Pong

/** ini dalah Main Class. Berfungsi mengendalikan objek yang telah dibuat.
 * Seperti paddle, bola, bot, pengaturan skor, warna UI yang ceria,
 * UI saat game, membaca respon key yang digunakan. Have fun kamu
 *
 * Author thomasdwi.a
 * Version 20201210
 */

package pong;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;

public class Pong implements ActionListener, KeyListener{

    public static Pong pong;
    public int lebar =  1280, panjang = 720 ; //lebar-panjang panel
    public Renderer renderer;
    public Paddle player1, player2;
    public Ball ball;
    public boolean bot = false, selectingDifficulty;
    public boolean w, s, up, down;
    public int gameStatus = 0, scoreLimit = 3, playerWon; //0 = Menu, 1 = Paused, 2 = Playing, 3 = Over
    public int botDifficulty, botMoves, botCooldown = 0;
    public Random random;
    public JFrame jframe;

    /**
     * contructor
     */
    public Pong(){
        Timer timer = new Timer(20,this);
        random = new Random();
        jframe = new JFrame("PONG PING");
        renderer = new Renderer();

        jframe.setSize(lebar + 15, panjang + 35);
        jframe.setVisible(true);
        jframe.setDefaultCloseOperation(jframe.EXIT_ON_CLOSE);
        jframe.add(renderer);
        jframe.addKeyListener(this);

        timer.start();
        }

    /**
     * constructor saat mau mulai main
     */
    public void start(){
        gameStatus =2;
        player1 = new Paddle(this, 1);
        player2 = new Paddle(this, 2);
        ball = new Ball(this);
    }


    public void update(){
        //cek skor setiap pemain
        if (player1.score >= scoreLimit){
            playerWon =1;
            gameStatus = 3;
        }

        if(player2.score >= scoreLimit){
            playerWon = 2;
            gameStatus = 3;
        }

        //pergerakan paddle1
        if(w) player1.move(true);
        if(s) player1.move(false);


        if(!bot){
            //membaca pergerakan padlle2
            if(up) player2.move(true);
            if(down) player2.move(false);

        } else {

            if(botCooldown > 0){
                botCooldown--;
                if (botCooldown == 0) botMoves=0;
            }

            if(botMoves <10){
                if(player2.y + player2.panjang/2 < ball.y){
                    player2.move(false);
                    botMoves++;
                }
                if(player2.y + player2.panjang/2 > ball.y){
                    player2.move(true);
                    botMoves++;
                }

                if(botDifficulty == 0) botCooldown = 25;
                if(botDifficulty == 1) botCooldown = 15;
                if(botDifficulty == 2) botCooldown = 8;
            }
        }
        ball.update(player1,player2);
    }

    /**
     * method yang membuat UI
     * @param g
     */
    public void render(Graphics2D g){

        //untuk background
        g.setColor(Color.BLACK);
        g.fillRect(0,0, lebar, panjang);
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

        //tampilan menu
        if(gameStatus ==0){
            g.setColor(Color.MAGENTA);
            g.setFont(new Font("Arial", 1, 75));
            g.drawString("PONG PING",lebar/2 - 230, 200);

            if(!selectingDifficulty){
                g.setColor(Color.PINK);
                g.setFont(new Font("Arial", 1, 30));
                g.drawString("TEKAN SPACE UNTUK BERMAIN/PAUSE", lebar/2 - 320, panjang/2 - 25);
                g.drawString("TEKAN SHIFT UNTUK BERMAIN DENGAN BOT", lebar/2 - 360, panjang/2 + 25);
                g.drawString("<< SCORE LIMIT: " + scoreLimit + " >>",lebar/2-176, panjang/2 + 75);
            }
        }
        if(selectingDifficulty){
            g.setColor(Color.ORANGE);
            String string = botDifficulty == 0 ? "EZ" : (botDifficulty == 1 ? "MEDIUM" : "SUSAH NJIR");

            g.setFont(new Font("Arial", 1, 30));
            if(botDifficulty == 0 )
                g.drawString("<< BOT DIFFICULTY: " + string + " >>",lebar/2 - 219, panjang/2 - 25);
            else if(botDifficulty == 1)
                g.drawString("<< BOT DIFFICULTY: " + string + " >>",lebar/2 - 257, panjang/2 - 25);
            else if(botDifficulty == 2)
                g.drawString("<< BOT DIFFICULTY: " + string + " >>",lebar/2 - 294, panjang/2 - 25);
            g.drawString("PRESS SPACE TO PLAY/PAUSE", lebar/2 - 260 , panjang/2 + 25);
        }

        //membuat arena permainan
        if(gameStatus == 1 || gameStatus == 2){
            g.setColor(Color.GREEN);

            g.setStroke(new BasicStroke(5f));
            g.drawLine(lebar/2, 0,lebar/2,panjang);

            g.setStroke(new BasicStroke(2f));
            g.drawOval(lebar/2 -125, panjang /2-120, 250,250);

            //untuk skor
            g.setFont(new Font("Arial", 1, 50));
            g.drawString(String.valueOf(player1.score), lebar/2 - 90, 100);
            g.drawString(String.valueOf(player2.score), lebar/2 + 65, 100);

            player1.render(g);
            player2.render(g);
            ball.render(g);
        }

        // ketika game di pause
        if(gameStatus == 1){
            g.setColor(Color.RED);
            g.setFont(new Font("Arial", 1, 50));
            g.drawString("PAUSE", lebar/2 - 89, panjang/2+20);
        }

        //maka ini saat menang
        if(gameStatus ==3){
            g.setColor(Color.MAGENTA);
            g.setFont(new Font("Arial", 1, 75));
            g.drawString("PONG PING",lebar/2 - 230, 200);

            if(bot && playerWon == 2) g.drawString("BOT MENANG!", lebar/2-283, 300);
            else g.drawString("PLAYER " + playerWon + " MENANG!", lebar/2-390, 330);

            g.setColor(Color.CYAN);
            g.setFont(new Font("Arial", 1, 30));
            g.drawString("TEKAN SPACE UNTUK BERMAIN", lebar/2 - 260, panjang/2 + 100);
            g.drawString("TEKAN SHIFT UNTUK BERMAIN DENGAN BOT", lebar/2 - 360, panjang/2 + 150);
        }
    }

    @Override
    public void actionPerformed(ActionEvent e){
        if(gameStatus ==2) update();
        renderer.repaint();
    }

    public static void main(String [] args){
        pong = new Pong();
    }

    @Override
    public void keyPressed(KeyEvent e){
        int id = e.getKeyCode();

        if(id == KeyEvent.VK_W) w = true;
        else if(id == KeyEvent.VK_S) s = true;
        else if(id == KeyEvent.VK_UP) up = true;
        else if(id == KeyEvent.VK_DOWN) down = true;
        else if(id == KeyEvent.VK_RIGHT){
            if(selectingDifficulty){
                if(botDifficulty < 2) botDifficulty++;
                else botDifficulty = 0;

            } else if(gameStatus ==0) scoreLimit ++;
        }
        else if(id == KeyEvent.VK_LEFT){
            if (selectingDifficulty) {
                if(botDifficulty > 0) botDifficulty --;
                else  botDifficulty = 2;
            }
            else if ( gameStatus == 0 && scoreLimit>1) scoreLimit--;
        }
        else if(id == KeyEvent.VK_ESCAPE
                && (gameStatus == 2 || gameStatus == 3)) gameStatus = 0;
        else if (id == KeyEvent.VK_SHIFT && gameStatus == 0){
            bot = true;
            selectingDifficulty = true;
        }
        else if (id == KeyEvent.VK_SPACE){
            if(gameStatus == 0 || gameStatus == 3){
                if(!selectingDifficulty) bot = false;
                else  selectingDifficulty = false;

                start();
            }
            else if(gameStatus == 1) gameStatus =2;
            else if(gameStatus == 2) gameStatus =1;
        }
    }

    @Override
    public void keyReleased (KeyEvent e){
        int id = e.getKeyCode();

        if(id == KeyEvent.VK_W) w =false;
        else if (id == KeyEvent.VK_S) s = false;
        else if (id == KeyEvent.VK_UP) up = false;
        else if (id == KeyEvent.VK_DOWN) down = false;
    }

    @Override
    public void keyTyped (KeyEvent e){}
}