShape::Polygon { points: _ } |
-            tiled::ObjectShape::Point(_, _) => None,
+            tiled::ObjectShape::Point(_, _) => Some(Vec::splat(1.0)),
         }
     }
 }