/*************************************************************************/
/*  input.h                                                              */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#ifndef INPUT_H
#define INPUT_H

#include "object.h"
#include "os/thread_safe.h"
#include "os/main_loop.h"

class Input : public Object {

	OBJ_TYPE( Input, Object );

	static Input *singleton;

protected:

	static void _bind_methods();
public:

	enum MouseMode {
		MOUSE_MODE_VISIBLE,
		MOUSE_MODE_HIDDEN,
		MOUSE_MODE_CAPTURED
	};

	void set_mouse_mode(MouseMode p_mode);
	MouseMode get_mouse_mode() const;

	static Input *get_singleton();

	virtual bool is_key_pressed(int p_scancode)=0;	
	virtual bool is_mouse_button_pressed(int p_button)=0;
	virtual bool is_joy_button_pressed(int p_device, int p_button)=0;
	virtual bool is_action_pressed(const StringName& p_action)=0;

	virtual float get_joy_axis(int p_device,int p_axis)=0;

	virtual Point2 get_mouse_pos() const=0;
	virtual Point2 get_mouse_speed() const=0;
	virtual int get_mouse_button_mask() const=0;

	virtual Vector3 get_accelerometer()=0;

	virtual void action_press(const StringName& p_action)=0;
	virtual void action_release(const StringName& p_action)=0;

	Input();
};

VARIANT_ENUM_CAST(Input::MouseMode);

class InputDefault : public Input {

	OBJ_TYPE( InputDefault, Input );
	_THREAD_SAFE_CLASS_

	int mouse_button_mask;
	Set<int> keys_pressed;
	Set<int> joy_buttons_pressed;
	Map<int,float> joy_axis;
	Map<StringName,int> custom_action_press;
	Vector3 accelerometer;
	Vector2 mouse_pos;
	MainLoop *main_loop;

	struct SpeedTrack {

		uint64_t last_tick;
		Vector2 speed;
		Vector2 accum;
		float accum_t;
		float min_ref_frame;
		float max_ref_frame;

		void update(const Vector2& p_delta_p);
		void reset();
		SpeedTrack();
	};

	SpeedTrack mouse_speed_track;

public:



	virtual bool is_key_pressed(int p_scancode);
	virtual bool is_mouse_button_pressed(int p_button);
	virtual bool is_joy_button_pressed(int p_device, int p_button);
	virtual bool is_action_pressed(const StringName& p_action);

	virtual float get_joy_axis(int p_device,int p_axis);

	virtual Vector3 get_accelerometer();

	virtual Point2 get_mouse_pos() const;
	virtual Point2 get_mouse_speed() const;
	virtual int get_mouse_button_mask() const;

	void parse_input_event(const InputEvent& p_event);
	void set_accelerometer(const Vector3& p_accel);
	void set_joy_axis(int p_device,int p_axis,float p_value);

	void set_main_loop(MainLoop *main_loop);
	void set_mouse_pos(const Point2& p_posf);

	void action_press(const StringName& p_action);
	void action_release(const StringName& p_action);

	void iteration(float p_step);

	InputDefault();

};

#endif // INPUT_H