//chongho lee
//section a
//chonghol@andrew.cmu.edu

PImage pic;
PFont f1;

void setup()
{
  size( 600, 600 );
  background( 255 );

  pic = loadImage( "image1.gif" );
  f1 = loadFont( "font1.vlw" );  
}

void displayErrorMessage()
{
  println( " That was not a valid choice " );
  textFont( f1, 30 );
  fill(#FF0000);
  text( "That was not a valid choice", width*0.04, height*0.35);
}

void draw()
{
  displayChoices();
  //drawInitials(width/2, height/2, width*0.01, height*0.01);
  
  if ( key == 'w' )
  {
    showWhileLoop();
  }  
  
  else if ( key == 'd' )
  {
    showDoLoop(); 
  }
    
  else if ( key == 'f' )
  {
    showForLoop(); 
  }
  
  else if ( key == 'c' )
  {
    clearScreen();
  }
 
  else if ( frameCount > 1 )
  {
    displayErrorMessage();
  }

  noLoop();
}

void keyPressed()
{
  loop();
}

void clearScreen()
{
  background( 255 );
  displayChoices();  
}

void showForLoop()
{
  for(int a = 0; a < width; a += 40)
  {
    drawInitials(0 + a, 0 + a, width*0.1, height*0.1);
    drawInitials(0 + a, (height-a)-(height*0.1), width*0.1, height*0.1);
  }
}

void showDoLoop()
{
  int x = 0;
  int y = 0;  
  
  textFont( f1, 30 );
  fill( 0 );
  
  do
  {
    text( " chongho ", x, y, width*0.2, height*0.2);
    text( " chongho ", x, (height-y)-(height*0.1), width*0.2, height*0.2);
    x = x+(int)(width*0.1);
    y = y+(int)(height*0.1);  
  }
  while (x<(int)width);
}

void showWhileLoop()
{
  int x = 0;
  int y = 0;
  while (x<=(int)width)
  {
    image( pic, x, y, width*0.1, height*0.1);
    image( pic, x, (height-y)-(height*0.1), width*0.1, height*0.1);
    x = x+(int)(width*0.1);
    y = y+(int)(height*0.1);  
  }
}

void displayChoices()
{
  println(" Enter one of the following : ");
  println(" [w] for a while loop demonstration ");
  println(" [d] for a do loop demonstration ");
  println(" [f] for a for loop demonstration ");
  println(" [c] to clear the screen ");
    
  textFont( f1, 30 );
  fill( 0 );
  text( " Enter one of the following : ", width*0.04, height*0.06);
  text( " [w] for a while loop demonstration ", width*0.04, height*0.12);
  text( " [d] for a do loop demonstration ", width*0.04, height*0.18);
  text( " [f] for a for loop demonstration ", width*0.04, height*0.24);
  text( " [c] to clear the screen ", width*0.04, height*0.30);  
}

void drawInitials(float x, float y, float boxWidth, float boxHeight)
{
  noFill();
  strokeWeight(5);
  stroke(#EFF25F);
    
  beginShape();
  curveVertex(x + .45*boxWidth, y + .45*boxHeight);
  curveVertex(x  + .30*boxWidth, y + .30*boxHeight);
  curveVertex(x + .15*boxWidth, y + .15*boxHeight);
  curveVertex(x + .08*boxWidth, y + .25*boxHeight);
  curveVertex(x + .05*boxWidth, y + .50*boxHeight);
  curveVertex(x + .08*boxWidth, y + .75*boxHeight);
  curveVertex(x + .25*boxWidth, y + .85*boxHeight);
  curveVertex(x + .40*boxWidth, y + .70*boxHeight);
  curveVertex(x + .45*boxWidth, y + .60*boxHeight);
  endShape();

  stroke(#F25F8C);
  beginShape();
  curveVertex(x + .40*boxWidth, y + .05*boxHeight);
  curveVertex(x + .45*boxWidth, y + .10*boxHeight);
  curveVertex(x + .50*boxWidth, y + .35*boxHeight);
  curveVertex(x + .55*boxWidth, y + .50*boxHeight);
  curveVertex(x + .48*boxWidth, y + .65*boxHeight);
  curveVertex(x + .42*boxWidth, y + .78*boxHeight);
  curveVertex(x + .40*boxWidth, y + .82*boxHeight);
  curveVertex(x + .35*boxWidth, y + .88*boxHeight);
  endShape();

  beginShape();
  curveVertex(x + .25*boxWidth, y + .50*boxHeight);
  curveVertex(x + .55*boxWidth, y + .50*boxHeight);
  curveVertex(x + .65*boxWidth, y + .45*boxHeight);
  curveVertex(x + .70*boxWidth, y + .50*boxHeight);
  endShape();

  beginShape();
  curveVertex(x + .80*boxWidth, y + .05*boxHeight);
  curveVertex(x + .75*boxWidth, y + .10*boxHeight);
  curveVertex(x + .70*boxWidth, y + .35*boxHeight);
  curveVertex(x + .65*boxWidth, y + .50*boxHeight);
  curveVertex(x + .68*boxWidth, y + .65*boxHeight);
  curveVertex(x + .72*boxWidth, y + .78*boxHeight);
  curveVertex(x + .80*boxWidth, y + .82*boxHeight);
  curveVertex(x + .85*boxWidth, y + .88*boxHeight);
  endShape();

  stroke(#3BFFAC);
  beginShape();
  curveVertex(x + .85*boxWidth, y + .05*boxHeight);
  curveVertex(x + .90*boxWidth, y + .10*boxHeight);
  curveVertex(x + .93*boxWidth, y + .35*boxHeight);
  curveVertex(x + .95*boxWidth, y + .50*boxHeight);
  curveVertex(x + .92*boxWidth, y + .65*boxHeight);
  curveVertex(x + .88*boxWidth, y + .78*boxHeight);
  curveVertex(x + .84*boxWidth, y + .82*boxHeight);
  curveVertex(x + .80*boxWidth, y + .88*boxHeight);
  endShape();

  beginShape();
  curveVertex(x + .80*boxWidth, y + .77*boxHeight);
  curveVertex(x + .84*boxWidth, y + .82*boxHeight);
  curveVertex(x + .88*boxWidth, y + .84*boxHeight);
  curveVertex(x + .93*boxWidth, y + .85*boxHeight);
  curveVertex(x + .97*boxWidth, y + .85*boxHeight);
  curveVertex(x + 1.00*boxWidth, y + .84*boxHeight);
  curveVertex(x + 1.10*boxWidth, y + .80*boxHeight);
  curveVertex(x + 1.20*boxWidth, y + .72*boxHeight);
  endShape();
}