function Fire(context, sprite, controlButtons, controlButtonsIds, monsters, player, isPlayer, posX, posY) {
    this.context = context;
    this.sprite = sprite;
    this.monsters = monsters;
    this.player = player;
    this.controlButtons = controlButtons;
    this.controlButtonsIds = controlButtonsIds;

    this.isSoundPlayed = false;
    this.isPlayer = isPlayer;
    this.isExploded = false;
    this.isRemoved = false;
    this.wait = 0;

    if(isPlayer) {
        this.srcX = 151;
        this.srcY = 0;
        this.speed = 7;
    } else {
        this.srcX = 101;
        this.srcY = 0;
        this.speed = 2 + Math.round(Math.random() * 4);
    }

    this.width = 20;
    this.height = 20;
    this.offsetX = posX;
    this.offsetY = posY;
}

Fire.prototype.draw = function() {
    this.update();

    if(!this.isRemoved && !this.player.isDead) {
        this.context.drawImage(this.sprite, this.srcX, this.srcY, this.width, this.height, this.offsetX, this.offsetY, this.width, this.height);
    }
};

Fire.prototype.update = function() {
    if(this.wait >= 0 && !this.isExploded) {
        if(this.isPlayer) {
            this.offsetY -= this.speed;

            for(var i = 0; i < this.monsters.length; i++) {
                if(this.offsetX <= this.monsters[i].offsetX + this.monsters[i].width && this.offsetX + this.width >= this.monsters[i].offsetX &&
                   this.offsetY <= this.monsters[i].offsetY + this.monsters[i].height && this.offsetY + this.height >= this.monsters[i].offsetY && !this.isExploded
                   && !this.monsters[i].isDead) {
                    this.isExploded = true;
                    this.wait = 35;

                    var health = this.monsters[i].getHealth() - this.player.getFireDamage();
                    this.monsters[i].setHealth(health);
                }
            }
        } else {
            this.offsetY += this.speed;

            if(this.offsetX <= this.player.offsetX + this.player.width && this.offsetX + this.width >= this.player.offsetX &&
               this.offsetY <= this.player.offsetY + this.player.height && this.offsetY + this.height >= this.player.offsetY && !this.isExploded
               && !this.player.isDead) {
                this.isExploded = true;
                this.wait = 35;

                var health = this.player.getHealth() - 1;
                this.player.setHealth(health);
            }
        }
    }

    if(!this.isSoundPlayed && this.controlButtons[this.controlButtonsIds['sound']].isChecked) {
        this.isSoundPlayed = true;
        var fireSound = new Audio('sounds/fire.ogg');
        fireSound.volume = 0.2;
        fireSound.currentTime = 0;
        fireSound.play();
    }

    if(this.isExploded && this.wait > 0) {
        this.height = 30;
        this.width = 30;

        if(this.isPlayer) {
            this.srcX = 171;
            this.srcY = 0;
        } else {
            this.srcX = 121;
            this.srcY = 0;
        }


        this.wait--;
    }

    if(this.isExploded && this.wait <= 0) {
        this.isRemoved = true;
    }
};