I have Code::Blocks 10.5 and SFML 1.6. I am making a simple program that gets 3 points from the user and prints out a triangle and the area as well as a few other things to the screen. Every time I run it, all I get is a blank terminal window.
Here is my code:
#include <iostream>
#include <math.h>
#include <sstream>
#include <SFML/Graphics.hpp>
using namespace std;
class triangle
{
void sort();
public:
triangle(int x1, int y1, int x2, int y2, int x3, int y3)
{
x[0] = x1;
x[1] = x2;
x[2] = x3;
y[0] = y1;
y[1] = y2;
y[2] = y3;
/////////
//sides//
/////////
for (int i = 0; i < 3; i++)
{
if (i < 2)
{
side[i] = sqrt(((x[i + 1] - x[i]) * (x[i + 1] - x[i])) + ((y[i + 1] - y[i]) * (y[i + 1] - y[i])));
}else
{
side[i] = sqrt(((x[0] - x[i]) * (x[0] - x[i])) + ((y[0] - y[i]) * (y[0] - y[i])));
}
}
////////
//area//
////////
float s;
for (int i = 0; i < 3; i++)
{
if (side[i] < 0)
{
side[i] = -side[i];
}
}
s = (side[0] + side[1] + side[2]) / 2;
area = sqrt(s * (s - side[0]) * (s - side[1]) * (s - side[2]));
/////////////////////
//angles (oh, god.)//
/////////////////////
sort();
float tempo = 0;
float temop2 = 0;
tempo = ((side[0] * side[0]) + (side[1] * side[1]) - (side[2] * side[2])) / (2 * side[0] * side[1]);
tempo = acos(tempo);
angle[0] = tempo * (180 / M_PI);
temop2 = sin(tempo);
tempo = (side[0] * temop2) / side[2];
temop2 = asin(tempo);
angle[1] = temop2 * (180 / M_PI);
angle[2] = 180 - (angle[0] + angle[1]);
for (int i = 0; i < 3; i++)
{
if (angle[i] == 90)
{
right = true;
}
}//0 sin 2 base = 3
//////////////////////////////////////////////
//height of ONE side. Not gonna do the rest.//
//////////////////////////////////////////////
height = side[0] * sin(angle[2] * (M_PI / 180));
}
float angle[3];
float side[3];
float x[3];
float y[3];
float area;
float height;
bool right;
};
void triangle::sort()
{
int temp;
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 2; j++)
{
if (side[j] > side[j + 1])
{
temp = side[j];
side[j] = side[j + 1];
side[j + 1] = temp;
temp = 0;
}
}
}
//3 2 1 -> 1 2 3
}
string conv(float var)
{
float i = var;
string s;
stringstream out;
out << i;
s = out.str();
return s;
}
int main()
{
int points[3][2];
sf::Font MyFont;
if (!MyFont.LoadFromFile("E:/fdsa/pirulen.ttf"))
{
// Error...
}
for (int i = 0; i < 3; i++)
{
cout << "point set " << i + 1 << endl;
for (int j = 0; j < 2; j++)
{
if (j == 0)
{
cout << "X:";
}
if (j == 1)
{
cout << "Y:";
}
cin >> points[i][j];
}
}
triangle tri(points[0][0], points[0][1], points[1][0], points[1][1], points[2][0], points[2][1]);
sf::String Right("Right: ", MyFont, 14);
sf::String A(conv(tri.angle[0]) + "°", MyFont, 14);
sf::String B(conv(tri.angle[1]) + "°", MyFont, 14);
sf::String C(conv(tri.angle[2]) + "°", MyFont, 14);
Right.Move(0.f, 580.f);
if (tri.right == true)
{
Right.SetText("Right: true. Area: " + conv(tri.area));
}
if (tri.right != true)
{
Right.SetText("Right: false. Area: " + conv(tri.area));
}
A.Move(tri.x[1], tri.y[1] + 10);
B.Move(tri.x[2], tri.y[2] + 10);
C.Move(tri.x[0], tri.y[0] + 10);
sf::RenderWindow App(sf::VideoMode(800, 600, 32), "SFML Graphics");
while (App.IsOpened())
{
sf:: Event Event;
while (App.GetEvent(Event))
{
if (Event.Type == sf::Event::Closed)
{
App.Close();
}
}
App.Clear();
App.Draw(sf::Shape::Line(tri.x[0]/* x1 */, tri.y[0]/* y1 */, tri.x[1]/* x2 */, tri.y[1]/* y2 */, 3, sf::Color::White, 0, sf::Color::Black));
App.Draw(sf::Shape::Line(tri.x[1]/* x2 */, tri.y[1]/* y2 */, tri.x[2]/* x3 */, tri.y[2]/* y3 */, 3, sf::Color::White, 0, sf::Color::Black));
App.Draw(sf::Shape::Line(tri.x[0]/* x1 */, tri.y[0]/* y1 */, tri.x[2]/* x3 */, tri.y[2]/* y3 */, 3, sf::Color::White, 0, sf::Color::Black));
App.Draw(Right);
App.Draw(A);
App.Draw(B);
App.Draw(C);
App.Display();
}
return EXIT_SUCCESS;
}
I have tried this on another computer with the same versions of Code::Blocks and SFML, and it worked. Why doesn't it work on my computer? No error msgs at all.
