Add documentation and fix continue bug

src/BackgroundImage.java

@@ -1,7 +1,7 @@
-//The purpose of this class is to create a background which acts as a parallax
+// Eric Li, Charlie Zhao, ICS4U, Finished 2022-06-15
-import javax.swing.*;
+// the purpose of this class is to create a background
+// this background can also be parallax and move as the player moves
 import java.awt.*;
-import java.awt.image.BufferedImage;
 import java.io.Serializable;
 
 public class BackgroundImage implements Serializable {
@@ -23,8 +23,9 @@ public class BackgroundImage implements Serializable {
         this.camera = camera;
     }
     public void draw(Graphics g){
+        // draw image, image moves one pixel every parallaxRatio pixels the camera moves
         g.drawImage(backgroundImage.image, x-camera.x/parallaxRatio % GamePanel.GAME_WIDTH, y, width, height, null);
-        // added to prevent the background image from disappearing
+        // draws second image so that the background is always present
         g.drawImage(backgroundImage.image, x-camera.x/parallaxRatio % GamePanel.GAME_WIDTH + GamePanel.GAME_WIDTH - 1, y, width, height, null);
     }
 }

src/BombDirectionShow.java

@@ -1,7 +1,9 @@
+// Eric Li, Charlie Zhao, ICS4U, Finished 2022-06-17
+// this class shows the projected trajectory of a bomb based on the current mouse position
+
 import javax.sound.sampled.LineUnavailableException;
 import javax.sound.sampled.UnsupportedAudioFileException;
 import java.awt.*;
-import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.io.Serializable;
 
@@ -13,11 +15,14 @@ public class BombDirectionShow extends StickyBomb implements Serializable {
     }
 
     public void draw(Graphics g) throws UnsupportedAudioFileException, LineUnavailableException, IOException {
+        // updates realX (affected by camera.x)
         update();
         isMove = true;
+        // renders a maximum of 10 rectangles
         int loopCounter = 0;
         while(isMove&&loopCounter<10) {
             super.move();
+            // draws rectangles if they don't intersect a tile
             if(isMove&&canUpdate(0,0)) {
                 g.drawRect(x - GameFrame.game.camera.x, y, 2, 2);
             }

src/BufferedImageWrapper.java

@@ -1,3 +1,6 @@
+// Eric Li, Charlie Zhao, ICS4U, Finished 2022-06-19
+// Enables serialization of the otherwise unserializable BufferedImage object
+
 import javax.imageio.ImageIO;
 import java.awt.image.BufferedImage;
 import java.awt.image.ColorModel;
@@ -11,28 +14,34 @@ public class BufferedImageWrapper implements Serializable {
     public String imageString;
     public Boolean flipImage = false;
 
+    // same constructor as BufferedImage
     public BufferedImageWrapper(int width, int height, int imageType) {
         image = new BufferedImage(width, height, imageType);
     }
 
+    // same constructor as BufferedImage
     public BufferedImageWrapper(int width, int height, int imageType, IndexColorModel cm) {
         image = new BufferedImage(width, height, imageType, cm);
     }
 
+    // same constructor as BufferedImage
     public BufferedImageWrapper(ColorModel cm, WritableRaster raster, boolean isRasterPremultiplied, Hashtable<?, ?> properties) {
         image = new BufferedImage(cm, raster, isRasterPremultiplied, properties);
     }
 
+    // directly load an image into the object
     public BufferedImageWrapper(BufferedImage image) {
         this.image = image;
     }
 
+    // save a file location to load the image from
     public BufferedImageWrapper(String imageString) throws IOException {
-        image = GamePanel.getImage(imageString);
+        this(imageString, false);
-        this.imageString = imageString;
     }
 
+    // save a file location to load the image from, and flip the image if necessary
     public BufferedImageWrapper(String imageString, boolean flip) throws IOException {
+        // flip the image by calling the GamePanel static method if the flip boolean is passed as true
         BufferedImage temporaryImage = GamePanel.getImage(imageString);
         if (flip) {
             image = GamePanel.flipImageHorizontally(temporaryImage);
@@ -43,33 +52,41 @@ public class BufferedImageWrapper implements Serializable {
         this.imageString = imageString;
     }
 
+    // empty constructor to allow using the custom serializing method readObject
     public BufferedImageWrapper() {}
 
+    // custom writeObject method that allows writing an otherwise unserializable method to disk
     @Serial
     private void writeObject(ObjectOutputStream out) throws IOException {
+        // save whether the image is flipped
         out.writeObject(flipImage);
+        // if the imageString is present, write that to disk to prevent excessive disk writes
         if (imageString != null) {
             out.writeObject(imageString);
-        } else {
+        } else { // otherwise, write the image to disk
             ImageIO.write(image, "png", out); // png is lossless
         }
     }
 
+    // custom readObject method that allows reading an otherwise unserializable method from disk
     @Serial
     private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
         Object o;
+        // read whether the image is flipped or not
         flipImage = (Boolean)in.readObject();
         o = in.readObject();
+        // if the loaded object is a string, load the image residing at the path received from Path.of(string)
         if (o instanceof String) {
             BufferedImage temporaryImage;
             this.imageString = (String)o;
             temporaryImage = GamePanel.getImage(imageString);
+            // then flip the image if the flipImage boolean is true
             if (flipImage) {
                 image = GamePanel.flipImageHorizontally(temporaryImage);
             } else {
                 image = temporaryImage;
             }
-        } else {
+        } else { // otherwise, load the image directly from the save file
             image = ImageIO.read(in);
         }
     }

src/Camera.java

@@ -1,8 +1,10 @@
-import java.io.Serializable;
+// Eric Li, Charlie Zhao, ICS4U, Finished 2022-06-12
-
 //This class controls the x-scrolling aspect for the player
 //If you look at the players absolute position(Relative to the screen), the players y position changes, but the x position
 //never actually changes.
+
+import java.io.Serializable;
+
 public class Camera implements Serializable {
     public int x;
     public Camera(int x){

src/CameraPanel.java

@@ -1,6 +1,10 @@
+// Eric Li, Charlie Zhao, ICS4U, Finished 2022-06-19
+// This class extends JPanel and adds a Camera to it, allowing it to keep the same camera object
+
 import javax.swing.*;
 
 public class CameraPanel extends JPanel {
+    // creates new camera
     public Camera camera = new Camera(0);
     
     public CameraPanel() {}

src/FileManager.java

@@ -2,11 +2,9 @@
 //This class allows us to input and output flies useful for
 // inputting levels and making save data.
 import java.io.*;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Scanner;
 
-// TODO: close scanner etc after use
 public final class FileManager {
 
     // will create file if it doesn't exist

src/GameFrame.java

@@ -28,7 +28,6 @@ public class GameFrame extends JFrame{
       main = new CameraPanel();
       main.setLayout(new CardLayout());
       try {
-        System.out.println("done2");
         game = (GamePanel)FileManager.readObjectFromFile("local/game_state.dat", Arrays.asList("Any"));
         game.gameFrame = main;
         game.isContinue = true;

src/GamePanel.java

@@ -39,6 +39,7 @@ public class GamePanel extends JPanel implements Runnable, KeyListener, Serializ
   public static Font loreFont = new Font(Font.MONOSPACED, Font.ITALIC + Font.BOLD, 36);
   public static Color tutorialColor = Color.darkGray;
   public static Color loreColor = Color.lightGray;
+  public int level = 1;
   public PauseMenu loadingMenu;
 
   public int bombCount;

src/LevelManager.java

@@ -1,14 +1,11 @@
-import javax.imageio.ImageIO;
 import javax.sound.sampled.LineUnavailableException;
 import javax.sound.sampled.UnsupportedAudioFileException;
-import java.awt.*;
 import java.io.IOException;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Arrays;
 
 public class LevelManager implements Serializable {
-    public static int level = 1;
     public static int xSpawn = -400;
     public static int ySpawn = 450;
 
@@ -20,7 +17,7 @@ public class LevelManager implements Serializable {
         GameFrame.game.fireballs.clear();
         GameFrame.game.player.yVelocity = 0;
         GameFrame.game.player.xVelocity = 0;
-        LevelManager.level = level;
+        GameFrame.game.level = level;
         if(level == 1){
             //-400/450
             xSpawn = -400;
@@ -88,7 +85,6 @@ public class LevelManager implements Serializable {
         setLevel(level, false);
     }
     public static void nextLevel(){
-        setLevel(level+1);
+        setLevel(GameFrame.game.level+1);
-        System.out.println("done222");
     }
 }

src/Player.java

@@ -292,13 +292,13 @@ public class Player extends GenericSprite {
 
   public void reset() throws UnsupportedAudioFileException, LineUnavailableException, IOException {
     SoundWrapper.playSound("sound/OOF.wav");
-    LevelManager.setLevel(LevelManager.level, true);
+    LevelManager.setLevel(GameFrame.game.level, true);
     GameFrame.game.camera.x = LevelManager.xSpawn;
     y = LevelManager.ySpawn;
     holdingSteel = false;
   }
   public void resetNoSound() throws IOException {
-    LevelManager.setLevel(LevelManager.level, true);
+    LevelManager.setLevel(GameFrame.game.level, true);
     GameFrame.game.camera.x = LevelManager.xSpawn;
     y = LevelManager.ySpawn;
     holdingSteel = false;