// mPlay.java - Shall we play with lines?

import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class mPlay extends Applet implements Runnable, MouseListener, MouseMotionListener, ItemListener{
  private static Label         point = new Label("???, ???");
  private static Checkbox      clear = new Checkbox("Clear Flag", true);

  private static TextField     tf    = new TextField("10", 2);

  private static CheckboxGroup cbg   = new CheckboxGroup();
  private static Checkbox      cb1   = new Checkbox("Laser",      cbg, true);
  private static Checkbox      cb2   = new Checkbox("Riber",      cbg, false);
  private static Checkbox      cb3   = new Checkbox("Targetting", cbg, false);
  private static Checkbox      cb4   = new Checkbox("Spiral",     cbg, false);
  private static Checkbox      cb5   = new Checkbox("Windmill",   cbg, false);
  private static Checkbox      cb6   = new Checkbox("Hurricane",  cbg, false);
  private static Checkbox      cb7   = new Checkbox("Bomb",       cbg, false);

  private static int x, y, width, height, randPt, randCol;

  public void init(){
    width  = getSize().width;
    height = getSize().height;  // アプレットのwidth, heightを取得

/* * * * * * * * パラメータ受け取り＆セット * * * * * * * */
    int    bg         = Integer.parseInt(getParameter("bgcolor"), 16);
    int    fontSize   = Integer.parseInt(getParameter("fontSize"));
    String fontFamily = getParameter("family");
    String fontBold   = getParameter("font");

    setLayout(new BorderLayout());
    setBackground(new Color(bg));

         if(fontBold.toLowerCase().equals("bold"))       setFont(new Font(fontFamily, Font.BOLD, fontSize));
    else if(fontBold.toLowerCase().equals("italic"))     setFont(new Font(fontFamily, Font.ITALIC, fontSize));
    else if(fontBold.toLowerCase().equals("bolditalic")) setFont(new Font(fontFamily, Font.BOLD+Font.ITALIC, fontSize));
    else                                                 setFont(new Font(fontFamily, Font.PLAIN, fontSize));
/* * * * * * * * * * * * ここまで * * * * * * * * * * * * */

    Panel p1 = new Panel(new FlowLayout());  // 上の情報表示パネル
    p1.add(new Label("Start coordinate :"));
    p1.add(point);
    p1.add(new Label("; Quantity :"));
    p1.add(tf);

    Panel p2 = new Panel(new GridLayout(2, 4));  // 下のメニューパネル
    p2.add(clear);    p2.add(cb1);
    p2.add(cb2);      p2.add(cb3);
    p2.add(cb4);      p2.add(cb5);
    p2.add(cb6);      p2.add(cb7);

    add(p1, BorderLayout.NORTH);  add(p2, BorderLayout.SOUTH);

    cb1.addItemListener(this);    cb2.addItemListener(this);
    cb3.addItemListener(this);    cb4.addItemListener(this);
    cb5.addItemListener(this);    cb6.addItemListener(this);
    cb7.addItemListener(this);
      // 選択が変更されるとitemStateChangedメソッドを呼び出す

    cb1.addMouseListener(this);    cb2.addMouseListener(this);
    cb3.addMouseListener(this);    cb4.addMouseListener(this);
    cb5.addMouseListener(this);    cb6.addMouseListener(this);
    cb7.addMouseListener(this);    clear.addMouseListener(this);

    addMouseListener(this);
    addMouseMotionListener(this);
  }

  public void mouseMoved(MouseEvent e){
    x = e.getX();    y = e.getY();
    point.setText(Integer.toString(x) + ", " + Integer.toString(y));
      // マウスが動くたびに座標を表示し直す
  }

  public void mouseClicked(MouseEvent e){
    if(e.toString().toLowerCase().lastIndexOf("panel") != -1) // パネル上のクリックであれば
      (new Thread(this)).start();
  }

  public void run(){
    Graphics g = getGraphics();  // Graphicsオブジェクトを取得

    if(clear.getState()) g.clearRect(0, 0, width, height);
      // "Clear Flag"がチェックしてあった場合クリア

         if(cb1.getState()) paintLines(g, x, y);
    else if(cb2.getState()) paintCurves(g, x, y);
    else if(cb3.getState()) paintRectangles(g, x, y);
    else if(cb4.getState()) paintSpiral(g, x, y, true);
    else if(cb5.getState()) paintSpiral(g, x, y, false);
    else if(cb6.getState()) paintHurricane(g, x, y, true);
    else                    paintHurricane(g, x, y, false);
      // それぞれの処理へ
  }

  private void paintHurricane(Graphics g, int ptX, int ptY, boolean flag){  // Hurricane & Bomb
    final int qua = Integer.parseInt(tf.getText()); // 描画数をアプレットから取得

    int [][] xpoints = new int[50][qua];
    int [][] ypoints = new int[50][qua]; // qua本描画

    randCol = (int)Math.rint(Math.random() * 0xFFFFFF);
    int dev = randCol / qua;

    Color [] col = new Color[qua];
    for(int i = 1; i < qua+1; i++)
      col[i-1] = new Color(randCol - (dev * i));

    for(int j = 0; j < qua; j++){
      double plus = 2.5;
      for(int i = 0; i < xpoints.length; i++){
        xpoints[i][j] = (int)(Math.pow(Math.E, plus) * Math.cos(plus * 2 * Math.PI + plus + j)) + ptX;
        ypoints[i][j] = (int)(Math.pow(Math.E, plus) * Math.sin(plus * 2 * Math.PI + plus + j)) + ptY;
        plus += 0.05;
      }
    } // qua本分の座標保持

    for(int i = xpoints.length - 1; i > 0; i--){
      for(int j = qua - 1; j >= 0; j--){            // 最大値から減らしていく
        g.setColor(col[j]);

        for(int k = 0; k < i; k+=5){
          g.drawLine(xpoints[i][j], ypoints[i][j]+k, xpoints[i-1][j], ypoints[i-1][j]+k);
            // i(k)の値を加えることで高さを表す（徐々に小さくなっていくように見える）
        }
      }
      try{ Thread.sleep(i); }  // 中心に行くに連れて速くなる
      catch(InterruptedException e){ e.printStackTrace(); }

      if(!flag){ // Bomb用・苦し紛れの線消し処理（背景で線の塗り潰し）
        for(int j = qua - 1; j >= 0; j--){
          g.setColor(getBackground());

          for(int k = 0; k < i; k+=5)
            g.drawLine(xpoints[i][j], ypoints[i][j]+k, xpoints[i-1][j], ypoints[i-1][j]+k);
        }
      }
    }

    if(!flag){  // Bomb用・ダメージと爆発の描画
      int [] ran = new int[(width-(width-ptY))/15];
      for(int i = 0; i < ran.length; i++)
        ran[i] = (int)Math.floor(Math.random() * (10+qua));

      for(int i = ran.length-1; i >= 0; i--){    // 最後の爆発
        g.setColor(new Color(0x00FF00));
        g.drawLine(ptX+3+ran[i], ptY+15-ran[i], ptX+3+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-3-ran[i], ptY+15-ran[i], ptX-3-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+5+ran[i], ptY+ran[i], ptX+5+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-5-ran[i], ptY+ran[i], ptX-5-ran[i], ptY-10-(i*15));

        g.setColor(new Color(0x0000FF));
        g.drawLine(ptX+7+ran[i], ptY+15-ran[i], ptX+7+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-7-ran[i], ptY+15-ran[i], ptX-7-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+9+ran[i], ptY+ran[i], ptX+9+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-9-ran[i], ptY+ran[i], ptX-9-ran[i], ptY-10-(i*15));

        g.setColor(new Color(0xFF0000));
        g.drawLine(ptX+13+ran[i], ptY+15-ran[i], ptX+13+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-13-ran[i], ptY+15-ran[i], ptX-13-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+15+ran[i], ptY+ran[i], ptX+15+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-15-ran[i], ptY+ran[i], ptX-15-ran[i], ptY-10-(i*15));

        try{ Thread.sleep(5); }
        catch(InterruptedException e){ e.printStackTrace(); }
      }

      int r = (int)Math.floor(Math.random()*150)*qua;

      g.setColor(new Color(0x000000));
      g.drawString(r + "pts damage!!", ptX-48, ptY+37);
      g.setColor(new Color(0xFFFFFF));
      g.drawString(r + "pts damage!!", ptX-50, ptY+35);

      if(r > 140*qua){
        g.setColor(new Color(0x000000));
        g.drawString("Critical Hit!!", ptX-38, ptY+52);
        g.setColor(new Color(0xFFFFFF));
        g.drawString("Critical Hit!!", ptX-40, ptY+50);
      }      // ダメージ表示

      for(int i = 0; i < ran.length; i++){    // 爆発の消去
        g.setColor(getBackground());
        g.drawLine(ptX+3+ran[i], ptY+15-ran[i], ptX+3+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-3-ran[i], ptY+15-ran[i], ptX-3-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+5+ran[i], ptY+ran[i], ptX+5+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-5-ran[i], ptY+ran[i], ptX-5-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+7+ran[i], ptY+15-ran[i], ptX+7+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-7-ran[i], ptY+15-ran[i], ptX-7-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+9+ran[i], ptY+ran[i], ptX+9+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-9-ran[i], ptY+ran[i], ptX-9-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+13+ran[i], ptY+15-ran[i], ptX+13+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-13-ran[i], ptY+15-ran[i], ptX-13-ran[i], ptY-10-(i*15));

        g.drawLine(ptX+15+ran[i], ptY+ran[i], ptX+15+ran[i], ptY-10-(i*15));
        g.drawLine(ptX-15-ran[i], ptY+ran[i], ptX-15-ran[i], ptY-10-(i*15));

        try{ Thread.sleep(5); }
        catch(InterruptedException e){ e.printStackTrace(); }
      }
    }
  }

  private void paintSpiral(Graphics g, int ptX, int ptY, boolean flag){ // Spiral & Windmill
    final int qua = Integer.parseInt(tf.getText()); // 描画数をアプレットから取得

    int [][] xpoints = new int[135][qua];
    int [][] ypoints = new int[135][qua]; // qua本描画

    Color [] col = new Color[qua];

    for(int i = 0; i < qua; i++)
      col[i] = new Color((int)Math.rint(Math.random() * 0xFFFFFF));
      // カラー情報の保持

    if(flag){ // Spiralの場合
      for(int j = 0; j < qua; j++){
        double plus = 1;
        for(int i = 0; i < xpoints.length; i++){
          xpoints[i][j] = (int)(Math.pow(Math.E, plus) * Math.cos(plus * 2 * Math.PI + plus + j)) + ptX;
          ypoints[i][j] = (int)(Math.pow(Math.E, plus) * Math.sin(plus * 2 * Math.PI + plus + j)) + ptY;
          plus += 0.03;
        }
      } // qua本分の座標保持
    }
    else{ // Windmillの場合
      for(int j = 0; j < qua; j++){
        double plus = 1;
        for(int i = 0; i < xpoints.length; i++){
          xpoints[i][j] = (int)(Math.pow(Math.E, plus) * Math.cos(plus * 2 * Math.PI + plus + j + i)) + ptX;
          ypoints[i][j] = (int)(Math.pow(Math.E, plus) * Math.sin(plus * 2 * Math.PI + plus + j + i)) + ptY;
          plus += 0.03;
        }
      } // qua本分の座標保持
    }

    for(int i = 1; i < xpoints.length; i++){
      for(int j = 0; j < qua; j++){
        g.setColor(col[j]);
        g.drawLine(xpoints[i-1][j], ypoints[i-1][j], xpoints[i][j], ypoints[i][j]);
      } // qua本一気に描画

      try{ Thread.sleep(5); }
      catch(InterruptedException ie){ }
        // 動きを付けるためのsleep
    }
  }

  private void paintRectangles(Graphics g, int ptX, int ptY){ // Targetting
    final int qua = Integer.parseInt(tf.getText()); // 描画数をアプレットから取得

    randCol = (int)Math.rint(Math.random() * 0xFFFFFF);
    g.setColor(new Color(randCol));
      // ランダムに描画色を決定

    randPt = (int)Math.rint(Math.random() * 15) + 15;
    for(int i = 0; i < qua; i++){  // qua回描画
      int size = (int)(70 * Math.cos(i * 2 * Math.PI / randPt)) + 70;
      g.draw3DRect(ptX-size, ptY-size, size*2, size*2, false);
        // 四角の大きさの変化量をランダムに決定して描画

      try{ Thread.sleep(15); }
      catch(InterruptedException ie){ }
        // 動きを付けるためのsleep
    }
  }

  private void paintCurves(Graphics g, int ptX, int ptY){    // Riber
    final int qua = Integer.parseInt(tf.getText()); // 描画数をアプレットから取得

    int [][] xpoints = new int[50][qua];  // 描画する線はqua本（変更可）
    int []   ypoints = new int[50];

    int   [] ran = new int[qua];
    Color [] col = new Color[qua];

    randPt = (int)Math.rint(Math.random() * 15) + 15;

    for(int i = 0; i < qua; i++){
      col[i] = new Color((int)Math.rint(Math.random() * 0xFFFFFF));
      ran[i] = (int)Math.rint(Math.random() * 30);
    } // それぞれ描画色と傾きを保持しておく

    for(int i = 0; i < xpoints.length; i++){
      for(int j = 0; j < qua; j++)
        xpoints[i][j] = (int)(ptX - 100 * Math.sin(i * 2 * Math.PI / randPt) + i*(ran[j]-15));
          // それぞれの線のx座標を決定・代入していく
      ypoints[i]    = ptY + i * 10;
        // y座標の決定・代入
    }

    for(int i = 1; i < xpoints.length; i++){
      for(int j = 0; j < qua; j++){
        g.setColor(col[j]);
        g.drawLine(xpoints[i-1][j], ypoints[i-1], xpoints[i][j], ypoints[i]);
      } // それぞれの線を描画していく（動きを付けるためdrawPolyLineは使わない（使っても可））

      try{ Thread.sleep(10); }
      catch(InterruptedException ie){ }
        // 動きを付けるためのsleep
    }
  }

  private void paintLines(Graphics g, int ptX, int ptY){ // Laser
    final int qua = Integer.parseInt(tf.getText()); // 描画数をアプレットから取得

    for(int i = 0; i < qua; i++){ // qua本描画
      randPt  = (int)Math.rint(Math.random() * width);
      randCol = (int)Math.rint(Math.random() * 0xFFFFFF);
        // 線の終点と描画色をランダムに決定

      g.setColor(new Color(randCol));
      g.drawLine(ptX, ptY, randPt, height);
        // 色を決定し、描画

      try{ Thread.sleep(25); }
      catch(InterruptedException ie){ }
        // 動きを付けるためのsleep
    }
  }

  public void itemStateChanged(ItemEvent e){
    if(((String)e.getItem()).equals("Laser"))           tf.setText("10"); // Laser
    else if(((String)e.getItem()).equals("Riber"))      tf.setText("5");  // Riber
    else if(((String)e.getItem()).equals("Targetting")) tf.setText("25"); // Targetting
    else                                                tf.setText("6");  // Spiral & Windmill & Hurricane & Bomb
      // 選択によって初期値を変更
  }

  public void mouseEntered (MouseEvent e){
    if(e.toString().toLowerCase().lastIndexOf("checkbox") != -1) // Checkbox上のクリックであれば
      setCursor(new Cursor(Cursor.HAND_CURSOR));                 // カーソルを指に
  }

  public void mouseExited  (MouseEvent e){
    setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); // カーソルをデフォルトに戻す
  }

  public void mouseDragged (MouseEvent e){}
  public void mouseReleased(MouseEvent e){}
  public void mousePressed (MouseEvent e){}
    // 使わないメソッドのオーバーライド
}