/*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
**]  All rights reserved.
*
* vi:ts=4 sw=4 tw=75
*
* Distributable under the terms and conditions of the 2-clause BSD license;
* see the file COPYING for a complete text of the license.
*
**************************************************************************/

#ifndef _HUD_HH_
#define _HUD_HH_

/**
 * @file Hud.hh
 * Heads-up Display
 */

#include <Moof/Drawable.hh>
#include <Moof/Layer.hh>
#include <Moof/Math.hh>
#include <Moof/Rectangle.hh>
#include <Moof/Texture.hh>

#include "GameState.hh"


// TODO this stuff is still just hacked up

class ProgressBar : public Mf::Drawable
{
public:

	ProgressBar(const Mf::Texture& tilemap, Mf::Texture::TileIndex index);

	void resize(const Mf::Rectangle& rect);

	void setProgress(Mf::Scalar progress);

	void draw(Mf::Scalar alpha = 0.0) const;

private:

	Mf::Scalar	mProgress;

	Mf::Vector2	mVertices[8];
	Mf::Scalar	mWidth;

	Mf::Texture	mTilemap;
	Mf::Scalar	mTexCoords[8];
	Mf::Scalar	mMidCoords[2];
};


class Hud;
typedef boost::shared_ptr<Hud> HudP;

class Hud : public Mf::Layer
{
public:

	Hud(GameState& state);

	static HudP alloc(GameState& state)
	{
		return HudP(new Hud(state));
	}

	void setBar1Progress(Mf::Scalar progress)
	{
		// pass through
		mBar1.setProgress(progress);
	}

	void setBar2Progress(Mf::Scalar progress)
	{
		// pass through
		mBar2.setProgress(progress);
	}

	void setNumber(unsigned value);

	void resize(int width, int height);

	void update(Mf::Scalar t, Mf::Scalar dt);
	void draw(Mf::Scalar alpha = 0.0) const;
	bool handleEvent(const Mf::Event& event);

private:

	GameState&	mState;

	ProgressBar	mBar1;
	ProgressBar	mBar2;

	unsigned	mNumber;
	Mf::Texture	mFont;

	Mf::Matrix4	mProjection;
};


#endif // _HUD_HH_