Struct UiLayer 

pub struct UiLayer {
    pub screen_width: f32,
    pub screen_height: f32,
    pub char_width: f32,
    pub char_height: f32,
    pub enabled: bool,
    /* private fields */
}

The screen-space UI layer. Collects draw commands each frame, then renders them all in a single pass with an orthographic projection.

Fields

screen_width: f32

Screen dimensions (updated on resize).

screen_height: f32

char_width: f32

Character cell dimensions in screen pixels.

char_height: f32

enabled: bool

Whether the UI layer is enabled.

Implementations

impl UiLayer

pub fn new(screen_width: f32, screen_height: f32) -> Self

pub fn resize(&mut self, width: f32, height: f32)

Update screen dimensions (call on resize).

pub fn set_char_size(&mut self, width: f32, height: f32)

Set the character cell size in screen pixels.

pub fn begin_frame(&mut self)

Clear all queued commands. Call at the start of each frame.

pub fn projection(&self) -> Mat4

Get the orthographic projection matrix for this UI layer. Maps (0,0) at top-left to (screen_width, screen_height) at bottom-right.

pub fn draw_queue(&self) -> &[UiDrawCommand]

Get the draw queue for rendering.

pub fn command_count(&self) -> usize

Number of pending draw commands.

pub fn draw_text(&mut self, x: f32, y: f32, text: &str, scale: f32, color: Vec4)

Draw text at screen coordinates.

pub fn draw_text_glowing( &mut self, x: f32, y: f32, text: &str, scale: f32, color: Vec4, emission: f32, )

Draw text with emission (for bloom-capable UI text).

pub fn draw_text_aligned( &mut self, x: f32, y: f32, text: &str, scale: f32, color: Vec4, align: TextAlign, )

Draw text with alignment.

pub fn draw_centered_text( &mut self, y: f32, text: &str, scale: f32, color: Vec4, )

Draw centered text (centers horizontally at the given y).

pub fn draw_wrapped_text( &mut self, x: f32, y: f32, max_width: f32, text: &str, scale: f32, color: Vec4, )

Draw word-wrapped text within a max width (in pixels).

pub fn measure_text(&self, text: &str, scale: f32) -> (f32, f32)

Measure text dimensions in screen pixels.

pub fn draw_rect( &mut self, x: f32, y: f32, w: f32, h: f32, color: Vec4, filled: bool, )

Draw a filled or outlined rectangle.

pub fn draw_panel( &mut self, x: f32, y: f32, w: f32, h: f32, border: BorderStyle, fill_color: Vec4, border_color: Vec4, )

Draw a panel with a border and optional fill.

pub fn draw_bar( &mut self, x: f32, y: f32, w: f32, h: f32, fill_pct: f32, fill_color: Vec4, bg_color: Vec4, )

Draw a progress bar using █ and ░ characters.

pub fn draw_bar_with_ghost( &mut self, x: f32, y: f32, w: f32, h: f32, fill_pct: f32, fill_color: Vec4, bg_color: Vec4, ghost_pct: f32, ghost_color: Vec4, )

Draw a progress bar with a ghost bar (recent damage indicator).

pub fn draw_sprite(&mut self, x: f32, y: f32, lines: &[&str], color: Vec4)

Draw multi-line ASCII art sprite.