Merge pull request 'Fix TablistManager' (#283) from FixTablist into master

Reviewed-on: SteamWar/BungeeCore#283
Reviewed-by: Lixfel <lixfel@steamwar.de>

src/de/steamwar/bungeecore/listeners/TablistManager.java

@@ -103,7 +103,7 @@ public class TablistManager extends BasicListener {
         if(bau.size() > 0)
             tablist.addSubTablist(bau);
 
-        size = (int) Math.ceil(tablist.size() / 20.0);
+        size = (int) Math.ceil((tablist.size() - 1) / 20.0);
         tablists.values().forEach(Tablist::refresh);
         seconds++;
     }
@@ -197,10 +197,11 @@ public class TablistManager extends BasicListener {
 
         @Override
         public int slimSize(ProxiedPlayer viewer) {
-            int size = subTablists.stream().mapToInt(tPart -> viewer == null ? tPart.size() : tPart.slimSize(viewer)).sum();
-            if(withHeaders)
-                size += subTablists.size() * 2;
-            return size;
+            return subTablists.stream().mapToInt(tPart -> viewer == null ? tPart.size() : tPart.slimSize(viewer)).map(size -> {
+                size += withHeaders ? 1 : 0; // Space for header
+                size += withHeaders && size > 1 ? 1 : 0; // Space for footer
+                return size;
+            }).sum();
         }
 
         @Override
@@ -210,8 +211,10 @@ public class TablistManager extends BasicListener {
 
         @Override
         public void print(Tablist viewer, boolean slim) {
-            subTablists.forEach(tPart -> {
-                if(withHeaders)
+            for (int i = 0; i < subTablists.size(); i++) {
+                TablistPart tPart = subTablists.get(i);
+                boolean withoutFooter = i == subTablists.size() - 1;
+                if (withHeaders) {
                     if (slim) {
                         int slimSize = tPart.slimSize(viewer.player);
                         int size = tPart.size();
@@ -219,16 +222,19 @@ public class TablistManager extends BasicListener {
                             viewer.setSlot(gray, "§7§l" + tPart.name(), 1000);
                         } else if (slimSize == 0) {
                             viewer.setSlot(gray, "§7§l" + tPart.name() + " §8(§7" + size + "§8)", 1000);
+                            withoutFooter = true;
                         } else {
                             viewer.setSlot(gray, "§7§l" + tPart.name() + " §8(§7+" + (size - slimSize) + "§8)", 1000);
                         }
                     } else {
                         viewer.setSlot(gray, "§7§l" + tPart.name(), 1000);
                     }
+                }
                 tPart.print(viewer, slim);
-                if(withHeaders)
+                if (withHeaders && !withoutFooter) {
                     viewer.setSlot(darkGray, "", 1000);
-            });
+                }
+            }
         }
     }