FightSystem_Main/src/de/steamwar/fightsystem/FightSystem.java

@@ -92,6 +92,7 @@ public class FightSystem extends JavaPlugin {
         new EnterHandler();
         new TechHider();
         new FightWorld();
+        new BlockFade();
 
         new WinconditionAllDead();
         new WinconditionCaptainDead();

FightSystem_Main/src/de/steamwar/fightsystem/listener/BlockFade.java

@@ -0,0 +1,24 @@
+package de.steamwar.fightsystem.listener;
+
+import de.steamwar.fightsystem.ArenaMode;
+import de.steamwar.fightsystem.states.FightState;
+import de.steamwar.fightsystem.states.StateDependentListener;
+import net.minecraft.server.v1_15_R1.Blocks;
+import org.bukkit.Material;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockFadeEvent;
+
+public class BlockFade implements Listener {
+
+    public BlockFade() {
+        new StateDependentListener(ArenaMode.All, FightState.All, this);
+    }
+
+    @EventHandler
+    public void blockFade(BlockFadeEvent event) {
+        if(!event.getBlock().getType().equals(Material.FIRE)) {
+            event.setCancelled(true);
+        }
+    }
+}