finish big refactorings

This commit is contained in:
Jan-Niclas Loosen 2024-11-27 22:46:25 +01:00
parent 8b0cdf6963
commit 4df15dc254
7 changed files with 630 additions and 560 deletions

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@ -5,6 +5,8 @@ package com.example.flappybird; /**
* @author Paul Krishnamurthy * @author Paul Krishnamurthy
*/ */
import com.example.flappybird.states.GameState;
import java.awt.*; import java.awt.*;
import java.awt.geom.AffineTransform; import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage; import java.awt.image.BufferedImage;
@ -127,7 +129,7 @@ public class Bird extends HasPosition {
} else { } else {
// Play audio and set state to dead // Play audio and set state to dead
GamePanel.audio.hit(); GameState.audio.hit();
isAlive = false; isAlive = false;
} }

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@ -41,19 +41,14 @@ public class FlappyBird extends JFrame implements ActionListener {
} }
public void actionPerformed (ActionEvent e) { public void actionPerformed (ActionEvent e) {
if (game != null && game.ready) { if (game != null && game.ready) {
game.repaint(); game.repaint();
} }
} }
public static void main(String[] args) { public static void main(String[] args) {
FlappyBird game = new FlappyBird(); FlappyBird game = new FlappyBird();
} }
} }

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@ -5,6 +5,9 @@ package com.example.flappybird; /**
* @author Paul Krishnamurthy * @author Paul Krishnamurthy
*/ */
import com.example.flappybird.states.GameState;
import com.example.flappybird.states.MenuState;
import java.awt.*; import java.awt.*;
import java.awt.event.*; import java.awt.event.*;
import javax.swing.*; import javax.swing.*;
@ -19,77 +22,30 @@ import java.awt.image.BufferedImage;
import java.util.Calendar; import java.util.Calendar;
public class GamePanel extends JPanel implements KeyListener, MouseListener { public class GamePanel extends JPanel implements KeyListener, MouseListener {
private Random rand;
private Calendar cal;
////////////////////
// Game variables //
////////////////////
// Fonts
private Font flappyFontBase,
flappyFontReal,
flappyScoreFont,
flappyMiniFont = null;
// Textures // Textures
public static HashMap<String, Texture> textures = new Sprites().getGameTextures(); private GameState gameState;
// Moving base effect
private static int baseSpeed = 2;
private static int[] baseCoords = { 0, 435 };
// Game states
final static int MENU = 0;
final static int GAME = 1;
private int gameState = MENU;
private int score; // Player score
private int pipeDistTracker; // Distance between pipes
public boolean ready = false; // If game has loaded public boolean ready = false; // If game has loaded
private boolean inStartGameState = false; // To show instructions scren
private Point clickedPoint = new Point(-1, -1); // Store point when player clicks
private boolean scoreWasGreater; // If score was greater than previous highscore
private boolean darkTheme; // Boolean to show dark or light screen
private String randomBird; // Random bird color
private String medal; // Medal to be awarded after each game
public ArrayList<Pipe> pipes; // Arraylist of Pipe objects
private Bird gameBird;
private Highscore highscore = new Highscore();
public static Audio audio = new Audio();
public GamePanel () { public GamePanel () {
setGameState(new MenuState(this));
rand = new Random(); // Make the panel focusable
setFocusable(true);
requestFocusInWindow();
// Try to load ttf file gameState.restart(); // Reset game variables
try {
InputStream is = new BufferedInputStream(this.getClass().getResourceAsStream("/res/fonts/flappy-font.ttf"));
flappyFontBase = Font.createFont(Font.TRUETYPE_FONT, is);
// Header and sub-header fonts
flappyScoreFont = flappyFontBase.deriveFont(Font.PLAIN, 50);
flappyFontReal = flappyFontBase.deriveFont(Font.PLAIN, 20);
flappyMiniFont = flappyFontBase.deriveFont(Font.PLAIN, 15);
} catch (Exception ex) {
// Exit is font cannot be loaded
ex.printStackTrace();
System.err.println("Could not load Flappy Font!");
System.exit(-1);
}
restart(); // Reset game variables
// Input listeners // Input listeners
addKeyListener(this); addKeyListener(this);
addMouseListener(this); addMouseListener(this);
}
public void setGameState(GameState state) {
System.out.println("Switching to state: " + state.getClass().getName());
this.gameState = state;
repaint();
} }
/** /**
@ -97,417 +53,14 @@ public class GamePanel extends JPanel implements KeyListener, MouseListener {
*/ */
public void addNotify() { public void addNotify() {
super.addNotify(); super.addNotify();
requestFocus(); requestFocusInWindow(); // Ensures the panel gains focus
ready = true; ready = true;
} }
/**
* Restarts game by resetting game variables
*/
public void restart () {
// Reset game statistics
score = 0;
pipeDistTracker = 0;
scoreWasGreater = false;
// Get current hour with Calendar
// If it is past noon, use the dark theme
cal = Calendar.getInstance();
int currentHour = cal.get(Calendar.HOUR_OF_DAY);
// Array of bird colors
String[] birds = new String[] {
"yellow",
"blue",
"red"
};
// Set random scene assets
darkTheme = currentHour > 12; // If we should use the dark theme
randomBird = birds[rand.nextInt(3)]; // Random bird color
// Game bird
gameBird = new Bird(randomBird, 172, 250, new BufferedImage[] {
textures.get(randomBird + "Bird1").getImage(),
textures.get(randomBird + "Bird2").getImage(),
textures.get(randomBird + "Bird3").getImage()
});
// Remove old pipes
pipes = new ArrayList<Pipe>();
}
/**
* Checks if point is in rectangle
*
* @param r Rectangle
* @return Boolean if point collides with rectangle
*/
private boolean isTouching (Rectangle r) {
return r.contains(clickedPoint);
}
@Override @Override
public void paintComponent (Graphics g) { public void paintComponent (Graphics g) {
super.paintComponent(g); super.paintComponent(g);
gameState.renderGameState(g);
// Set font and color
g.setFont(flappyFontReal);
g.setColor(Color.white);
// Only move screen if bird is alive
if (gameBird.isAlive()) {
// Move base
baseCoords[0] = baseCoords[0] - baseSpeed < -435 ? 435 : baseCoords[0] - baseSpeed;
baseCoords[1] = baseCoords[1] - baseSpeed < -435 ? 435 : baseCoords[1] - baseSpeed;
}
// Background
g.drawImage(darkTheme ? textures.get("background2").getImage() :
textures.get("background1").getImage(), 0, 0, null);
// Draw bird
gameBird.renderBird(g);
switch (gameState) {
case MENU:
drawBase(g);
drawMenu(g);
gameBird.menuFloat();
break;
case GAME:
if (gameBird.isAlive()) {
// Start at instructions state
if (inStartGameState) {
startGameScreen(g);
} else {
// Start game
pipeHandler(g);
gameBird.inGame();
}
drawBase(g); // Draw base over pipes
drawScore(g, score, false, 0, 0); // Draw player score
} else {
pipeHandler(g);
drawBase(g);
// Draw game over assets
gameOver(g);
}
break;
}
}
/////////////////////////
// All drawing methods //
/////////////////////////
/**
* Draws a string centered based on given restrictions
*
* @param s String to be drawn
* @param w Constraining width
* @param h Constraining height
* @param y Fixed y-coordiate
*/
public void drawCentered (String s, int w, int h, int y, Graphics g) {
FontMetrics fm = g.getFontMetrics();
// Calculate x-coordinate based on string length and width
int x = (w - fm.stringWidth(s)) / 2;
g.drawString(s, x, y);
}
/**
* Needs to be called differently based on screen
*/
public void drawBase (Graphics g) {
// Moving base effect
g.drawImage(textures.get("base").getImage(), baseCoords[0], textures.get("base").getY(), null);
g.drawImage(textures.get("base").getImage(), baseCoords[1], textures.get("base").getY(), null);
}
////////////////
// Menuscreen //
////////////////
private void drawMenu (Graphics g) {
// Title
g.drawImage(textures.get("titleText").getImage(),
textures.get("titleText").getX(),
textures.get("titleText").getY(), null);
// Buttons
g.drawImage(textures.get("playButton").getImage(),
textures.get("playButton").getX(),
textures.get("playButton").getY(), null);
g.drawImage(textures.get("leaderboard").getImage(),
textures.get("leaderboard").getX(),
textures.get("leaderboard").getY(), null);
g.drawImage(textures.get("rateButton").getImage(),
textures.get("rateButton").getX(),
textures.get("rateButton").getY(), null);
// Credits :p
drawCentered("Created by Paul Krishnamurthy", FlappyBird.WIDTH, FlappyBird.HEIGHT, 600, g);
g.setFont(flappyMiniFont); // Change font
drawCentered("www.PaulKr.com", FlappyBird.WIDTH, FlappyBird.HEIGHT, 630, g);
}
/////////////////
// Game screen //
/////////////////
public void startGameScreen (Graphics g) {
// Set bird's new position
gameBird.setGameStartPos();
// Get ready text
g.drawImage(textures.get("getReadyText").getImage(),
textures.get("getReadyText").getX(),
textures.get("getReadyText").getY(), null);
// Instructions image
g.drawImage(textures.get("instructions").getImage(),
textures.get("instructions").getX(),
textures.get("instructions").getY(), null);
}
/**
* Aligns and draws score using image textures
*
* @param mini Boolean for drawing small or large numbers
* @param x X-coordinate to draw for mini numbers
*/
public void drawScore (Graphics g, int drawNum, boolean mini, int x, int y) {
// Char array of digits
char[] digits = ("" + drawNum).toCharArray();
int digitCount = digits.length;
// Calculate width for numeric textures
int takeUp = 0;
for (char digit : digits) {
// Size to add varies based on texture
if (mini) {
takeUp += 18;
} else {
takeUp += digit == '1' ? 25 : 35;
}
}
// Calculate x-coordinate
int drawScoreX = mini ? (x - takeUp) : (FlappyBird.WIDTH / 2 - takeUp / 2);
// Draw every digit
for (int i = 0; i < digitCount; i++) {
g.drawImage(textures.get((mini ? "mini-score-" : "score-") + digits[i]).getImage(), drawScoreX, (mini ? y : 60), null);
// Size to add varies based on texture
if (mini) {
drawScoreX += 18;
} else {
drawScoreX += digits[i] == '1' ? 25 : 35;
}
}
}
/**
* Moves and repositions pipes
*/
public void pipeHandler (Graphics g) {
// Decrease distance between pipes
if (gameBird.isAlive()) {
pipeDistTracker --;
}
// Initialize pipes as null
Pipe topPipe = null;
Pipe bottomPipe = null;
// If there is no distance,
// a new pipe is needed
if (pipeDistTracker < 0) {
// Reset distance
pipeDistTracker = Pipe.PIPE_DISTANCE;
for (Pipe p : pipes) {
// If pipe is out of screen
if (p.getX() < 0) {
if (topPipe == null) {
topPipe = p;
topPipe.canAwardPoint = true;
}
else if (bottomPipe == null) {
bottomPipe = p;
topPipe.canAwardPoint = true;
}
}
}
Pipe currentPipe; // New pipe object for top and bottom pipes
// Move and handle initial creation of top and bottom pipes
if (topPipe == null) {
currentPipe = new Pipe("top");
topPipe = currentPipe;
pipes.add(topPipe);
} else {
topPipe.reset();
}
if (bottomPipe == null) {
currentPipe = new Pipe("bottom");
bottomPipe = currentPipe;
pipes.add(bottomPipe);
// Avoid doubling points when passing initial pipes
bottomPipe.canAwardPoint = false;
} else {
bottomPipe.reset();
}
// Set y-coordinate of bottom pipe based on
// y-coordinate of top pipe
bottomPipe.setY(topPipe.getY() + Pipe.PIPE_SPACING);
}
// Move and draw each pipe
for (Pipe p : pipes) {
// Move the pipe
if (gameBird.isAlive()) {
p.move();
}
// Draw the top and bottom pipes
if (p.getY() <= 0) {
g.drawImage(textures.get("pipe-top").getImage(), p.getX(), p.getY(), null);
} else {
g.drawImage(textures.get("pipe-bottom").getImage(), p.getX(), p.getY(), null);
}
// Check if bird hits pipes
if (gameBird.isAlive()) {
if (p.collide(gameBird)) {
// Kill bird and play sound
gameBird.kill();
audio.hit();
} else {
// Checks if bird passes a pipe
if (gameBird.getX() >= p.getX() + p.WIDTH / 2) {
// Increase score and play sound
if (p.canAwardPoint) {
audio.point();
score ++;
p.canAwardPoint = false;
}
}
}
}
}
}
public void gameOver (Graphics g) {
// Game over text
g.drawImage(textures.get("gameOverText").getImage(),
textures.get("gameOverText").getX(),
textures.get("gameOverText").getY(), null);
// Scorecard
g.drawImage(textures.get("scoreCard").getImage(),
textures.get("scoreCard").getX(),
textures.get("scoreCard").getY(), null);
// New highscore image
if (scoreWasGreater) {
g.drawImage(textures.get("newHighscore").getImage(),
textures.get("newHighscore").getX(),
textures.get("newHighscore").getY(), null);
}
// Draw mini fonts for current and best scores
drawScore(g, score, true, 303, 276);
drawScore(g, highscore.bestScore(), true, 303, 330);
// Handle highscore
if (score > highscore.bestScore()) {
// New best score
scoreWasGreater = true;
highscore.setNewBest(score); // Set in data file
}
// Medal
if (score >= 10) { medal = "bronze"; }
if (score >= 20) { medal = "silver"; }
if (score >= 30) { medal = "gold"; }
if (score >= 40) { medal = "platinum"; }
// Only award a medal if they deserve it
if (score > 9) {
g.drawImage(textures.get(medal).getImage(),
textures.get(medal).getX(),
textures.get(medal).getY(), null);
}
// Buttons
g.drawImage(textures.get("playButton").getImage(),
textures.get("playButton").getX(),
textures.get("playButton").getY(), null);
g.drawImage(textures.get("leaderboard").getImage(),
textures.get("leaderboard").getX(),
textures.get("leaderboard").getY(), null);
}
public void openURL (String url) {
try {
if (Desktop.isDesktopSupported()) {
Desktop.getDesktop().browse(new URI(url));
}
} catch (Exception e) {
e.printStackTrace();
System.out.println("Sorry could not open URL...");
}
} }
////////////////////// //////////////////////
@ -517,32 +70,9 @@ public class GamePanel extends JPanel implements KeyListener, MouseListener {
public void keyTyped (KeyEvent e) {} public void keyTyped (KeyEvent e) {}
public void keyReleased (KeyEvent e) {} public void keyReleased (KeyEvent e) {}
public void keyPressed (KeyEvent e) { public void keyPressed(KeyEvent e) {
System.out.println("Key pressed: " + e.getKeyCode());
int keyCode = e.getKeyCode(); gameState.handleKeyboardEvent(e);
if (gameState == MENU) {
// Start game on 'enter' key
if (keyCode == KeyEvent.VK_ENTER) {
gameState = GAME;
inStartGameState = true;
}
} else if (gameState == GAME && gameBird.isAlive()) {
if (keyCode == KeyEvent.VK_SPACE) {
// Exit instructions state
if (inStartGameState) {
inStartGameState = false;
}
// Jump and play audio even if in instructions state
gameBird.jump();
audio.jump();
}
}
} }
/////////////////// ///////////////////
@ -554,71 +84,9 @@ public class GamePanel extends JPanel implements KeyListener, MouseListener {
public void mouseReleased (MouseEvent e) {} public void mouseReleased (MouseEvent e) {}
public void mouseClicked (MouseEvent e) {} public void mouseClicked (MouseEvent e) {}
public void mousePressed (MouseEvent e) { public void mousePressed(MouseEvent e) {
System.out.println("Mouse clicked at: " + e.getPoint());
// Save clicked point gameState.handleMouseEvent(e);
clickedPoint = e.getPoint();
if (gameState == MENU) {
if (isTouching(textures.get("playButton").getRect())) {
gameState = GAME;
inStartGameState = true;
} else if (isTouching(textures.get("leaderboard").getRect())) {
// Dummy message
JOptionPane.showMessageDialog(this,
"We can't access the leaderboard right now!",
"Oops!",
JOptionPane.ERROR_MESSAGE);
}
if (gameBird.isAlive()) {
if (isTouching(textures.get("rateButton").getRect())) {
openURL("http://paulkr.com"); // Open website
}
}
} else if (gameState == GAME) {
if (gameBird.isAlive()) {
// Allow jump with clicks
if (inStartGameState) {
inStartGameState = false;
}
// Jump and play sound
gameBird.jump();
audio.jump();
} else {
// On game over screen, allow restart and leaderboard buttons
if (isTouching(textures.get("playButton").getRect())) {
inStartGameState = true;
gameState = GAME;
restart();
gameBird.setGameStartPos();
} else if (isTouching(textures.get("leaderboard").getRect())) {
// Dummy message
JOptionPane.showMessageDialog(this,
"We can't access the leaderboard right now!",
"Oops!",
JOptionPane.ERROR_MESSAGE);
}
}
}
} }
} }

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@ -22,6 +22,7 @@ public class Highscore {
private static final String FILE_PATH = "/res/data/highscore.dat"; private static final String FILE_PATH = "/res/data/highscore.dat";
private static final URL dataURL = Highscore.class.getResource(FILE_PATH); private static final URL dataURL = Highscore.class.getResource(FILE_PATH);
private static final File dataFile; private static final File dataFile;
static { static {

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@ -0,0 +1,169 @@
package com.example.flappybird.states; /**
* GamePanel.java
* Main game panel
*
* @author Paul Krishnamurthy
*/
import com.example.flappybird.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.BufferedInputStream;
import java.io.InputStream;
import java.net.URI;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Random;
public abstract class GameState {
private final Random rand;
////////////////////
// Game variables //
////////////////////
// Fonts
public static Font flappyFontBase;
public static Font flappyFontReal;
public static Font flappyScoreFont;
public static Font flappyMiniFont = null;
public static Audio audio = new Audio();
// Textures
public static HashMap<String, Texture> textures = new Sprites().getGameTextures();
protected static final int[] baseCoords = { 0, 435 };
protected int score; // Player score
protected int pipeDistTracker; // Distance between pipes
protected boolean inStartGameState = false; // To show instructions scren
protected Point clickedPoint = new Point(-1, -1); // Store point when player clicks
protected boolean scoreWasGreater; // If score was greater than previous highscore
protected String medal; // Medal to be awarded after each game
public static ArrayList<Pipe> pipes; // Arraylist of Pipe objects
protected static boolean darkTheme; // Boolean to show dark or light screen
protected static Bird gameBird;
protected final static Highscore highscore = new Highscore();
public GamePanel gamePanel;
public GameState(GamePanel panel) {
this.gamePanel = panel;
rand = new Random();
// Try to load ttf file
try {
InputStream is = new BufferedInputStream(this.getClass().getResourceAsStream("/res/fonts/flappy-font.ttf"));
flappyFontBase = Font.createFont(Font.TRUETYPE_FONT, is);
// Header and sub-header fonts
flappyScoreFont = flappyFontBase.deriveFont(Font.PLAIN, 50);
flappyFontReal = flappyFontBase.deriveFont(Font.PLAIN, 20);
flappyMiniFont = flappyFontBase.deriveFont(Font.PLAIN, 15);
} catch (Exception ex) {
// Exit is font cannot be loaded
ex.printStackTrace();
System.err.println("Could not load Flappy Font!");
System.exit(-1);
}
}
/**
* Restarts game by resetting game variables
*/
public void restart () {
// Reset game statistics
score = 0;
pipeDistTracker = 0;
scoreWasGreater = false;
// Get current hour with Calendar
// If it is past noon, use the dark theme
Calendar cal = Calendar.getInstance();
int currentHour = cal.get(Calendar.HOUR_OF_DAY);
// Array of bird colors
String[] birds = new String[] {
"yellow",
"blue",
"red"
};
// Set random scene assets
darkTheme = currentHour > 12; // If we should use the dark theme
// Random bird color
String randomBird = birds[rand.nextInt(3)]; // Random bird color
// Game bird
gameBird = new Bird(randomBird, 172, 250, new BufferedImage[] {
textures.get(randomBird + "Bird1").getImage(),
textures.get(randomBird + "Bird2").getImage(),
textures.get(randomBird + "Bird3").getImage()
});
// Remove old pipes
pipes = new ArrayList<Pipe>();
}
/**
* Checks if point is in rectangle
*
* @param r Rectangle
* @return Boolean if point collides with rectangle
*/
protected boolean isTouching (Rectangle r) {
return r.contains(clickedPoint);
}
public void prepareScreen(Graphics g) {
// Set font and color
g.setFont(flappyFontReal);
g.setColor(Color.white);
// Only move screen if bird is alive
if (gameBird.isAlive()) {
// Move base
// Moving base effect
int baseSpeed = 2;
baseCoords[0] = baseCoords[0] - baseSpeed < -435 ? 435 : baseCoords[0] - baseSpeed;
baseCoords[1] = baseCoords[1] - baseSpeed < -435 ? 435 : baseCoords[1] - baseSpeed;
}
// Background
g.drawImage(darkTheme ? textures.get("background2").getImage() :
textures.get("background1").getImage(), 0, 0, null);
// Draw bird
gameBird.renderBird(g);
}
public abstract void renderGameState(Graphics g);
/**
* Needs to be called differently based on screen
*/
public void drawBase (Graphics g) {
// Moving base effect
g.drawImage(textures.get("base").getImage(), baseCoords[0], textures.get("base").getY(), null);
g.drawImage(textures.get("base").getImage(), baseCoords[1], textures.get("base").getY(), null);
}
public abstract void handleKeyboardEvent(KeyEvent e);
public abstract void handleMouseEvent(MouseEvent e);
}

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@ -0,0 +1,117 @@
package com.example.flappybird.states;
import com.example.flappybird.FlappyBird;
import com.example.flappybird.GamePanel;
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.net.URI;
public class MenuState extends GameState {
public MenuState(GamePanel panel) {
super(panel);
}
@Override
public void renderGameState(Graphics g) {
prepareScreen(g);
drawBase(g);
drawMenu(g);
gameBird.menuFloat();
}
/**
* Draws a string centered based on given restrictions
*
* @param s String to be drawn
* @param w Constraining width
* @param h Constraining height
* @param y Fixed y-coordiate
*/
public void drawCentered (String s, int w, int h, int y, Graphics g) {
FontMetrics fm = g.getFontMetrics();
// Calculate x-coordinate based on string length and width
int x = (w - fm.stringWidth(s)) / 2;
g.drawString(s, x, y);
}
protected void drawMenu (Graphics g) {
// Title
g.drawImage(textures.get("titleText").getImage(),
textures.get("titleText").getX(),
textures.get("titleText").getY(), null);
// Buttons
g.drawImage(textures.get("playButton").getImage(),
textures.get("playButton").getX(),
textures.get("playButton").getY(), null);
g.drawImage(textures.get("leaderboard").getImage(),
textures.get("leaderboard").getX(),
textures.get("leaderboard").getY(), null);
g.drawImage(textures.get("rateButton").getImage(),
textures.get("rateButton").getX(),
textures.get("rateButton").getY(), null);
// Credits :p
drawCentered("Created by Paul Krishnamurthy", FlappyBird.WIDTH, FlappyBird.HEIGHT, 600, g);
g.setFont(flappyMiniFont); // Change font
drawCentered("www.PaulKr.com", FlappyBird.WIDTH, FlappyBird.HEIGHT, 630, g);
}
/**
* Tries to open the review url in default web browser
*/
public void openReviewUrl() {
try {
if (Desktop.isDesktopSupported()) {
Desktop.getDesktop().browse(new URI("http://paulkr.com"));
}
} catch (Exception e) {
e.printStackTrace();
System.out.println("Sorry could not open URL...");
}
}
@Override
public void handleKeyboardEvent(KeyEvent e) {
int keyCode = e.getKeyCode();
// Start game on 'enter' key
if (keyCode == KeyEvent.VK_ENTER) {
gamePanel.setGameState(new PlayState(gamePanel));
}
}
@Override
public void handleMouseEvent(MouseEvent e) {
// Save clicked point
clickedPoint = e.getPoint();
if (isTouching(GameState.textures.get("playButton").getRect())) {
gamePanel.setGameState(new PlayState(gamePanel));
} else if (isTouching(GameState.textures.get("leaderboard").getRect())) {
// Dummy message
JOptionPane.showMessageDialog(gamePanel,
"We can't access the leaderboard right now!",
"Oops!",
JOptionPane.ERROR_MESSAGE);
}
Rectangle rect = GameState.textures.get("playButton").getRect();
System.out.println("Texture Rect: x=" + rect.getX() + ", y=" + rect.getY() +
", width=" + rect.getWidth() + ", height=" + rect.getHeight());
if (gameBird.isAlive()) {
if (isTouching(textures.get("rateButton").getRect())) {
openReviewUrl(); // Open website
}
}
}
}

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@ -0,0 +1,318 @@
package com.example.flappybird.states;
import com.example.flappybird.FlappyBird;
import com.example.flappybird.GamePanel;
import com.example.flappybird.Pipe;
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
public class PlayState extends GameState {
public PlayState(GamePanel panel) {
super(panel);
}
public void startGameScreen (Graphics g) {
// Set bird's new position
gameBird.setGameStartPos();
// Get ready text
g.drawImage(textures.get("getReadyText").getImage(),
textures.get("getReadyText").getX(),
textures.get("getReadyText").getY(), null);
// Instructions image
g.drawImage(textures.get("instructions").getImage(),
textures.get("instructions").getX(),
textures.get("instructions").getY(), null);
}
/**
* Aligns and draws score using image textures
*
* @param mini Boolean for drawing small or large numbers
* @param x X-coordinate to draw for mini numbers
*/
public void drawScore (Graphics g, int drawNum, boolean mini, int x, int y) {
// Char array of digits
char[] digits = ("" + drawNum).toCharArray();
int digitCount = digits.length;
// Calculate width for numeric textures
int takeUp = 0;
for (char digit : digits) {
// Size to add varies based on texture
if (mini) {
takeUp += 18;
} else {
takeUp += digit == '1' ? 25 : 35;
}
}
// Calculate x-coordinate
int drawScoreX = mini ? (x - takeUp) : (FlappyBird.WIDTH / 2 - takeUp / 2);
// Draw every digit
for (int i = 0; i < digitCount; i++) {
g.drawImage(textures.get((mini ? "mini-score-" : "score-") + digits[i]).getImage(), drawScoreX, (mini ? y : 60), null);
// Size to add varies based on texture
if (mini) {
drawScoreX += 18;
} else {
drawScoreX += digits[i] == '1' ? 25 : 35;
}
}
}
/**
* Moves and repositions pipes
*/
public void pipeHandler (Graphics g) {
// Decrease distance between pipes
if (gameBird.isAlive()) {
pipeDistTracker --;
}
// Initialize pipes as null
Pipe topPipe = null;
Pipe bottomPipe = null;
// If there is no distance,
// a new pipe is needed
if (pipeDistTracker < 0) {
// Reset distance
pipeDistTracker = Pipe.PIPE_DISTANCE;
for (Pipe p : pipes) {
// If pipe is out of screen
if (p.getX() < 0) {
if (topPipe == null) {
topPipe = p;
topPipe.canAwardPoint = true;
}
else if (bottomPipe == null) {
bottomPipe = p;
topPipe.canAwardPoint = true;
}
}
}
Pipe currentPipe; // New pipe object for top and bottom pipes
// Move and handle initial creation of top and bottom pipes
if (topPipe == null) {
currentPipe = new Pipe("top");
topPipe = currentPipe;
pipes.add(topPipe);
} else {
topPipe.reset();
}
if (bottomPipe == null) {
currentPipe = new Pipe("bottom");
bottomPipe = currentPipe;
pipes.add(bottomPipe);
// Avoid doubling points when passing initial pipes
bottomPipe.canAwardPoint = false;
} else {
bottomPipe.reset();
}
// Set y-coordinate of bottom pipe based on
// y-coordinate of top pipe
bottomPipe.setY(topPipe.getY() + Pipe.PIPE_SPACING);
}
// Move and draw each pipe
for (Pipe p : pipes) {
// Move the pipe
if (gameBird.isAlive()) {
p.move();
}
// Draw the top and bottom pipes
if (p.getY() <= 0) {
g.drawImage(textures.get("pipe-top").getImage(), p.getX(), p.getY(), null);
} else {
g.drawImage(textures.get("pipe-bottom").getImage(), p.getX(), p.getY(), null);
}
// Check if bird hits pipes
if (gameBird.isAlive()) {
if (p.collide(gameBird)) {
// Kill bird and play sound
gameBird.kill();
audio.hit();
} else {
// Checks if bird passes a pipe
if (gameBird.getX() >= p.getX() + p.WIDTH / 2) {
// Increase score and play sound
if (p.canAwardPoint) {
audio.point();
score ++;
p.canAwardPoint = false;
}
}
}
}
}
}
public void gameOver (Graphics g) {
// Game over text
g.drawImage(textures.get("gameOverText").getImage(),
textures.get("gameOverText").getX(),
textures.get("gameOverText").getY(), null);
// Scorecard
g.drawImage(textures.get("scoreCard").getImage(),
textures.get("scoreCard").getX(),
textures.get("scoreCard").getY(), null);
// New highscore image
if (scoreWasGreater) {
g.drawImage(textures.get("newHighscore").getImage(),
textures.get("newHighscore").getX(),
textures.get("newHighscore").getY(), null);
}
// Draw mini fonts for current and best scores
drawScore(g, score, true, 303, 276);
drawScore(g, highscore.bestScore(), true, 303, 330);
// Handle highscore
if (score > highscore.bestScore()) {
// New best score
scoreWasGreater = true;
highscore.setNewBest(score); // Set in data file
}
// Medal
if (score >= 10) { medal = "bronze"; }
if (score >= 20) { medal = "silver"; }
if (score >= 30) { medal = "gold"; }
if (score >= 40) { medal = "platinum"; }
// Only award a medal if they deserve it
if (score > 9) {
g.drawImage(textures.get(medal).getImage(),
textures.get(medal).getX(),
textures.get(medal).getY(), null);
}
// Buttons
g.drawImage(textures.get("playButton").getImage(),
textures.get("playButton").getX(),
textures.get("playButton").getY(), null);
g.drawImage(textures.get("leaderboard").getImage(),
textures.get("leaderboard").getX(),
textures.get("leaderboard").getY(), null);
}
@Override
public void renderGameState(Graphics g) {
prepareScreen(g);
if (gameBird.isAlive()) {
// Start at instructions state
if (inStartGameState) {
startGameScreen(g);
} else {
// Start game
pipeHandler(g);
gameBird.inGame();
}
drawBase(g); // Draw base over pipes
drawScore(g, score, false, 0, 0); // Draw player score
} else {
pipeHandler(g);
drawBase(g);
// Draw game over assets
gameOver(g);
}
}
@Override
public void handleKeyboardEvent(KeyEvent e) {
int keyCode = e.getKeyCode();
if (gameBird.isAlive()) {
if (keyCode == KeyEvent.VK_SPACE) {
// Exit instructions state
if (inStartGameState) {
inStartGameState = false;
}
// Jump and play audio even if in instructions state
gameBird.jump();
audio.jump();
}
}
}
@Override
public void handleMouseEvent(MouseEvent e) {
// Save clicked point
clickedPoint = e.getPoint();
if (gameBird.isAlive()) {
// Allow jump with clicks
if (inStartGameState) {
inStartGameState = false;
}
// Jump and play sound
gameBird.jump();
audio.jump();
} else {
// On game over screen, allow restart and leaderboard buttons
if (isTouching(textures.get("playButton").getRect())) {
inStartGameState = true;
gamePanel.setGameState(new PlayState(gamePanel));
restart();
gameBird.setGameStartPos();
} else if (isTouching(textures.get("leaderboard").getRect())) {
// Dummy message
JOptionPane.showMessageDialog(gamePanel,
"We can't access the leaderboard right now!",
"Oops!",
JOptionPane.ERROR_MESSAGE);
}
}
}
}