/* [CONSTRUCTOR] Construction d'un xMarioMario
=========================================================*/
xMarioMario::xMarioMario(xManager *m, int x, int y)
: xSpriteAnimation(
	m,
	"src/mario.png",
	(SDL_Rect){
		(int) (BLOC_SIZE*x+BLOC_SIZE*.1),
		BLOC_SIZE*y,
		(int) (BLOC_SIZE*.8),
		BLOC_SIZE
	}
){

	_left    = false;
	_right   = false;
	_up      = false;
	_down    = false;
	_jumps   = 0;

	// Position frame par defaut
	_pos = "NR"; // bottom-center

	_gravity = 19;

	// Constantes de mouvement sur X
	_velocity[0] = 0.0;
	_mult[0]     = 10;
	_dec[0]      = .7;
	_acc[0]      = .6;
	_min_vel[0]  = 0.1;
	_max_vel[0]  = 10;

	// Constantes de mouvement sur Y
	_velocity[1] = 0.0;
	_mult[1]     = 50;
	_dec[1]      = .3;
	_acc[1]      = 2;
	_min_vel[1]  = 0.2;
	_max_vel[1]  = 100;

	// On definit les frames de l'animation par defaut
	this->addFrame( (SDL_Rect){238, 0, 19, 29} );
	this->addFrame( (SDL_Rect){329, 0, 19, 29} );

}



/* [MOVEFROMVELOCITY] Applique la velocite au deplacement
=========================================================*/
void xMarioMario::moveFromVelocity(){

	/* (1) Si aucune collision, on deplace */
	vector<int> after = this->move(_velocity[0], _velocity[1]);


	// if( _velocity[0] != after[2] && after[0] != 0 )
	// 	cerr << "collision from " << ((after[0]==1)?"right":"left") << " at " << (_dst.x+after[2]) << endl;

	// if( _velocity[1] != after[3] && after[1] != 0 )
	// 	cerr << "collision from " << ((after[1]==1)?"bottom":"top") << " at " << (_dst.y+after[3]) <<endl;

	/* (2) On modifie la velocite en fonction des collisions */
	_velocity[0] = (double) after[2];
	_velocity[1] = (double) after[3];


	/* (3) Modification du sprite en fonction du mouvement */
	this->turn();


	/* (4) Gestion de touche encore enfoncee */
	if( _left )       this->velocity(-1, 0);
	else if( _right ) this->velocity(1, 0);
	// diminution de l'acceleration quand on lache <- ET ->
	else              _velocity[0] *= ( 1 - _dec[0] );

	// Si touche haut
	if( _up ){
		// Si au sol et premier saut ou autre saut (pour la hauteur)
		if( this->onFloor() && _jumps == 0 || _jumps == 1 ){
			this->velocity(0, -1);
			_jumps++;
		}
	}else
		_jumps = 0;
	

	/* (5) On diminue la gravite */
	_velocity[1] *= ( 1 - _dec[1] );


	/* (6) Gestion de la gravite */
	if( !this->onFloor() )
		this->move(0, _gravity);


	/* (7) Si velocite sous borne min, on met a 0 */
	if( abs(_velocity[0]) < _min_vel[0] ) // sur x
		_velocity[0] = 0;

	if( abs(_velocity[1]) < _min_vel[1] ) // sur y
		_velocity[1] = 0;


	/* (8) Gestion du temps */
	// if( abs(_velocity[0]) > 0 )
	// 	cerr << "x -> " << _velocity[0] << endl;

	// if( abs(_velocity[1]) > 0 )
	// 	cerr << "y -> " << _velocity[1] << endl;

		// cout << endl;
	// usleep(20000);
}







/* [VELOCITY] Retourne un pointeur sur la velocite
=========================================================*/
double xMarioMario::velocity(bool way){
	// (way) ? HORIZONTAL : VERTICAL
	return (way) ? _velocity[0] : _velocity[1];
}







/* [VELOCITY] Modifie la velocite
=========================================================*/
void xMarioMario::velocity(double x, double y){
	double last[] = { _velocity[0], _velocity[1] };

	// Vrai si on change pas de sens sur X
	bool sameway_x = (last[0]*x) > 0;
	// Vrai si on change pas de sens sur y
	bool sameway_y = (last[1]*y) > 0;

	/* (1) Gestion velocite axe X */
	if( sameway_x ) // Si meme sens, on accelere
		_velocity[0] *= (1+_acc[0]);
	else
		_velocity[0] += x * _mult[0];

	/* (2) Gestion velocite axe Y */
	if( sameway_y ) // Si meme sens, on accelere
		_velocity[1] *= (1+_acc[1]);
	else
		_velocity[1] += y * _mult[1];


	/* (3) On borne la velocite aux max */
	if( abs(_velocity[0]) > _max_vel[0] ) // Si max x
		_velocity[0] = _max_vel[0] * (_velocity[0] / abs(_velocity[0]) );

	if( abs(_velocity[1]) > _max_vel[1] ) // Si max y
		_velocity[1] = _max_vel[1] * (_velocity[1] / abs(_velocity[1]) );

}









bool xMarioMario::onFloor(){
	return _manager->hit((xSprite*)this, 0, 1);
}






/* [TURN] Gestion des sprites en fonction du mouvement
=========================================================*/
void xMarioMario::turn(){
	/* (0) Variables utiles */
	bool left = _velocity[0] < 0; // si vers la gauche
	bool up   = _velocity[1] < 0; // si vers le haut

	bool centerx = _velocity[0] == 0; // centre sur x
	bool centery = _velocity[1] == 0; // centre sur y



	/* (1) Vers le haut */
	if( up && !this->onFloor() ){

		/* (1.2) HAUT - CENTRE */
		if( centerx ){    // tc
			if( _pos != "TC" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){300, 0, 19, 29} );
				this->addFrame( (SDL_Rect){300, 0, 19, 29} );
				this->push(_index);

				_pos = "TC";
				return;
			}

		/* (1.1) HAUT - GAUCHE */
		}else if( left ){ // tl
			if( _pos != "TL" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){31, 0, 19, 29} );
				this->addFrame( (SDL_Rect){31, 0, 19, 29} );
				this->push(_index);

				_pos = "TL";
				return;
			}
			


		/* (1.2) HAUT - DROITE */
		}else{            // tr
			if( _pos != "TR" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){300, 0, 19, 29} );
				this->addFrame( (SDL_Rect){300, 0, 19, 29} );
				this->push(_index);

				_pos = "TR";
				return;
			}

		}

	/* (2) Vers le bas */
	}else if( !centery ){




		/* (2.2) BAS - CENTRE */
		if( centerx && !this->onFloor() ){    // bc
			if( _pos != "BC" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){122, 160, 19, 29} );
				this->addFrame( (SDL_Rect){122, 160, 19, 29} );
				this->push(_index);

				_pos = "BC";
				return;
			}
			
			
		/* (2.1) BAS - GAUCHE */
		}else if( left ){ // bl
			if( _pos != "BL" ){
				return;
			}
			


		/* (2.2) BAS - DROITE */
		}else{            // br
			if( _pos != "BR" ){
				return;
			}

		}


	/* (3) Droit */
	}else{

		/* (3.2) NORMAL - CENTRE */
		if( centerx ){    // nc
			if( _pos != "NR" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){238, 0, 19, 29} );
				this->addFrame( (SDL_Rect){329, 0, 19, 29} );
				this->push(_index);

				_pos = "NR";
				return;
			}
			
			
		/* (3.1) NORMAL - GAUCHE */
		}else if( left ){ // nl
			if( _pos != "NL" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){2, 0, 19, 29} );
				this->addFrame( (SDL_Rect){93, 0, 19, 29} );
				this->push(_index);

				_pos = "NL";
				return;
			}
			


		/* (3.2) NORMAL - DROITE */
		}else{            // nr
			if( _pos != "NR" ){
				this->pull();
				this->clear();
				this->addFrame( (SDL_Rect){238, 0, 19, 29} );
				this->addFrame( (SDL_Rect){329, 0, 19, 29} );
				this->push(_index);

				_pos = "NR";
				return;
			}

		}


	}
}