class Food {
  
  int s = 10;
  float xPos = random(width);
  float yPos = random(height);
  
  void drawFood(){
    int n = int(random(5));
    if (n == 0) { fill(170, 0, 11); //dark red
    } else if (n == 1) { fill (255, 0, 0); //bright red
    } else if (n == 2) { fill (242, 247, 0); //yellow
    } else if (n == 3) { fill (250, 66, 94); //red
    } else if (n == 4) { fill (245, 147, 0); //orange
    } ellipse(xPos, yPos, s, s);
  }
  
  boolean isTouching(int x, int y) {
    return dist(x, y, xPos, yPos) <= s;
  }
  
}

import ddf.minim.*;
import ddf.minim.signals.*;
import ddf.minim.analysis.*;
import ddf.minim.effects.*;

Minim minim;
AudioSample bite;
AudioSample move;
AudioSample bomb;

ArrayList<Food> list = new ArrayList<Food>();

float[] x = new float[100];
float[] y = new float[100];
float segLength = 0.1;

void setup() {
  size(500, 500);
  smooth();
  minim = new Minim(this);
  bite = minim.loadSample("Dragon Bite.wav");
  move = minim.loadSample("Sliding.wav");
  bomb = minim.loadSample("Explosion 2.wav");
}

void draw() {
  //clear clutter
  background(225);
  
  //wormy
  strokeWeight(10);
  stroke(0);
  
  dragSegment(0, mouseX, mouseY);
  for(int i=0; i<x.length-1; i++) {
    dragSegment(i+1, x[i], y[i]);
  }
  
  noStroke();
  
  //wormy eye
  fill(0);
  ellipse(mouseX, mouseY, 15, 15);
  fill(255);
  ellipse(mouseX, mouseY, 10, 10);
  fill(0);
  ellipse(mouseX, mouseY, 5, 5);
  
  //eat food
  for (int i = 0; i < list.size(); ++i) {
    Food meal = list.get(i);
    if (meal.isTouching(mouseX, mouseY)) {
      list.remove(meal);
      bite.trigger();
      if (segLength > 10) { bomb.trigger();
        for (int f = 0; f < list.size(); ++f) {
        meal = list.get(f);
         if (f > -1) {
           list.remove(meal);
           f -= 1;
           }
           } segLength = 0.1;
           } else if (segLength > 5) { segLength = segLength + 0.2;
           } else {segLength = segLength + 0.1;
        } i -= 1;
    }
  }
  
  if (mousePressed && (mouseButton == RIGHT)){
    Food meal = new Food();
    list.add(meal);
}
  
  //draw current meals
  for(Food meal : list){
    meal.drawFood();
  }
  
}
  //how the worm flows
  void dragSegment(int i, float xin, float yin) {
    float dx = xin - x[i];
    float dy = yin - y[i];
    float angle = atan2(dy, dx);  
    x[i] = xin - cos(angle) * segLength;
    y[i] = yin - sin(angle) * segLength;
    segment(x[i], y[i], angle);
}

//each segment of the worm
  void segment(float x, float y, float a) {
    pushMatrix();
    translate(x, y);
    rotate(a);
    line(0, 0, segLength, 0);
    popMatrix();
}

  //spawn more food
  void mouseClicked() {
    Food meal = new Food();
    list.add(meal);
}

  //void mouseMoved() {
  //  move.trigger();
  //}

  void stop() {
    if (bite != null) bite.close();
    if (move != null) move.close();
    minim.stop();
    super.stop();
}