Exercise 1

import imagePackage.RasterImage;

import java.awt.Color; import java.awt.Composite; import java.awt.Dimension; import java.awt.Font; import java.awt.Graphics2D; import java.awt.Paint; import java.awt.Shape; import java.awt.Stroke; import java.awt.Toolkit; import java.awt.geom.AffineTransform; import java.awt.geom.Point2D; import java.io.PrintStream;

public class BattleField {

public static void main(String[] args) { /* * Exercise: * Create an Array of Aliens, positioned according to a bounding box * * */

final int ROWS = 3; final int COLS = 10; Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); RasterImage gameBoard = new RasterImage(640,480); gameBoard.show(); gameBoard.setTitle("BattleField"); Graphics2D g = gameBoard.getGraphics2D();

Alien[][] aliens = new Alien[ROWS][COLS]; // 2D array of Aliens

for (int col=0; col for (int row=0; row

// create and initialize position of Aliens Point2D.Double pos = new Point2D.Double(col*60.0, row*60.0); aliens[row][col] = new Alien(pos); aliens[row][col].drawAlien(g);

}

} Hero shooter = new Hero(200,350); shooter.draw(g);

//

} }

Exercise 01 (Familiarization of Battlefield and extension of Alien Class): Goal: Building on lab 3, the goal of this lab is to create a family of Alien objects. In the project file for lab 4, a simplified solution to lab 3 is provided: i.e. with the final version of the three classes: Alien, Hero & BattleField. Run the BattleField class (it has a main method implemented). This will generate and display an array of alien objects (that are a instantiated using default color settings, arranged in a grid pattern on the RasterImage object) In this first task, familiarize yourself with these classes, then modify the main method in BattleField.java so that a random alien from the array "aliens" is selected, and the alien is re-coloured to be Color.RED Run your program a couple of times to ensure that this is the case Keep in mind, after you set the alien's colour property, you will need to re-draw it (see the methods provided in the Alien class for this) Exercise 01 (Familiarization of Battlefield and extension of Alien Class): Goal: Building on lab 3, the goal of this lab is to create a family of Alien objects. In the project file for lab 4, a simplified solution to lab 3 is provided: i.e. with the final version of the three classes: Alien, Hero & BattleField. Run the BattleField class (it has a main method implemented). This will generate and display an array of alien objects (that are a instantiated using default color settings, arranged in a grid pattern on the RasterImage object) In this first task, familiarize yourself with these classes, then modify the main method in BattleField.java so that a random alien from the array "aliens" is selected, and the alien is re-coloured to be Color.RED Run your program a couple of times to ensure that this is the case Keep in mind, after you set the alien's colour property, you will need to re-draw it (see the methods provided in the Alien class for this)