/* 15-100 D Homework #6
 Dae Hong Kim
 daek@andrew.cmu.edu 
 */


PFont myFont;
PImage myPic01, myPic02;
PImage errorWin;

void setup()
{
  size(600, 600);
  smooth();
  background(255);
  myFont = loadFont("CenturyGothic-Bold-48.vlw");
  myPic01 = loadImage("pic01.jpg");
  myPic02 = loadImage("pic02.jpg");
  errorWin = loadImage("errorWindow.jpg");
} // end of setup()

void draw()
{
  noStroke();
  showChoicesConsWin(); // display the choices in the console window
  showChoicesGrphWin(); // display the choices in the graphic window

  if(key == 'c') // clear the screen
  {
    clearScreen();
  } 
  else if(key == 'w') // while loop demo
  {
    whileDemo();
  } 
  else if(key == 'd') // do loop demo
  {
    doDemo();
  } 
  else if(key == 'f') // for loop demo
  {
    forDemo();
  } 
  else if(frameCount > 1)
  {
    showErrorMessage();    
  }
  noLoop();

}// end of draw()


void showChoicesConsWin()
{
  println("========================================");
  println("  press [c] to clear the screen");
  println("  press [w] to see the while loop demo");
  println("  press [d] to see the do loop demo");
  println("  press [f] to see the for loop demo");
  println("========================================");
}// end of showChoicesConsWin()


void showChoicesGrphWin()
{
  textFont(myFont, 12);
  fill(0);
  text("Please choose one of the following:", 10, 25);
  text(" *press [c] to clear the screen", 10, 45);
  text(" *press [w] to see the while loop demo", 10, 65);
  text(" *press [d] to see the do loop demo", 10, 85);
  text(" *press [f] to see the for loop demo", 10, 105);
}//end of showChoices()


void keyPressed()
{
  loop();
}// end of keyPressed()


void whileDemo() // display movie posters
{
  int xSpacing = myPic01.width/4;
  float xPos = 0;
  while(xPos < width)
  {
    image(myPic02, xPos, (height/2)-((myPic02.height/4)*2), myPic02.width/4, myPic02.height/4);
    image(myPic01, xPos, (height/2)-(myPic01.height/4), myPic01.width/4, myPic01.height/4);
    image(myPic02, xPos, (height/2), myPic02.width/4, myPic02.height/4);
    image(myPic01, xPos, (height/2)+(myPic01.height/4), myPic01.width/4, myPic01.height/4);
    xPos += xSpacing;
  }
}// end of whileDemo()


void doDemo() // disply a clock by using sin() and cos()
{
  int clockNum = 1;
  int clockSz = 180; // size of the clock
  float clockDegree = -60.0;

  do
  {
    float theta = radians(clockDegree);
    float posX = clockSz * cos(theta);
    float posY = clockSz * sin(theta);
    textFont(myFont, 40);
    fill(random(255), random(255), random(255));
    text(clockNum, (width/2) + posX, (height/2) + posY);
    clockNum++;
    clockDegree += 30.0;

    bonusText(20, width/2, height/2);
  } 
  while(clockNum < 13);
} // end of doDemo()


void forDemo()// display the initials
{ 
  float angle = 0.0;
  float xSpacing = 5.7;
  float inc = TWO_PI/25.0;
  float initialWidth = width/40;
  float initialHeight = height/40;

  for(int i=0; i < 100; i += 4) 
  {
    drawInitials(i * xSpacing, height*0.8 + (sin(angle)*100.0), initialWidth, initialHeight);
    angle = angle + inc;
  }

  bonusText(18, (100 * xSpacing)-40, (height*0.8 + (sin(angle)*100.0))+10);  
}// end of forDemo()


void bonusText(int s, float x, float y) // bonusText(size of font, x position, y postion)
{
  textFont(myFont, s);
  fill(random(255), random(255), random(255));
  text("Bonus~!", x, y);
}// end of bonusText()


void clearScreen()
{
  background(255);
  showChoicesGrphWin();
}// end of clearScreen()


void showErrorMessage()
{
  image(errorWin, width/2 - (errorWin.width/2), height/2 - (errorWin.height/2));
  println("************************************************");
  println("*  You pressed a wrong key! Please, try again  *");
  println("************************************************");
}// end of showErrorMessage()


// method drawInitials( x coordinate,  y coordinate,  width of each initial,  height of each initial )
void drawInitials(float x, float y, float initialWidth, float initialHeight)
{
  // Draw Initial D
  noFill();
  stroke(10, 188, 100);
  strokeWeight(5);
  beginShape();
  curveVertex(x, y);
  curveVertex(x + initialWidth * 2/10, y);
  curveVertex(x + initialWidth * 4/10, y + initialHeight * 2/10);
  curveVertex(x, y + initialHeight * 6/10);
  curveVertex(x + initialWidth * 3/10, y + initialHeight);
  curveVertex(x + initialWidth * 3/10, y + initialHeight);
  endShape();

  beginShape();
  curveVertex(x, y);
  curveVertex(x                    , y + initialHeight * 2/10 );
  curveVertex(x + initialWidth * 6/10, y + initialHeight * 1/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight * 3/10);
  curveVertex(x + initialWidth * 9/10, y + initialHeight * 5/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight * 7/10);
  curveVertex(x + initialWidth * 4/10 , y + initialHeight * 8/10);
  curveVertex(x                     , y + initialHeight * 8/10 );
  curveVertex(x                     , y + initialHeight * 8/10 );  
  endShape();

  // Draw initial H
  stroke(70, 18, 170);
  x += initialWidth;
  beginShape();
  curveVertex(x, y);
  curveVertex(x, y);
  curveVertex(x + initialWidth * 3/10, y + initialHeight * 2/10);
  curveVertex(x + initialWidth * 2/10 , y + initialHeight * 5/10 );
  curveVertex(x + initialWidth * 3/10, y + initialHeight * 8/10);
  curveVertex(x + initialWidth * 1/10, y + initialHeight);
  curveVertex(x + initialWidth * 1/10, y + initialHeight);
  endShape();

  beginShape();
  curveVertex(x + initialWidth * 9/10, y);
  curveVertex(x + initialWidth * 9/10, y);
  curveVertex(x + initialWidth * 7/10, y + initialHeight * 4/10);
  curveVertex(x + initialWidth * 7/10, y + initialHeight * 7/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight);
  curveVertex(x + initialWidth * 8/10, y + initialHeight);
  endShape();

  beginShape();
  curveVertex(x, y + initialHeight * 6/10);
  curveVertex(x, y + initialHeight * 6/10);
  curveVertex(x + initialWidth * 2/10, y + initialHeight * 5/10);
  curveVertex(x + initialWidth * 4/10, y + initialHeight * 6/10);
  curveVertex(x + initialWidth * 6/10, y + initialHeight * 5/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight * 6/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight * 6/10);
  endShape();

  //Draw initial K
  stroke(150, 90, 200);
  x += initialWidth;
  beginShape();  
  curveVertex(x, y);
  curveVertex(x + initialWidth * 2/10, y + initialHeight * 2/10);
  curveVertex(x + initialWidth * 3/10, y + initialHeight * 3/10);
  curveVertex(x + initialWidth * 2/10, y + initialHeight * 5/10);
  curveVertex(x, y + initialHeight * 4/10);
  curveVertex(x + initialWidth * 1/10, y + initialHeight * 1/10);
  curveVertex(x + initialWidth * 3/10, y);
  curveVertex(x + initialWidth * 5/10, y + initialHeight * 2/10);
  curveVertex(x + initialWidth * 5/10, y + initialHeight * 6/10);
  curveVertex(x + initialWidth * 3/10, y + initialHeight * 7/10);
  curveVertex(x, y + initialHeight);
  curveVertex(x, y + initialHeight * 8/10);
  curveVertex(x, y + initialHeight * 8/10);
  endShape();

  beginShape();
  curveVertex(x + initialWidth, y);
  curveVertex(x + initialWidth, y);
  curveVertex(x + initialWidth * 7/10, y + initialHeight * 6/10);
  curveVertex(x + initialWidth * 5/10, y + initialHeight * 5/10);
  curveVertex(x + initialWidth * 6/10, y + initialHeight * 3/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight);
  curveVertex(x + initialWidth, y + initialHeight * 9/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight * 8/10);
  curveVertex(x + initialWidth * 8/10, y + initialHeight * 8/10);
  endShape();
}// end of drawInitials()