Struct ActiveSprite 

struct ActiveSprite {
    def_index: usize,
    eval: MilkEvaluator,
    initialised: bool,
    frame: u32,
    burn_pending: bool,
    finished: bool,
}

One running sprite instance.

Fields

def_index: usize

Index into SpriteManager::defs — used to recover the texture index without re-walking the def list each frame.

eval: MilkEvaluator

Per-instance variable state. The init block runs once on spawn; per_frame runs every tick.

initialised: bool

true after the first per_frame tick — used to gate the init block, which mustn’t re-run.

frame: u32

Frames since spawn. Exposed to the equations as frame.

burn_pending: bool

Burn-pending: set on the tick the sprite’s done variable goes truthy AND the def had burn=1. The renderer reads this on the next render to draw the sprite into render_texture once, then the manager prunes it.

finished: bool

true once done is set and we’ve already emitted the burn (if any). Pruned at end-of-frame.