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finish refactoring

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This commit is contained in:
Jan-Niclas Loosen
2024-11-28 23:23:28 +01:00
parent 08bca1c0db
commit c93b8d02b6
8 changed files with 128 additions and 132 deletions
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26
refactoring/flappy-bird/src/main/java/com/example/flappybird/Bird.java
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@@ -106,29 +106,25 @@ public class Bird extends HasPosition {
/**
* Bird movement during the game
*/
public void inGameBorders () {
// If the bird did not hit the base, lower it
if (y < BASE_COLLISION) {
// Change and velocity
velocity += gravity;
public void moveBird() {
// Change and velocity
velocity += gravity;
// Lower delay if possible
if (delay > 0) { delay--; }
// Lower delay if possible
if (delay > 0) { delay--; }
// Add rounded velocity to y-coordinate
y += (int) velocity;
} else {
// Play audio and set state to dead
FlappyBird.audio.hit();
isAlive = false;
}
// Add rounded velocity to y-coordinate
y += (int) velocity;
}
public boolean collidesWithBase() {
return y >= BASE_COLLISION;
}
/**
* Renders bird
*/
public void renderBird (Graphics g) {
public void paintBird(Graphics g) {
// Calculate angle to rotate bird based on y-velocity
double rotation = ((90 * (velocity + 25) / 25) - 90) * Math.PI / 180;

42
refactoring/flappy-bird/src/main/java/com/example/flappybird/GamePanel.java
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@@ -23,6 +23,9 @@ public class GamePanel extends JPanel implements KeyListener, MouseListener {
// Store point when player clicks
protected Point clickedPoint = new Point(-1, -1);
// Background
protected static int[] backgroundPosition = { 0, 435 };
public GamePanel () {
setGameState(new MenuState(this));
@@ -50,16 +53,49 @@ public class GamePanel extends JPanel implements KeyListener, MouseListener {
/**
* To start game after everything has been loaded
*/
@Override
public void addNotify() {
super.addNotify();
requestFocusInWindow(); // Ensures the panel gains focus
requestFocusInWindow();
ready = true;
}
public void moveBase(Graphics g) {
// Set font and color
g.setFont(FlappyBird.flappyFontReal);
g.setColor(Color.white);
// Only move screen if bird is alive
if (GameState.gameBird.isAlive()) {
// Move base
// Moving base effect
int baseSpeed = 2;
backgroundPosition[0] = backgroundPosition[0] - baseSpeed < -435 ? 435 : backgroundPosition[0] - baseSpeed;
backgroundPosition[1] = backgroundPosition[1] - baseSpeed < -435 ? 435 : backgroundPosition[1] - baseSpeed;
}
// Background
g.drawImage(FlappyBird.darkTheme ? FlappyBird.textures.get("background2").getImage() :
FlappyBird.textures.get("background1").getImage(), 0, 0, null);
// Draw bird
GameState.gameBird.paintBird(g);
}
/**
* Needs to be called differently based on screen
*/
public void paintBase(Graphics g) {
// Moving base effect
g.drawImage(FlappyBird.textures.get("base").getImage(), backgroundPosition[0], FlappyBird.textures.get("base").getY(), null);
g.drawImage(FlappyBird.textures.get("base").getImage(), backgroundPosition[1], FlappyBird.textures.get("base").getY(), null);
}
@Override
public void paintComponent (Graphics g) {
public void paintComponent(Graphics g) {
super.paintComponent(g);
gameState.renderGameState(g);
gameState.paintGameState(g);
}
//////////////////////

10
refactoring/flappy-bird/src/main/java/com/example/flappybird/Pipe.java
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@@ -27,13 +27,13 @@ public class Pipe extends HasPosition {
// If the bird can get a point passing this pipe
public boolean canAwardPoint = true;
public Pipe (String location) {
public Pipe(String location) {
super(FlappyBird.WIDTH + 5, 0);
this.location = location;
reset();
}
public void reset () {
public void reset() {
super.x = FlappyBird.WIDTH + 5; // Reset x-coordinate
// Set boundaries for top pipes
@@ -46,7 +46,7 @@ public class Pipe extends HasPosition {
/**
* Moves the pipe
*/
public void move () {
public void move() {
super.x += SPEED;
}
@@ -55,7 +55,7 @@ public class Pipe extends HasPosition {
* @param bird The bird.
* @return If bird is colliding with the pipe
*/
public boolean collide (Bird bird) {
public boolean collide(Bird bird) {
// Do not allow bird to jump over pipe
if (bird.getX() > super.x && bird.getY() < 0 && canAwardPoint) {
return true;
@@ -71,7 +71,7 @@ public class Pipe extends HasPosition {
* Set's pipe's y-coordinate (for bottom pipes)
* @param newY New y-coordinate
*/
public void setY (int newY) {
public void setY(int newY) {
y = newY;
}
}

2
refactoring/flappy-bird/src/main/java/com/example/flappybird/Sprites.java
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@@ -135,7 +135,7 @@ public class Sprites {
*
* @return Texture
*/
public HashMap<String, Texture> getGameTextures () {
public HashMap<String, Texture> getGameTextures() {
return textures;
}

42
refactoring/flappy-bird/src/main/java/com/example/flappybird/states/GameState.java
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@@ -17,9 +17,6 @@ public abstract class GameState {
// Game variables //
////////////////////
// Background
protected static final int[] baseCoords = { 0, 435 };
// Player score
protected int score;
@@ -33,7 +30,7 @@ public abstract class GameState {
public static ArrayList<Pipe> pipes;
// Game bird
protected static Bird gameBird;
public static Bird gameBird;
// Game panel
public GamePanel gamePanel;
@@ -46,7 +43,6 @@ public abstract class GameState {
* Restarts game by resetting game variables
*/
public void restart () {
// Reset game statistics
score = 0;
pipeDistTracker = 0;
@@ -59,41 +55,7 @@ public abstract class GameState {
pipes = new ArrayList<Pipe>();
}
public void prepareScreen(Graphics g) {
// Set font and color
g.setFont(FlappyBird.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(FlappyBird.darkTheme ? FlappyBird.textures.get("background2").getImage() :
FlappyBird.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(FlappyBird.textures.get("base").getImage(), baseCoords[0], FlappyBird.textures.get("base").getY(), null);
g.drawImage(FlappyBird.textures.get("base").getImage(), baseCoords[1], FlappyBird.textures.get("base").getY(), null);
}
public abstract void paintGameState(Graphics g);
public abstract void handleKeyboardEvent(KeyEvent e);
public abstract void handleMouseEvent(MouseEvent e);
}

46
refactoring/flappy-bird/src/main/java/com/example/flappybird/states/MenuState.java
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@@ -14,32 +14,16 @@ public class MenuState extends GameState {
}
@Override
public void renderGameState(Graphics g) {
prepareScreen(g);
public void paintGameState(Graphics g) {
gamePanel.moveBase(g);
gamePanel.paintBase(g);
drawBase(g);
drawMenu(g);
paintMenu(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-coordinate
*/
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) {
protected void paintMenu(Graphics g) {
// Title
g.drawImage(FlappyBird.textures.get("titleText").getImage(),
FlappyBird.textures.get("titleText").getX(),
@@ -57,15 +41,29 @@ public class MenuState extends GameState {
FlappyBird.textures.get("rateButton").getY(), null);
// Credits :p
drawCentered("Created by Paul Krishnamurthy", FlappyBird.WIDTH, FlappyBird.HEIGHT, 600, g);
paintCenteredText("Created by Paul Krishnamurthy", 600, g);
g.setFont(FlappyBird.flappyMiniFont); // Change font
drawCentered("www.PaulKr.com", FlappyBird.WIDTH, FlappyBird.HEIGHT, 630, g);
paintCenteredText("www.PaulKr.com", 630, g);
}
/**
* Draws a string centered based on given restrictions
*
* @param text String to be drawn
* @param yPos Fixed y-coordinate
*/
protected void paintCenteredText(String text, int yPos, Graphics g) {
FontMetrics fm = g.getFontMetrics();
// Calculate x-coordinate based on string length and width
int x = (FlappyBird.WIDTH - fm.stringWidth(text)) / 2;
g.drawString(text, x, yPos);
}
/**
* Tries to open the review url in default web browser
*/
public void openReviewUrl() {
protected void openReviewUrl() {
try {
if (Desktop.isDesktopSupported()) {
Desktop.getDesktop().browse(new URI("http://paulkr.com"));

90
refactoring/flappy-bird/src/main/java/com/example/flappybird/states/PlayState.java
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@@ -1,9 +1,6 @@
package com.example.flappybird.states;
import com.example.flappybird.FlappyBird;
import com.example.flappybird.GamePanel;
import com.example.flappybird.Highscore;
import com.example.flappybird.Pipe;
import com.example.flappybird.*;
import javax.swing.*;
import java.awt.*;
@@ -23,7 +20,42 @@ public class PlayState extends GameState {
super(panel);
}
public void startGameScreen (Graphics g) {
@Override
public void paintGameState(Graphics g) {
gamePanel.moveBase(g);
if (gameBird.isAlive()) {
// Start at instructions state
if (inStartGameState) {
paintStartScreen(g);
}
else {
// Start game
movePipes(g);
gameBird.moveBird();
if(gameBird.collidesWithBase()) {
// Play audio and set state to dead
gameBird.killBird();
FlappyBird.audio.hit();
}
}
// Draw base over pipes
gamePanel.paintBase(g);
// Draw player score
paintScore(g, score, false, 0, 0);
}
else {
movePipes(g);
gamePanel.paintBase(g);
// Draw game over assets
paintScoreBoard(g);
}
}
protected void paintStartScreen(Graphics g) {
// Set bird's new position
gameBird.setGameStartPos();
@@ -44,9 +76,9 @@ public class PlayState extends GameState {
* @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) {
public void paintScore(Graphics g, int drawNum, boolean mini, int x, int y) {
// Char array of digits
char[] digits = ("" + drawNum).toCharArray();
char[] digits = (String.valueOf(drawNum)).toCharArray();
// Calculate width for numeric textures
int takeUp = 0;
@@ -65,7 +97,8 @@ public class PlayState extends GameState {
// Draw every digit
for (char digit : digits) {
g.drawImage(FlappyBird.textures.get((mini ? "mini-score-" : "score-") + digit).getImage(), drawScoreX, (mini ? y : 60), null);
Texture texture = FlappyBird.textures.get((mini ? "mini-score-" : "score-") + digit);
g.drawImage(texture.getImage(), drawScoreX, (mini ? y : 60), null);
// Size to add varies based on texture
if (mini) {
@@ -79,7 +112,7 @@ public class PlayState extends GameState {
/**
* Moves and repositions pipes
*/
public void pipeHandler (Graphics g) {
protected void movePipes(Graphics g) {
// Decrease distance between pipes
if (gameBird.isAlive()) {
@@ -162,8 +195,8 @@ public class PlayState extends GameState {
// Kill bird and play sound
gameBird.killBird();
FlappyBird.audio.hit();
} else {
}
else {
// Checks if bird passes a pipe
if (gameBird.getX() >= p.getX() + Pipe.WIDTH / 2) {
@@ -179,7 +212,7 @@ public class PlayState extends GameState {
}
}
public void gameOver (Graphics g) {
protected void paintScoreBoard(Graphics g) {
// Game over text
g.drawImage(FlappyBird.textures.get("gameOverText").getImage(),
FlappyBird.textures.get("gameOverText").getX(),
@@ -198,8 +231,8 @@ public class PlayState extends GameState {
}
// Draw mini fonts for current and best scores
drawScore(g, score, true, 303, 276);
drawScore(g, highscore.bestScore(), true, 303, 330);
paintScore(g, score, true, 303, 276);
paintScore(g, highscore.bestScore(), true, 303, 330);
// Handle highscore
if (score > highscore.bestScore()) {
@@ -231,35 +264,6 @@ public class PlayState extends GameState {
FlappyBird.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.inGameBorders();
}
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();