class Loader{

    constructor(dom){
        this.dim = createVector($(dom).width(), $(dom).height());
        this.c = createGraphics(this.dim.x, this.dim.y);
        this.c.parent(dom);
        this.radius = min(this.dim.x, this.dim.y) * 0.4;
        this.center = createVector(this.dim.x / 2, this.dim.y / 2);
        $(dom).find('canvas').show();
        this.angle = 0;
    }

    update(){
        this.angle += PI / 10;
    }

    display(){
        let c = this.c;
        c.clear();
        c.noFill();
        c.stroke(0);
        c.strokeWeight(5);
        c.arc(this.center.x, this.center.y, this.radius * 2, this.radius * 2, this.angle, this.angle + PI + HALF_PI);
    }

    destroy(){
        this.c.remove();
    }

}