Add ResourceLoader texture loading functionality and update DiceOS to use it

src/main/java/be/seeseemelk/diceos/system/DiceOS.java

@@ -18,6 +18,7 @@ import java.util.List;
 @Component
 @RequiredArgsConstructor
 public class DiceOS extends ApplicationAdapter {
+    private final ResourceLoader resourceLoader;
     private final DisplayService display;
     private final CursorService cursorService;
     private final List<OnStartup> startupTasks;
@@ -36,7 +37,7 @@ public class DiceOS extends ApplicationAdapter {
         log.info("DiceOS starting...");
         background = new Texture("src/main/resources/background.png");
         clouds = new Texture("src/main/resources/clouds.png");
-        border = new Texture("src/main/resources/border.png");
+        border = resourceLoader.loadTexture("system/border.png");
         loadMenubar();
 
         screenViewport = new ScreenViewport();
@@ -52,7 +53,7 @@ public class DiceOS extends ApplicationAdapter {
     }
 
     private void loadMenubar() {
-        var texture = new Texture("src/main/resources/menubar.png");
+        var texture = resourceLoader.loadTexture("system/menubar.png");
         menubar = new NinePatch(texture, 9, 9, 15, 1);
     }
 

src/main/java/be/seeseemelk/diceos/system/ResourceLoader.java

@@ -2,6 +2,7 @@ package be.seeseemelk.diceos.system;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Pixmap;
+import com.badlogic.gdx.graphics.Texture;
 import io.avaje.inject.Component;
 import lombok.RequiredArgsConstructor;
 
@@ -12,8 +13,13 @@ import java.util.Map;
 @Component
 public class ResourceLoader {
     private final Map<String, Pixmap> pixmaps = new HashMap<>();
+    private final Map<String, Texture> textures = new HashMap<>();
 
     public Pixmap loadPixmap(String path) {
         return pixmaps.computeIfAbsent(path, p -> new Pixmap(Gdx.files.internal(p)));
     }
+
+    public Texture loadTexture(String path) {
+        return textures.computeIfAbsent(path, p -> new Texture(Gdx.files.internal(p)));
+    }
 }