// Seung Joon Choi
// http://epicure.graffity.net
// epicure@hanmail.net
// 2005.10.14.

Vec3 eyeFrom;
Vec3 eyeTo;

Bldg[] bs;

PLife[] pls;

boolean b_pause = true;
float wx = 0;
float wy = 0;
float wrx = 0;
float wry = PI / 4;
float dd = 200;

int trace_id = -1;
int trace_id2 = 0;

boolean show_blds = true;
boolean show_terrain = false;

boolean lifestyle1 = false;
boolean lifestyle2 = false;
boolean lifestyle3 = true;

boolean show_line_black = true; 
boolean show_line_red = false;

boolean mode_friendly = true;
boolean mode_intimate = true;

void setup()
{
  size(640, 480, P3D);
  noStroke();
  colorMode(HSB, 1.0);
  ellipseMode(CENTER_RADIUS);
  
  eyeFrom = new Vec3(0, 0, 500);
  eyeTo = new Vec3(0, 0, 0);
  
  bs = new Bldg[30];
  for(int i = 0; i < bs.length; i++)
  {
    bs[i] = new Bldg();
    bs[i].x = (1 - random(2)) * 400;
    bs[i].y = (1 - random(2)) * 400;
  }
  
  for(int j = 0; j < 10; j++)
  for(int i = 0; i < bs.length; i++)
  {
    Bldg bld = bs[i];
    bld.Init(bs);
  }
  
  
  pls = new PLife[200];
  for(int i = 0; i < pls.length; i++)
  {
    pls[i] = new PLife();
    PLife pl = pls[i];
    pl.x = (1 - random(2)) * 500;
    pl.y = (1 - random(2)) * 500;
    int j = int(random(bs.length));
    pl.X = bs[j].x;    
    pl.Y = bs[j].y;
    //pl.x = bs[j].x;    
    //pl.y = bs[j].y;
  }
  
  //------------------- SL Part for the Terrain
  sl_width = 32; 
  sl_height = 32;
  
  canvas = new PImage(sl_width, sl_height);
  hmap = new float[sl_width * sl_height];
  
  buildCanvas(); 
  buildHeightField();  
}

void Camera()
{
  if(trace_id == -1)
  {
  float dt = 0.1;
  
  float dx = width * 0.5 - mouseX;
  float dy = height * 0.5 - mouseY;  
  
  float d = sqrt(dx*dx + dy*dy);
  if(d > 0)
  {
    wx = dx / d;
    wy = dy / d;
  }  
  
  if(mousePressed)
  {
    dd += 10;
  }
  
  camera(eyeFrom.x, eyeFrom.y, eyeFrom.z,
         eyeTo.x, eyeTo.y, eyeTo.z,
         0, 1, 0); 
         
  if(!b_pause)
  {
    wrx += -wx * PI * 0.002;
    wry += -wy * PI * 0.002;
  }
  translate(0, 0, dd);
  rotateY(wrx);
  rotateX(wry);    
  }
  else
  {    
    PLife pl = pls[trace_id];
    PLife pl2 = pls[trace_id2];

    camera(pl.x, pl.y, pl.h,
         pl2.x, pl2.y, pl2.h,
         0, 0, -1);
  }
}

void keyPressed()
{
  if(key == 'z')
  {
    dd += 10;
  }
  
  if(key == 'x')
  {
    dd -= 10;
  }
  
  if(keyCode == 32) // SPACE
  {
    b_pause = !b_pause;
  }
  
  if(key == 'c')
  {
    trace_id = -1;
  }
  
  if(key == 't')
  {
    trace_id = int(random(pls.length));
    trace_id2 = int(random(pls.length));
  }
  
  if(key == 'q')
  {
    show_blds = !show_blds;
  }
  
  if(key == 'w')
  {
    show_terrain = !show_terrain;
  }
  
  if(key == '1')
  {
    lifestyle1 = !lifestyle1;
    println("lifestyle1 : " + lifestyle1);
  }
  
  if(key == '2')
  {
    lifestyle2 = !lifestyle2;
    println("lifestyle2 : " + lifestyle2);
  }
  
  if(key == '3')
  {
    lifestyle3 = !lifestyle3;
    println("lifestyle3 : " + lifestyle3);
  }
  
  if(key == '9')
  {
    show_line_black = !show_line_black;
  }
  
  if(key == '0')
  {
    show_line_red = !show_line_red;
  }
  
  if(key == 'f')
  {
    mode_friendly = !mode_friendly;
  }
  
  if(key == 'i')
  {
    mode_intimate = !mode_intimate;
  }
}


void draw()
{
  background(0.7, 1, 0.5);  
  lights();

  Camera();   
  /*
  fill(0.7, 1, 0.4);
  sphere(2500);
  */  
  scale(0.25);
  stroke(0,0,0,0.1);
  
  
  if(show_terrain)
  {
    buildHeightField();
    pointLight(0, 0, 1, 0, 0, 200); 
    pushMatrix();
      drawHField(50);
    popMatrix();
    sss += 0.02;
  }

  for(int i = 0; i < bs.length; i++)
  {

    bs[i].Interact(pls);
    if(show_blds) bs[i].Render();
  }
 
  for(int i = 0; i < pls.length; i++)
  {
    PLife pl = pls[i];    
    pl.Interact(pls);
    pl.Live();
    //-------------------
    int xx = int(pl.y / 600.0 * 16) + 15;   
    int yy = int(pl.y / 600.0 * 16) + 15;    
    if(xx < 0) xx = 0;
    if(yy < 0) yy = 0;
    if(xx > 31) xx = 31;
    if(yy > 31) yy = 31;
    int ii = yy * 31 + xx;
    float v = hmap[ii];
    pl.z = v * 10;
    //-------------------
    pl.Render();
  }  
}