class Room {

  public static final int FRONT_WALL_NORMAL = 0;
  public static final int FRONT_WALL_IGNORE = 1;
  public static final int FRONT_WALL_HAS_HOLE = 2;
  private int FRONT_WALL = FRONT_WALL_NORMAL;

  public static final int BACK_WALL_NORMAL = 0;
  public static final int BACK_WALL_IGNORE = 1;
  public static final int BACK_WALL_HAS_HOLE = 2;
  private int BACK_WALL = FRONT_WALL_NORMAL;

  private Sequence controlSequence;

  private float x1, y1, x2, y2, z1, z2;
  private float hx1, hy1, hz1, hx2, hy2, hz2;
  private color outsideColor = color(64,64,64);
  private color c, floorColor;
  private float bright = 1.0;

  Room() {
  }

  public void setFrontWall(int fw) {
    FRONT_WALL = fw;
  }

  public void setBackWall(int bw) {
    BACK_WALL = bw;
  }

  public void setScreenRectangle(float _x1, float _y1, float _x2, float _y2, float _z1, float _z2) {
    x1 = _x1;
    y1 = _y1;
    z1 = -_z1;
    x2 = _x2;
    y2 = _y2;
    z2 = -_z2;
  }

  public void setHoleRectangle(float _hx1, float _hx2, float _hz1, float _hz2) {
    hx1 = _hx1;
    hx2 = _hx2;
    //hy1 = _hy1;
    //hy2 = _hy2;
    hz1 = -_hz1;
    hz2 = -_hz2;
  }

  public void setColor(color _c) {
    c = _c;
    floorColor = _c;
  }
  
  public void setFloorColor(color _c) {
    floorColor = _c;
  }
  
  public void updateBrightness(float p) {
    bright = p;
  }
  
  public void draw() {    

    // DRAW FLOOR LINES:
    noStroke();
    fill(0,0,0);
    pushMatrix();
      translate(x1+(x2-x1)/2.0,z1-1,y1);
      box(x2-x1,2,2);
    popMatrix();
    
    pushMatrix();
      translate(x1+1,z1-1,y1+(y2-y1)/2.0);
      box(2,2,y2-y1);
    popMatrix();
    
    pushMatrix();
      translate(x2-1,z1-1,y1+(y2-y1)/2.0);
      box(2,2,y2-y1);
    popMatrix();
    
    // draw back lines:
    pushMatrix();
      translate(x1+1,z1+(z2-z1)/2.0,y1+1);
      box(2,z1-z2,2);
    popMatrix();
    pushMatrix();
      translate(x2-1,z1+(z2-z1)/2.0,y1+1);
      box(2,z1-z2,2);
    popMatrix();
    
    

    noStroke();
    fill(red(floorColor)*bright,green(floorColor)*bright,blue(floorColor)*bright);
    beginShape(QUADS);
    // FLOOR:
    vertex(x1,z1-0.5,y1);
    vertex(x2,z1-0.5,y1);
    vertex(x2,z1-0.5,y2);
    vertex(x1,z1-0.5,y2);
    fill(red(c)*bright,green(c)*bright,blue(c)*bright);
    // RIGHT WALL:
    vertex(x2-0.5,z1,y1);
    vertex(x2-0.5,z1,y2);
    vertex(x2-0.5,z2,y2);
    vertex(x2-0.5,z2,y1);
    // LEFT WALL:
    vertex(x1+0.5,z1,y1);
    vertex(x1+0.5,z1,y2);
    vertex(x1+0.5,z2,y2);
    vertex(x1+0.5,z2,y1);
    // BACK WALL:
    if (BACK_WALL == BACK_WALL_NORMAL) {
      vertex(x1,z1,y1+0.5);
      vertex(x1,z2,y1+0.5);
      vertex(x2,z2,y1+0.5);
      vertex(x2,z1,y1+0.5);
    } 
    else if (BACK_WALL == BACK_WALL_HAS_HOLE) {
      vertex(x1,z1,y1+0.5);
      vertex(x1,z2,y1+0.5);
      vertex(hx1,z2,y1+0.5);
      vertex(hx1,z1,y1+0.5);

      vertex(hx2,z1,y1+0.5);
      vertex(hx2,z2,y1+0.5);
      vertex(x2,z2,y1+0.5);
      vertex(x2,z1,y1+0.5);

      vertex(hx1,z1,y1+0.5);
      vertex(hx2,z1,y1+0.5);
      vertex(hx2,hz1,y1+0.5);
      vertex(hx1,hz1,y1+0.5);

      vertex(hx1,z2,y1+0.5);
      vertex(hx2,z2,y1+0.5);
      vertex(hx2,hz2,y1+0.5);
      vertex(hx1,hz2,y1+0.5);
    }

    // FRONT WALL:
    if (FRONT_WALL == FRONT_WALL_NORMAL) {
      vertex(x1,z1,y2-0.5);
      vertex(x1,z2,y2-0.5);
      vertex(x2,z2,y2-0.5);
      vertex(x2,z1,y2-0.5);
    }  
    else if (FRONT_WALL == FRONT_WALL_HAS_HOLE) {
      vertex(x1,z1,y2-0.5);
      vertex(x1,z2,y2-0.5);
      vertex(hx1,z2,y2-0.5);
      vertex(hx1,z1,y2-0.5);

      vertex(hx2,z1,y2-0.5);
      vertex(hx2,z2,y2-0.5);
      vertex(x2,z2,y2-0.5);
      vertex(x2,z1,y2-0.5);

      vertex(hx1,z1,y2-0.5);
      vertex(hx2,z1,y2-0.5);
      vertex(hx2,hz1,y2-0.5);
      vertex(hx1,hz1,y2-0.5);

      vertex(hx1,z2,y2-0.5);
      vertex(hx2,z2,y2-0.5);
      vertex(hx2,hz2,y2-0.5);
      vertex(hx1,hz2,y2-0.5);
    }
    endShape();






    stroke(0,0,0);
    fill(outsideColor);

    // DRAW OUTSIDE:
    beginShape(QUADS);
    // FLOOR:
    vertex(x1,z1,y1);
    vertex(x2,z1,y1);
    vertex(x2,z1,y2);
    vertex(x1,z1,y2);
    // RIGHT WALL:
    vertex(x2,z1,y1);
    vertex(x2,z1,y2);
    vertex(x2,z2,y2);
    vertex(x2,z2,y1);
    // LEFT WALL:
    vertex(x1,z1,y1);
    vertex(x1,z1,y2);
    vertex(x1,z2,y2);
    vertex(x1,z2,y1);
    // BACK WALL:
    if (BACK_WALL == BACK_WALL_NORMAL) {
      vertex(x1,z1,y1);
      vertex(x1,z2,y1);
      vertex(x2,z2,y1);
      vertex(x2,z1,y1);
    } 
    else if (BACK_WALL == BACK_WALL_HAS_HOLE) {
      vertex(x1,z1,y1);
      vertex(x1,z2,y1);
      vertex(hx1,z2,y1);
      vertex(hx1,z1,y1);

      vertex(hx2,z1,y1);
      vertex(hx2,z2,y1);
      vertex(x2,z2,y1);
      vertex(x2,z1,y1);

      vertex(hx1,z1,y1);
      vertex(hx2,z1,y1);
      vertex(hx2,hz1,y1);
      vertex(hx1,hz1,y1);

      vertex(hx1,z2,y1);
      vertex(hx2,z2,y1);
      vertex(hx2,hz2,y1);
      vertex(hx1,hz2,y1);
    }
    // FRONT WALL:
    if (FRONT_WALL == FRONT_WALL_NORMAL) {
      vertex(x1,z1,y2);
      vertex(x1,z2,y2);
      vertex(x2,z2,y2);
      vertex(x2,z1,y2);
    } 
    else if (FRONT_WALL == FRONT_WALL_HAS_HOLE) {
      vertex(x1,z1,y2);
      vertex(x1,z2,y2);
      vertex(hx1,z2,y2);
      vertex(hx1,z1,y2);

      vertex(hx2,z1,y2);
      vertex(hx2,z2,y2);
      vertex(x2,z2,y2);
      vertex(x2,z1,y2);

      vertex(hx1,z1,y2);
      vertex(hx2,z1,y2);
      vertex(hx2,hz1,y2);
      vertex(hx1,hz1,y2);

      vertex(hx1,z2,y2);
      vertex(hx2,z2,y2);
      vertex(hx2,hz2,y2);
      vertex(hx1,hz2,y2);
    }
    endShape();
  }

}