Tidy up buttons

Some prep for 3c1ce566939f54a0c8d5794033b4088c0c33cb91

src/components/markers.rs

@@ -2,11 +2,64 @@
 use bevy::ecs::component::Component;
 
 #[cfg(feature = "render")]
-#[derive(Component)]
-pub(crate) enum ToolbarButton {
+macro_rules! define_enum {
+    ($Name:ident { $($Variant:ident),* $(,)* }) =>
+    {
+        #[derive(Debug, Component, Copy, Clone)]
+        pub enum $Name {
+            $($Variant),*,
+        }
+        impl $Name {
+            pub const ITEMS: &'static [$Name] = &[$($Name::$Variant),*];
+        }
+    }
+}
+
+#[cfg(feature = "render")]
+define_enum!(ToolbarButton {
+    GenerateWorld,
+    SaveWorld,
+    LoadWorld,
     Rainfall,
     Temperature,
     Contours,
+});
+
+impl From<ToolbarButton> for &'static str {
+    fn from(button: ToolbarButton) -> Self {
+        match button {
+            ToolbarButton::Rainfall => "Toggle rainfall",
+            ToolbarButton::Temperature => "Toggle temperature",
+            ToolbarButton::Contours => "Toggle contours",
+            ToolbarButton::GenerateWorld => "Generate new world",
+            ToolbarButton::SaveWorld => "Save",
+            ToolbarButton::LoadWorld => "Load",
+        }
+    }
+}
+impl From<&ToolbarButton> for &'static str {
+    fn from(button: &ToolbarButton) -> Self {
+        match button {
+            ToolbarButton::Rainfall => "Toggle rainfall",
+            ToolbarButton::Temperature => "Toggle temperature",
+            ToolbarButton::Contours => "Toggle contours",
+            ToolbarButton::GenerateWorld => "Generate new world",
+            ToolbarButton::SaveWorld => "Save",
+            ToolbarButton::LoadWorld => "Load",
+        }
+    }
+}
+
+impl From<ToolbarButton> for String {
+    fn from(button: ToolbarButton) -> Self {
+        <&'static str>::from(button).into()
+    }
+}
+
+impl From<&ToolbarButton> for String {
+    fn from(button: &ToolbarButton) -> Self {
+        <&'static str>::from(button).into()
+    }
 }
 
 #[cfg(feature = "render")]

src/main.rs

@@ -149,6 +149,9 @@ fn handle_toolbar_button(
                         debug!("Toggling contours");
                         world_manager.toggle_contours();
                     }
+                    ToolbarButton::GenerateWorld => todo!(),
+                    ToolbarButton::SaveWorld => todo!(),
+                    ToolbarButton::LoadWorld => todo!(),
                 }
                 refresh_world_texture(&mut images, &world_manager)
             }
@@ -380,33 +383,15 @@ fn generate_graphics(
                     ..default()
                 })
                 .with_children(|button_box| {
+                    ToolbarButton::ITEMS.iter().for_each(|&button_type| {
                         _ = button_box
                             .spawn_bundle(toolbar_button())
                             .with_children(|button| {
-                            _ = button.spawn_bundle(toolbar_button_text(
-                                &asset_server,
-                                ToolbarButton::Rainfall,
-                            ));
+                                _ = button
+                                    .spawn_bundle(toolbar_button_text(&asset_server, button_type));
                             })
-                        .insert(ToolbarButton::Rainfall);
-                    _ = button_box
-                        .spawn_bundle(toolbar_button())
-                        .with_children(|button| {
-                            _ = button.spawn_bundle(toolbar_button_text(
-                                &asset_server,
-                                ToolbarButton::Temperature,
-                            ));
-                        })
-                        .insert(ToolbarButton::Temperature);
-                    _ = button_box
-                        .spawn_bundle(toolbar_button())
-                        .with_children(|button| {
-                            _ = button.spawn_bundle(toolbar_button_text(
-                                &asset_server,
-                                ToolbarButton::Contours,
-                            ));
-                        })
-                        .insert(ToolbarButton::Contours);
+                            .insert(button_type)
+                    });
                 });
         });
 }
@@ -445,20 +430,13 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         _ = manager.new_world()?
     }
 
+    _ = app.insert_resource(LogSettings {
         #[cfg(feature = "debug")]
-    {
-        _ = app.insert_resource(LogSettings {
         level: Level::DEBUG,
-            ..default()
-        });
-    }
         #[cfg(not(feature = "debug"))]
-    {
-        _ = app.insert_resource(LogSettings {
         level: Level::WARN,
         ..default()
     });
-    }
 
     app.add_plugins(WorldPlugins).insert_resource(manager).run();
 

src/ui_helpers.rs

@@ -3,6 +3,7 @@ use bevy::{
     asset::AssetServer,
     ecs::system::Res,
     render::color::Color,
+    text::{Text, TextStyle},
     ui::{
         entity::{ButtonBundle, TextBundle},
         widget::Button,
@@ -34,13 +35,9 @@ pub(crate) fn toolbar_button_text(
     which: ToolbarButton,
 ) -> TextBundle {
     TextBundle {
-        text: bevy::text::Text::from_section(
-            match which {
-                ToolbarButton::Rainfall => "Toggle rainfall",
-                ToolbarButton::Temperature => "Toggle temperature",
-                ToolbarButton::Contours => "Toggle contours",
-            },
-            bevy::text::TextStyle {
+        text: Text::from_section(
+            which,
+            TextStyle {
                 font: asset_server.load("JuliaMono.ttf"),
                 font_size: 20.0,
                 color: Color::WHITE,