//Homework #8
//Erica D. Cochran
//ericac@andrew.cmu.edu
//Section B
//Copyright © Erica D. Cochran
//October 07, 2009
//Carnegie Mellon University
//Exploring Programming with Graphics
//Pittsburgh, PA, USA
//All Rights Reserved



// Declare gobal variables here
  PFont f1;
  int x, avg, yHigh, yLow;
  
  
  int [ ] yValues = { 25, 40, 60, 70, 40, 40, 30, 80, 50, 120, 40, 80, 80, 33, 50, 70, 130 };
  
  //int [ ] yValues = { 140, 60, 120, 70, 70, 50, 90, 80, 50, 35 };
  
  //int [ ] yValues = { 70, 80, 30, 100, 40, 60 };
  

void setup( )
{
   size( 500, 150 );
   background( 0, 0, 200);
 
   f1 = loadFont ("f1.vlw"); 
   textFont (f1);
   
   fill (255, 255, 0);
   
   x = width / (yValues.length);
   yHigh = flagHigh ();
   yLow = flagLow ();
   avg = average ();
   
   points ();
   lines ();
   averageLine ();
   flag ();
}


void points ()
{
  for (int i=0; i < yValues.length; i++)
  { 
    stroke (255, 255, 0);
    strokeWeight (7);
    point ((x*i+10), yValues[i]);
  }
}

void lines ()
{
  for (int i=0; i < yValues.length - 1; i++)
  { 
    stroke (255, 3, 167);
    strokeWeight (2);
    line ((x*i+10), yValues[i], ((x*(i+1)) + 10), yValues[i+1]);
  }
}
  

int flagLow ()  
{  
    int lowestValue = 0;
    for (int i=0; i < yValues.length; i++) 
    {
      if (yValues[i] < yValues [lowestValue])
      {
        lowestValue = i;
      }
    }
    return lowestValue;
 }
  
 int flagHigh ()  
{  
    int highestValue = 0;
    for (int i=0; i < yValues.length; i++) 
    {
      if (yValues[i] > yValues [highestValue])
      {
        highestValue = i;
      }
    }
    return highestValue;
 }
  
  int sum ()
{
  int sum = 0;
  for (int i = 0; i <yValues.length; i++)
  {
   sum = sum + yValues [i]; 
  }
  return sum;
}

 int average ()
 {
   return sum ()/yValues.length;
 }
  
void averageLine ()
{
  stroke (255);
  line (0, avg, width, avg); 
  fill (241, 140, 12);
  textFont (f1, 15);
  text ("Average", x-20, avg); 
}
  
void flag ()
{
      stroke (150, 140, 20);
      strokeWeight (1);
      
      fill (55,250,50);
      line (x*yHigh+10, yValues[yHigh], x*yHigh+10, yValues[yHigh] -20); 
      triangle (x*yHigh+10, yValues[yHigh] - 10, x*yHigh+20, yValues[yHigh] -15, x*yHigh+10, yValues[yHigh] -20);
 
      fill (255,0,0);
      line (x*yLow+10, yValues[yLow], x*yLow+10, yValues[yLow] -20); 
      triangle (x*yLow+10, yValues[yLow] -10, x*yLow+20, yValues[yLow] -15, x*yLow+10, yValues[yLow] -20);  
}