Hands-on Rust

Displaying the Current Level on the HUD

Currently, the Heads-Up Display shows the player’s health and current inventory, but it doesn’t indicate the player’s current level. Adding the current level to the HUD can help players feel a sense of achievement when they see the number go up, so let’s add it.

The hud_system handles Heads-Up Display rendering. Open systems/hud.rs, and add the following code (just before you start displaying the player’s inventory):

DeeperDungeons/more_levels/src/systems/hud.rs

let (player, map_level) = <(Entity, &Player)>::query()
    .iter(ecs)
    .find_map(|(entity, player)| Some((*entity, player.map_level)))
    .unwrap();

draw_batch.print_color_right(
    Point::new(SCREEN_WIDTH*2, 1),
 format!( ...