Stendhal on Eclipse

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This guide describes how to setup a development environment in Eclipse for Stendhal.

Get Java

  • If you can play Stendhal, you already have Java and can skip this step.
  • If you do not have java installed, please download it
    (if you are on Linux, use your packet manager)

Get Eclipse

You can click on the following images to see them in large.

Note: If you installed Eclipse in Ubuntu via a package manager, also install: "eclipse-egit"

New Project from Git

In Eclipse:

  • Open menu "File -> Import
  • In the dialog select: "Git -> Projects from Git" and click "Next".
  • Select "Clone URI" and click "Next".
  • Fill in the following information:
    URI: git://
    (if you are a developer with commit access, use ssh://[[username]]
  • The result of the fields are filled in automatically, click "Next"
  • On the Branch selection page, keep everything selected and click "Next"
  • Under "Destination" choose the directory where you want to download the source code and select "Next".
  • Eclipse will now download Stendhal from git, this may take a while
  • "Import existing projects" and select "Next"
  • "Finish" import of project Stendhal

Click on the screenshots to enlarge them, if you need help with any of the steps:

Trouble Shooting

After completing the import wizard, Eclipse should look like the following screenshot:

Eclipse 10.png

There is a project called "stendhal" listed in the Package Explorer view. There may be a tiny yellow triangle in front of the blue project icon. But if you see a red circle or a red exclamation mark, something went wrong. In this case there will be an error in the "Problems" view at the bottom.

Start StendhalServer

  • In the toolbar there is the "Debug" button, which looks like a little, green bug. There is a little black arrow on the right side of it.

Eclipse debug configurations menu.png

  • This will open a menu, please choose "Debug configurations ..." ("Open Debug Dialog..." on older versions)
  • Then in the dialog select "Java Application" and click on the "new" icon in the top left corner.

Eclipse new debug configuration.png

 Name: StendhalServer
 Main class: games.stendhal.server.StendhalServer

* All other settings ("include system libries", "Stop in main", ... can be left at their default value.

on the [Arguments] tab:
VM arguments: -Xmx128M

on the [Classpath] tab:
 click UserEntries
 button "Advanced"
(*) add folder | OK
 and select the "stendhal" project root folder | OK
  • button [Debug]

And then the server should be started.

Start Stendhal Client

  1. Open in the editor
  2. Then again the small black arrow on the right side of the green bug.
  3. Select "Debug Configurations" (or "Run Configurations...").
  4. Select Java Application and click the "New" button in upper-left corner.
  5. On the [Classpath] tab select "User Entries" - button "Advanced" - (*) add folder | OK - and select the project root folder. | OK

Making patches

If you have modified and tested the code and want to send us a patch, please see How To Create Patch For Stendhal.

Running JUnit Tests in Eclipse

This is an advanced topic. If you make changes to the Java code, it is a good idea to run the automatic test.

Setting up JUnit tests in Eclipse:

  1. Click the arrow next to either the green "Run" or "Debug" button.
  2. Select "Run/Debug Configurations...".
  3. Select "JUnit" in the left column and press the "New launch configuration" at the top of left column.
  4. Give it a unique name, like "Stendhal Tests".
  5. Select "Run all tests in the selected project, package or source folder".
  6. OPTIONAL: (this step simply reduces the number of directories that Eclipse will search in for tests)
    1. Press "Search".
    2. Select "tests" folder under Stendhal root directory and press "OK".
  7. Under "Test runner" select "JUnit 4".
  8. Under "Classpath" tab select "User Entries" and press "Advanced" on the right panel.
    • NOTE: There should already be a folder under "User Entries" with a "(default classpath)" suffix. Do not delete this folder.
  9. Select "Add Folders" and press "OK".
  10. Select the Stendhal root folder and press "OK".
  11. Now click "Add JARs..." on the right panel.
  12. Under the Stendhal root folder select all the .jar files in libs and press OK.
  13. Now press "Apply" to save the configuration or "Run" to save and run it.