Crossbow multi-shot arrows that bounce are no longer pickup-able

pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.gmail.nossr50.mcMMO</groupId>
     <artifactId>mcMMO</artifactId>
-    <version>2.2.000-BETA-07-SNAPSHOT</version>
+    <version>2.2.000-BETA-08-SNAPSHOT</version>
     <name>mcMMO</name>
     <url>https://github.com/mcMMO-Dev/mcMMO</url>
     <scm>

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

@@ -152,17 +152,20 @@ public class EntityListener implements Listener {
                     return;
             }
 
-            Projectile projectile = event.getEntity();
+            if(event.getEntity() instanceof Arrow arrow) {
-            EntityType entityType = projectile.getType();
+                // Delayed metadata cleanup in case other cleanup hooks fail
+                CombatUtils.delayArrowMetaCleanup(arrow);
 
-            if(projectile instanceof Arrow arrow) {
+                // If fired from an item with multi-shot, we need to track
-                CombatUtils.delayArrowMetaCleanup(arrow); //Cleans up metadata 1 minute from now in case other collection methods fall through
+                if(ItemUtils.doesPlayerHaveEnchantmentInHands(player, "multishot")) {
+                    arrow.setMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW, MetadataConstants.MCMMO_METADATA_VALUE);
+                }
 
-                if(!projectile.hasMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE))
+                if(!arrow.hasMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE))
-                    projectile.setMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE, new FixedMetadataValue(pluginRef, 1.0));
+                    arrow.setMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE, new FixedMetadataValue(pluginRef, 1.0));
 
-                if(!projectile.hasMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE))
+                if(!arrow.hasMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE))
-                    projectile.setMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE, new FixedMetadataValue(pluginRef, arrow.getLocation()));
+                    arrow.setMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE, new FixedMetadataValue(pluginRef, arrow.getLocation()));
 
                 //Check both hands
                 if(ItemUtils.doesPlayerHaveEnchantmentInHands(player, "piercing")) {
@@ -170,7 +173,7 @@ public class EntityListener implements Listener {
                 }
 
                 if (ProbabilityUtil.isSkillRNGSuccessful(SubSkillType.ARCHERY_ARROW_RETRIEVAL, player)) {
-                    projectile.setMetadata(MetadataConstants.METADATA_KEY_TRACKED_ARROW, MetadataConstants.MCMMO_METADATA_VALUE);
+                    arrow.setMetadata(MetadataConstants.METADATA_KEY_TRACKED_ARROW, MetadataConstants.MCMMO_METADATA_VALUE);
                 }
             }
         }

src/main/java/com/gmail/nossr50/skills/crossbows/Crossbows.java

@@ -1,6 +1,7 @@
 package com.gmail.nossr50.skills.crossbows;
 
 import com.gmail.nossr50.datatypes.player.McMMOPlayer;
+import com.gmail.nossr50.util.MetadataConstants;
 import com.gmail.nossr50.util.player.UserManager;
 import org.bukkit.entity.Arrow;
 import org.bukkit.entity.Player;
@@ -13,17 +14,29 @@ import static com.gmail.nossr50.util.skills.ProjectileUtils.getNormal;
  * Util class for crossbows.
  */
 public class Crossbows {
+    /**
+     * Process events that may happen from a crossbow hitting an entity.
+     *
+     * @param event      the projectile hit event
+     * @param pluginRef  the plugin ref
+     * @param arrow      the arrow
+     */
     public static void processCrossbows(ProjectileHitEvent event, Plugin pluginRef, Arrow arrow) {
-        if(event.getHitBlock() != null && event.getHitBlockFace() != null) {
         if (arrow.getShooter() instanceof Player) {
             McMMOPlayer mmoPlayer = UserManager.getPlayer((Player) arrow.getShooter());
-                if (mmoPlayer != null) {
+            if (mmoPlayer == null)
+                return;
+
+            processTrickShot(event, pluginRef, arrow, mmoPlayer);
+        }
+    }
+
+    private static void processTrickShot(ProjectileHitEvent event, Plugin pluginRef, Arrow arrow, McMMOPlayer mmoPlayer) {
+        if(event.getHitBlock() != null && event.getHitBlockFace() != null) {
             mmoPlayer.getCrossbowsManager().handleRicochet(
                     pluginRef,
                     arrow,
                     getNormal(event.getHitBlockFace()));
         }
     }
-        }
-    }
 }

src/main/java/com/gmail/nossr50/skills/crossbows/CrossbowsManager.java

@@ -8,8 +8,10 @@ import com.gmail.nossr50.skills.SkillManager;
 import com.gmail.nossr50.util.MetadataConstants;
 import com.gmail.nossr50.util.Permissions;
 import com.gmail.nossr50.util.random.ProbabilityUtil;
+import com.gmail.nossr50.util.skills.ProjectileUtils;
 import com.gmail.nossr50.util.skills.RankUtils;
 import org.bukkit.Location;
+import org.bukkit.entity.AbstractArrow;
 import org.bukkit.entity.Arrow;
 import org.bukkit.entity.Player;
 import org.bukkit.metadata.FixedMetadataValue;
@@ -18,6 +20,8 @@ import org.bukkit.projectiles.ProjectileSource;
 import org.bukkit.util.Vector;
 import org.jetbrains.annotations.NotNull;
 
+import static com.gmail.nossr50.util.skills.CombatUtils.delayArrowMetaCleanup;
+
 public class CrossbowsManager extends SkillManager {
     public CrossbowsManager(McMMOPlayer mmoPlayer) {
         super(mmoPlayer, PrimarySkillType.CROSSBOWS);
@@ -52,7 +56,6 @@ public class CrossbowsManager extends SkillManager {
         final Vector reflectedDirection = arrowInBlockVector.subtract(normal.multiply(2 * arrowInBlockVector.dot(normal)));
         final Vector inverseNormal = normal.multiply(-1);
 
-
         // check the angle of the arrow against the inverse normal to see if the angle was too shallow
         // only checks angle on the first bounce
         if (bounceCount == 0 && arrowInBlockVector.angle(inverseNormal) < Math.PI / 4) {
@@ -60,15 +63,24 @@ public class CrossbowsManager extends SkillManager {
         }
 
         // Spawn new arrow with the reflected direction
-        Arrow arrow = originalArrow.getWorld().spawnArrow(origin,
+        Arrow spawnedArrow = originalArrow.getWorld().spawnArrow(origin, reflectedDirection, 1, 1);
-                reflectedDirection, 1, 1);
+        ProjectileUtils.copyArrowMetadata(pluginRef, originalArrow, spawnedArrow);
-        arrow.setShooter(originalArrowShooter);
+        originalArrow.remove();
-        arrow.setMetadata(MetadataConstants.METADATA_KEY_BOUNCE_COUNT,
+        // copy metadata from old arrow
+        spawnedArrow.setShooter(originalArrowShooter);
+        spawnedArrow.setMetadata(MetadataConstants.METADATA_KEY_BOUNCE_COUNT,
                 new FixedMetadataValue(pluginRef, bounceCount + 1));
-        arrow.setMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW,
+        spawnedArrow.setMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW,
                 new FixedMetadataValue(pluginRef, originalArrowShooter));
 
-        originalArrow.remove();
+        // Don't allow multi-shot or infinite arrows to be picked up
+        if (spawnedArrow.hasMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW)
+                || spawnedArrow.hasMetadata(MetadataConstants.METADATA_KEY_INF_ARROW)) {
+            spawnedArrow.setPickupStatus(AbstractArrow.PickupStatus.DISALLOWED);
+        }
+
+        // Schedule cleanup of metadata in case metadata cleanup fails
+        delayArrowMetaCleanup(spawnedArrow);
     }
 
     public int getTrickShotMaxBounceCount() {

src/main/java/com/gmail/nossr50/util/MetadataConstants.java

@@ -15,6 +15,7 @@ public class MetadataConstants {
      */
     public static final @NotNull String METADATA_KEY_REPLANT = "mcMMO: Recently Replanted";
     public static final @NotNull String METADATA_KEY_SPAWNED_ARROW = "mcMMO: Spawned Arrow";
+    public static final @NotNull String METADATA_KEY_MULTI_SHOT_ARROW = "mcMMO: Multi-shot Arrow";
     public static final @NotNull String METADATA_KEY_BOUNCE_COUNT = "mcMMO: Arrow Bounce Count";
     public static final @NotNull String METADATA_KEY_EXPLOSION_FROM_RUPTURE = "mcMMO: Rupture Explosion";
     public static final @NotNull String METADATA_KEY_FISH_HOOK_REF = "mcMMO: Fish Hook Tracker";

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

@@ -4,6 +4,8 @@ import com.gmail.nossr50.mcMMO;
 import com.gmail.nossr50.util.MetadataConstants;
 import org.bukkit.block.BlockFace;
 import org.bukkit.entity.Arrow;
+import org.bukkit.metadata.FixedMetadataValue;
+import org.bukkit.plugin.Plugin;
 import org.bukkit.util.Vector;
 import org.jetbrains.annotations.NotNull;
 
@@ -42,5 +44,37 @@ public class ProjectileUtils {
         if(arrow.hasMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW)) {
             arrow.removeMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW, mcMMO.p);
         }
+
+        if(arrow.hasMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW)) {
+            arrow.removeMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW, mcMMO.p);
+        }
+    }
+
+    public static void copyArrowMetadata(@NotNull Plugin pluginRef, @NotNull Arrow arrowToCopy, @NotNull Arrow newArrow) {
+        if(arrowToCopy.hasMetadata(MetadataConstants.METADATA_KEY_INF_ARROW)) {
+            newArrow.setMetadata(MetadataConstants.METADATA_KEY_INF_ARROW,
+                    arrowToCopy.getMetadata(MetadataConstants.METADATA_KEY_INF_ARROW).get(0));
+        }
+
+        if(arrowToCopy.hasMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE)) {
+            newArrow.setMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE,
+                    new FixedMetadataValue(pluginRef,
+                            arrowToCopy.getMetadata(MetadataConstants.METADATA_KEY_BOW_FORCE).get(0).asDouble()));
+        }
+
+        if(arrowToCopy.hasMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE)) {
+            newArrow.setMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE,
+                    arrowToCopy.getMetadata(MetadataConstants.METADATA_KEY_ARROW_DISTANCE).get(0));
+        }
+
+        if(arrowToCopy.hasMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW)) {
+            newArrow.setMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW,
+                    arrowToCopy.getMetadata(MetadataConstants.METADATA_KEY_SPAWNED_ARROW).get(0));
+        }
+
+        if(arrowToCopy.hasMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW)) {
+            newArrow.setMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW,
+                    arrowToCopy.getMetadata(MetadataConstants.METADATA_KEY_MULTI_SHOT_ARROW).get(0));
+        }
     }
 }