/*
 * Creative Coding
 * Week 1, 02 - Draw your name! (part 2)
 * by Indae Hwang and Jon McCormack
 * Copyright (c) 2014 Monash University
 
 * This program allows you to draw using the mouse.
 * Press 's' to save your drawing as an image.
 * Press 'r' to erase your drawing and start with a blank screen
 * 
 */

// variables for the angle (in radians) and increment 
float angle;
float inc;

void setup() {
  size(500, 500);
  background(0);

  rectMode(CENTER);  // rectangles drawn from the centre

  // initialise angle and inc to 0
  angle = 0;
  inc = 0;
}

void draw() {

  /* draw a rectangle at your mouse point while you are pressing 
   the left mouse button */

  // map the mouse x position to the range (0.01, 0.08)
  inc = map(mouseX, 0, width, 0.01, 0.08);

  // incremment the current angle
  angle = angle + inc;

  if (mousePressed) {

    stroke(170); 
    fill(120, 60);

    rect(mouseX, mouseY, 2, 2);

    line(mouseX, mouseY, pmouseX, pmouseY); // pmouse is the mouse position at the previous frame

    // oscillate the radius over time
    float radius = 30 * abs( sin(frameCount) );

    float first_tempX  = mouseX + radius * cos( angle);
    float first_tempY  = mouseY + radius * sin( angle);
    float second_tempX = mouseX + radius * cos(-angle);
    float second_tempY = mouseY + radius * sin(-angle);

    // draw some lines and circles using transparency
    stroke(110, 100);
    line(mouseX, mouseY, first_tempX, first_tempY);
    line(mouseX, mouseY, second_tempX, second_tempY);

    float temp_w = random(3);
    ellipse(first_tempX, first_tempY, temp_w, temp_w);
    ellipse(second_tempX, second_tempY, temp_w, temp_w);
  }

  // save your drawing when you press keyboard 's'
  if (keyPressed == true && key == 's') {
    saveFrame("yourName.jpg");
  }

  // erase your drawing when you press keyboard 'r'
  if (keyPressed == true && key == 'r') {
    background(0);
  }
}
					
				

					
/*
 * Creative Coding
 * Week 1, 02 - Draw your name! (part 2)
 * by Indae Hwang and Jon McCormack
 * Copyright (c) 2014 Monash University
 
 * Modified by Gerard Holden to add some colour.
 
 * This program allows you to draw using the mouse.
 * Press 's' to save your drawing as an image.
 * Press 'r' to erase your drawing and start with a blank screen
 * 
 */

// variables for the angle (in radians) and increment 
float angle;
float inc;
int rvalue = 64;
int gvalue = 128;
int bvalue = 192;
int rdir = 1;
int gdir = -1;
int bdir = 1;

void setup() {
  size(500, 500);
  background(0);

  rectMode(CENTER);  // rectangles drawn from the centre

  // initialise angle and inc to 0
  angle = 0;
  inc = 0;
}


void draw() {

  /* draw a rectangle at your mouse point while you are pressing 
   the left mouse button */

  // map the mouse x position to the range (0.01, 0.08)
  inc = map(mouseX, 0, width, 0.01, 0.08);

  // incremment the current angle
  angle = angle + inc;

  if (mousePressed) {

    rvalue = rvalue + rdir;
    if (rvalue > 224) {
      rdir = -1*int(random(5));
    }
    if (rvalue < 32) {
      rdir = 1*int(random(5));
    }
    
    gvalue = gvalue + gdir;
    if (gvalue > 224) {
      gdir = -1*int(random(5));
    }
    if (gvalue < 32) {
      gdir = 1*int(random(5));
    }  
  
    bvalue = bvalue + bdir;
    if (bvalue > 224) {
      bdir = -1*int(random(5));
    }
    if (bvalue < 32) {
      bdir = 1*int(random(5));
    }  
    
    // stroke(rvalue,gvalue,bvalue,128); 
    // fill(120, 60);

    // rect(mouseX, mouseY, 2, 2);

    // line(mouseX, mouseY, pmouseX, pmouseY); // pmouse is the mouse position at the previous frame

    // oscillate the radius over time
    float radius = 30 * abs( sin(frameCount) );

    float first_tempX  = mouseX + radius * cos( angle);
    float first_tempY  = mouseY + radius * sin( angle);
    float second_tempX = mouseX + radius * cos(-angle);
    float second_tempY = mouseY + radius * sin(-angle);

    // draw some lines and circles using transparency
    stroke(rvalue,gvalue,bvalue,128);
    line(mouseX, mouseY, first_tempX, first_tempY);
    line(mouseX, mouseY, second_tempX, second_tempY);

    float temp_w = random(3);
    // ellipse(first_tempX, first_tempY, temp_w, temp_w);
    // ellipse(second_tempX, second_tempY, temp_w, temp_w);
  }


  // save your drawing when you press keyboard 's'
  if (keyPressed == true && key == 's') {
    saveFrame("yourName.jpg");
  }

  // erase your drawing when you press keyboard 'r'
  if (keyPressed == true && key == 'r') {
    background(0);
  }
}