import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Menu;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JProgressBar;
import javax.swing.JWindow;


public class Carprotected extends JWindow{

	public static void main(String[] args) {
		new Loadframe();
	}
}
//加載頁面
class Loadframe extends JWindow implements Runnable
{
	JProgressBar jprogress=null;
	Image flashimg=null;
	int i=0;
	public Loadframe()
	{
		jprogress=new JProgressBar(JProgressBar.HORIZONTAL,1,300);//初始化進度條
		Toolkit tk=Toolkit.getDefaultToolkit();
		flashimg=tk.createImage("Cg0430.jpg");
		this.add(new JLabel(new ImageIcon(flashimg)),BorderLayout.CENTER);
		this.setSize(400,300);
		//this.pack();
		jprogress.setString("now loading....");
		jprogress.setStringPainted(true);
		jprogress.setForeground(Color.gray);
		jprogress.setBackground(Color.GREEN);
		this.add(jprogress,BorderLayout.SOUTH);
		this.setLocation((1024-400)/2,(768-300)/2);
		this.setVisible(true);
		new Thread(this).start();		
	}
	public void run() {
		while(i<=300)
		{
			try {
				Thread.sleep(8);
			} catch (InterruptedException e) {
				// TODO 自動生成 catch 塊
				e.printStackTrace();
			}
			jprogress.setValue(i);
			i++;
		}
		this.dispose();
		new Menudemo();
	}
}
//菜單頁面
class Menudemo extends JFrame implements KeyListener,Runnable
{
	int gamestate=0;//0:菜單;1:主場景;2:關于游戲
	String s1[]={"開始游戲","關于游戲","游戲幫助","退出游戲"};
	int y=80;
	int y1=70;
	int num = 200;
	BufferedImage bg=null;
	Graphics g1=null;
	Image imgred=null;
	Image imgblue=null;
	Image imggreen=null;
	Image imgS = null;
	Image eximg[] = new Image[8];
	Boom ex = new Boom(eximg,this);
	Car redcar=null;
	Car enemy[];
	boolean isE;
	boolean isR = true;
	int index=0;
	int road=-100;
	int ly[]={-500,-200,-600,-100,-550,-650,-700,-200,-500};
	public Menudemo()
	{
		MediaTracker mt= new MediaTracker(this);
		bg=new BufferedImage(250,300,BufferedImage.TYPE_INT_RGB);
		g1=bg.getGraphics();
		Toolkit t1=Toolkit.getDefaultToolkit();
		imgred=t1.createImage("Red_Car.gif");
		imgblue=t1.createImage("Blue_Car.gif");
		imggreen=t1.createImage("Green_Car.gif");
		imgS = t1.createImage("stop.gif");
		mt.addImage(imgS, 0);
		mt.addImage(imgred, 0);
		mt.addImage(imggreen, 0);
		mt.addImage(imgblue, 0);
		for(int i = 0; i < eximg.length; i++)
		{
			eximg[i] = t1.createImage("z"+(i+1)+".png");
			mt.addImage(eximg[i],0);
		}
		try {
			mt.waitForAll();
		} catch (InterruptedException e) {
			// TODO 自動生成 catch 塊
			e.printStackTrace();
		}
		redcar=new Car(100,250,imgred,this);
		enemy=new Car[6];
		for(int i=0;i<3;i++)
		{
			enemy[i]=new Car(i*60,ly[i],imgblue);
			enemy[i+3]=new Car(i*40,ly[i+3],imggreen);
		}
		this.setSize(250,300);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setLocation((1024-250)/2,(768-300)/2);
		new Thread(this).start();
		this.addKeyListener(this);
		this.setVisible(true);
	}
	public void paint(Graphics g)
	{
		g1.clearRect(0,0,250,300);
		if(gamestate==0)//菜單
		{
			drawMenu(g1);
		}
		else if(gamestate==1)
		{
			drawMain(g1);
		}
		else if(gamestate==2)
		{
			drawAbout(g1);
		}
		else if(gamestate==3)
		{
			drawHelp(g1);
		}
		g.drawImage(bg,0,0,this);
	}
	//繪制菜單
	public void drawMenu(Graphics g)
	{
		g.setColor(Color.RED);
		g.setFont(new Font("幼圓",Font.BOLD,20));
		y=80;
		for(int i=0;i<s1.length;i++)
		{
			g.drawString(s1[i],80,y);
			y+=50;
		}
		g.setColor(Color.orange);
		g.fillOval(55,y1,15,15);		
	}
	//繪主場景
	public void drawMain(Graphics g)
	{
		
		for(int i=0;i<enemy.length;i++)
		{
			enemy[i].setDir(2);
			enemy[i].drawCar(g);
			enemy[i].move();
			if(enemy[i].y>300)
				this.setEnemy(i);
			if(enemy[i].isP(redcar))
			{
				int tmp1 = enemy[i].x;
				int tmp2 = enemy[i].y;
				ex.setLoc(tmp1, tmp2);
				ex.setE(true);
				ex.start1();
				enemy[i].setLocation(-500,-100);
				num-=20;
				if(num <= 0)
				{
					num = 0;
					isE = false;
					isR = false;	
				}
			}
		}
		if(ex.getE())
			ex.drawE(g1);
		
		redcar.drawCar(g);
		this.drawRoad(g);
		if(isR==false)
		{
			g.drawImage(imgS, (250-imgS.getWidth(null))/2,(300-imgS.getHeight(null))/2,this);
		}
	}
	public void setEnemy(int en)
	{
		int x=(int)(Math.random()*212);
		int y=0;
		if(en>0)
			y=(int)(Math.random()*(-500)+enemy[en-1].y+(-200));
		else if(en==0)
			y=(int)(Math.random()*(-500)+enemy[5].y+(-200));
		enemy[en].setLocation(x,y);
	}
	//繪制關于界面
	public void drawAbout(Graphics g)
	{
		g.setColor(Color.WHITE);
		g.drawString("關于游戲",30,50);
	}
	//繪制幫助界面
	public void drawHelp(Graphics g)
	{
		g.setFont(new Font("宋體",Font.BOLD,10));
		g.setColor(Color.YELLOW);
		g.drawString("游戲幫助",10,50);
	}
	public void keyTyped(KeyEvent e) {		
	}
	public void keyPressed(KeyEvent e) {
		int key=e.getKeyCode();
		//主菜單
		if(gamestate==0)
		{
			switch(key)
			{
				case KeyEvent.VK_UP:
					y1-=50;
					if(y1<70)
						y1=220;
					break;
				case KeyEvent.VK_DOWN:
					y1+=50;
					if(y1>=270)
						y1=70;
					break;
				case KeyEvent.VK_ENTER:
					if(y1==70)
						gamestate=1;
					if(y1==120)
						gamestate=2;
					if(y1==170)
						gamestate=3;
					if(y1==220)
						System.exit(0);
					break;
			}		
			repaint();
		}//游戲界面
		else if(gamestate==1)
		{
			if(key==KeyEvent.VK_ENTER)
				gamestate=0;
			if(key==KeyEvent.VK_LEFT)
				redcar.setDir(0);
			if(key==KeyEvent.VK_RIGHT)
				redcar.setDir(1);
			redcar.move();
		}//關于界面
		else if(gamestate==2)
		{
			if(key==KeyEvent.VK_ENTER)
				gamestate=0;
			repaint();
		}
		//幫助界面
		else if(gamestate==3)
		{
			if(key==KeyEvent.VK_ENTER)
				gamestate=0;
			repaint();
		}			
	}
	public void keyReleased(KeyEvent e) 
	{	
	}
	public void drawRoad(Graphics g)
	{
		g.setColor(Color.WHITE);
		g.fillRect(120,road,10,60);
		g.setColor(Color.blue);
		g.drawRect(30,40,201,10);
		g.setColor(Color.red);
		g.fillRect(31,41,num,9);
	}
	public void run() 
	{
		while(isR)
		{
			road+=60;
			if(gamestate==1)
			{
				try {
					Thread.sleep(50);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
			repaint();
			if(road>=350)
				road=-100;
		}
	}
	
	//汽車類
	class Car 
	{
		int x;
		int y;
		Menudemo game;
		Image img;
		int dir=0;
		public Car(int x,int y,Image img,Menudemo game)
		{
			this.x=x;
			this.y=y;
			this.img=img;
			this.game=game;
		}
		public Car(int x,int y,Image img)
		{
			this.x=x;
			this.y=y;
			this.img=img;
		}
		public void setLocation(int x,int y)
		{
			this.x=x;
			this.y=y;
		}
		public void drawCar(Graphics g)
		{
			g.drawImage(img,x,y,game);
		}
		public void setDir(int dir)
		{
			this.dir=dir;
		}
		public void move()
		{
			switch(dir)
			{
				case 0:
					x-=8;
					if(x<=0)
						x=0;
					break;
				case 1:
					x+=8;
						if(x>=210)
					x=210;
					break;
				case 2:
					y+=12;
					break;
			}
		}
		public Rectangle2D getR()
		{
			return new Rectangle2D.Float(x,y,img.getWidth(game),img.getHeight(game));
		}
		public boolean isP(Car c)
		{
			return getR().intersects(c.getR());
		}
	}
	class Boom implements Runnable
	{
		Menudemo game;
		Image img[];
		int x; 
		int y;
		boolean isE;
		
		public Boom(Image img[], Menudemo game)
		{
			this.img = img;
			this.game = game;
		}
		public void setLoc(int x, int y)
		{
			this.x = x;
			this.y = y;
		}
		public void setE(boolean isE)
		{
			this.isE = isE;
		}
		public boolean getE()
		{
			return isE;
		}
		public void start1()
		{
			new Thread(this).start();
		}
		public void run() 
		{
			while(isE)
			{
				try {
					Thread.sleep(50);
				} catch (InterruptedException e) {
					// TODO 自動生成 catch 塊
					e.printStackTrace();
				}
				index++;
				if(index > 6)
				{
					index = 0;
					isE = false;
				}
			}
		}
		public void drawE(Graphics g)
		{
			g.drawImage(img[index],x,y,game);
		}
	}
}