Add combat sign editing blocker

eternalcombat-plugin/src/main/java/com/eternalcode/combat/CombatPlugin.java

@@ -36,6 +36,7 @@
 import com.eternalcode.combat.fight.drop.impl.PercentDropModifier;
 import com.eternalcode.combat.fight.drop.impl.PlayersHealthDropModifier;
 import com.eternalcode.combat.fight.blocker.PlaceBlockBlocker;
+import com.eternalcode.combat.fight.blocker.SignEditingBlocker;
 import com.eternalcode.combat.fight.effect.FightEffectController;
 import com.eternalcode.combat.fight.effect.FightEffectService;
 import com.eternalcode.combat.fight.effect.FightEffectServiceImpl;
@@ -204,6 +205,7 @@ public void onEnable() {
             new RespawnAnchorListener(this, this.fightManager, pluginConfig),
             new FireworkController(this.fightManager, pluginConfig, noticeService),
             new InventoryContainersBlocker(this.fightManager, pluginConfig, noticeService),
+            new SignEditingBlocker(this.fightManager, pluginConfig),
             new CommandsBlocker(this.fightManager, noticeService, pluginConfig),
             new ElytraBlocker(this.fightManager, pluginConfig),
             new ElytraEquipBlocker(this.fightManager, noticeService, pluginConfig, server),

eternalcombat-plugin/src/main/java/com/eternalcode/combat/config/implementation/PluginConfig.java

@@ -127,6 +127,13 @@ public class PluginConfig extends OkaeriConfig {
     })
     public InventorySettings inventory = new InventorySettings();
 
+    @Comment({
+        " ",
+        "# Settings related to sign editing during combat.",
+        "# Created for sign traps where opening the sign editor can block ender pearl throws."
+    })
+    public SignEditingSettings signEditing = new SignEditingSettings();
+
     @Comment({
         " ",
         "# Settings related to placeholders used in the plugin.",

eternalcombat-plugin/src/main/java/com/eternalcode/combat/config/implementation/SignEditingSettings.java

@@ -0,0 +1,13 @@
+package com.eternalcode.combat.config.implementation;
+
+import eu.okaeri.configs.OkaeriConfig;
+import eu.okaeri.configs.annotation.Comment;
+
+public class SignEditingSettings extends OkaeriConfig {
+
+    @Comment({
+        "# Prevent players from editing signs during combat.",
+        "# Disabled by default; created for sign traps where sign editing blocks ender pearl throws."
+    })
+    public boolean disableSignEditingDuringCombat = false;
+}

eternalcombat-plugin/src/main/java/com/eternalcode/combat/fight/blocker/SignEditingBlocker.java

@@ -0,0 +1,63 @@
+package com.eternalcode.combat.fight.blocker;
+
+import com.eternalcode.combat.config.implementation.PluginConfig;
+import com.eternalcode.combat.fight.FightManager;
+import java.util.UUID;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Event.Result;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.inventory.ItemStack;
+
+public class SignEditingBlocker implements Listener {
+
+    private final FightManager fightManager;
+    private final PluginConfig config;
+
+    public SignEditingBlocker(FightManager fightManager, PluginConfig config) {
+        this.fightManager = fightManager;
+        this.config = config;
+    }
+
+    @EventHandler
+    void onInteract(PlayerInteractEvent event) {
+        if (!this.config.signEditing.disableSignEditingDuringCombat) {
+            return;
+        }
+
+        if (event.getAction() != Action.RIGHT_CLICK_BLOCK) {
+            return;
+        }
+
+        Block clickedBlock = event.getClickedBlock();
+        if (clickedBlock == null || !isSign(clickedBlock.getType())) {
+            return;
+        }
+
+        Player player = event.getPlayer();
+        UUID uniqueId = player.getUniqueId();
+
+        if (!this.fightManager.isInCombat(uniqueId)) {
+            return;
+        }
+
+        event.setUseInteractedBlock(Result.DENY);
+
+        ItemStack item = event.getItem();
+        if (item != null && isEnderPearl(item.getType())) {
+            event.setUseItemInHand(Result.ALLOW);
+        }
+    }
+
+    static boolean isSign(Material material) {
+        return material.name().endsWith("_SIGN");
+    }
+
+    static boolean isEnderPearl(Material material) {
+        return material == Material.ENDER_PEARL;
+    }
+}

eternalcombat-plugin/test/com/eternalcode/combat/config/implementation/SignEditingSettingsTest.java

@@ -0,0 +1,15 @@
+package com.eternalcode.combat.config.implementation;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+import org.junit.jupiter.api.Test;
+
+class SignEditingSettingsTest {
+
+    @Test
+    void shouldDisableSignEditingBlockerByDefault() {
+        SignEditingSettings signEditingSettings = new SignEditingSettings();
+
+        assertFalse(signEditingSettings.disableSignEditingDuringCombat);
+    }
+}

eternalcombat-plugin/test/com/eternalcode/combat/fight/blocker/SignEditingBlockerTest.java

@@ -0,0 +1,34 @@
+package com.eternalcode.combat.fight.blocker;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.bukkit.Material;
+import org.junit.jupiter.api.Test;
+
+class SignEditingBlockerTest {
+
+    @Test
+    void shouldRecognizeStandingSignMaterials() {
+        assertTrue(SignEditingBlocker.isSign(Material.OAK_SIGN));
+        assertTrue(SignEditingBlocker.isSign(Material.CRIMSON_SIGN));
+    }
+
+    @Test
+    void shouldRecognizeWallSignMaterials() {
+        assertTrue(SignEditingBlocker.isSign(Material.OAK_WALL_SIGN));
+        assertTrue(SignEditingBlocker.isSign(Material.WARPED_WALL_SIGN));
+    }
+
+    @Test
+    void shouldIgnoreNonSignMaterials() {
+        assertFalse(SignEditingBlocker.isSign(Material.CHEST));
+        assertFalse(SignEditingBlocker.isSign(Material.ENDER_PEARL));
+    }
+
+    @Test
+    void shouldRecognizeEnderPearlMaterial() {
+        assertTrue(SignEditingBlocker.isEnderPearl(Material.ENDER_PEARL));
+        assertFalse(SignEditingBlocker.isEnderPearl(Material.OAK_SIGN));
+    }
+}