the-world-engine/dist/esm/engine/collection/EventContainer.js

three.js based, unity like game engine for browser

class LinkedListNode {
    value;
    next=null;
    prev=null;
    constructor(t) {
        this.value = t;
    }
}

class LinkedList {
    tt;
    et;
    it;
    constructor() {
        this.tt = null;
        this.et = null;
        this.it = 0;
    }
    get length() {
        return this.it;
    }
    add(t) {
        const e = new LinkedListNode(t);
        if (this.tt === null) {
            this.tt = e;
            this.et = e;
        } else {
            this.et.next = e;
            e.prev = this.et;
            this.et = e;
        }
        this.it += 1;
    }
    st(t) {
        if (t.prev !== null) {
            t.prev.next = t.next;
        } else {
            this.tt = t.next;
        }
        if (t.next !== null) {
            t.next.prev = t.prev;
        } else {
            this.et = t.prev;
        }
        this.it -= 1;
    }
    remove(t) {
        let e = this.tt;
        while (e !== null) {
            if (e.value === t) {
                this.st(e);
                return;
            }
            e = e.next;
        }
    }
    removeAll() {
        this.tt = null;
        this.et = null;
        this.it = 0;
        this.lt = true;
    }
    lt=false;
    forEach(t) {
        this.lt = false;
        let e = this.tt;
        while (e !== null) {
            t(e.value);
            if (this.lt) {
                if (this.tt === null) {
                    return;
                } else {
                    e = this.tt;
                    this.lt = false;
                }
            } else {
                e = e.next;
            }
        }
    }
}

export class EventContainer {
    ht;
    constructor() {
        this.ht = new LinkedList;
    }
    addListener(t) {
        this.ht.add(t);
    }
    removeListener(t) {
        this.ht.remove(t);
    }
    removeAllListeners() {
        this.ht.removeAll();
    }
    invoke(...t) {
        this.ht.forEach((e => {
            e(...t);
        }));
    }
    get length() {
        return this.ht.length;
    }
}