// Dartmouth CS 2, Winter 2009, Chris Bailey-Kellogg
// Notes 8 | Sketch 2

int sz = 25;    // how big to draw

void setup() 
{
  noStroke();
  smooth();
}

void draw()
{
  // Nothing to do here (but need the blank function anyway)
}

void mousePressed()
{
  fill(random(255),random(255),random(255));
  drawC(mouseX, mouseY, sz);
}

void keyPressed()
{
  if (key=='Z') {      // Bigger
    if (sz<50) sz+=5;
  }
  else if (key=='z') {
    if (sz > 5) sz-=5;
  }
}

// Draw a letter "C" of size s, with the upper left at (x,y).
void drawC(float x, float y, int s)
{
  beginShape();
  vertex(x,       y);
  vertex(x+s,     y);
  vertex(x+s,     y+0.2*s);
  vertex(x+0.2*s, y+0.2*s);
  vertex(x+0.2*s, y+0.8*s);
  vertex(x+s,     y+0.8*s);
  vertex(x+s,     y+s);
  vertex(x,       y+s);
  endShape(CLOSE);
}