const MAX_SPEED = 3;
const MAX_JUMP = 2;
const G = 10;

const MAX_FRAME = 9;

class Box {
    constructor() {
        this.size = 0.2;

        // Animate can be -1, 0, or 1
        this.animate = 0;
        this.frameNumber = 0;
        this.reset();
    }

    reset() {
        // All these values are in percentage of the screen
        this.x = 0.5;
        this.y = 0;

        this.speedX = 0;
        this.speedY = 0;

        this.jumpCounter = MAX_JUMP;
    }

    update(time = 0.02) {

        if (this.animate !== 0) {
            this.frameNumber += this.animate;

            if (this.frameNumber === MAX_FRAME) {
                this.animate = -1;
            } else if (this.frameNumber === 0) {
                this.animate = 0;
            }
        }

        this.speedX *= 0.95;

        this.speedY -= G * time;
        this.speedY = Math.max(this.speedY, -MAX_SPEED);

        this.x += this.speedX * time;
        this.y += this.speedY * time;
    }

    collide(y) {
        this.y = y;
        this.speedX = 0;
        this.speedY = 0;
        this.jumpCounter = MAX_JUMP;
    }

    jump(_x, _y) {
        // Put x between -1 and 1
        let x = (_x - this.x) * 2;
        let y = _y;

        if (this.jumpCounter == MAX_JUMP) {
            // Trigger animation
            this.animate = 1;
        }

        if (this.jumpCounter > 0) {
            this.jumpCounter--;
            this.speedX = MAX_SPEED * x * 0.8;
            this.speedY = MAX_SPEED;
        }

    }
}

Box.texture = new Image();
Box.texture.src = "img/griezmann.png"