//Conrad Menchine's pointillism effect generator
//hold down the left mouse button to draw points

//shitty enum
static int FUR = 1;
static int SQUARES = 2;
static int BEZ = 3; //bezier
static int CIRCLES = 4;
static int RAND = 5;

int mode = BEZ;

int dotSize = 16;
int minDotSize = 4; //used for circle effect
float dotSkew = 0.6; //used for circle effect

PImage photo;
void setup(){
  photo = loadImage("lake.jpg"); //load your own photo
  size(1400,800);

  noStroke();

}

void genPoints(){
  for(int i = 0; i < 1000; i++) dot(random(width), random(height));
}
void draw(){
  if(mousePressed) genPoints(); //shame on me
}
void dot(float x, float y){
  //Why didn't I use a switch/case? Because I'm a dingus, that's why
  if(mode == FUR){
    color dotCol = photo.get((int)x,(int)y);
    fill(dotCol);
    beginShape();
      curveVertex(x + random(dotSize*2), y);
      curveVertex(x, y + random(dotSize*2));
      curveVertex(x - random(dotSize*2), y);
      curveVertex(x, y - random(dotSize*2));
    endShape();
  }
  if(mode == SQUARES){
    color dotCol = photo.get((int)x,(int)y);
    fill(dotCol);
    beginShape();
      vertex(x + random(dotSize), y);
      vertex(x, y + random(dotSize));
      vertex(x - random(dotSize), y);
      vertex(x, y - random(dotSize));
    endShape();
  }
  if(mode == BEZ){
    color dotCol = photo.get((int)x,(int)y);
    fill(dotCol);
    float f1 = random(dotSize);
    float f2 = random(dotSize);
    float f3 = random(dotSize);
    float f4 = random(dotSize);

    beginShape();
      vertex(x + f1, y);
      //bezierVertex(x + f1, y, x, y + f2, x - f3, y);
      bezierVertex(x, y + f2, x - f3, y, x, y - f4);
      bezierVertex(x - f3, y, x, y - f4, x + f1, y);
      bezierVertex(x, y - f4, x + f1, y, x, y + f2);
    endShape();
  }
  if(mode == CIRCLES){
    color dotCol = photo.get((int)x,(int)y);
    fill(dotCol);
    ellipse(x,y, random(dotSize, minDotSize), random(minDotSize * dotSkew, dotSize * dotSkew));
  }
  if(mode == RAND){
    //just draws all of them and maybe selects itself sometimes too/ who cares; it works.
    mode = (int) random(RAND); //that's 5 for those of you following along at home
    dot(x,y); //wowie, recursion! I haven't seen that used since my last programming class and literally never anywhere else!
    mode = RAND;
  }
}