Fix exceptions on EntityCombustByEntityEvent, EntityDamageByEntityEvent, PartyAutoKickTask if parties are disabled (#4976)

* Only run EntityListener#checkParties on EntityCombustByEntityEvent if Parties are enabled

* Only run PartyAutoKickTask Task if Parties are enabled

* Only run EntityListener#checkParties on EntityDamageByEntityEvent if Parties are enabled

* Check if Parties are enabled before running inSameParty in CombatUtils#processCombatXP

---------

Co-authored-by: Dieu <info@l4b.org>

src/main/java/com/gmail/nossr50/listeners/EntityListener.java

@@ -259,7 +259,7 @@ public class EntityListener implements Listener {
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onEntityCombustByEntityEvent(EntityCombustByEntityEvent event) {
         //Prevent players from setting fire to each other if they are in the same party
-        if(event.getEntity() instanceof Player defender) {
+        if(mcMMO.p.getPartyConfig().isPartyEnabled() && event.getEntity() instanceof Player defender) {
 
             if(event.getCombuster() instanceof Projectile projectile) {
                 if(projectile.getShooter() instanceof Player attacker) {
@@ -365,7 +365,7 @@ public class EntityListener implements Listener {
             if(attacker instanceof Projectile projectile) {
                 if(projectile.getShooter() instanceof Player attackingPlayer && !attackingPlayer.equals(defendingPlayer)) {
                     //Check for party friendly fire and cancel the event
-                    if (checkParties(event, defendingPlayer, attackingPlayer)) {
+                    if (mcMMO.p.getPartyConfig().isPartyEnabled() && checkParties(event, defendingPlayer, attackingPlayer)) {
                         return;
                     }
                 }
@@ -383,7 +383,7 @@ public class EntityListener implements Listener {
                     }
                 }
             } else if (attacker instanceof Player attackingPlayer){
-                if (checkParties(event, defendingPlayer, attackingPlayer))
+                if (mcMMO.p.getPartyConfig().isPartyEnabled() && checkParties(event, defendingPlayer, attackingPlayer))
                     return;
             }
         }

src/main/java/com/gmail/nossr50/mcMMO.java

@@ -671,13 +671,14 @@ public class mcMMO extends JavaPlugin {
         }
 
         // Automatically remove old members from parties
-        long kickIntervalTicks = generalConfig.getAutoPartyKickInterval() * 60L * 60L * Misc.TICK_CONVERSION_FACTOR;
+        if(partyConfig.isPartyEnabled()) {
+            long kickIntervalTicks = generalConfig.getAutoPartyKickInterval() * 60L * 60L * Misc.TICK_CONVERSION_FACTOR;
 
-        if (kickIntervalTicks == 0) {
-            getFoliaLib().getImpl().runLater(new PartyAutoKickTask(), 2 * Misc.TICK_CONVERSION_FACTOR); // Start 2 seconds after startup.
-        }
-        else if (kickIntervalTicks > 0) {
-            getFoliaLib().getImpl().runTimer(new PartyAutoKickTask(), kickIntervalTicks, kickIntervalTicks);
+            if (kickIntervalTicks == 0) {
+                getFoliaLib().getImpl().runLater(new PartyAutoKickTask(), 2 * Misc.TICK_CONVERSION_FACTOR); // Start 2 seconds after startup.
+            } else if (kickIntervalTicks > 0) {
+                getFoliaLib().getImpl().runTimer(new PartyAutoKickTask(), kickIntervalTicks, kickIntervalTicks);
+            }
         }
 
         // Update power level tag scoreboards

src/main/java/com/gmail/nossr50/util/skills/CombatUtils.java

@@ -741,7 +741,8 @@ public final class CombatUtils {
         XPGainReason xpGainReason;
 
         if (target instanceof Player defender) {
-            if (!ExperienceConfig.getInstance().getExperienceGainsPlayerVersusPlayerEnabled() || mcMMO.p.getPartyManager().inSameParty(mcMMOPlayer.getPlayer(), (Player) target)) {
+            if (!ExperienceConfig.getInstance().getExperienceGainsPlayerVersusPlayerEnabled() ||
+                    (mcMMO.p.getPartyConfig().isPartyEnabled() && mcMMO.p.getPartyManager().inSameParty(mcMMOPlayer.getPlayer(), (Player) target))) {
                 return;
             }