[editor only] Fix few crash with mini map

src/main/java/games/rednblack/editor/system/HyperLap2dRendererMiniMap.java

@@ -42,6 +42,7 @@ public class HyperLap2dRendererMiniMap extends HyperLap2dRenderer {
 
         minimapCamera.setToOrtho(true, bounds.width, bounds.height);
         minimapCamera.position.set(bounds.x + bounds.width / 2, bounds.y + bounds.height / 2,0);
+        if (bounds.width == 0 || bounds.height == 0) return null;
 
         Gdx.gl.glClearColor(0.318f, 0.318f, 0.318f, 1);
         frameBufferManager.createIfNotExists("minimap", (int) (bounds.width * pixelsPerWU), (int) (bounds.height * pixelsPerWU), false, hasStencilBuffer);

src/main/java/games/rednblack/editor/view/ui/dialog/MiniMapDialog.java

@@ -49,16 +49,19 @@ public class MiniMapDialog extends Table {
         setBackground(VisUI.getSkin().getDrawable("panel"));
     }
 
-    public void update() {
+    public boolean update() {
         Sandbox sandbox = Sandbox.getInstance();
         HyperLap2dRendererMiniMap rendererMiniMap = sandbox.getEngine().getSystem(HyperLap2dRendererMiniMap.class);
 
         Texture texture = rendererMiniMap.getMiniMapTexture(sandbox.getRootEntity());
+        if (texture == null) return false;
+
         region.setRegion(texture);
         drawable.setRegion(region);
         miniMap.setScaling(Scaling.contain);
         miniMap.setDrawable(drawable);
 
         miniMapBounds = rendererMiniMap.getMiniMapBounds();
+        return true;
     }
 }

src/main/java/games/rednblack/editor/view/ui/dialog/MiniMapDialogMediator.java

@@ -1,6 +1,7 @@
 package games.rednblack.editor.view.ui.dialog;
 
 import com.badlogic.gdx.utils.Align;
+import games.rednblack.editor.proxy.ProjectManager;
 import games.rednblack.editor.view.stage.Sandbox;
 import games.rednblack.editor.view.stage.UIStage;
 import games.rednblack.h2d.common.MsgAPI;
@@ -12,13 +13,15 @@ public class MiniMapDialogMediator extends Mediator<MiniMapDialog> {
     private static final String TAG = MiniMapDialogMediator.class.getCanonicalName();
     private static final String NAME = TAG;
 
+    private boolean projectOpened = false;
+
     public MiniMapDialogMediator() {
         super(NAME, new MiniMapDialog());
     }
 
     @Override
     public void listNotificationInterests(Interests interests) {
-        interests.add(MsgAPI.SHOW_MINI_MAP, MsgAPI.HIDE_MINI_MAP);
+        interests.add(MsgAPI.SHOW_MINI_MAP, MsgAPI.HIDE_MINI_MAP, ProjectManager.PROJECT_OPENED);
     }
 
     @Override
@@ -28,14 +31,20 @@ public class MiniMapDialogMediator extends Mediator<MiniMapDialog> {
         UIStage uiStage = sandbox.getUIStage();
 
         switch (notification.getName()) {
+            case ProjectManager.PROJECT_OPENED:
+                projectOpened = true;
+                break;
             case MsgAPI.SHOW_MINI_MAP:
+                if (!projectOpened) break;
                 viewComponent.setSize(uiStage.getWidth() * 0.6f, uiStage.getHeight() * 0.6f);
                 viewComponent.setOrigin(Align.center);
-                viewComponent.update();
+                if (viewComponent.update()) {
                     uiStage.addActor(viewComponent);
                     viewComponent.setPosition((uiStage.getWidth() - viewComponent.getWidth()) / 2, (uiStage.getHeight() - viewComponent.getHeight()) / 2);
+                }
                 break;
             case MsgAPI.HIDE_MINI_MAP:
+                if (!projectOpened) break;
                 viewComponent.remove();
                 break;
         }