Added death drop locks, removed /deathblow.

plugin.yml

@@ -119,10 +119,9 @@ commands:
       description: Converts an administrative claim to a private claim.
       usage: /TransferClaim <player>
       permission: griefprevention.adjustclaimblocks
-   deathblow:
+   unlockdrops:
-      description: Kills a player, optionally giving his inventory to another player.
+      description: Allows other players to pick up the items you dropped when you died.
-      usage: /DeathBlow <player> [recipientPlayer]
+      usage: /UnlockDrops
-      permission: griefprevention.deathblow
    claimslist:
       description: Lists information about a player's claim blocks and claims.
       usage: /ClaimsList or /ClaimsList <player>

src/me/ryanhamshire/GriefPrevention/DataStore.java

@@ -1166,6 +1166,9 @@ public abstract class DataStore
 		this.addDefault(defaults, Messages.NoPistonsOutsideClaims, "Warning: Pistons won't move blocks outside land claims.", null);
 		this.addDefault(defaults, Messages.SoftMuted, "Soft-muted {0}.", "0: The changed player's name.");
 		this.addDefault(defaults, Messages.UnSoftMuted, "Un-soft-muted {0}.", "0: The changed player's name.");
+		this.addDefault(defaults, Messages.DropUnlockAdvertisement, "Other players can't pick up your dropped items unless you /UnlockDrops first.", null);
+		this.addDefault(defaults, Messages.PickupBlockedExplanation, "You can't pick this up unless {0} uses /UnlockDrops.", "0: The item stack's owner.");
+		this.addDefault(defaults, Messages.DropUnlockConfirmation, "Unlocked your drops.  Other players may now pick them up (until you die again).", null);
 		
 		//load the config file
 		FileConfiguration config = YamlConfiguration.loadConfiguration(new File(messagesFilePath));

src/me/ryanhamshire/GriefPrevention/EntityEventHandler.java

@@ -23,6 +23,7 @@ import java.util.List;
 
 import org.bukkit.Location;
 import org.bukkit.Material;
+import org.bukkit.World;
 import org.bukkit.World.Environment;
 import org.bukkit.block.Block;
 import org.bukkit.block.Hopper;
@@ -62,6 +63,7 @@ import org.bukkit.event.inventory.InventoryMoveItemEvent;
 import org.bukkit.event.vehicle.VehicleDamageEvent;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.InventoryHolder;
+import org.bukkit.inventory.ItemStack;
 
 //handles events related to entities
 class EntityEventHandler implements Listener
@@ -217,7 +219,32 @@ class EntityEventHandler implements Listener
 	{
 		LivingEntity entity = event.getEntity();
 		
-		//don't track in worlds where claims are not enabled
+		//FEATURE: lock dropped items to player who dropped them
+		
+		if(entity instanceof Player)
+		{
+		    Player player = (Player)entity;
+		    World world = entity.getWorld();
+		    
+		    //decide whether or not to apply this feature to this situation (depends on the world wher it happens)
+		    boolean isPvPWorld = GriefPrevention.instance.config_pvp_enabledWorlds.contains(world);
+		    if((isPvPWorld && GriefPrevention.instance.config_lockDeathDropsInPvpWorlds) || 
+		       (!isPvPWorld && GriefPrevention.instance.config_lockDeathDropsInNonPvpWorlds))
+		    {
+		        //mark the dropped stacks with player's UUID
+		        List<ItemStack> drops = event.getDrops();
+		        for(ItemStack stack : drops)
+		        {
+		            GriefPrevention.instance.itemStackOwnerMap.put(stack, player.getUniqueId());
+		        }
+		        
+		        //allow the player to receive a message about how to unlock any drops
+		        PlayerData playerData = this.dataStore.getPlayerData(player.getUniqueId());
+		        playerData.receivedDropUnlockAdvertisement = false;
+		    }
+		}
+		
+		//don't do the rest in worlds where claims are not enabled
         if(!GriefPrevention.instance.claimsEnabledForWorld(entity.getWorld())) return;
 		
 		//special rule for creative worlds: killed entities don't drop items or experience orbs

src/me/ryanhamshire/GriefPrevention/GriefPrevention.java

@@ -64,6 +64,9 @@ public class GriefPrevention extends JavaPlugin
 	//this handles data storage, like player and region data
 	public DataStore dataStore;
 	
+	//this remembers which item stacks dropped in the world belong to which players
+    ConcurrentHashMap<ItemStack, UUID> itemStackOwnerMap = new ConcurrentHashMap<ItemStack, UUID>();
+	
 	//configuration variables, loaded/saved from a config.yml
 	
 	//claim mode for each world
@@ -121,6 +124,9 @@ public class GriefPrevention extends JavaPlugin
 	public boolean config_pvp_noCombatInAdminLandClaims;			//whether players may fight in admin-owned land claims
 	public boolean config_pvp_noCombatInAdminSubdivisions;          //whether players may fight in subdivisions of admin-owned land claims
 	
+	public boolean config_lockDeathDropsInPvpWorlds;                //whether players' dropped on death items are protected in pvp worlds
+	public boolean config_lockDeathDropsInNonPvpWorlds;             //whether players' dropped on death items are protected in non-pvp worlds
+	
 	public double config_economy_claimBlocksPurchaseCost;			//cost to purchase a claim block.  set to zero to disable purchase.
 	public double config_economy_claimBlocksSellValue;				//return on a sold claim block.  set to zero to disable sale.
 	
@@ -527,6 +533,9 @@ public class GriefPrevention extends JavaPlugin
         this.config_economy_claimBlocksPurchaseCost = config.getDouble("GriefPrevention.Economy.ClaimBlocksPurchaseCost", 0);
         this.config_economy_claimBlocksSellValue = config.getDouble("GriefPrevention.Economy.ClaimBlocksSellValue", 0);
         
+        this.config_lockDeathDropsInPvpWorlds = config.getBoolean("GriefPrevention.ProtectItemsDroppedOnDeath.PvPWorlds", false);
+        this.config_lockDeathDropsInNonPvpWorlds = config.getBoolean("GriefPrevention.ProtectItemsDroppedOnDeath.NonPvPWorlds", true);
+        
         this.config_blockSurfaceCreeperExplosions = config.getBoolean("GriefPrevention.BlockSurfaceCreeperExplosions", true);
         this.config_blockSurfaceOtherExplosions = config.getBoolean("GriefPrevention.BlockSurfaceOtherExplosions", true);
         this.config_blockSkyTrees = config.getBoolean("GriefPrevention.LimitSkyTrees", true);
@@ -737,6 +746,9 @@ public class GriefPrevention extends JavaPlugin
         outConfig.set("GriefPrevention.Economy.ClaimBlocksPurchaseCost", this.config_economy_claimBlocksPurchaseCost);
         outConfig.set("GriefPrevention.Economy.ClaimBlocksSellValue", this.config_economy_claimBlocksSellValue);
         
+        outConfig.set("GriefPrevention.ProtectItemsDroppedOnDeath.PvPWorlds", this.config_lockDeathDropsInPvpWorlds);
+        outConfig.set("GriefPrevention.ProtectItemsDroppedOnDeath.NonPvPWorlds", this.config_lockDeathDropsInNonPvpWorlds);
+        
         outConfig.set("GriefPrevention.BlockSurfaceCreeperExplosions", this.config_blockSurfaceCreeperExplosions);
         outConfig.set("GriefPrevention.BlockSurfaceOtherExplosions", this.config_blockSurfaceOtherExplosions);
         outConfig.set("GriefPrevention.LimitSkyTrees", this.config_blockSkyTrees);
@@ -1622,62 +1634,12 @@ public class GriefPrevention extends JavaPlugin
 			return true;
 		}
 		
-		//deathblow <player> [recipientPlayer]
+		//unlockItems
-		else if(cmd.getName().equalsIgnoreCase("deathblow"))
+		else if(cmd.getName().equalsIgnoreCase("unlockdrops") && player != null)
 		{
-			//requires at least one parameter, the target player's name
+			PlayerData playerData = this.dataStore.getPlayerData(player.getUniqueId());
-			if(args.length < 1) return false;
+		    playerData.dropsAreUnlocked = true;
-			
+		    GriefPrevention.sendMessage(player, TextMode.Success, Messages.DropUnlockConfirmation);
-			//try to find that player
-			Player targetPlayer = this.getServer().getPlayer(args[0]);
-			if(targetPlayer == null)
-			{
-				GriefPrevention.sendMessage(player, TextMode.Err, Messages.PlayerNotFound2);
-				return true;
-			}
-			
-			//try to find the recipient player, if specified
-			Player recipientPlayer = null;
-			if(args.length > 1)
-			{
-				recipientPlayer = this.getServer().getPlayer(args[1]);
-				if(recipientPlayer == null)
-				{
-					GriefPrevention.sendMessage(player, TextMode.Err, Messages.PlayerNotFound2);
-					return true;
-				}
-			}
-			
-			//if giving inventory to another player, teleport the target player to that receiving player
-			if(recipientPlayer != null)
-			{
-				targetPlayer.teleport(recipientPlayer);
-			}
-			
-			//otherwise, plan to "pop" the player in place
-			else
-			{
-				//if in a normal world, shoot him up to the sky first, so his items will fall on the surface.
-				if(targetPlayer.getWorld().getEnvironment() == Environment.NORMAL)
-				{
-					Location location = targetPlayer.getLocation();
-					location.setY(location.getWorld().getMaxHeight());
-					targetPlayer.teleport(location);
-				}
-			}
-			 
-			//kill target player
-			targetPlayer.setHealth(0);
-			
-			//log entry
-			if(player != null)
-			{
-				GriefPrevention.AddLogEntry(player.getName() + " used /DeathBlow to kill " + targetPlayer.getName() + ".");
-			}
-			else
-			{
-				GriefPrevention.AddLogEntry("Killed " + targetPlayer.getName() + ".");
-			}
 			
 			return true;
 		}
@@ -2207,6 +2169,7 @@ public class GriefPrevention extends JavaPlugin
 
 	//helper method to resolve a player by name
 	ConcurrentHashMap<String, UUID> playerNameToIDMap = new ConcurrentHashMap<String, UUID>();
+
 	private OfflinePlayer resolvePlayerByName(String name) 
 	{
 		//try online players first

src/me/ryanhamshire/GriefPrevention/Messages.java

@@ -20,5 +20,5 @@ package me.ryanhamshire.GriefPrevention;
 
 public enum Messages
 {
-	RespectingClaims, IgnoringClaims, SuccessfulAbandon, RestoreNatureActivate, RestoreNatureAggressiveActivate, FillModeActive, TransferClaimPermission, TransferClaimMissing, TransferClaimAdminOnly, PlayerNotFound2, TransferTopLevel, TransferSuccess, TrustListNoClaim, ClearPermsOwnerOnly, UntrustIndividualAllClaims, UntrustEveryoneAllClaims, NoPermissionTrust, ClearPermissionsOneClaim, UntrustIndividualSingleClaim, OnlySellBlocks, BlockPurchaseCost, ClaimBlockLimit, InsufficientFunds, PurchaseConfirmation, OnlyPurchaseBlocks, BlockSaleValue, NotEnoughBlocksForSale, BlockSaleConfirmation, AdminClaimsMode, BasicClaimsMode, SubdivisionMode, SubdivisionVideo, DeleteClaimMissing, DeletionSubdivisionWarning, DeleteSuccess, CantDeleteAdminClaim, DeleteAllSuccess, NoDeletePermission, AllAdminDeleted, AdjustBlocksSuccess, NotTrappedHere, RescuePending, NonSiegeWorld, AlreadySieging, NotSiegableThere, SiegeTooFarAway, NoSiegeDefenseless, AlreadyUnderSiegePlayer, AlreadyUnderSiegeArea, NoSiegeAdminClaim, SiegeOnCooldown, SiegeAlert, SiegeConfirmed, AbandonClaimMissing, NotYourClaim, DeleteTopLevelClaim, AbandonSuccess, CantGrantThatPermission, GrantPermissionNoClaim, GrantPermissionConfirmation, ManageUniversalPermissionsInstruction, ManageOneClaimPermissionsInstruction, CollectivePublic, BuildPermission, ContainersPermission, AccessPermission, PermissionsPermission, LocationCurrentClaim, LocationAllClaims, PvPImmunityStart, SiegeNoDrop, DonateItemsInstruction, ChestFull, DonationSuccess, PlayerTooCloseForFire, TooDeepToClaim, ChestClaimConfirmation, AutomaticClaimNotification, UnprotectedChestWarning, ThatPlayerPvPImmune, CantFightWhileImmune, NoDamageClaimedEntity, ShovelBasicClaimMode, RemainingBlocks, CreativeBasicsVideo, SurvivalBasicsVideo, TrappedChatKeyword, TrappedInstructions, PvPNoDrop, SiegeNoTeleport, BesiegedNoTeleport, SiegeNoContainers, PvPNoContainers, PvPImmunityEnd, NoBedPermission, NoWildernessBuckets, NoLavaNearOtherPlayer, TooFarAway, BlockNotClaimed, BlockClaimed, SiegeNoShovel, RestoreNaturePlayerInChunk, NoCreateClaimPermission, ResizeClaimTooSmall, ResizeNeedMoreBlocks, NoCreativeUnClaim, ClaimResizeSuccess, ResizeFailOverlap, ResizeStart, ResizeFailOverlapSubdivision, SubdivisionStart, CreateSubdivisionOverlap, SubdivisionSuccess, CreateClaimFailOverlap, CreateClaimFailOverlapOtherPlayer, ClaimsDisabledWorld, ClaimStart, NewClaimTooSmall, CreateClaimInsufficientBlocks, AbandonClaimAdvertisement, CreateClaimFailOverlapShort, CreateClaimSuccess, SiegeWinDoorsOpen, RescueAbortedMoved, SiegeDoorsLockedEjection, NoModifyDuringSiege, OnlyOwnersModifyClaims, NoBuildUnderSiege, NoBuildPvP, NoBuildPermission, NonSiegeMaterial, NoOwnerBuildUnderSiege, NoAccessPermission, NoContainersSiege, NoContainersPermission, OwnerNameForAdminClaims, ClaimTooSmallForEntities, TooManyEntitiesInClaim, YouHaveNoClaims, ConfirmFluidRemoval, AutoBanNotify, AdjustGroupBlocksSuccess, InvalidPermissionID, UntrustOwnerOnly, HowToClaimRegex, NoBuildOutsideClaims, PlayerOfflineTime, BuildingOutsideClaims, TrappedWontWorkHere, CommandBannedInPvP, UnclaimCleanupWarning, BuySellNotConfigured, NoTeleportPvPCombat, NoTNTDamageAboveSeaLevel, NoTNTDamageClaims, IgnoreClaimsAdvertisement, NoPermissionForCommand, ClaimsListNoPermission, ExplosivesDisabled, ExplosivesEnabled, ClaimExplosivesAdvertisement, PlayerInPvPSafeZone, NoPistonsOutsideClaims, SoftMuted, UnSoftMuted	
+	RespectingClaims, IgnoringClaims, SuccessfulAbandon, RestoreNatureActivate, RestoreNatureAggressiveActivate, FillModeActive, TransferClaimPermission, TransferClaimMissing, TransferClaimAdminOnly, PlayerNotFound2, TransferTopLevel, TransferSuccess, TrustListNoClaim, ClearPermsOwnerOnly, UntrustIndividualAllClaims, UntrustEveryoneAllClaims, NoPermissionTrust, ClearPermissionsOneClaim, UntrustIndividualSingleClaim, OnlySellBlocks, BlockPurchaseCost, ClaimBlockLimit, InsufficientFunds, PurchaseConfirmation, OnlyPurchaseBlocks, BlockSaleValue, NotEnoughBlocksForSale, BlockSaleConfirmation, AdminClaimsMode, BasicClaimsMode, SubdivisionMode, SubdivisionVideo, DeleteClaimMissing, DeletionSubdivisionWarning, DeleteSuccess, CantDeleteAdminClaim, DeleteAllSuccess, NoDeletePermission, AllAdminDeleted, AdjustBlocksSuccess, NotTrappedHere, RescuePending, NonSiegeWorld, AlreadySieging, NotSiegableThere, SiegeTooFarAway, NoSiegeDefenseless, AlreadyUnderSiegePlayer, AlreadyUnderSiegeArea, NoSiegeAdminClaim, SiegeOnCooldown, SiegeAlert, SiegeConfirmed, AbandonClaimMissing, NotYourClaim, DeleteTopLevelClaim, AbandonSuccess, CantGrantThatPermission, GrantPermissionNoClaim, GrantPermissionConfirmation, ManageUniversalPermissionsInstruction, ManageOneClaimPermissionsInstruction, CollectivePublic, BuildPermission, ContainersPermission, AccessPermission, PermissionsPermission, LocationCurrentClaim, LocationAllClaims, PvPImmunityStart, SiegeNoDrop, DonateItemsInstruction, ChestFull, DonationSuccess, PlayerTooCloseForFire, TooDeepToClaim, ChestClaimConfirmation, AutomaticClaimNotification, UnprotectedChestWarning, ThatPlayerPvPImmune, CantFightWhileImmune, NoDamageClaimedEntity, ShovelBasicClaimMode, RemainingBlocks, CreativeBasicsVideo, SurvivalBasicsVideo, TrappedChatKeyword, TrappedInstructions, PvPNoDrop, SiegeNoTeleport, BesiegedNoTeleport, SiegeNoContainers, PvPNoContainers, PvPImmunityEnd, NoBedPermission, NoWildernessBuckets, NoLavaNearOtherPlayer, TooFarAway, BlockNotClaimed, BlockClaimed, SiegeNoShovel, RestoreNaturePlayerInChunk, NoCreateClaimPermission, ResizeClaimTooSmall, ResizeNeedMoreBlocks, NoCreativeUnClaim, ClaimResizeSuccess, ResizeFailOverlap, ResizeStart, ResizeFailOverlapSubdivision, SubdivisionStart, CreateSubdivisionOverlap, SubdivisionSuccess, CreateClaimFailOverlap, CreateClaimFailOverlapOtherPlayer, ClaimsDisabledWorld, ClaimStart, NewClaimTooSmall, CreateClaimInsufficientBlocks, AbandonClaimAdvertisement, CreateClaimFailOverlapShort, CreateClaimSuccess, SiegeWinDoorsOpen, RescueAbortedMoved, SiegeDoorsLockedEjection, NoModifyDuringSiege, OnlyOwnersModifyClaims, NoBuildUnderSiege, NoBuildPvP, NoBuildPermission, NonSiegeMaterial, NoOwnerBuildUnderSiege, NoAccessPermission, NoContainersSiege, NoContainersPermission, OwnerNameForAdminClaims, ClaimTooSmallForEntities, TooManyEntitiesInClaim, YouHaveNoClaims, ConfirmFluidRemoval, AutoBanNotify, AdjustGroupBlocksSuccess, InvalidPermissionID, UntrustOwnerOnly, HowToClaimRegex, NoBuildOutsideClaims, PlayerOfflineTime, BuildingOutsideClaims, TrappedWontWorkHere, CommandBannedInPvP, UnclaimCleanupWarning, BuySellNotConfigured, NoTeleportPvPCombat, NoTNTDamageAboveSeaLevel, NoTNTDamageClaims, IgnoreClaimsAdvertisement, NoPermissionForCommand, ClaimsListNoPermission, ExplosivesDisabled, ExplosivesEnabled, ClaimExplosivesAdvertisement, PlayerInPvPSafeZone, NoPistonsOutsideClaims, SoftMuted, UnSoftMuted, DropUnlockAdvertisement, PickupBlockedExplanation, DropUnlockConfirmation	
 }

src/me/ryanhamshire/GriefPrevention/PlayerData.java

@@ -109,6 +109,15 @@ public class PlayerData
 
 	public InetAddress ipAddress;
 
+    //whether or not this player has received a message about unlocking death drops since his last death
+	boolean receivedDropUnlockAdvertisement = false;
+
+    //whether or not this player's dropped items (on death) are unlocked for other players to pick up
+	boolean dropsAreUnlocked = false;
+
+    //message to send to player after he respawns
+	String messageOnRespawn = null;
+	
 	//whether or not this player is "in" pvp combat
 	public boolean inPvpCombat()
 	{

src/me/ryanhamshire/GriefPrevention/PlayerEventHandler.java

@@ -594,9 +594,17 @@ class PlayerEventHandler implements Listener
     @EventHandler(ignoreCancelled = true)
     void onPlayerRespawn (PlayerRespawnEvent event)
     {
-        PlayerData playerData = GriefPrevention.instance.dataStore.getPlayerData(event.getPlayer().getUniqueId());
+        Player player = event.getPlayer();
+        PlayerData playerData = GriefPrevention.instance.dataStore.getPlayerData(player.getUniqueId());
         playerData.lastSpawn = Calendar.getInstance().getTimeInMillis();
-        GriefPrevention.instance.checkPvpProtectionNeeded(event.getPlayer());
+        GriefPrevention.instance.checkPvpProtectionNeeded(player);
+        
+        //also send him any messaged from grief prevention he would have received while dead
+        if(playerData.messageOnRespawn != null)
+        {
+            GriefPrevention.sendMessage(player, ChatColor.RESET /*color is alrady embedded in message in this case*/, playerData.messageOnRespawn, 40L);
+            playerData.messageOnRespawn = null;
+        }
     }
 	
 	//when a player dies...
@@ -612,6 +620,10 @@ class PlayerEventHandler implements Listener
 		}
 		
 		playerData.lastDeathTimeStamp = now;
+		
+		//these are related to locking dropped items on death to prevent theft
+		playerData.dropsAreUnlocked = false;
+		playerData.receivedDropUnlockAdvertisement = false;
 	}
 	
 	//when a player gets kicked...
@@ -906,7 +918,44 @@ class PlayerEventHandler implements Listener
 	{
 		Player player = event.getPlayer();
 		
-		if(!event.getPlayer().getWorld().getPVP()) return;
+		//FEATURE: lock dropped items to player who dropped them
+		
+		//who owns this stack?
+		ItemStack stack = event.getItem().getItemStack();
+		UUID ownerID = GriefPrevention.instance.itemStackOwnerMap.get(stack);
+		if(ownerID != null)
+		{
+		    //has that player unlocked his drops?
+		    OfflinePlayer owner = GriefPrevention.instance.getServer().getOfflinePlayer(ownerID);
+		    String ownerName = GriefPrevention.lookupPlayerName(ownerID);
+		    if(owner.isOnline() && !player.equals(owner))
+		    {
+		        PlayerData playerData = this.dataStore.getPlayerData(ownerID);
+		        
+		        //if locked, don't allow pickup
+		        if(!playerData.dropsAreUnlocked)
+		        {
+		            event.setCancelled(true);
+		            
+		            //if hasn't been instructed how to unlock, send explanatory messages
+		            if(!playerData.receivedDropUnlockAdvertisement)
+		            {
+		                GriefPrevention.sendMessage(owner.getPlayer(), TextMode.Instr, Messages.DropUnlockAdvertisement);
+		                GriefPrevention.sendMessage(player, TextMode.Err, Messages.PickupBlockedExplanation, ownerName);
+		                playerData.receivedDropUnlockAdvertisement = true;
+		            }
+		        }
+		    }
+		    
+		    //if allowed to pick up, remove from ownership map
+		    if(!event.isCancelled())
+		    {
+		        GriefPrevention.instance.itemStackOwnerMap.remove(stack);
+		    }
+		}
+		
+		//the rest of this code is specific to pvp worlds
+		if(!GriefPrevention.instance.config_pvp_enabledWorlds.contains(player.getWorld())) return;
 		
 		//if we're preventing spawn camping and the player was previously empty handed...
 		if(GriefPrevention.instance.config_pvp_protectFreshSpawns && (player.getItemInHand().getType() == Material.AIR))

src/me/ryanhamshire/GriefPrevention/SendPlayerMessageTask.java

@@ -39,6 +39,17 @@ class SendPlayerMessageTask implements Runnable
 	@Override
 	public void run()
 	{
-		GriefPrevention.sendMessage(this.player, this.color, this.message);
+		//if the player is dead, save it for after his respawn
+	    if(this.player.isDead())
+	    {
+	        PlayerData playerData = GriefPrevention.instance.dataStore.getPlayerData(this.player.getUniqueId());
+	        playerData.messageOnRespawn = this.color + this.message;
+	    }
+	    
+	    //otherwise send it immediately
+	    else
+	    {
+	        GriefPrevention.sendMessage(this.player, this.color, this.message);
+	    }
 	}	
 }