Add PropertyUpdateResult enum, adding possible 'cancel' action to prevent value write

src/main/java/com/moulberry/axiom/WorldPropertiesExample.java

@@ -3,6 +3,7 @@ package com.moulberry.axiom;
 import com.moulberry.axiom.event.AxiomCreateWorldPropertiesEvent;
 import com.moulberry.axiom.world_properties.WorldPropertyCategory;
 import com.moulberry.axiom.world_properties.WorldPropertyWidgetType;
+import com.moulberry.axiom.world_properties.server.PropertyUpdateResult;
 import com.moulberry.axiom.world_properties.server.ServerWorldProperty;
 import net.kyori.adventure.text.Component;
 import org.bukkit.NamespacedKey;
@@ -19,7 +20,7 @@ public class WorldPropertiesExample implements Listener {
         false, WorldPropertyWidgetType.CHECKBOX, world -> false,
         (player, world, bool) -> {
             world.sendMessage(Component.text("Checkbox: " + bool)); // Do something with input
-            return true; // true to sync with client
+            return PropertyUpdateResult.UPDATE_AND_SYNC; // sync with client
         }
     );
 
@@ -30,7 +31,7 @@ public class WorldPropertiesExample implements Listener {
         world -> 4,
         (player, world, integer) -> {
             world.sendMessage(Component.text("Slider: " + integer)); // Do something with input
-            return true; // true to sync with client
+            return PropertyUpdateResult.UPDATE_AND_SYNC; // sync with client
         }
     );
 
@@ -41,7 +42,7 @@ public class WorldPropertiesExample implements Listener {
         world -> "Hello",
         (player, world, string) -> {
             world.sendMessage(Component.text("Textbox: " + string)); // Do something with input
-            return true; // true to sync with client
+            return PropertyUpdateResult.UPDATE_AND_SYNC; // sync with client
         }
     );
 
@@ -52,7 +53,7 @@ public class WorldPropertiesExample implements Listener {
         world -> null,
         (player, world, unit) -> {
             world.sendMessage(Component.text("Button pressed")); // Do something with input
-            return true; // true to sync with client
+            return PropertyUpdateResult.UPDATE_AND_SYNC; // sync with client
         }
     );
 

src/main/java/com/moulberry/axiom/packet/SetWorldPropertyListener.java

@@ -24,30 +24,39 @@ public class SetWorldPropertyListener implements PluginMessageListener {
             return;
         }
 
-        // Call modify world
-        if (!this.plugin.canModifyWorld(player, player.getWorld())) {
-            return;
-        }
-
-        // Don't allow on plot worlds
-        if (PlotSquaredIntegration.isPlotWorld(player.getWorld())) {
-            return;
-        }
-
         FriendlyByteBuf friendlyByteBuf = new FriendlyByteBuf(Unpooled.wrappedBuffer(message));
         ResourceLocation id = friendlyByteBuf.readResourceLocation();
         int type = friendlyByteBuf.readVarInt();
         byte[] data = friendlyByteBuf.readByteArray();
         int updateId = friendlyByteBuf.readVarInt();
 
+        // Call modify world
+        if (!this.plugin.canModifyWorld(player, player.getWorld())) {
+            sendAck(player, updateId);
+            return;
+        }
+
+        // Don't allow on plot worlds
+        if (PlotSquaredIntegration.isPlotWorld(player.getWorld())) {
+            sendAck(player, updateId);
+            return;
+        }
+
         ServerWorldPropertiesRegistry registry = AxiomPaper.PLUGIN.getOrCreateWorldProperties(player.getWorld());
-        if (registry == null) return;
+        if (registry == null) {
+            sendAck(player, updateId);
+            return;
+        }
 
         ServerWorldPropertyHolder<?> property = registry.getById(id);
         if (property != null && property.getType().getTypeId() == type) {
             property.update(player, player.getWorld(), data);
         }
 
+        sendAck(player, updateId);
+    }
+
+    private void sendAck(Player player, int updateId) {
         FriendlyByteBuf buf = new FriendlyByteBuf(Unpooled.buffer());
         buf.writeVarInt(updateId);
 

src/main/java/com/moulberry/axiom/world_properties/PropertyUpdateHandler.java

@@ -1,5 +1,6 @@
 package com.moulberry.axiom.world_properties;
 
+import com.moulberry.axiom.world_properties.server.PropertyUpdateResult;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
 
@@ -10,8 +11,8 @@ public interface PropertyUpdateHandler<T> {
      * @param player the player that updated the property
      * @param world the world for which the property has been updated
      * @param value the new value of the property
-     * @return whether to sync the value back to the client
+     * @return {@link PropertyUpdateResult}
      */
-    boolean update(Player player, World world, T value);
+    PropertyUpdateResult update(Player player, World world, T value);
 
 }

src/main/java/com/moulberry/axiom/world_properties/server/PropertyUpdateResult.java

@@ -0,0 +1,25 @@
+package com.moulberry.axiom.world_properties.server;
+
+public enum PropertyUpdateResult {
+
+    UPDATE_AND_SYNC(true, true),
+    UPDATE_WITHOUT_SYNC(true, false),
+    CANCEL(false, false);
+
+    private final boolean update;
+    private final boolean sync;
+
+    PropertyUpdateResult(boolean update, boolean sync) {
+        this.update = update;
+        this.sync = sync;
+    }
+
+    public boolean isUpdate() {
+        return this.update;
+    }
+
+    public boolean isSync() {
+        return this.sync;
+    }
+
+}

src/main/java/com/moulberry/axiom/world_properties/server/ServerWorldPropertiesRegistry.java

@@ -67,16 +67,19 @@ public class ServerWorldPropertiesRegistry {
     private static final ServerWorldProperty<Integer> TIME = new ServerWorldProperty<>(
         new NamespacedKey("axiom", "time"),
         "axiom.editorui.window.world_properties.time",
-        true, WorldPropertyWidgetType.TIME, world -> 0, (player, w, integer) -> false
+        true, WorldPropertyWidgetType.TIME, world -> 0,
+        (player, w, integer) -> PropertyUpdateResult.UPDATE_WITHOUT_SYNC
     );
 
     public static final ServerWorldProperty<Boolean> PAUSE_WEATHER = new ServerWorldProperty<>(
-            new NamespacedKey("axiom", "pause_weather"),
+        new NamespacedKey("axiom", "pause_weather"),
-            "axiom.editorui.window.world_properties.pause_weather",
+        "axiom.editorui.window.world_properties.pause_weather",
-            true, WorldPropertyWidgetType.CHECKBOX, world -> !world.getGameRuleValue(GameRule.DO_WEATHER_CYCLE), (player, world, bool) -> {
+        true, WorldPropertyWidgetType.CHECKBOX, world -> !world.getGameRuleValue(GameRule.DO_WEATHER_CYCLE),
-        world.setGameRule(GameRule.DO_WEATHER_CYCLE, !bool);
+        (player, world, bool) -> {
-        return false;
+            world.setGameRule(GameRule.DO_WEATHER_CYCLE, !bool);
-    });
+            return PropertyUpdateResult.UPDATE_WITHOUT_SYNC;
+        }
+    );
 
     private static final ServerWorldProperty<Integer> WEATHER_TYPE = new ServerWorldProperty<>(
             new NamespacedKey("axiom", "weather_type"),
@@ -92,7 +95,7 @@ public class ServerWorldPropertiesRegistry {
         } else if (index == 2) {
             serverLevel.setWeatherParameters(0, ServerLevel.THUNDER_DURATION.sample(serverLevel.random), true, true);
         }
-        return false;
+        return PropertyUpdateResult.UPDATE_WITHOUT_SYNC;
     });
 
     public void registerDefault() {

src/main/java/com/moulberry/axiom/world_properties/server/ServerWorldProperty.java

@@ -26,7 +26,7 @@ public class ServerWorldProperty<T> extends ServerWorldPropertyBase<T> {
     }
 
     @Override
-    public boolean handleUpdateProperty(Player player, World world, T value) {
+    public PropertyUpdateResult handleUpdateProperty(Player player, World world, T value) {
         return this.handler.update(player, world, value);
     }
 

src/main/java/com/moulberry/axiom/world_properties/server/ServerWorldPropertyBase.java

@@ -25,7 +25,7 @@ public abstract class ServerWorldPropertyBase<T> {
 
     public abstract T getDefaultValue(World world);
 
-    public abstract boolean handleUpdateProperty(Player player, World world, T value);
+    public abstract PropertyUpdateResult handleUpdateProperty(Player player, World world, T value);
 
     public ResourceLocation getId() {
         return this.id;

src/main/java/com/moulberry/axiom/world_properties/server/ServerWorldPropertyHolder.java

@@ -35,8 +35,12 @@ public class ServerWorldPropertyHolder<T> {
     }
 
     public void update(Player player, World world, byte[] data) {
-        this.value = this.property.widget.dataType().deserialize(data);
+        PropertyUpdateResult result = this.property.handleUpdateProperty(player, world, this.value);
-        if (this.property.handleUpdateProperty(player, world, this.value)) {
+
+        if (result.isUpdate()) {
+            this.value = this.property.widget.dataType().deserialize(data);
+        }
+        if (result.isSync()) {
             this.sync(world);
         }
     }