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Specify the maximum number of fireworks to start #117

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Specify the maximum number of fireworks to start #117

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14 changes: 12 additions & 2 deletions packages/fireworks-js/src/fireworks.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,8 @@ export class Fireworks {
private explosions: Explosion[] = []
private waitStopRaf: (() => void) | null
private running = false
private maxFireworks: number
private startedSoFar: number

private readonly opts: Options
private readonly sound: Sound
Expand Down Expand Up @@ -62,14 +64,16 @@ export class Fireworks {
return this.opts
}

start(): void {
start(maxFireworks = -1): void {
if (this.running) return

if (!this.canvas.isConnected) {
this.createCanvas(this.target)
}

this.running = true
this.maxFireworks = maxFireworks;
this.startedSoFar = 0;
this.resize.mount()
this.mouse.mount()
this.raf.mount()
Expand Down Expand Up @@ -226,7 +230,12 @@ export class Fireworks {
}

private initTrace(): void {
if (this.waitStopRaf) return
let maxReached = (this.maxFireworks >= 0 && this.startedSoFar >= this.maxFireworks);
if (maxReached) {
this.waitStop();
}

if (this.waitStopRaf || maxReached) return

const { delay, mouse } = this.opts
if (
Expand All @@ -235,6 +244,7 @@ export class Fireworks {
) {
this.createTrace()
this.raf.tick = 0
this.startedSoFar++;
}
}

Expand Down