/*
Notes:
Need to get down NPR-pencil function/technique
can distort lines using sine function and perlin noise (more smooth/natural)


Objects composed of
-lines
-shading

Optimization of Pencil Drawing
-once rendered, need to find way to stop constantly re-computing values
-whats the slowest part?

Pencil function needs to
-take in a series of points to pass through
  -perhaps also have primitives which can be drawn (circle...)
-interpolate line through points
-perturb endpoints
-sine/perlin distort points along line
-make texture of pencil

Character class
-platformer...
-position/velocity...


Effects
-draw as walk
-wigglevision, continually redraw lines




*/

/*
import ddf.minim.*;

Minim minim;
AudioPlayer player;

*/

//test drawing forest
int screen_x = 1000;
int bg_size = 2048; //number of pixels in background image in x direction
//in order to continuously render
int screen_y = 500; //use these two to normalize for resolution
//and screen size
PImage paper;
ArrayList vert;
character guy;
ArrayList trees;
ArrayList ground_list;
float xpos = 0;  //positon of left edge of screen
float motion_x = 0;
float fade = 300;
float last_render_x = 300;

int temp = 0;
void setup()
{
   size(1000,500);
   smooth();
   
   //start music
   /*
   minim = new Minim(this);
   player = minim.loadFile("talk.mp3");
   
   player.play();
   */
   
   frameRate(30);
   trees = new ArrayList();
   ground_list = new ArrayList();
   //paper = loadImage("crumpled_paper.jpg");

   //paper = loadImage("plain-white-paper.jpg");
   
   trees.add(new tree(100,200,200));
   trees.add(new tree(400, 100, 300));
   trees.add(new tree(500,150,250));
   trees.add(new tree(800,0,400));
   
   ground_list.add(new ground(0,400));
   ground_list.add(new ground(300,400));
   ground_list.add(new ground(600,400));
   ground_list.add(new ground(900,400));
   
   guy = new character();
    
}


void draw()
{
  //keep adding more stuff
  if (xpos > last_render_x)
  {
    last_render_x += 300;
    ground_list.add(new ground(last_render_x + 600,400));
    int num_trees = round(random(0,2));
    for (int i = 0; i < num_trees; ++i)
    {
      float tall = random(50,450);
      trees.add(new tree(random(last_render_x + 600, last_render_x + 900),height-100-tall,tall));
    }
  }
  
  
  
  //background(255);
  xpos += motion_x;
  if (motion_x != 0)
  {
    guy.move();
  }
 
  pushMatrix();
  translate(-xpos,0);
  
  //determine where to put background
  
  //image(paper,((int)xpos/bg_size)*bg_size,0);
 // image(paper,((int)xpos/bg_size - 1)*bg_size,0);
  //image(paper,((int)xpos/bg_size + 1) * bg_size,0);
  background(255);
  fill(0,fade);
  fade -= 1;
  noStroke();
  rect(xpos,0,width,height);
  stroke(0);
  guy.update();
  
  //show ground
  if (fade < 100)
  {
  
  //show trees
  tree temp;
  stroke(00,70);
  for (int i = 0; i < trees.size(); ++i)
  {
    
    temp = (tree)trees.get(i);
    temp.render(xpos);
  }
  
  ground temp1;
  stroke(0);
  for (int i = 0; i < ground_list.size(); ++i)
  {
    temp1 = (ground)ground_list.get(i);
    temp1.render(xpos);
  }
  
  }
  popMatrix();
    
  

 
}
  
  
void keyPressed()
{
  if (keyCode == RIGHT)
  {
    motion_x = 5;
  }
  else if (keyCode == LEFT)
  {
    motion_x = -5;
  }
  guy.move();
  
  
}

void keyReleased()
{
  motion_x = 0;
  guy.stop();
}

void stop()
{/*
  player.close();

  minim.stop();
  super.stop();
  */
}