# StartCountdownRun

> Talos 0.7 · Since 0.7

The 3-2-1-GO!

controller `startCountdown` hands back.

## Signature

```ts
export class StartCountdownRun {
  constructor(ctx: Ctx<any, any>, options: StartCountdownOptions = {})
  get phase(): CountdownPhase
  get started(): boolean
  get holding(): boolean
  start(): void
  update(dt: number): void
}
```

Import: `import { StartCountdownRun } from "@argus/gameplay"`

## Members

| Member | Signature | Description |
|---|---|---|
| `constructor` | `constructor(ctx: Ctx<any, any>, options: StartCountdownOptions = {})` | A countdown for the behaviour that owns `ctx`, idle until `start()`; `startCountdown(ctx, options)` is the same. |
| `phase` | `get phase(): CountdownPhase` | What it shows now. |
| `started` | `get started(): boolean` | The start event has fired. |
| `holding` | `get holding(): boolean` | The input context is held until GO!. |
| `start` | `start(): void` | Begin (or restart) the count from the first figure, shown at once. |
| `update` | `update(dt: number): void` | One tick. Before `start()` and after the end it does nothing. |