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Thread: packages

  1. #1
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    Default packages

    Hi again.

    Ok so I have been developing a zelda clone. It works beautifully. I just want to clean up and organize my project folder. I started with everything in the same folder. To begin organizing, I put everything I haves as text data files in folders. Now I have maps, images, scripts, saves, and dialogs folders, and edited my game code to load/save everything to the appropriate folders.

    Where I'm stumped is I have a lot of tools, ex. ImageTools.java, IOOperations.java, and TileSet.java to name a few. I also have a million game objects, for ex. gameProp.java, GameEnemy.java, and GameNPC.java to name a few. What I would like to do is put all the tools in a Tools folder and all the objects in an Objects folder.

    I tried so far by adding "package ImageTools;" for example to the top of each tool, using the tool's name
    I then placed every tool into the Tools folder and javac'ed everything, and this was the result.
    I also added import Tools.*;
    I then tried import Tools.toolName.*;

    Further down I was trying to put everything into separate folders within the Tools folder.
    this has been edited for an easier read.

    C:\JSource\MyGame>javac MapMaker.java
    MapMaker.java:36: cannot access Tools.IOOperations
    bad class file: .\Tools\IOOperations.class
    class file contains wrong class: IOOperations
    Please remove or make sure it appears in the correct subdirectory of the classpath.
      private IOOperations ioObject;
              ^
     
     
    C:\JSource\MyGame>javac MapMaker.java
    MapMaker.java:36: cannot access Tools.IOOperations
    bad class file: .\Tools\IOOperations.class
    class file contains wrong class: IOOperations
    Please remove or make sure it appears in the correct subdirectory of the classpath.
      private IOOperations ioObject;
              ^
     
    C:\JSource\MyGame>javac MapMaker.java
    MapMaker.java:15: package Tools.WindowCloser does not exist
    import Tools.WindowCloser.*;
    ^
    MapMaker.java:40: cannot access Tools.IOOperations.IOOperations
    bad class file: .\Tools\IOOperations\IOOperations.java
    file does not contain class Tools.IOOperations.IOOperations
    Please remove or make sure it appears in the correct subdirectory of the classpath.
      private IOOperations ioObject;
              ^
     
    C:\JSource\MyGame>javac MapMaker.java
    MapMaker.java:15: package Tools.WindowCloser does not exist
    import Tools.WindowCloser.*;
    ^
    MapMaker.java:40: cannot find symbol
    symbol  : class IOOperations
    location: package Tools
      private Tools.IOOperations ioObject;
                   ^
    MapMaker.java:41: cannot access Tools.ImageTools.ImageTools
    bad class file: .\Tools\ImageTools\ImageTools.class
    class file contains wrong class: ImageTools.ImageTools
    Please remove or make sure it appears in the correct subdirectory of the classpath.
      private ImageTools iT = new ImageTools();
              ^
     
    C:\JSource\MyGame>javac MapMaker.java
    MapMaker.java:11: package Tools.DecoratedIcon does not exist
    import Tools.DecoratedIcon.*;
    ^
    MapMaker.java:12: package Tools.ImageSplitter does not exist
    import Tools.ImageSplitter.*;
    ^
    MapMaker.java:13: package Tools.ImageTools does not exist
    import Tools.ImageTools.*;
    ^
    MapMaker.java:14: package Tools.IOOperations does not exist
    import Tools.IOOperations.*;
    ^
    MapMaker.java:15: package Tools.WindowCloser does not exist
    import Tools.WindowCloser.*;
    ^
    MapMaker.java:40: package Tools does not exist
      private Tools.IOOperations ioObject;
                   ^
    MapMaker.java:41: cannot access ImageTools
    bad class file: .\ImageTools.class
    class file contains wrong class: ImageTools.ImageTools
    Please remove or make sure it appears in the correct subdirectory of the classpath.
      private ImageTools iT = new ImageTools();
              ^
     
    C:\JSource\MyGame>javac MapMaker.java
    MapMaker.java:35: cannot access IOOperations
    bad class file: .\IOOperations.java
    file does not contain class IOOperations
    Please remove or make sure it appears in the correct subdirectory of the classpath.
      private IOOperations ioObject;
              ^

    Is there a way to do this?


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: packages

    put all the tools in a Tools folder and all the objects in an Objects folder.

    I tried so far by adding "package ImageTools;"
    The package name and folder name must be identical.

    For what its worth, if you these 'tools' are general enough, you might consider creating a separate project (perhaps the same package name) and jar this up - then add this jar to the classpath of your main project. This allows you more freedom to reuse these classes in different projects simply by adding the library to the classpath.

  3. #3
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    Default Re: packages

    I was thinking maybe combining the tools and objects classes into one tools.class and objects.class with delicately crafted constructors.

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