#include <iostream>
using namespace std;
 
int main()
{
double x1;
double y1;
int heading;
double distance;
double xHeadingRatio;
double yHeadingRatio;
 
double x2 = 0;
double y2 = 0;
 
cout << "Enter object's x co-ordinate: ";
cin >> x1;
cout << "\n";
cout << "Enter object's y co-ordinate: ";
cin >> y1;
cout << "\n";
cout << "Enter object's heading (degrees): ";
cin >> heading;
cout << "\n";
cout << "Enter object's distance travelled: ";
cin >> distance;
 
if (heading == 0)
{
y2 = y1 + distance;
}
 
if (heading == 90)
{
x2 = x1 + distance;            
}
 
if (heading == 180)
{
y2 = y1 - distance;     
}   
 
if (heading == 270)
{
x2 = x1 - distance;  
}
 
if (heading > 0 && heading < 90)
{
xHeadingRatio = heading / 90;
yHeadingRatio = 1 - xHeadingRatio;
x2 = distance * xHeadingRatio;
y2 = distance * yHeadingRatio;
}
 
if (heading > 90 && heading < 180)
{
	// math not finished
}
 
if (heading > 180 && heading < 270)
{
	// math not finished
}
 
if (heading > 270 && heading < 360)
{
	// math not finished
}
 
cout << "\n";
cout << "The new x and y co-ordinates are (";
cout << x2;
cout << ",";
cout << y2;
cout << ")";
cout << "\n";
system("PAUSE");
}

dx = distance * cos(heading / 180. * M_PI);
dy = distance * sin(heading / 180. * M_PI);

#include <iostream>
#include <math.h>
using namespace std;
 
int main()
{
double x1;
double y1;
int Heading;
double Distance;
 
double xDisplacement;
double yDisplacement;
 
double x2;
double y2;
 
cout << "Enter object's x co-ordinate: ";
cin >> x1;
cout << "\n";
cout << "Enter object's y co-ordinate: ";
cin >> y1;
cout << "\n";
cout << "Enter object's heading (degrees): ";
cin >> Heading;
cout << "\n";
cout << "Enter object's distance travelled: ";
cin >> Distance;
 
xDisplacement = cos(Heading) * Distance;
yDisplacement = sin(Heading) * Distance;
 
x2 = x1 + xDisplacement;
y2 = y1 + yDisplacement;
 
cout << "\n";
cout << "The new x and y co-ordinates are (";
cout << x2;
cout << ",";
cout << y2;
cout << ")";
cout << "\n";
system("PAUSE");
}