Added persistent message server function

core/src/mindustry/ui/fragments/HudFragment.java

@@ -43,6 +43,9 @@ public class HudFragment extends Fragment{
     private boolean shown = true;
     private float dsize = 47.2f;
 
+    private String hudText = "";
+    private boolean showHudText;
+
     private long lastToast;
 
     public void build(Group parent){
@@ -341,6 +344,19 @@ public class HudFragment extends Fragment{
             t.add("$saveload").style(Styles.outlineLabel);
         });
 
+        parent.fill(p -> {
+            p.top().table(Styles.black3, t -> t.margin(4).label(() -> hudText)
+            .style(Styles.outlineLabel)).padTop(10).visible(p.color.a >= 0.001f);
+            p.update(() -> {
+                p.color.a = Mathf.lerpDelta(p.color.a, Mathf.num(showHudText), 0.2f);
+                if(state.is(State.menu)){
+                    p.color.a = 0f;
+                    showHudText = false;
+                }
+            });
+            p.touchable(Touchable.disabled);
+        });
+
         blockfrag.build(parent);
     }
 
@@ -368,6 +384,15 @@ public class HudFragment extends Fragment{
         }
     }
 
+    public void setHudText(String text){
+        showHudText = true;
+        hudText = text;
+    }
+
+    public void toggleHudText(boolean shown){
+        showHudText = shown;
+    }
+
     private void scheduleToast(Runnable run){
         long duration = (int)(3.5 * 1000);
         long since = Time.timeSinceMillis(lastToast);