/**
a simple letter game, written by <a href="http://www.local-guru.net/blog">guru</a>
*/

char[] letters = new char[] { 'a','b','c','d','e','f', 
'g','h','i', 'j', 'k', 'l','m','n','o','p','q',
'r', 's', 't','u','v','w','x','y','z' };

char letter;
int x, y;

int count = 0;
int starttime;
boolean running = true;

void setup() {
  size(300,300);
  newLetter();
  textFont( loadFont( "Verdana-48.vlw"));
  textSize( 48 );
  fill(0);
  starttime = millis();
}

void draw() {
  if ( millis() - starttime < 20000 ) {
    background(255);
    text( "" + letter, x, y );
  } else {
    running=false;
    background(255);
    text( "COUNT: " + count, 10, 150 );
  }
}

void newLetter() {
  count++;
  letter = letters[ (int)random(26)];
  x = int(random( 50, 250 ));
  y = int(random( 50, 250 ));
}

void keyPressed() {
  if (running && key == letter) {
    newLetter();
  }
}