import processing.xml.*;
import java.util.*;
XMLElement xml;

//sets deafault feed;
String URL = "http://www.engadget.com/rss.xml";  // http://www.dvorak.org/blog/?feed=rss ||engadget.xml | 

int feedNum = 0;
//** vars for feed txt
String titleItem = "Can you rock da box?!?";
java.util.List titles;
int hitCnt = 0;
int titleIndex = -1;
String feedLabel = "";
String gameResults = "";
//vars for opponent
int xmove = 0;
int gogo = 0;
//** vars for laser beam
int laserCount = 0;
int lineY1 = height-80;
int lineY2 = height-100;
boolean laserMove = false;
//sets default frameRate
float frameCnt = 12;

//* SETUP
void setup() {
  size (600,400);
  smooth();
  fill(0);
  frameCnt = 12;
  frameRate(frameCnt);
  titles = scrape(URL);
  // for (Iterator i=titles.iterator(); i.hasNext();) {
  //  println((String)i.next());
  // }
} 

//* DRAW
void draw() {
  println(frameCnt);
  println(frameRate);
  background(0);
  PFont font;
  PFont font2;
  font = loadFont("Tahoma-14.vlw");
  font2 = loadFont("CenturyGothic-30.vlw");
  textFont(font);
  fill(255);

  //* label for feed
  text(titleItem, width/30, height/6);

  //** label for different feed options
  fill(255);
  text("d = dvorak.org  |  e = engadget.com  |  i = infoworld.com", width/30, height-10);


  //*CALLS GOGO FUNCTION to get feed label at the top
  getFeed();
  textFont(font2);
  text(feedLabel, width/1.75, height/10);

  //*CALL LASER FUNCTION
  laser();
  //*CALL GOGO FUNCTION FOR BOUNCING BOX
  gogo();

  //** USER AND LASER COUNT DISPLAY
  smooth();
  stroke(150, 0, 0);
  fill(120, 120, 120,75);
  triangle(width/2-40, height-40, width/2, height-85, width/2+40, height-40);
  textFont(font);

  //** draws number of shots left
  String laserString = str(laserCount);
  fill(255);
  text(laserString, width/2 + 50, height-40);

  //**determines titleItem after the game is done... 
  if ((laserCount <= 0)) {
    if (hitCnt > 0) {
      gameResults = "Yay! You got " + hitCnt + " out of " + feedNum;
      fill(150, 204, 47);
    }
    else {
      gameResults = "Boo! You got " + hitCnt + " out of " + feedNum;
      fill(150, 0, 0);
    }
    text(gameResults, width/30, height/5);
  }
}

//** function that strips items out of feed and puts them in List
java.util.List scrape(String url) {
  titles = new ArrayList();
  xml = new XMLElement(this, url);
  XMLElement category = xml.getChild(0);
  XMLElement[] children = category.getChildren();

  for (int i=0; i<children.length; i++) {
    if (children[i].getName().equals("item")) {
      XMLElement[] parts = children[i].getChildren();
      titles.add(parts[0].getContent());
      laserCount ++;
      feedNum ++;
    }
  }
  return titles;
}


//** GETFEED: determines label at top, calls appropriate feed into list, and resets variables
void getFeed() {
  if (URL == "http://www.engadget.com/rss.xml") { //engadget.xml 
    feedLabel = "Engadget says...";
  }
  else if (URL == "infoworld.xml") { //http://www.infoworld.com/rss/news.xml
    feedLabel = "InfoWorld says...";
  }
  else if (URL == "http://www.dvorak.org/blog/?feed=rss") {
    feedLabel = "Dvorak says...";
  }

  //* determines which feed to use based on key input
  if(keyPressed) {
    if (key == 'e' || key == 'E') {
      URL = "http://www.engadget.com/rss.xml"; //engadget.xml 
    }
    else if (key == 'i' || key == 'I') {
      URL = "http://www.infoworld.com/rss/news.xml"; //infoworld.xml
    }
    else if (key == 'd' || key == 'D') {
      URL = "http://www.dvorak.org/blog/?feed=rss";
    }
    else if (keyCode == ENTER || keyCode == RETURN) {
      URL = URL;
    }

    // reset all variables for game
    titles.clear();
    laserCount = 0;
    titleIndex = -1;
    hitCnt = 0;
    frameCnt = 12;
    gameResults = "";
    feedNum = 0;
    titles = scrape(URL);

    //for (Iterator i=titles.iterator(); i.hasNext();) {
    // println((String)i.next() + " " + URL);
    // }
    if (titleIndex == -1) {
      titleItem = "Can you rock da box?!?";
    }
    else if (titleIndex >= 0){
      titleItem = titles.get(titleIndex).toString();
    }
  } 
}

//** GOGO: 
void gogo() {
  strokeWeight(1);
  //** OPPONENT SWITCH** these if statements are the switch for back and forth motion
  fill(120, 120, 120,75);
  if(gogo == 0){
    //set the stroke color and make it more transparent as x decreases 
    stroke(150, 204, 47, xmove/2);
    rect(xmove, 100, 50, 50);
    xmove += 20;
    //if it hits the side of the screen, reverse directions
    if(xmove >= width){
      gogo = 1;
    }
  } 

  //same as above, just in the other direction by decrementing xmove
  else if(gogo == 1){
    stroke(150, 204, 47, xmove);
    rect(xmove, 100, 50, 50);
    xmove -= 20;
    if(xmove <= 0){
      gogo = 0;
    }
  }  
}

//** MOUSECLICKED: decrements lasercount and makes laser mean move up stage
void mouseClicked() {
  if (laserCount > 0) {
    laserMove = true;
    laserCount --;
  }
}

//** LASER: 
void laser() {
  if (lineY2 <= 0) {
    laserMove = false;
  }
  if (laserMove) {
    stroke(150, 0, 0); 
    strokeWeight(5);
    line(width/2, lineY1, width/2, lineY2);
    lineY1 -= 20;
    lineY2 -= 20;

    if ( (lineY2 >= 100) && (lineY2 <= 150) && (xmove >= abs(width/2-30)) && (xmove <=abs(width/2+30)) )  {
      laserMove = false;
      titleIndex ++;
      hitCnt ++;
      frameCnt ++;
      redraw();
      frameRate(frameCnt);
      float rand = random(0, abs(feedNum));
      titleItem = titles.get(titleIndex).toString();
    }
  }
  // resets the position of the laser
  else if (laserMove == false) {
    lineY1 = height-80;
    lineY2 = height-100;
  }
}