obstacle.js

class Obstacle {
    constructor (height, width, floorHeight) {
        this.height = height;
        this.width = width;
        this.floorHeight = floorHeight;

        this.w = 20;
        this.h = random ([20, 20, 20, 20, 40]);

        this.x = this.width - this.w;
        this.y = 0;

        this.xspeed = -4;

    }

    show () {
        noStroke();
        fill(204);
        var yRect = this.height - this.floorHeight - this.h - this.y;
        rect (this.x, yRect, this.w, this.h);
    }

    update () {
        this.x = this.x + this.xspeed;
    }

    outOfScreen () {
        return (this.x + this.w < 0);
    }

    getX () {
        return this.x;
    }

    getY () {
        return this.y;
    }

    getW () {
        return this.w;
    }

    getH () {
        return this.h;
    }
}