Add sprites

.idea/uiDesigner.xml

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>

src/GamePanel.java

@@ -9,6 +9,10 @@ Implements Runnable interface to use "threading" - let the game do two things at
 */
 import java.awt.*;
 import java.awt.event.*;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import javax.imageio.ImageIO;
 import javax.swing.*;
 
 public class GamePanel extends JPanel implements Runnable, KeyListener{
@@ -20,18 +24,36 @@ public class GamePanel extends JPanel implements Runnable, KeyListener{
   public Thread gameThread;
   public Image image;
   public Graphics graphics;
-  public PlayerBall ball;
+  public Player player;
+  public int frame;
+  // keeps track of how many ticks has elapsed since last frame change
+  public int frameCounter = 0;
+
+  public BufferedImage[][] spriteArray = new BufferedImage[4][11];
 
 
   public GamePanel(){
-    ball = new PlayerBall(GAME_WIDTH/2, GAME_HEIGHT/2); //create a player controlled ball, set start location to middle of screen
+    for (int i = 0; i < 11; i++) {
+      try {
+        BufferedImage sprite = getImage(String.format("img/walk/p1_walk%s.png", String.format("%1$2s", i+1).replace(' ', '0')));
+
+        spriteArray[1][i] = sprite;
+        spriteArray[3][i] = sprite;
+        spriteArray[0][i] = sprite;
+        spriteArray[2][i] = sprite;
+
+      } catch (IOException e) {
+        e.printStackTrace();
+      }
+    }
+    player = new Player(GAME_WIDTH/2, GAME_HEIGHT/2, 'W', 'A', 'S', 'D', spriteArray); //create a player controlled player, set start location to middle of screen
     this.setFocusable(true); //make everything in this class appear on the screen
     this.addKeyListener(this); //start listening for keyboard input
 
     //add the MousePressed method from the MouseAdapter - by doing this we can listen for mouse input. We do this differently from the KeyListener because MouseAdapter has SEVEN mandatory methods - we only need one of them, and we don't want to make 6 empty methods
     addMouseListener(new MouseAdapter() {
 			public void mousePressed(MouseEvent e) {
-				ball.mousePressed(e);
+				player.mousePressed(e);
 			}
 		});
     this.setPreferredSize(new Dimension(GAME_WIDTH, GAME_HEIGHT));
@@ -46,37 +68,37 @@ public class GamePanel extends JPanel implements Runnable, KeyListener{
     //we are using "double buffering here" - if we draw images directly onto the screen, it takes time and the human eye can actually notice flashes of lag as each pixel on the screen is drawn one at a time. Instead, we are going to draw images OFF the screen, then simply move the image on screen as needed. 
     image = createImage(GAME_WIDTH, GAME_HEIGHT); //draw off screen
     graphics = image.getGraphics();
-    draw(graphics);//update the positions of everything on the screen 
+    draw(graphics, frame);//update the positions of everything on the screen
     g.drawImage(image, 0, 0, this); //move the image on the screen
 
   }
 
   //call the draw methods in each class to update positions as things move
-  public void draw(Graphics g){
+  public void draw(Graphics g, int frame){
-    ball.draw(g);
+    frameCounter += player.draw(g, frame);
   }
 
   //call the move methods in other classes to update positions
   //this method is constantly called from run(). By doing this, movements appear fluid and natural. If we take this out the movements appear sluggish and laggy
   public void move(){
-    ball.move();
+    player.move();
   }
 
   //handles all collision detection and responds accordingly
   public void checkCollision(){
     
     //force player to remain on screen
-    if(ball.y<= 0){
+    if(player.y<= 0){
-      ball.y = 0;
+      player.y = 0;
     }
-    if(ball.y >= GAME_HEIGHT - PlayerBall.BALL_DIAMETER){
+    if(player.y >= GAME_HEIGHT - Player.PLAYER_HEIGHT){
-      ball.y = GAME_HEIGHT-PlayerBall.BALL_DIAMETER;
+      player.y = GAME_HEIGHT- Player.PLAYER_HEIGHT;
     }
-    if(ball.x <= 0){
+    if(player.x <= 0){
-      ball.x = 0;
+      player.x = 0;
     }
-    if(ball.x + PlayerBall.BALL_DIAMETER >= GAME_WIDTH){
+    if(player.x + Player.PLAYER_WIDTH >= GAME_WIDTH){
-      ball.x = GAME_WIDTH-PlayerBall.BALL_DIAMETER;
+      player.x = GAME_WIDTH- Player.PLAYER_WIDTH;
     }
   }
 
@@ -99,23 +121,34 @@ public class GamePanel extends JPanel implements Runnable, KeyListener{
         move();
         checkCollision();
         repaint();
+        if (frameCounter > 10) {
+          System.out.println(frameCounter);
+          // increment sprite image to be used and keeps it below 12
+          frame = (frame + 1) % 11;
+          frameCounter -= 10;
+        }
         delta--;
       }
     }
   }
 
-  //if a key is pressed, we'll send it over to the PlayerBall class for processing
+  //if a key is pressed, we'll send it over to the Player class for processing
   public void keyPressed(KeyEvent e){
-    ball.keyPressed(e);
+    player.keyPressed(e);
   }
 
-  //if a key is released, we'll send it over to the PlayerBall class for processing
+  //if a key is released, we'll send it over to the Player class for processing
   public void keyReleased(KeyEvent e){
-    ball.keyReleased(e);
+    player.keyReleased(e);
   }
 
   //left empty because we don't need it; must be here because it is required to be overridded by the KeyListener interface
   public void keyTyped(KeyEvent e){
 
   }
+
+  public BufferedImage getImage(String imageLocation) throws IOException {
+    return ImageIO.read(new File(imageLocation));
+  }
+
 }

src/GenericSprite.java

@@ -7,7 +7,7 @@ In 2D GUI, basically everything is a rectangle even if it doesn't look like it!
 import java.awt.*;
 import java.awt.event.*;
 
-public class PlayerBall extends Rectangle{
+public class GenericSprite extends Rectangle{
 
   public int yVelocity;
   public int xVelocity;
@@ -15,8 +15,8 @@ public class PlayerBall extends Rectangle{
   public static final int BALL_DIAMETER = 20; //size of ball
 
   //constructor creates ball at given location with given dimensions
-  public PlayerBall(int x, int y){
+  public GenericSprite(int x, int y, int height, int width){
-    super(x, y, BALL_DIAMETER, BALL_DIAMETER);
+    super(x, y, height, width);
   }
 
   //called from GamePanel when any keyboard input is detected

src/Player.java

@@ -0,0 +1,57 @@
+/* Eric Li, ICS4U, Completed 5/29/2022
+
+Paddle class defines behaviours for the left and right player-controlled paddles */
+
+import java.awt.*;
+import java.awt.event.KeyEvent;
+import java.awt.image.BufferedImage;
+import java.awt.image.ImageObserver;
+
+public class Player extends GenericSprite {
+  public final int SPEED = 5;
+  public static final int PLAYER_WIDTH = 8;
+  public static final int PLAYER_HEIGHT = 80;
+  public int upKey, downKey, rightKey, leftKey;
+  // sA[0] is -x, -y
+  // sA[1] is x, -y
+  // sA[2] is -x, y
+  // sA[3] is x, y
+  public BufferedImage[][] spriteArray;
+  public Player(int x, int y, int upKey, int downKey, int leftKey, int rightKey, BufferedImage[][] sprites) {
+    super(x, y, PLAYER_HEIGHT, PLAYER_WIDTH);
+
+    this.upKey = upKey;
+    this.downKey = downKey;
+    this.leftKey = leftKey;
+    this.rightKey = rightKey;
+    spriteArray = sprites;
+  }
+
+
+
+  // moves paddle when key is pressed
+  public void keyPressed(KeyEvent e) {
+    super.keyPressed(e);
+  }
+
+  // stops moving paddle when key is released
+  public void keyReleased(KeyEvent e) {
+    super.keyReleased(e);
+  }
+
+  // calls parent
+  public void move() {
+    super.move();
+  }
+
+  public int draw(Graphics g, int frame) {
+    // g.setColor(Color.WHITE);
+    if (xVelocity == 0 && yVelocity == 0) {
+      g.drawImage(spriteArray[1][0], x, y, null);
+      return 0;
+    } else {
+      g.drawImage(spriteArray[(int)(Math.signum(xVelocity)+Math.signum(yVelocity)*2+3)/2][frame], x, y, null);
+      return 1;
+    }
+  }
+}