the-world-engine/dist/esm/box2d.ts/build/dynamics/b2_time_step.js

three.js based, unity like game engine for browser

import { b2MakeArray } from "../common/b2_settings.js";

import { b2Vec2 } from "../common/b2_math.js";

export class b2Profile {
    constructor() {
        this.step = 0;
        this.collide = 0;
        this.solve = 0;
        this.solveInit = 0;
        this.solveVelocity = 0;
        this.solvePosition = 0;
        this.broadphase = 0;
        this.solveTOI = 0;
    }
    Reset() {
        this.step = 0;
        this.collide = 0;
        this.solve = 0;
        this.solveInit = 0;
        this.solveVelocity = 0;
        this.solvePosition = 0;
        this.broadphase = 0;
        this.solveTOI = 0;
        return this;
    }
}

export class b2TimeStep {
    constructor() {
        this.dt = 0;
        this.inv_dt = 0;
        this.dtRatio = 0;
        this.velocityIterations = 0;
        this.positionIterations = 0;
        this.particleIterations = 0;
        this.warmStarting = false;
    }
    Copy(t) {
        this.dt = t.dt;
        this.inv_dt = t.inv_dt;
        this.dtRatio = t.dtRatio;
        this.positionIterations = t.positionIterations;
        this.velocityIterations = t.velocityIterations;
        this.particleIterations = t.particleIterations;
        this.warmStarting = t.warmStarting;
        return this;
    }
}

export class b2Position {
    constructor() {
        this.c = new b2Vec2;
        this.a = 0;
    }
    static MakeArray(t) {
        return b2MakeArray(t, (t => new b2Position));
    }
}

export class b2Velocity {
    constructor() {
        this.v = new b2Vec2;
        this.w = 0;
    }
    static MakeArray(t) {
        return b2MakeArray(t, (t => new b2Velocity));
    }
}

export class b2SolverData {
    constructor() {
        this.step = new b2TimeStep;
    }
}