Struct FieldVisualizer 

pub struct FieldVisualizer {
    pub config: FieldVizConfig,
    pub center: Vec2,
    pub active: bool,
    pub boss_overlays: Vec<BossFieldOverlay>,
    pub last_sample_us: u32,
    /* private fields */
}

Force field visualization system.

Maintains a grid of sample points, periodically re-samples the force field, and updates glyph positions/colors/characters to show the field state.

Fields

config: FieldVizConfig

Visualization configuration.

center: Vec2

Center of the visualization grid in world space.

active: bool

Whether the visualizer is currently active.

boss_overlays: Vec<BossFieldOverlay>

Active boss-specific overlays.

last_sample_us: u32

Performance: last sample time in microseconds.

Implementations

impl FieldVisualizer

pub fn new(center: Vec2, config: FieldVizConfig) -> Self

Create a new field visualizer centered at center.

pub fn set_center(&mut self, center: Vec2)

Re-center the visualization grid.

pub fn toggle(&mut self)

Toggle the visualizer on/off.

pub fn tick(&mut self, dt: f32, field_mgr: &FieldManager, time: f32)

Sample the force fields and update the grid.

field_mgr provides the combined field evaluation. time is the current scene time.

pub fn update_glyphs(&mut self, pool: &mut GlyphPool)

Spawn/update visualization glyphs in the glyph pool.

Call after tick(). Creates or updates glyphs for each sample point that exceeds the strength threshold.

pub fn despawn_all(&mut self, pool: &mut GlyphPool)

Despawn all visualization glyphs.

pub fn add_shockwave( &mut self, center: Vec2, speed: f32, max_radius: f32, strength: f32, )

Add an expanding shockwave ring.

pub fn add_gravity_well(&mut self, center: Vec2, radius: f32, ring_count: u32)

Add a gravity well visualization (concentric inward rings).

pub fn clear_gravity_wells(&mut self)

Remove all gravity wells.

pub fn add_boss_overlay(&mut self, overlay: BossFieldOverlay)

Add a boss-specific overlay.

pub fn clear_boss_overlays(&mut self)

Remove all boss overlays.

pub fn visible_count(&self) -> usize

Get the total number of visible arrow glyphs.

pub fn avg_strength(&self) -> f32

Get average field strength across the grid.

pub fn max_strength(&self) -> f32

Get maximum field strength on the grid.

impl FieldVisualizer

pub fn snapshot(&self) -> FieldSnapshot

Take a snapshot of the current grid state.