cursor animation

var Vector2 = class Vector2 {
    constructor (x, y) {
        this.x = x;
        this.y = y;
    }
}



const SCREEN_BOUNDARIES = {
    top: 0,
    left: 0,
    bottom: 100,
    right: 100
}

class Cursor {
    constructor () {
        this.position = new Vector2(SCREEN_BOUNDARIES.right/2,SCREEN_BOUNDARIES.bottom/2);
        this.velocity = new Vector2(0, 0);
        this.acceleration = new Vector2(0, 0);

        this.time = Date.now();
        this.deltaTime = 0;
        this.oldTime = Date.now();

        this.old = {
            time: 0,
            deltaTime: 0,
            velocity: new Vector2(0, 0),
            position: new Vector2(0, 0),
            acceleration: new Vector2(0, 0)
        };
    }

    func() {

    }

    defaultDVD() {
        this.position = new Vector2(Math.random() * SCREEN_BOUNDARIES.right, Math.random() * SCREEN_BOUNDARIES.bottom);
        this.velocity = new Vector2(1, 2);

        this.func = () => {
            this.time = Date.now();
            this.deltaTime = (this.time - this.old.time)/1000;

            this.position.x += this.velocity.x * this.deltaTime;
            this.position.y += this.velocity.y * this.deltaTime;

            if (this.position.y < SCREEN_BOUNDARIES.top || this.position.y > SCREEN_BOUNDARIES.bottom) {
                this.velocity.y = -this.velocity.y;
            }

            if (this.position.x < SCREEN_BOUNDARIES.left || this.position.x > SCREEN_BOUNDARIES.right) {
                this.velocity.x = -this.velocity.x;
            }

            this.old.time = Date.now();
        }
    }

    defaultLeaf() {
        this.position = new Vector2(SCREEN_BOUNDARIES.right/2, SCREEN_BOUNDARIES.top);
        this.velocity = new Vector2(1, 2);

        let angle = 0;

        let width = 5;

        this.func = () => {
            this.time = Date.now();
            this.deltaTime = (this.time - this.old.time)/1000;

            angle += 0.1;

            this.position.x = (((Math.floor(Math.sin(angle) * 100)/100) * width)) + 50;
            // console.log(angle + ": " + this.position.x);

            this.velocity.y = (Math.abs(this.old.position.x - this.position.x)/2) - Math.sin(angle*2)/((10 + 5)/width) + 0.01;

            this.position.y += this.velocity.y/1.5;

            if (this.position.y > SCREEN_BOUNDARIES.bottom) {
                this.position.y = SCREEN_BOUNDARIES.top;
            }

            this.old.position.x = this.position.x;
            this.old.time = Date.now();
        }
    }

    defaultFigure() {
        this.position = new Vector2(SCREEN_BOUNDARIES.right/2, SCREEN_BOUNDARIES.top);
        this.velocity = new Vector2(1, 2);

        let angle = 0;

        let width = 10;
        let height = 10;

        this.func = () => {
            this.time = Date.now();
            this.deltaTime = (this.time - this.old.time)/1000;

            angle += 0.1;

            this.position.x = (((Math.floor(Math.sin(angle) * 100)/100) * width)) + 50;
            // console.log(angle + ": " + this.position.x);

            this.velocity.y = 50 - height + (Math.sin(angle*2)/((10 + 5)/width) + 1) * height;

            this.position.y = this.velocity.y

            if (this.position.y > SCREEN_BOUNDARIES.bottom) {
                this.position.y = SCREEN_BOUNDARIES.top;
            }

            this.old.position.x = this.position.x;
            this.old.time = Date.now();
        }
    }

    defaultFigureB() {
        this.position = new Vector2(SCREEN_BOUNDARIES.right/2, SCREEN_BOUNDARIES.top);
        this.velocity = new Vector2(1, 2);

        let angle = 0;

        let width = 10;
        let height = 10;

        let r = 0;

        this.func = () => {
            this.time = Date.now();
            this.deltaTime = (this.time - this.old.time)/1000;

            angle += 0.1;

            this.position.x = ((Math.floor(Math.sin(2 * angle) * 100)/100) * width) + 50
            // console.log(angle + ": " + this.position.x);

            this.position.y = ((Math.floor(Math.sin(3 * angle) * 100)/100) * width) + 50

            if (this.position.y > SCREEN_BOUNDARIES.bottom) {
                this.position.y = SCREEN_BOUNDARIES.top;
            }

            this.old.position.x = this.position.x;
            this.old.time = Date.now();

        }
    }

    defaultFigureC() {
        this.position = new Vector2(SCREEN_BOUNDARIES.right/2, SCREEN_BOUNDARIES.bottom/2);
        this.velocity = new Vector2(1, 2);

        let angle = 0;

        let width = 10;
        let height = 10;

        let r = 0;

        let x = 50;
        let velx = 2/5;
        let vely = 2/7;
        let y = 50;

        this.func = () => {
            this.time = Date.now();
            this.deltaTime = (this.time - this.old.time)/1000;

            angle += 0.01;

            this.position.x = ((Math.floor(Math.sin(8 * angle) * 100)/100) * width) + x;
            // console.log(angle + ": " + this.position.x);

            this.position.y = ((Math.floor(Math.sin(13 * angle) * 100)/100) * width) + y;

            // if (this.position.y > SCREEN_BOUNDARIES.bottom) {
            //     this.position.y = SCREEN_BOUNDARIES.top;
            // }

            x += velx;
            y += vely;

            if (x > 90 || x < 10) {
                velx = -velx;
            }

            if (y > 90 || y < 10) {
                vely = -vely;
            }

            this.old.position.x = this.position.x;
            this.old.time = Date.now();
        }
    }

    rave() {
        this.position = new Vector2(SCREEN_BOUNDARIES.right/2, SCREEN_BOUNDARIES.bottom/2);
        this.velocity = new Vector2(1, 2);

        let angle = 0;

        let width = 10;
        let height = 10;

        let r = 0;

        this.func = () => {
            this.time = Date.now();
            this.deltaTime = (this.time - this.old.time)/1000;

            angle += 0.1;

            this.position.x = ((Math.floor(Math.cos(2 * angle) * 100)/100) * width) + 50
            // console.log(angle + ": " + this.position.x);

            this.position.y = ((Math.floor(Math.tan(3 * angle) * 100)/100) * width) + 50

            if (this.position.y > SCREEN_BOUNDARIES.bottom) {
                this.position.y = SCREEN_BOUNDARIES.top;
            }

            this.old.position.x = this.position.x;
            this.old.time = Date.now();

        }
    }
}