// wire.class　電線アプレット
// Dr.DOTIMPACT 1998/7/9

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

public class train extends Applet implements Runnable {
    // スレッド
    Thread th;

    // ダブルバッファ
    Image buf;
    Graphics bufg;

    // 画面には同時に２車両しか見えないと仮定
    int tx1, tx2, ty;
    boolean go;
    
public void init() {
    th = null;

    // ダブルバッファ準備
    buf = createImage(size().width, size().height);
    bufg = buf.getGraphics();
    blackout();

    go = false;
    tx1 = Integer.MAX_VALUE;
    tx2 = Integer.MAX_VALUE;
    ty = 100;
}
public void start() {
    if(th == null) {
	th = new Thread(this);
	th.start();
    }
}
public void stop() {
    if(th != null) {
	th.stop();
	th = null;
    }
}
public void update(Graphics g) {
    paint(g);
}
public void paint(Graphics g) {
    g.drawImage(buf, 0, 0, this);
}
public boolean mouseEnter(Event ev, int x, int y) {
    go = true;
    tx1 = -445;
    tx2 = -960;
    return true;
}
public boolean mouseExit(Event ev, int x, int y) {
    go = false;
    return true;
}
    
public void run() {
    for(;;) {
	try {
	    Thread.sleep(100);
	} catch(Exception e) {}

	if(go || tx1 != Integer.MAX_VALUE || tx2 != Integer.MAX_VALUE) {
	    tx1 = tx1 + 140;
	    tx2 = tx2 + 140;
	    draw();
	    repaint();
	}
	if(tx1 > size().width) {
	    if(go) {
		tx1 = tx2 - 445 - 60;
	    } else {
		tx1 = Integer.MAX_VALUE;
	    }
	}
	if(tx2 > size().width) {
	    if(go) {
		tx2 = tx1 - 445 - 60;
	    } else {
		tx2 = Integer.MAX_VALUE;
	    }
	}
    }
}
    
public void draw() {
    blackout();

    if(tx1 > -445 && tx1 < size().width) {
	train(tx1, ty);
    }
    if(tx2 > -445 && tx2 < size().width) {
	train(tx2, ty);
    }
}
    
    // 車両 30*2 + 95*2 + 45*3 + 10*6 = 445
    int train(int x1, int y1) {
	int x;
	x = window1(x1, 100);
	x = doorwindow(x+10, 100);
	x = window2(x+10, 100);
	x = doorwindow(x+10, 100);
	x = window2(x+10, 100);
	x = doorwindow(x+10, 100);
	x = window1(x+10, 100);
	return x1 + 445;
    }
	
    // 開閉式小窓 width = 30 height = 37
    int window1(int x, int y) {
	if(x >= -30 || x <= size().width) {
	    bufg.fillRect(x, y     , 30, 15);
	    bufg.fillRect(x, y+15+2, 30, 15);
	}
	return x + 30;
    }
    // 扉の窓 width = 45 height = 40
    int doorwindow(int x, int y) {
	if(x >= -45 || x <= size().width) {
	    bufg.fillRoundRect(x     , y, 20, 40, 6, 6);
	    bufg.fillRoundRect(x+20+5, y, 20, 40, 6, 6);
	}
	return x + 45;
    }
	
    // 窓 width = 95 height = 33
    int window2(int x, int y) {
	if(x >= -95 || x <= size().width) {
	    bufg.fillRoundRect(x     , y, 45, 33, 10, 10);
	    bufg.fillRoundRect(x+45+5, y, 45, 33, 10, 10);
	}
	return x + 95;
    }

    void blackout() {
	bufg.setColor(Color.black);
	bufg.fillRect(0,0, size().width, size().height);
	bufg.setColor(Color.white);
    }
}