GamePanel.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.util.ArrayList;
import java.util.Random;


public class GamePanel extends JLayeredPane implements MouseMotionListener {

    Image bgImage;
    Image peashooterImage;
    Image freezePeashooterImage;
    Image sunflowerImage;
    Image peaImage;
    Image freezePeaImage;
    Image cherrybombImage;
    Image normalZombieImage;
    Image coneHeadZombieImage;
    Image RunZombieImage;
    Image NutImage;
    Collider[] colliders;
    
    ArrayList<ArrayList<Zombie>> laneZombies;
    ArrayList<ArrayList<Pea>> lanePeas;
    ArrayList<Sun> activeSuns;

    Timer redrawTimer;
    Timer advancerTimer;
    Timer sunProducer;
    Timer zombieProducer;
    JLabel sunScoreboard;

    GameWindow.PlantType activePlantingBrush = GameWindow.PlantType.None;

    int mouseX , mouseY;

    private int sunScore;

    public int getSunScore() {
        return sunScore;
    }

    public void setSunScore(int sunScore) {
        this.sunScore = sunScore;
        sunScoreboard.setText(String.valueOf(sunScore)); // hiển thị bảng điểm số 
    }

    public GamePanel(JLabel sunScoreboard){
        setSize(1000,752);
        setLayout(null);
        addMouseMotionListener(this);
        this.sunScoreboard = sunScoreboard;
        setSunScore(150);  //thiết lập điểm số ban đầu

        bgImage  = new ImageIcon(this.getClass().getResource("images/mainBG(1).png")).getImage();

        peashooterImage = new ImageIcon(this.getClass().getResource("images/plants/2.gif")).getImage();
        freezePeashooterImage = new ImageIcon(this.getClass().getResource("images/plants/3.gif")).getImage();
        sunflowerImage = new ImageIcon(this.getClass().getResource("images/plants/1(1).gif")).getImage();
        peaImage = new ImageIcon(this.getClass().getResource("images/1.png")).getImage();
        freezePeaImage = new ImageIcon(this.getClass().getResource("images/2.png")).getImage();
        NutImage = new ImageIcon(this.getClass().getResource("images/plants/5.gif")).getImage();
        
        normalZombieImage = new ImageIcon(this.getClass().getResource("images/zombies/1.gif")).getImage();
        coneHeadZombieImage = new ImageIcon(this.getClass().getResource("images/zombies/2.gif")).getImage();
        RunZombieImage = new ImageIcon(this.getClass().getResource("images/zombies/5.gif")).getImage();
        
        laneZombies = new ArrayList<>();
        laneZombies.add(new ArrayList<>()); //line 1
        laneZombies.add(new ArrayList<>()); //line 2
        laneZombies.add(new ArrayList<>()); //line 3
        laneZombies.add(new ArrayList<>()); //line 4
        laneZombies.add(new ArrayList<>()); //line 5

        lanePeas = new ArrayList<>();
        lanePeas.add(new ArrayList<>()); //line 1
        lanePeas.add(new ArrayList<>()); //line 2
        lanePeas.add(new ArrayList<>()); //line 3
        lanePeas.add(new ArrayList<>()); //line 4
        lanePeas.add(new ArrayList<>()); //line 5

        colliders = new Collider[45];
        for (int i = 0; i < 45; i++) {
            Collider a = new Collider();
            a.setLocation(44 + (i%9)*100,109+(i/9)*120);
            a.setAction(new PlantActionListener((i%9),(i/9)));
            colliders[i] = a;
            add(a, Integer.valueOf(0));
        }

        //colliders[0].setPlant(new FreezePeashooter(this,0,0));
/*
        colliders[9].setPlant(new Peashooter(this,0,1));
        laneZombies.get(1).add(new NormalZombie(this,1));*/

      

        redrawTimer = new Timer(25,(ActionEvent e) -> {
            repaint(); // làm mới hình ảnh (FPS): tốc độ làm mới khung hình 
        });
        redrawTimer.start();

        advancerTimer = new Timer(60,(ActionEvent e) -> advance());
        advancerTimer.start();
        activeSuns = new ArrayList<>();
        sunProducer = new Timer(5000,(ActionEvent e) -> {
            Random rnd = new Random();
            Sun sta = new Sun(this,rnd.nextInt(800)+100,0,rnd.nextInt(300)+200);
            activeSuns.add(sta);
            add(sta, Integer.valueOf(1));
        });
        sunProducer.start();

        zombieProducer = new Timer(7000,(ActionEvent e) -> {
            Random rnd = new Random();
            LevelData lvl = new LevelData();
            String [] Level = lvl.Level[Integer.parseInt(lvl.Lvl)-1];
            int [][] LevelValue = lvl.LevelValue[Integer.parseInt(lvl.Lvl)-1];
            int l = rnd.nextInt(5);
            int t = rnd.nextInt(100);
            Zombie z = null;
            for(int i = 0;i<LevelValue.length;i++) {
                if(t>=LevelValue[i][0]&&t<=LevelValue[i][1]) {
                    z = Zombie.getZombie(Level[i],GamePanel.this,l);
                }
            }
            laneZombies.get(l).add(z);
        });
        zombieProducer.start();

    }

    private void advance(){
        for (int i = 0; i < 5 ; i++) {
            for(Zombie z : laneZombies.get(i)){ // trả danh sách zombie trong làn i 
                z.advance();
            }

            for (int j = 0; j < lanePeas.get(i).size(); j++) { // trả ra các hạt pea bắn zombie 
                Pea p = lanePeas.get(i).get(j);
                p.advance();
            }

        }

        for (int i = 0; i < activeSuns.size() ; i++) {
            activeSuns.get(i).advance();
        }

    }
   
   

   

    

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        g.drawImage(bgImage,0,0,null);

        //Draw Plants
        for (int i = 0; i < 45; i++) {
            Collider c = colliders[i];
            if(c.assignedPlant != null){
                Plant p = c.assignedPlant;
                if(p instanceof Peashooter){
                    g.drawImage(peashooterImage,20 + (i%9)*100,80 + (i/9)*120,null);// tọa độ để vẽ cây bắn bth
                }
                if(p instanceof FreezePeashooter){
                    g.drawImage(freezePeashooterImage,20 + (i%9)*100,80 + (i/9)*120,null);// tọa độ vẽ cây bắn frezze
                }
                if(p instanceof Sunflower){
                    g.drawImage(sunflowerImage,15 + (i%9)*100,70 + (i/9)*120,null); // tọa độ vẽ bông mặt trời                
                }
                if(p instanceof Nut){
                    g.drawImage(NutImage,20 + (i%9)*100,80 + (i/9)*120,null );
                }
                

            }
        }

        for (int i = 0; i < 5 ; i++) {
            for(Zombie z : laneZombies.get(i)){ // trả danh sách zombie trên làn i 
                if(z instanceof NormalZombie){
                    g.drawImage(normalZombieImage,z.posX,125+(i*120),null); // tọa độ vẽ normal zombie 
                }else if(z instanceof ConeHeadZombie){
                    g.drawImage(coneHeadZombieImage,z.posX,85+(i*120),null); // tọa độ vẽ coneheadzombie
                }else{
                    g.drawImage(RunZombieImage, z.posX, 90+(i*120), null);
                }
            }

            for (int j = 0; j < lanePeas.get(i).size(); j++) {
                Pea p = lanePeas.get(i).get(j);
                if(p instanceof FreezePea){
                    g.drawImage(freezePeaImage, p.posX, 130 + (i * 120), null);
                }else {
                    g.drawImage(peaImage, p.posX, 130 + (i * 120), null);
                }
            }

        }

        //if(!"".equals(activePlantingBrush)){
            //System.out.println(activePlantingBrush);
            /*if(activePlantingBrush == GameWindow.PlantType.Sunflower) {
                g.drawImage(sunflowerImage,mouseX,mouseY,null);
            }*/

        //}


    }

    class PlantActionListener implements ActionListener { // thực hiện hành động trồng cây 

        int x,y;

        public PlantActionListener(int x, int y){
            this.x = x;
            this.y = y;
        }

        @Override
        public void actionPerformed(ActionEvent e) {
            if(activePlantingBrush == GameWindow.PlantType.Sunflower){
                if(getSunScore()>=50) {
                    colliders[x + y * 9].setPlant(new Sunflower(GamePanel.this, x, y));
                    setSunScore(getSunScore()-50);
                }
            }
            if(activePlantingBrush == GameWindow.PlantType.Peashooter){
                if(getSunScore() >= 100) {
                    colliders[x + y * 9].setPlant(new Peashooter(GamePanel.this, x, y));
                    setSunScore(getSunScore()-100);
                }
            }// đoạn mã đảm bảo người chơi chọn cây trồng đủ tiền để trồng 

            if(activePlantingBrush == GameWindow.PlantType.FreezePeashooter){
                if(getSunScore() >= 175) {
                    colliders[x + y * 9].setPlant(new FreezePeashooter(GamePanel.this, x, y));
                    setSunScore(getSunScore()-175);
                }
            }
            if(activePlantingBrush == GameWindow.PlantType.Nut){
                if(getSunScore() >= 75) {
                    colliders[x + y * 9].setPlant(new Nut(GamePanel.this, x, y));
                    setSunScore(getSunScore()-75);
                }
            }
            
            activePlantingBrush = GameWindow.PlantType.None; // về trạng thái không có loại cây nào được chồng
        }
    }

    @Override
    public void mouseDragged(MouseEvent e) {

    }

    @Override
    public void mouseMoved(MouseEvent e) { // cập nhật vị trí chuột trên giao diện
        mouseX = e.getX();
        mouseY = e.getY();
    }
    static int progress = 0;
    public static void setProgress(int num) { // điều kiện để kết thúc game 
        progress = progress + num;
        System.out.println(progress);
        if(progress>=150) {
           if("1".equals(LevelData.Lvl)) {
            JOptionPane.showMessageDialog(null,"Level Completed !!!" + '\n' + "Starting next Level");
            GameWindow.gw.dispose();
            LevelData.write("2");
            GameWindow.gw = new GameWindow();
            }  else {
               JOptionPane.showMessageDialog(null,"Level Completed !!!" + '\n' + "More Levels will come soon !!!" + '\n' + "Resetting data");
               LevelData.write("1");
               System.exit(0);
           }
           progress = 0;
        }
    }
}