//**************************************************************
//                                                                    
//  Class:		Boat class (Labtest3 Tuesday, 4:00)                 
//                                                                     
//  Authors:	Art Miller		amiller@mta.ca
//				Bob Rosebrugh	rrosebrugh@mta.ca
//                                                                    
//  Description:A class for Boat objects
//						
//	METHODS:
//		Boat			a constructor  
//		loadCargo		load cargo
//		unloadCargo		unload cargo
//	  	boatFull		is the boat full ?
//		displayCargo	display the boat's cargo (tons)	
//
//  Date:		November 16, 1999 
//
//  Course Info:CS 1711, Lab test3 Tuesday, 4:00 - 5:30
//
//  Filename:	boat.h 
//                                                                    
//***************************************************************

const int MAXCAPACITY = 400;  // 400 tons maximum

class Boat
{
private:
	//  cargo on the Boat & capacity of the Boat.
	int cargo;
	int capacity;
public:
	Boat();					// constructor
	bool boatFull();        // is the Boat full ?
	void loadCargo (int cargoAmount);		// load additional cargo
	void unloadCargo (int cargoAmount);		// unload some cargo
	void displayCargo ();	// displays the tons of cargo on the Boat.
};
// *******************************
//      Boat class implementation
// *******************************

// initialize Boat
Boat::Boat()
{	cargo = 0;
	capacity = MAXCAPACITY;
}



// return whether the Boat is full
bool Boat::boatFull()
{	
	return (cargo >= capacity);
}


void Boat::loadCargo (int cargoAmount)	// load cargo
{	
	cargo = cargo + cargoAmount;
	if (cargo >= capacity)
		cargo = capacity;
}

void Boat::unloadCargo(int cargoAmount) // unload cargo
{	
	cargo = cargo - cargoAmount;
	if (cargo <= 0)
		cargo = 0;
}

void Boat::displayCargo()
{
	if (cargo >= capacity)
		cout << "The boat is full." << endl;
	else if (cargo <= 0)
		cout << "The boat is empty." << endl;
	else
		cout << "Cargo = " << cargo  << endl;
}