Add second year

second/semester2/CT255/Assignments/Assigment-04/Alien.java

@@ -0,0 +1,31 @@
+import java.awt.*;
+import javax.swing.*;
+
+public class Alien extends Sprite2D {
+    private int stepSize = 2;
+
+    public Alien(Image image) {
+        super(image);
+    }
+
+    // method to randomly move the alien
+    public void move(boolean right) {
+        // changing the x & y co-ordinates (inherited from superclass) by either plus or minus the stepSize, depending on the direction
+        if (right) {
+            x += stepSize;
+        }
+        else {
+            x -= stepSize;
+        }
+    } 
+
+    // method to move aliend down 
+    public void moveDown() {
+        y += 10;
+    }
+
+    // getter method for the alien's x coordinate 
+    public int getx() {
+        return x; 
+    }
+}