BauSystem_Main/src/de/steamwar/bausystem/features/tracer/Trace.java

@@ -158,7 +158,7 @@ public class Trace {
 
         //Apply filters
         for(ViewFlag flag : flags)
-            workingRecords = flag.filter.apply(workingRecords);
+            workingRecords = flag.filter(workingRecords);
 
         //Bundle records at unique positions
         List<List<TNTRecord>> bundles = bundleRecords(workingRecords, bundleFilter);
@@ -171,7 +171,7 @@ public class Trace {
 
         //Apply modifiers
         for(ViewFlag flag : flags)
-            flag.modify.accept(server, entities);
+            flag.modify(server, entities);
     }
 
     /** Bundles the passed TNTRecords based on whether they are at the same location

BauSystem_Main/src/de/steamwar/bausystem/features/tracer/rendering/ViewFlag.java

@@ -27,18 +27,21 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.function.BiConsumer;
 import java.util.function.UnaryOperator;
+import java.util.stream.Collectors;
 
 public abstract class ViewFlag {
 
-    /**
-     * The filtering part of the flag
-     */
-    public final UnaryOperator<List<TNTRecord>> filter;
+    public static ViewFlag EXPLOSION = new ViewFlag(true,"explosion") {
+        @Override
+        public List<TNTRecord> filter(List<TNTRecord> records) {
+            return records.stream()
+                    .filter(TNTRecord::isExplosion)
+                    .collect(Collectors.toList());
+        }
 
-    /**
-     * The modifieng part of the flag
-     */
-    public final BiConsumer<REntityServer, List<TraceEntity>> modify;
+        @Override
+        public void modify(REntityServer server, List<TraceEntity> entities) {}
+    };
 
     /**
      * Name of the flag
@@ -50,14 +53,29 @@ public abstract class ViewFlag {
      */
     public final String[] aliases;
 
+    /**
+     * Static registry of static flags
+     */
     public static final List<ViewFlag> flags = new ArrayList<>();
 
-     public ViewFlag(UnaryOperator<List<TNTRecord>> filter, BiConsumer<REntityServer,List<TraceEntity>> modify, boolean isStatic, String name, String... aliases) {
-        this.filter = filter;
-        this.modify = modify;
+     public ViewFlag(boolean isStatic, String name, String... aliases) {
         this.name = name;
         this.aliases = aliases;
         if(isStatic)
             flags.add(this);
     }
+
+    /** Filters the given records for a given condition
+     *
+     * @param records Records to be filtered
+     * @return Filtered records
+     */
+    public abstract List<TNTRecord> filter (List<TNTRecord> records);
+
+    /** Modifies the trace rendering
+     *
+     * @param server the server the trace is rendered on
+     * @param entities the entities representing tnts
+     */
+    public abstract void modify (REntityServer server, List<TraceEntity> entities);
 }