Resolve "Login screen setup (without backend)"

Closes #19 (closed)

frontend/core/src/com/game/tankwars/ResourceManager.java

@@ -26,6 +26,7 @@ public class ResourceManager {
 
         // Add textures used in the game here
         gameTextures = new HashMap<>();
+        gameTextures.put("tank1", "tank-khaki.png");
 
         // Add textures used for menus here
         menuTextures = new HashMap<>();
@@ -58,7 +59,8 @@ public class ResourceManager {
     public void loadMenuTextures() {
         for (String internalPath : menuTextures.keySet()) {
             try {
-                manager.load(menuTextures.get(internalPath), Texture.class);
+                if (!manager.isLoaded(menuTextures.get(internalPath)))
+                    manager.load(menuTextures.get(internalPath), Texture.class);
             } catch (GdxRuntimeException error) {
                 System.out.println(internalPath);
             }
@@ -68,7 +70,8 @@ public class ResourceManager {
     public void GameMenuTextures() {
         for (String internalPath : gameTextures.keySet()) {
             try {
-                manager.load(gameTextures.get(internalPath), Texture.class);
+                if (!manager.isLoaded(gameTextures.get(internalPath)))
+                    manager.load(gameTextures.get(internalPath), Texture.class);
             } catch (GdxRuntimeException error) {
                 System.out.println(internalPath);
             }
@@ -84,16 +87,18 @@ public class ResourceManager {
      * and not the filename itself
      */
     public void loadFonts() {
-        FreetypeFontLoader.FreeTypeFontLoaderParameter regularFont = new FreetypeFontLoader.FreeTypeFontLoaderParameter();
-
-        regularFont.fontFileName = fonts.get("menu-regular");
-        regularFont.fontParameters.size = 16;
-        manager.load("menu-regular.ttf", BitmapFont.class, regularFont);
-
-        FreetypeFontLoader.FreeTypeFontLoaderParameter bigFont = new FreetypeFontLoader.FreeTypeFontLoaderParameter();
-        bigFont.fontFileName = fonts.get("menu-big");
-        bigFont.fontParameters.size = 32;
-        manager.load("menu-big.ttf", BitmapFont.class, bigFont);
+        if (!manager.isLoaded("menu-regular.ttf")) {
+            FreetypeFontLoader.FreeTypeFontLoaderParameter regularFont = new FreetypeFontLoader.FreeTypeFontLoaderParameter();
+            regularFont.fontFileName = fonts.get("menu-regular");
+            regularFont.fontParameters.size = 16;
+            manager.load("menu-regular.ttf", BitmapFont.class, regularFont);
+        }
+        if (!manager.isLoaded("menu-big.ttf")) {
+            FreetypeFontLoader.FreeTypeFontLoaderParameter bigFont = new FreetypeFontLoader.FreeTypeFontLoaderParameter();
+            bigFont.fontFileName = fonts.get("menu-big");
+            bigFont.fontParameters.size = 32;
+            manager.load("menu-big.ttf", BitmapFont.class, bigFont);
+        }
     }
 
     public void finishLoading() {
@@ -143,8 +148,8 @@ public class ResourceManager {
         return null;
     }
 
-    public void clear() {
-        manager.clear();
+    public void dispose() {
+        manager.dispose();
     }
 
 }