// File name: figure.cpp
// Author: Xiannong Meng
// Date: January 16, 1997
// Course: CS2330
// Assignment: classroom demonstration
// Problem statement: This program draws a simple figure 
// using line segments.

#include <iostream.h>

// function declarations
void DrawCircle();
void DrawTriangle();
void DrawIntersect();   
void DrawBase();

void main(void)
{
    DrawCircle();
    DrawTriangle();
    DrawIntersect();   
}

// Name: DrawCircle()
// Intent: Draw a psudo-circle using '*'
// Pre-condition: None.
// Post-condition: A circle is drawn on the standard output
void DrawCircle()
{
   cout << "      *" << endl;
   cout << "    *   *" << endl;
   cout << "     * *" << endl;
}

// Name: DrawTriangle()
// Intent: Draw a triangle using '*'
// Pre-condition: None.
// Post-condition: A triangle is drawn on the standard output
void DrawTriangle()
{
   // Draw two intersecting lines first.
   DrawIntersect();
   // Then draw the baseline.
   DrawBase();
}

// Name: DrawIntersect()
// Intent: Draw two intsercting lines, upper part of a triangle
// Pre-condtion: None
// Post-condition: Two intsercting lines are drawn.
void DrawIntersect()
{
   cout << "      /\\" << endl;
   cout << "     /  \\" << endl;
   cout << "    /    \\" << endl;
}

// Name: DrawBase()
// Intent: Draw a baseline as part of a triangle
// Pre-condition: Two intersecting lines should have been drawn before this.
// Post-condition: by drawing this base line, a triangle should be formed.
void DrawBase()
{
   cout << "    -------" << endl;
}