/* Challenge : Make a program that will create polygon in any Language. If you enter X ; your program will create a polygon having x equal sides. A polygon is a plan shape with straight sides. for more info see here https://www.mathsisfun.com/geometry/polygons.html I. E. if you Enter 4 it will create a square. if you Enter 5 it will create a pentagon. which every side has equal length. */ #define _USE_MATH_DEFINES #define WIDTH 15 #define HEIGHT 15 #include #include #include using namespace std; char display[WIDTH * HEIGHT]; void clearDisplay() { for(int i = 0; i < WIDTH*HEIGHT; ++i) { display[i] = char(32);//'#'; } } class Polygon { private: int mSides; int mStartX, mStartY; double mSize; public: Polygon(int sides); void Draw(); void Display(); }; Polygon::Polygon(int sides) : mStartX(7), mStartY(7), mSides(sides), mSize(4) { } void Polygon::Draw() { clearDisplay(); double x, y; double angle_inc; double rotation = 0.0; angle_inc = 2* M_PI / mSides; // cout << "Co-ordinates: " << endl; for(double angle = 0.0; angle < 2*M_PI; angle+= angle_inc) { x = mStartX + mSize*cos(angle + rotation); y = mStartY + mSize*sin(angle + rotation); display[int(round(y)) * WIDTH + int(round(x))] = 'X'; // cout << round(x) << ", " << round(y) << endl; } Display(); } void Polygon::Display() { int index = 0; for(int i = 0; i < HEIGHT; ++i) { // cout << setw(2) << i; for(int j = 0; j < WIDTH; ++j) { cout << display[index]; ++index; } cout << endl; } } int main() { int sides; cin >> sides; Polygon shape(sides); shape.Draw(); return 0; }