Fix Record lastVelocity calculation

Signed-off-by: yoyosource <yoyosource@nidido.de>

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

@@ -22,41 +22,21 @@ package de.steamwar.bausystem.features.tracer;
 import de.steamwar.bausystem.features.tracer.show.Record;
 import de.steamwar.bausystem.shared.Position;
 import lombok.Getter;
-import lombok.RequiredArgsConstructor;
 import org.bukkit.entity.TNTPrimed;
 import org.bukkit.util.Vector;
 
-import java.util.function.Supplier;
-
 @Getter
 public class TNTPosition extends Position {
 
-    @RequiredArgsConstructor
-    public static class CachingSupplier<T> implements Supplier<T> {
-
-        private final Supplier<T> supplier;
-        private boolean initialized;
-        private T value;
-
-        @Override
-        public T get() {
-            if (!initialized) {
-                value = supplier.get();
-                initialized = true;
-            }
-            return value;
-        }
-    }
-
     private final Record.TNTRecord record;
     private final int fuseTicks;
     private final Vector previousLocation;
     private final Vector velocity;
-    private final CachingSupplier<Vector> updateVelocity;
+    private final Vector updateVelocity;
     private final boolean source;
     private final boolean exploded;
 
-    public TNTPosition(Record.TNTRecord record, TNTPrimed entity, Vector previousLocation, Vector velocity, CachingSupplier<Vector> updateVelocity, boolean source, boolean exploded) {
+    public TNTPosition(Record.TNTRecord record, TNTPrimed entity, Vector previousLocation, Vector velocity, Vector updateVelocity, boolean source, boolean exploded) {
         super(entity.getLocation().toVector());
         this.record = record;
         this.fuseTicks = entity.getFuseTicks();
@@ -67,10 +47,6 @@ public class TNTPosition extends Position {
         this.exploded = exploded;
     }
 
-    public Vector getUpdateVelocity() {
-        return updateVelocity.get();
-    }
-
     @Override
     public String toString() {
         return "Position{" +

BauSystem_Main/src/de/steamwar/bausystem/features/tracer/show/Record.java

@@ -118,21 +118,11 @@ public class Record {
         private void add(TNTPrimed tntPrimed, boolean source, boolean exploded) {
             TNTPosition position;
             if (positions.isEmpty()) {
-                position = new TNTPosition(this, tntPrimed, null, tntPrimed.getVelocity(), new TNTPosition.CachingSupplier<>(() -> null), source, exploded);
+                position = new TNTPosition(this, tntPrimed, null, tntPrimed.getVelocity(), null, source, exploded);
             } else {
-                int currentSize = positions.size() + 1;
+                TNTPosition tntPosition = positions.get(positions.size() - 1);
-                TNTPosition.CachingSupplier<Vector> velocitySupplier = new TNTPosition.CachingSupplier<>(() -> {
+                Vector lastVelocity = tntPrimed.getLocation().toVector().clone().subtract(tntPosition.getLocation());
-                    Vector current = null;
+                position = new TNTPosition(this, tntPrimed, positions.get(positions.size() - 1).getLocation(), tntPrimed.getVelocity(), lastVelocity, source, exploded);
-                    for (int i = currentSize - 1; i >= 0; i--) {
-                        TNTPosition currentTNT = positions.get(i);
-                        if ((currentTNT.getVelocity().getX() == 0 || currentTNT.getVelocity().getZ() == 0) && current != null) {
-                            break;
-                        }
-                        current = currentTNT.getVelocity();
-                    }
-                    return current;
-                });
-                position = new TNTPosition(this, tntPrimed, positions.get(positions.size() - 1).getLocation(), tntPrimed.getVelocity(), velocitySupplier, source, exploded);
             }
             positions.add(position);
             TraceShowManager.show(region, position);