the-world-engine/dist/esm/engine/script/ai/PathfindTest.js

three.js based, unity like game engine for browser

import { Vector3 } from "three/src/Three";

import { Component } from "../../hierarchy_object/Component";

import { CssSpriteRenderer } from "../render/CssSpriteRenderer";

import { Pathfinder } from "./pathfind/Pathfinder";

export class PathfindTest extends Component {
    Pr=null;
    Cr=null;
    Er=null;
    Ir=null;
    Mr=[];
    Sr=this.Tr.bind(this);
    start() {
        if (this.Pr === null) {
            throw new Error("Player not set");
        }
        if (this.Cr === null) {
            throw new Error("Collide maps not set");
        }
        if (this.Er === null) {
            throw new Error("Grid pointer not set");
        }
        this.Ir = new Pathfinder(this.Cr);
        this.Er.onPointerDown.addListener(this.Sr);
    }
    onDestroy() {
        this.Er?.onPointerDown.removeListener(this.Sr);
    }
    Tr(t) {
        const e = this.Pr.positionInGrid;
        const r = t.gridPosition;
        const i = this.Ir.findPath(e, r);
        this.Br();
        if (i) {
            for (let t = 0; t < i.length; ++t) {
                const e = i[t];
                this.Gr(e.x * this.Cr[0].gridCellWidth, e.y * this.Cr[0].gridCellHeight);
            }
        }
    }
    Gr(t, e) {
        const r = {
            ref: null
        };
        this.gameObject.addChildFromBuilder(this.engine.instantiater.buildGameObject("debug-image", new Vector3(t, e, 1e4)).withComponent(CssSpriteRenderer, (t => t.opacity = .5)).getGameObject(r));
        this.Mr.push(r.ref);
    }
    Br() {
        const t = this.Mr;
        for (let e = 0; e < t.length; ++e) {
            t[e].destroy();
        }
        t.length = 0;
    }
    get player() {
        return this.Pr;
    }
    set player(t) {
        this.Pr = t;
    }
    get collideMaps() {
        return this.Cr;
    }
    set collideMaps(t) {
        this.Cr = t;
    }
    get gridPointer() {
        return this.Er;
    }
    set gridPointer(t) {
        this.Er = t;
    }
}