HeatPlate.prototype = Object.create(Phaser.Sprite.prototype);
HeatPlate.prototype.constructor = HeatPlate;

function HeatPlate() {
	Phaser.Sprite.call(this, game, HeatPlate.POSITION_X, HeatPlate.POSITION_Y, 'heat_plate');
	this.anchor.set(0.5);
	this.smoothed = false;
	this.inputEnabled = false;
	game.add.existing(this);

	this.spriteFlame = game.make.sprite(0, 0, "heat_plate_flame");
	this.spriteFlame.anchor.set(0.5, 0.65);
	this.spriteFlame.smoothed = false;
	this.spriteFlame.alpha = 0.3;

	this.addChild(this.spriteFlame);
	this.setBurnLevel(HeatPlate.BURN_LEVEL_WEAK);
	game.add.tween(this.spriteFlame).to( { alpha: 0.8 }, 2000, Phaser.Easing.Linear.None, true, 0, 1000, true);
}


HeatPlate.prototype.setBurnLevel = function(burlLevel) {
	this.burnLevel = burlLevel;

	switch(this.burnLevel) {
		case HeatPlate.BURN_LEVEL_WEAK:
		this.spriteFlame.tint = HeatPlate.BURN_COLOR_WEAK;
		break;

		case HeatPlate.BURN_LEVEL_NORMAL:
		this.spriteFlame.tint = HeatPlate.BURN_COLOR_NORMAL;
		break;

		case HeatPlate.BURN_LEVEL_STRONG:
		this.spriteFlame.tint = HeatPlate.BURN_COLOR_STRONG;
		break;
	}
}

HeatPlate.prototype.onChangeDialLevel = function(dialLevel) {
	this.setBurnLevel(dialLevel);
}

HeatPlate.prototype.isOver = function(x, y) {
	var halfWidth = (this.width - HeatPlate.HANDLE_WIDTH) / 2;
	var halfHeight = this.height / 2;

	if(x < this.x - halfWidth) {
		return false;
	} else if(this.x + halfWidth < x) {
		return false;
	} else if(y < this.y - halfHeight + HeatPlate.START_OFFSET_Y) {
		return false;
	} else if(this.y + halfHeight + HeatPlate.START_OFFSET_Y - HeatPlate.HEIGHT < y) {
		return false;
	}

	return true;
}



HeatPlate.POSITION_X			= GAME_SCREEN_SIZE.x / 2 + 70;
HeatPlate.POSITION_Y			= GAME_SCREEN_SIZE.y / 2 + 180;

HeatPlate.HANDLE_WIDTH		= 440;
HeatPlate.START_OFFSET_Y	= 80;
HeatPlate.HEIGHT			= 220;


HeatPlate.BURN_LEVEL_WEAK		= 0;
HeatPlate.BURN_LEVEL_NORMAL		= 1;
HeatPlate.BURN_LEVEL_STRONG		= 2;

HeatPlate.BURN_COLOR_WEAK		= 0xfd9466;
HeatPlate.BURN_COLOR_NORMAL		= 0xbd5915;
HeatPlate.BURN_COLOR_STRONG		= 0xcd0030;