How to run/debug in IDE and load icons from data source

README.md

@@ -20,6 +20,44 @@ https://discord.com/invite/ucjftZ7x7H
 5. Remove the duplicate "META-INF/services/javax.imageio.spi.ImageReaderSpi" files that share the same name located in META-INF so that only the BLP related file is present
 6. Save the JAR and exit 7zip
 *(This process will hopefully become easier in the future)*
+
+## How to run/debug in IDE
+1. Use a working directory (e. g. the project root directory) to run Warsmash from the IDE.
+1. Copy [warsmash.ini](./core/assets/warsmash.ini) file into the working directory.
+2. Adapt all the file paths in section`[DataSources]` to your local Warcraft installation or other data sources and make sure that they all do exist and add the project directories [.\core\assets\resources](.\core\assets\resources) and [.\resources](.\resources) are included since they contain required files.
+All relative paths must work for your working directory:
+
+````
+[DataSources]
+Count=8
+// Reforged
+Type00=CASC
+Path00="C:\Program Files (x86)\Warcraft III"
+Prefixes00=war3.w3mod,war3.w3mod\_deprecated.w3mod,war3.w3mod\_locales\enus.w3mod
+//Prefixes00=war3.w3mod,war3.w3mod\_deprecated.w3mod,war3.w3mod\_locales\enus.w3mod,war3.w3mod\_hd.w3mod,war3.w3mod\_hd.w3mod\_locales\enus.w3mod
+// Warcraft III: Reign of Chaos
+Type01=MPQ
+Path01="D:\Warcraft III\war3.mpq"
+// Warcraft III: The Frozen Throne
+Type02=MPQ
+Path02="D:\Warcraft III\War3x.mpq"
+// Warcraft III: The Frozen Throne Language
+Type03=MPQ
+Path03="D:\Warcraft III\War3xlocal.mpq"
+// Warcraft III: The Frozen Throne Patch
+Type04=MPQ
+Path04="D:\Warcraft III\War3Patch.mpq"
+// Warsmash
+Type05=Folder
+Path05=".\core\assets\"
+Type06=Folder
+Path06=".\resources\"
+Type07=Folder
+Path07="."
+````
+
+4. Run/debug the method `com.etheller.warsmash.desktop.DesktopLauncher.main` with the options `-nolog -window -loadfile <path to your .w3x file>` from your IDE to load your custom map file in windowed mode and print the logs into the console instead of a log file.
+   If the path to your .w3x file is relative, it has to be found from your working directory.
 
 ## Background and History
 My current codebase is running on Java 8 and the LibGDX game engine coupled with the port of the mdx-m3-viewer's engine. It contains:

desktop/src/com/etheller/warsmash/desktop/DesktopLauncher.java

@@ -12,6 +12,8 @@
 import java.io.PrintStream;
 import java.nio.FloatBuffer;
 
+import com.etheller.warsmash.WarsmashGdxMapScreen;
+import com.etheller.warsmash.datasources.DataSource;
 import org.lwjgl.BufferUtils;
 import org.lwjgl.openal.AL;
 import org.lwjgl.opengl.GL11;
@@ -45,17 +47,13 @@
 
 public class DesktopLauncher {
 	public static void main(final String[] arg) {
-		System.out.println("You ran it.");
+		System.out.println("You ran it in working directory " + System.getProperty("user.dir"));
 		final LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
 		config.useGL30 = true;
 		config.gles30ContextMajorVersion = 3;
 		config.gles30ContextMinorVersion = 3;
 //		config.samples = 16;
 //		config.vSyncEnabled = false;
-		config.addIcon("resources/Icon16.png", Files.FileType.Internal);
-		config.addIcon("resources/Icon32.png", Files.FileType.Internal);
-		config.addIcon("resources/Icon64.png", Files.FileType.Internal);
-		config.addIcon("resources/Icon128.png", Files.FileType.Internal);
 //		config.foregroundFPS = 0;
 //		config.backgroundFPS = 0;
 		final DisplayMode desktopDisplayMode = LwjglApplicationConfiguration.getDesktopDisplayMode();
@@ -100,7 +98,26 @@ else if ((arg.length > (argIndex + 1)) && "-ini".equals(arg[argIndex])) {
 		}
 		loadExtensions();
 		final DataTable warsmashIni = loadWarsmashIni(iniPath);
+
+		// Load icons:
+		DataSource codebase = WarsmashGdxMapScreen.parseDataSources(warsmashIni);
+		try {
+			config.addIcon(codebase.getFile("resources/Icon16.png").getAbsolutePath(), Files.FileType.Internal);
+			config.addIcon(codebase.getFile("resources/Icon32.png").getAbsolutePath(), Files.FileType.Internal);
+			config.addIcon(codebase.getFile("resources/Icon64.png").getAbsolutePath(), Files.FileType.Internal);
+			config.addIcon(codebase.getFile("resources/Icon128.png").getAbsolutePath(), Files.FileType.Internal);
+		} catch (final IOException e) {
+			e.printStackTrace();
+		}
+
 		final Element emulatorConstants = warsmashIni.get("Emulator");
+
+		if (emulatorConstants == null) {
+			System.err.println("Missing entry \"Emulator\" in .ini file.");
+
+			return;
+		}
+
 		WarsmashConstants.loadConstants(emulatorConstants, warsmashIni);
 
 		if (fileToLoad != null) {