the-world-engine/dist/esm/box2d.ts/build/particle/b2_stack_queue.js

three.js based, unity like game engine for browser

export class b2StackQueue {
    constructor(t) {
        this.m_buffer = [];
        this.m_front = 0;
        this.m_back = 0;
        this.m_buffer.fill(null, 0, t);
    }
    get m_capacity() {
        return this.m_buffer.length;
    }
    Push(t) {
        if (this.m_back >= this.m_capacity) {
            for (let t = this.m_front; t < this.m_back; t++) {
                this.m_buffer[t - this.m_front] = this.m_buffer[t];
            }
            this.m_back -= this.m_front;
            this.m_front = 0;
        }
        this.m_buffer[this.m_back] = t;
        this.m_back++;
    }
    Pop() {
        this.m_buffer[this.m_front] = null;
        this.m_front++;
    }
    Empty() {
        return this.m_front === this.m_back;
    }
    Front() {
        const t = this.m_buffer[this.m_front];
        if (!t) {
            throw new Error;
        }
        return t;
    }
}