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PanelGame.java
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package game.component;
import game.obj.Bullet;
import game.obj.Effect;
import game.obj.Player;
import game.obj.Rocket;
import game.obj.sound.Sound;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.geom.Area;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.swing.JComponent;
public class PanelGame extends JComponent {
private Graphics2D g2;
private BufferedImage image;
private int width;
private int height;
private Thread thread;
private boolean start = true;
private Key key;
private int shotTime;
// Game FPS
private final int FPS = 60;
private final int TARGET_TIME = 1000000000 / FPS;
// Game Object
private Sound sound;
private Player player;
private List<Bullet> bullets;
private List<Rocket> rockets;
private List<Effect> boomEffects;
private int score = 0;
public void start() {
width = getWidth();
height = getHeight();
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
g2 = image.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
thread = new Thread(new Runnable() {
@Override
public void run() {
while (start) {
long startTime = System.nanoTime();
drawBackground();
drawGame();
render();
long time = System.nanoTime() - startTime;
if (time < TARGET_TIME) {
long sleep = (TARGET_TIME - time) / 1000000;
sleep(sleep);
}
}
}
});
initObjectGame();
initKeyboard();
initBullets();
thread.start();
}
private void addRocket() {
Random ran = new Random();
int locationY = ran.nextInt(height - 50) + 25;
Rocket rocket = new Rocket();
rocket.changeLocation(0, locationY);
rocket.changeAngle(0);
rockets.add(rocket);
int locationY2 = ran.nextInt(height - 50) + 25;
Rocket rocket2 = new Rocket();
rocket2.changeLocation(width, locationY2);
rocket2.changeAngle(180);
rockets.add(rocket2);
}
private void initObjectGame() {
sound = new Sound();
player = new Player();
player.changeLocation(150, 150);
rockets = new ArrayList<>();
boomEffects = new ArrayList<>();
new Thread(new Runnable() {
@Override
public void run() {
while (start) {
addRocket();
sleep(3000);
}
}
}).start();
}
private void resetGame() {
score = 0;
rockets.clear();
bullets.clear();
player.changeLocation(150, 150);
player.reset();
}
private void initKeyboard() {
key = new Key();
requestFocus();
addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_A) {
key.setKey_left(true);
} else if (e.getKeyCode() == KeyEvent.VK_D) {
key.setKey_right(true);
} else if (e.getKeyCode() == KeyEvent.VK_SPACE) {
key.setKey_space(true);
} else if (e.getKeyCode() == KeyEvent.VK_J) {
key.setKey_j(true);
} else if (e.getKeyCode() == KeyEvent.VK_K) {
key.setKey_k(true);
} else if (e.getKeyCode() == KeyEvent.VK_ENTER) {
key.setKey_enter(true);
}
}
@Override
public void keyReleased(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_A) {
key.setKey_left(false);
} else if (e.getKeyCode() == KeyEvent.VK_D) {
key.setKey_right(false);
} else if (e.getKeyCode() == KeyEvent.VK_SPACE) {
key.setKey_space(false);
} else if (e.getKeyCode() == KeyEvent.VK_J) {
key.setKey_j(false);
} else if (e.getKeyCode() == KeyEvent.VK_K) {
key.setKey_k(false);
} else if (e.getKeyCode() == KeyEvent.VK_ENTER) {
key.setKey_enter(false);
}
}
});
new Thread(new Runnable() {
@Override
public void run() {
float s = 0.5f;
while (start) {
if (player.isAlive()) {
float angle = player.getAngle();
if (key.isKey_left()) {
angle -= s;
}
if (key.isKey_right()) {
angle += s;
}
if (key.isKey_j() || key.isKey_k()) {
if (shotTime == 0) {
if (key.isKey_j()) {
bullets.add(0, new Bullet(player.getX(), player.getY(), player.getAngle(), 5, 3f));
} else {
bullets.add(0, new Bullet(player.getX(), player.getY(), player.getAngle(), 20, 3f));
}
sound.soundShoot();
}
shotTime++;
if (shotTime == 15) {
shotTime = 0;
}
} else {
shotTime = 0;
}
if (key.isKey_space()) {
player.speedUp();
} else {
player.speedDown();
}
player.update();
player.changeAngle(angle);
} else {
if (key.isKey_enter()) {
resetGame();
}
}
for (int i = 0; i < rockets.size(); i++) {
Rocket rocket = rockets.get(i);
if (rocket != null) {
rocket.update();
if (!rocket.check(width, height)) {
rockets.remove(rocket);
} else {
if (player.isAlive()) {
checkPlayer(rocket);
}
}
}
}
sleep(5);
}
}
}).start();
}
private void initBullets() {
bullets = new ArrayList<>();
new Thread(new Runnable() {
@Override
public void run() {
while (start) {
for (int i = 0; i < bullets.size(); i++) {
Bullet bullet = bullets.get(i);
if (bullet != null) {
bullet.update();
checkBullets(bullet);
if (!bullet.check(width, height)) {
bullets.remove(bullet);
}
} else {
bullets.remove(bullet);
}
}
for (int i = 0; i < boomEffects.size(); i++) {
Effect boomEffect = boomEffects.get(i);
if (boomEffect != null) {
boomEffect.update();
if (!boomEffect.check()) {
boomEffects.remove(boomEffect);
}
} else {
boomEffects.remove(boomEffect);
}
}
sleep(1);
}
}
}).start();
}
private void checkBullets(Bullet bullet) {
for (int i = 0; i < rockets.size(); i++) {
Rocket rocket = rockets.get(i);
if (rocket != null) {
Area area = new Area(bullet.getShape());
area.intersect(rocket.getShape());
if (!area.isEmpty()) {
boomEffects.add(new Effect(bullet.getCenterX(), bullet.getCenterY(), 3, 5, 60, 0.5f, new Color(230, 207, 105)));
if (!rocket.updateHP(bullet.getSize())) {
score++;
rockets.remove(rocket);
sound.soundDestroy();
double x = rocket.getX() + Rocket.ROCKET_SIZE / 2;
double y = rocket.getY() + Rocket.ROCKET_SIZE / 2;
boomEffects.add(new Effect(x, y, 5, 5, 75, 0.05f, new Color(32, 178, 169)));
boomEffects.add(new Effect(x, y, 5, 5, 75, 0.1f, new Color(32, 178, 169)));
boomEffects.add(new Effect(x, y, 10, 10, 100, 0.3f, new Color(230, 207, 105)));
boomEffects.add(new Effect(x, y, 10, 5, 100, 0.5f, new Color(255, 70, 70)));
boomEffects.add(new Effect(x, y, 10, 5, 150, 0.2f, new Color(255, 255, 255)));
} else {
sound.soundHit();
}
bullets.remove(bullet);
}
}
}
}
private void checkPlayer(Rocket rocket) {
if (rocket != null) {
Area area = new Area(player.getShape());
area.intersect(rocket.getShape());
if (!area.isEmpty()) {
double rocketHp = rocket.getHP();
if (!rocket.updateHP(player.getHP())) {
rockets.remove(rocket);
sound.soundDestroy();
double x = rocket.getX() + Rocket.ROCKET_SIZE / 2;
double y = rocket.getY() + Rocket.ROCKET_SIZE / 2;
boomEffects.add(new Effect(x, y, 5, 5, 75, 0.05f, new Color(32, 178, 169)));
boomEffects.add(new Effect(x, y, 5, 5, 75, 0.1f, new Color(32, 178, 169)));
boomEffects.add(new Effect(x, y, 10, 10, 100, 0.3f, new Color(230, 207, 105)));
boomEffects.add(new Effect(x, y, 10, 5, 100, 0.5f, new Color(255, 70, 70)));
boomEffects.add(new Effect(x, y, 10, 5, 150, 0.2f, new Color(255, 255, 255)));
}
if (!player.updateHP(rocketHp)) {
player.setAlive(false);
sound.soundDestroy();
double x = player.getX() + Player.PLAYER_SIZE / 2;
double y = player.getY() + Player.PLAYER_SIZE / 2;
boomEffects.add(new Effect(x, y, 5, 5, 75, 0.05f, new Color(32, 178, 169)));
boomEffects.add(new Effect(x, y, 5, 5, 75, 0.1f, new Color(32, 178, 169)));
boomEffects.add(new Effect(x, y, 10, 10, 100, 0.3f, new Color(230, 207, 105)));
boomEffects.add(new Effect(x, y, 10, 5, 100, 0.5f, new Color(255, 70, 70)));
boomEffects.add(new Effect(x, y, 10, 5, 150, 0.2f, new Color(255, 255, 255)));
}
}
}
}
private void drawBackground() {
g2.setColor(new Color(30, 30, 30));
g2.fillRect(0, 0, width, height);
}
private void drawGame() {
if (player.isAlive()) {
player.draw(g2);
}
for (int i = 0; i < bullets.size(); i++) {
Bullet bullet = bullets.get(i);
if (bullet != null) {
bullet.draw(g2);
}
}
for (int i = 0; i < rockets.size(); i++) {
Rocket rocket = rockets.get(i);
if (rocket != null) {
rocket.draw(g2);
}
}
for (int i = 0; i < boomEffects.size(); i++) {
Effect boomEffect = boomEffects.get(i);
if (boomEffect != null) {
boomEffect.draw(g2);
}
}
g2.setColor(Color.WHITE);
g2.setFont(getFont().deriveFont(Font.BOLD, 15f));
g2.drawString("Score : " + score, 10, 20);
if (!player.isAlive()) {
String text = "GAME OVER";
String textKey = "Press key enter to Continue ...";
g2.setFont(getFont().deriveFont(Font.BOLD, 50f));
FontMetrics fm = g2.getFontMetrics();
Rectangle2D r2 = fm.getStringBounds(text, g2);
double textWidth = r2.getWidth();
double textHeight = r2.getHeight();
double x = (width - textWidth) / 2;
double y = (height - textHeight) / 2;
g2.drawString(text, (int) x, (int) y + fm.getAscent());
g2.setFont(getFont().deriveFont(Font.BOLD, 15f));
fm = g2.getFontMetrics();
r2 = fm.getStringBounds(textKey, g2);
textWidth = r2.getWidth();
textHeight = r2.getHeight();
x = (width - textWidth) / 2;
y = (height - textHeight) / 2;
g2.drawString(textKey, (int) x, (int) y + fm.getAscent() + 50);
}
}
private void render() {
Graphics g = getGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
}
private void sleep(long speed) {
try {
Thread.sleep(speed);
} catch (InterruptedException ex) {
System.err.println(ex);
}
}
}