English
资源说明：lab2
1 Introduction Many computer games in the genre \adventure role-playing games" have levels 1 lled with rooms that players explore in a quest for treasure and fame. To go to the next level you need to either solve a puzzle, nd a stair-case in the maze of rooms, seek and destroy a vicious monster etc. In this lab assignment we will construct a small program that creates, keeps track of, and displays a level. The program will also provide rudimentary support for moving between rooms by pressing keys on the keyboard. The purpose of the assignment is to learn about dynamic objects that are created at run-time, recursive structures in the form of an incrementally constructed directed graph and operations on such structures, and basic graphical user interfaces (GUI:s) where the model and the view of the model are kept separate. 2 Components The nal program will consist of ve classes. On the course web page you can nd class les for all ve classes. These are incomplete and your task is to ll in the missing parts. Copy these les into a new project in Eclipse before you start your programing. The ve classes that you will write in this lab assignment are: Main This class contains the mandatory method main to which the operating system transfers control when the program starts. This method does just two things: 1. It creates an object of type Driver and 2. calls the method run() that this driver has. This class belongs to the package lab2. Driver The driver class is responsible for creating both a level and a GUI for the level. To create a level, it rst puts together a graph of rooms by creating a set of rooms and connecting them to each other by corridors. It is up to the programmer to choose locations of corridors and which rooms are connected. This class belongs to the package lab2. 1Note that a level here is not the same as experience level that can be found in role-playing games. 1Figure 1: UML-diagram for lab 2. Private inner classes are not shown. Room A dynamic object of this class represents a room. This class belong to the package lab2.level. Level A dynamic object of this class represents a level based on a graph of rooms. Floorplans are observable. This class belong to the package lab2.level. LevelGUI A dynamic object of this class observes a level and visualizes it in the form of a simple 2-dimensional drawing in a separate window. The class belongs to the package lab2.level and contains two private inner classes: Display A kind of area on which graphics can be painted. This is where everything that shows up on the computer screen is produced. Listener A kind of KeyListener (see documentation on Java's GUI and Events in Part 2 of the course compendium), and code that makes a level react on key strokes on a keyboard. A LevelGUI contains a dynamic object of this class. Note that the class Level represents the level itself, while the class LevelGUI represents a view of the level. This di erence will be explained in more detail later in this document. We will now program these classes in separate steps.
本源码包内暂不包含可直接显示的源代码文件，请下载源码包。
