render map image

game/main/src/utlis/editor_plugin.rs

@@ -0,0 +1,49 @@
+use bevy::{prelude::*, render::render_asset::RenderAssetUsages};
+use bevy_inspector_egui::bevy_egui::EguiContexts;
+use bevy_inspector_egui::egui::{self};
+use world_generation::{map::map_utils::render_map, prelude::Map, states::GeneratorState};
+
+pub struct EditorPlugin;
+
+impl Plugin for EditorPlugin {
+	fn build(&self, app: &mut App) {
+		app.init_resource::<UIState>();
+
+		app.add_systems(PostUpdate, prepare_image.run_if(in_state(GeneratorState::SpawnMap)));
+		app.add_systems(Update, (render_map_ui).run_if(in_state(GeneratorState::Idle)));
+	}
+}
+
+#[derive(Resource)]
+struct MapImage(pub Handle<Image>);
+
+pub fn prepare_image(mut images: ResMut<Assets<Image>>, heightmap: Res<Map>, mut commands: Commands) {
+	let image = render_map(&heightmap, 0.1);
+	let handle = images.add(Image::from_dynamic(image.into(), true, RenderAssetUsages::RENDER_WORLD));
+
+	commands.insert_resource(MapImage(handle));
+}
+
+#[derive(Resource)]
+struct UIState {
+	pub is_open: bool,
+}
+
+impl Default for UIState {
+	fn default() -> Self {
+		Self { is_open: true }
+	}
+}
+
+fn render_map_ui(image: Res<MapImage>, mut contexts: EguiContexts, mut state: ResMut<UIState>) {
+	let id = contexts.add_image(image.0.clone_weak());
+
+	let ctx = contexts.ctx_mut();
+	egui::Window::new("Map").open(&mut state.is_open).show(ctx, |ui| {
+		ui.label("Map Test");
+		ui.add(egui::widgets::Image::new(egui::load::SizedTexture::new(
+			id,
+			[512.0, 512.0],
+		)));
+	});
+}