src/game.rs

@@ -8,14 +8,17 @@ use crate::{
 #[derive(Debug)]
 pub struct Gost {
 	/// current electric charge of the Ghost
-	charge: u32,
+	pub charge: f32,
 	/// max electric charge of the Ghost
-	max_charge: u32,
+	pub max_charge: f32
 }
 
 impl Default for Gost {
 	fn default() -> Self {
-		Self { charge: 100, max_charge: 100 }
+		Self {
+			charge: 1000.0,
+			max_charge: 1000.0
+		}
 	}
 }
 

src/main.rs

@@ -11,14 +11,14 @@ const GAME_NAME: &str = "Powercreep";
 #[derive(Debug)]
 struct State {
 	activity: Activity,
-	gohst:  Gost,
+	gohst: Gost
 }
 
 impl Default for State {
 	fn default() -> Self {
 		Self {
 			activity: Activity::House,
-			gohst: Default::default(),
+			gohst: Default::default()
 		}
 	}
 }

src/ui.rs

@@ -1,17 +1,31 @@
-use comfy::egui::Pos2;
-use comfy::egui::Rect;
-use comfy::EngineContext;
-use comfy::egui;
-use comfy::GREEN;
-use comfy::RED;
 use crate::State;
+use comfy::{
+	draw_rect, draw_rect_outline, screen_height, screen_to_world, screen_width,
+	EngineContext, Vec2, BLUE, RED
+};
 
 pub fn draw(state: &State, engine: &EngineContext) {
-    egui::Area::new("batterie_show")
-    .anchor(egui::Align2::RIGHT_BOTTOM, egui::vec2(0.0, 0.0))
-    .show(egui(), |ui| {
-        let painter = ui.painter();
-        painter.rect(Rect{min: Pos2::new(0.0, 0.0), max: Pos2::new(32.0, 32.0)}, 0.0, RED, (4.0, GREEN));
-        
-    });
-}
+	// seperate fill state into smaller section for better readability
+	let section_count = 5;
+	let mut start_positon = screen_to_world(Vec2::new(screen_width(), screen_height()));
+	// section size in world codinates
+	let section_size = Vec2::new(0.5, 0.25);
+	start_positon.x -= 0.5 * section_size.x + 0.5 * section_size.y;
+	start_positon.y += 0.5 * section_size.y + 0.5 * section_size.y;
+	// draw fill level
+	{
+		let gohst = &state.gohst;
+		let percent = gohst.charge / gohst.max_charge;
+		let mut size = section_size;
+		size.y = section_size.y * section_count as f32 * percent;
+		let mut position = start_positon;
+		position.y += 0.5 * -section_size.y + 0.5 * size.y;
+		draw_rect(position, size, BLUE, 100);
+	}
+	// draw sections
+	for i in 0 .. section_count {
+		let mut position = start_positon;
+		position.y += i as f32 * section_size.y;
+		draw_rect_outline(position, section_size, 0.1, RED, 100);
+	}
+}