Posted April 10, 201411 yr For some reason it returns a null pointer when I try retrieving data from the data watcher using the ID of 19. Code: package poop.handler; import net.minecraft.entity.Entity; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.init.Items; import net.minecraft.item.ItemFood; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.util.ChatComponentText; import net.minecraftforge.event.entity.EntityEvent; import net.minecraftforge.event.entity.player.PlayerInteractEvent; import net.minecraftforge.event.entity.player.PlayerInteractEvent.Action; import net.minecraftforge.event.entity.player.PlayerUseItemEvent; import poop.Poop; import cpw.mods.fml.common.eventhandler.SubscribeEvent; public class ServerEventHandlerP { @SubscribeEvent public void playerConstruct(EntityEvent.EntityConstructing event) { if(!event.entity.worldObj.isRemote) { Entity entity = event.entity; if(entity instanceof EntityPlayer) { NBTTagCompound nbt = entity.getEntityData(); if(!nbt.hasKey("Food Eaten")) { nbt.setInteger("Food Eaten", 0); } entity.getDataWatcher().addObject(19, Integer.valueOf(nbt.getInteger("Food Eaten"))); } } } @SubscribeEvent public void foodEaten(PlayerUseItemEvent.Finish event) { if(!event.entityPlayer.worldObj.isRemote) { if(event.item.getItem() instanceof ItemFood) { System.err.println("FOOD EATEN"); NBTTagCompound nbt = event.entityPlayer.getEntityData(); nbt.setInteger("Food Eaten", nbt.getInteger("Food Eaten") + ((ItemFood) event.item.getItem()).func_150905_g(event.item)); event.entityPlayer.getDataWatcher().addObject(19, Integer.valueOf(nbt.getInteger("Food Eaten"))); } } } @SubscribeEvent public void bowlUsed(PlayerInteractEvent event) { if(event.action == Action.RIGHT_CLICK_AIR) { EntityPlayer player = event.entityPlayer; if(player.getHeldItem().getItem() == Items.bowl) { System.err.println("BOWL USED"); if(player.getDataWatcher().getWatchableObjectInt(19) >= { //Crash player.openGui(Poop.instance, 0, player.worldObj, (int) player.posX, (int) player.posY, (int) player.posZ); if(!event.entityPlayer.worldObj.isRemote) ServerTickHandlerP.addTimer(player); } else { player.addChatComponentMessage(new ChatComponentText("You haven't eaten enough to food!")); } } } } } Kain
April 10, 201411 yr Author Forgot the crash report: ---- Minecraft Crash Report ---- // Oops. Time: 4/10/14 5:36 PM Description: Unexpected error java.lang.NullPointerException: Unexpected error at net.minecraft.entity.DataWatcher.getWatchableObjectInt(DataWatcher.java:98) at poop.handler.ServerEventHandlerP.bowlUsed(ServerEventHandlerP.java:49) at cpw.mods.fml.common.eventhandler.ASMEventHandler_8_ServerEventHandlerP_bowlUsed_PlayerInteractEvent.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51) at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122) at net.minecraftforge.event.ForgeEventFactory.onPlayerInteract(ForgeEventFactory.java:57) at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1525) at net.minecraft.client.Minecraft.runTick(Minecraft.java:2011) at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:996) at net.minecraft.client.Minecraft.run(Minecraft.java:912) at net.minecraft.client.main.Main.main(Main.java:112) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at net.minecraft.entity.DataWatcher.getWatchableObjectInt(DataWatcher.java:98) at poop.handler.ServerEventHandlerP.bowlUsed(ServerEventHandlerP.java:49) at cpw.mods.fml.common.eventhandler.ASMEventHandler_8_ServerEventHandlerP_bowlUsed_PlayerInteractEvent.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51) at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122) at net.minecraftforge.event.ForgeEventFactory.onPlayerInteract(ForgeEventFactory.java:57) at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1525) -- Affected level -- Details: Level name: MpServer All players: 1 total; [EntityClientPlayerMP['Player270'/210, l='MpServer', x=-244.73, y=71.62, z=235.97]] Chunk stats: MultiplayerChunkCache: 255, 255 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: Level spawn location: World: (-256,64,244), Chunk: (at 0,4,4 in -16,15; contains blocks -256,0,240 to -241,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Level time: 676 game time, 676 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false Forced entities: 107 total; [EntityBat['Bat'/1360, l='MpServer', x=-290.25, y=15.78, z=219.59], EntityBat['Bat'/1659, l='MpServer', x=-284.75, y=34.10, z=188.75], EntityBat['Bat'/1658, l='MpServer', x=-284.75, y=25.84, z=193.25], EntityCaveBatRF['Cave Bat'/269, l='MpServer', x=-287.50, y=37.00, z=189.50], EntityCaveBatRF['Cave Bat'/314, l='MpServer', x=-169.50, y=32.00, z=253.50], EntityCaveBatRF['Cave Bat'/319, l='MpServer', x=-175.50, y=21.00, z=262.50], EntityCaveBatRF['Cave Bat'/318, l='MpServer', x=-178.50, y=21.00, z=261.50], EntityCaveBatRF['Cave Bat'/2491, l='MpServer', x=-240.50, y=30.00, z=290.50], EntityCaveBatRF['Cave Bat'/529, l='MpServer', x=-322.50, y=54.00, z=178.50], EntityCaveBatRF['Cave Bat'/1570, l='MpServer', x=-263.50, y=42.00, z=315.50], EntityCreeper['Creeper'/622, l='MpServer', x=-286.50, y=41.00, z=296.50], EntityFireCreeper['Fire Creeper'/623, l='MpServer', x=-292.50, y=53.00, z=189.50], EntityCreeper['Creeper'/621, l='MpServer', x=-284.59, y=44.00, z=291.00], EntityFireCreeper['Fire Creeper'/624, l='MpServer', x=-292.50, y=53.00, z=186.50], EntityCaveBatRF['Cave Bat'/634, l='MpServer', x=-299.50, y=56.00, z=235.50], EntityBat['Bat'/2514, l='MpServer', x=-167.15, y=30.82, z=245.66], EntityChicken['Chicken'/102, l='MpServer', x=-297.56, y=64.00, z=241.41], EntityChicken['Chicken'/100, l='MpServer', x=-300.50, y=64.00, z=235.50], EntityChicken['Chicken'/101, l='MpServer', x=-298.50, y=64.00, z=236.50], EntityChicken['Chicken'/99, l='MpServer', x=-298.47, y=65.00, z=225.56], EntityFireCreeper['Fire Creeper'/368, l='MpServer', x=-276.50, y=46.00, z=290.50], EntityBat['Bat'/2538, l='MpServer', x=-289.64, y=31.00, z=196.93], EntityChicken['Chicken'/110, l='MpServer', x=-286.50, y=64.00, z=246.50], EntityChicken['Chicken'/111, l='MpServer', x=-295.50, y=63.00, z=310.50], EntityChicken['Chicken'/108, l='MpServer', x=-282.59, y=64.00, z=244.53], EntityBat['Bat'/2534, l='MpServer', x=-172.48, y=59.09, z=164.63], EntityChicken['Chicken'/109, l='MpServer', x=-290.59, y=67.00, z=249.41], EntityChicken['Chicken'/107, l='MpServer', x=-289.75, y=70.00, z=252.64], EntityMinecartChest['entity.MinecartChest.name'/119, l='MpServer', x=-250.50, y=33.50, z=317.50], EntityChicken['Chicken'/118, l='MpServer', x=-251.50, y=68.00, z=301.50], EntityCaveBatRF['Cave Bat'/1567, l='MpServer', x=-296.50, y=54.00, z=233.50], EntityChicken['Chicken'/117, l='MpServer', x=-251.50, y=68.00, z=301.50], EntityCaveBatRF['Cave Bat'/2284, l='MpServer', x=-318.50, y=51.00, z=212.50], EntityChicken['Chicken'/116, l='MpServer', x=-250.50, y=68.00, z=301.50], EntityCaveBatRF['Cave Bat'/1324, l='MpServer', x=-318.50, y=55.00, z=211.50], EntityChicken['Chicken'/115, l='MpServer', x=-248.50, y=77.00, z=302.50], EntityCaveBatRF['Cave Bat'/2282, l='MpServer', x=-314.50, y=51.00, z=210.50], EntityChicken['Chicken'/114, l='MpServer', x=-293.50, y=64.00, z=310.50], EntityCaveBatRF['Cave Bat'/1325, l='MpServer', x=-247.50, y=14.00, z=240.50], EntityCaveBatRF['Cave Bat'/2281, l='MpServer', x=-316.50, y=51.00, z=211.50], EntityChicken['Chicken'/113, l='MpServer', x=-294.50, y=63.00, z=310.50], EntityChicken['Chicken'/112, l='MpServer', x=-293.50, y=64.00, z=310.50], EntityCaveBatRF['Cave Bat'/2279, l='MpServer', x=-310.50, y=51.00, z=211.50], EntityBat['Bat'/1559, l='MpServer', x=-289.91, y=29.10, z=171.22], EntityPig['Pig'/125, l='MpServer', x=-233.50, y=67.00, z=161.50], EntityPig['Pig'/124, l='MpServer', x=-233.81, y=71.00, z=164.50], EntityPig['Pig'/123, l='MpServer', x=-236.94, y=71.00, z=165.03], EntityPig['Pig'/122, l='MpServer', x=-232.47, y=71.00, z=164.50], EntitySkeleton['Skeleton'/607, l='MpServer', x=-320.44, y=30.00, z=181.94], EntityCaveBatRF['Cave Bat'/1500, l='MpServer', x=-292.50, y=58.00, z=234.50], EntityCaveBatRF['Cave Bat'/1501, l='MpServer', x=-280.50, y=58.00, z=229.50], EntityPig['Pig'/152, l='MpServer', x=-187.50, y=73.00, z=214.50], EntityBat['Bat'/1478, l='MpServer', x=-190.26, y=41.10, z=309.55], EntityPig['Pig'/153, l='MpServer', x=-176.97, y=72.00, z=202.94], EntityCaveBatRF['Cave Bat'/2321, l='MpServer', x=-191.50, y=12.00, z=236.50], EntityBat['Bat'/1477, l='MpServer', x=-206.75, y=39.64, z=305.50], EntityPig['Pig'/154, l='MpServer', x=-185.50, y=64.00, z=273.50], EntityPig['Pig'/155, l='MpServer', x=-185.50, y=64.00, z=275.50], EntityPig['Pig'/156, l='MpServer', x=-187.50, y=64.00, z=274.50], EntityPig['Pig'/157, l='MpServer', x=-188.50, y=64.00, z=272.50], EntityCreeper['Creeper'/939, l='MpServer', x=-202.50, y=39.00, z=313.50], EntityPig['Pig'/158, l='MpServer', x=-174.34, y=72.00, z=203.13], EntityCreeper['Creeper'/938, l='MpServer', x=-206.50, y=39.00, z=314.50], EntityPig['Pig'/159, l='MpServer', x=-174.19, y=71.00, z=206.22], EntityDirtCreeper['Dirt Creeper'/933, l='MpServer', x=-188.50, y=39.00, z=314.50], EntityDirtCreeper['Dirt Creeper'/932, l='MpServer', x=-191.50, y=39.00, z=312.50], EntityFireCreeper['Fire Creeper'/692, l='MpServer', x=-198.97, y=15.00, z=289.50], EntityIceCreeper['Ice Creeper'/690, l='MpServer', x=-192.50, y=15.00, z=288.50], EntityDirtCreeper['Dirt Creeper'/691, l='MpServer', x=-197.50, y=15.00, z=289.50], EntityPig['Pig'/150, l='MpServer', x=-184.50, y=75.00, z=213.50], EntityPig['Pig'/151, l='MpServer', x=-187.50, y=73.00, z=214.50], EntityBat['Bat'/2336, l='MpServer', x=-316.25, y=23.70, z=234.31], EntityCaveBatRF['Cave Bat'/1525, l='MpServer', x=-178.50, y=24.00, z=245.50], EntityPig['Pig'/175, l='MpServer', x=-167.50, y=70.00, z=184.50], EntityPig['Pig'/163, l='MpServer', x=-174.19, y=69.00, z=235.50], EntityPig['Pig'/162, l='MpServer', x=-175.78, y=69.00, z=235.50], EntityPig['Pig'/161, l='MpServer', x=-173.03, y=72.00, z=202.50], EntityPig['Pig'/160, l='MpServer', x=-172.50, y=71.00, z=202.50], EntityPig['Pig'/165, l='MpServer', x=-178.50, y=69.00, z=236.50], EntityPig['Pig'/164, l='MpServer', x=-175.50, y=69.00, z=232.50], EntityCreeper['Creeper'/660, l='MpServer', x=-238.50, y=30.00, z=298.50], EntityPig['Pig'/176, l='MpServer', x=-167.50, y=70.00, z=186.50], EntityCreeper['Creeper'/658, l='MpServer', x=-240.50, y=30.00, z=297.50], EntityCreeper['Creeper'/659, l='MpServer', x=-238.84, y=30.00, z=296.84], EntitySnowCreeper['Snow Creeper'/1156, l='MpServer', x=-308.50, y=22.00, z=241.50], EntityCaveBatRF['Cave Bat'/1434, l='MpServer', x=-293.50, y=55.00, z=226.50], EntityCaveBatRF['Cave Bat'/1435, l='MpServer', x=-296.50, y=55.00, z=227.50], EntityBat['Bat'/1437, l='MpServer', x=-275.67, y=55.02, z=228.66], EntityIceCreeper['Ice Creeper'/1415, l='MpServer', x=-198.50, y=48.00, z=295.50], EntityIceCreeper['Ice Creeper'/1414, l='MpServer', x=-196.50, y=48.00, z=295.50], EntityCaveBatRF['Cave Bat'/2124, l='MpServer', x=-323.50, y=36.00, z=159.50], EntitySnowCreeper['Snow Creeper'/1416, l='MpServer', x=-316.50, y=27.00, z=222.50], EntityBat['Bat'/2120, l='MpServer', x=-199.75, y=32.10, z=314.75], EntityCaveBatRF['Cave Bat'/978, l='MpServer', x=-294.50, y=25.00, z=185.50], EntityIceCreeper['Ice Creeper'/500, l='MpServer', x=-286.50, y=51.00, z=262.50], EntityCaveBatRF['Cave Bat'/1465, l='MpServer', x=-315.50, y=12.00, z=247.50], EntityIceCreeper['Ice Creeper'/501, l='MpServer', x=-285.50, y=51.00, z=266.50], EntityIceCreeper['Ice Creeper'/502, l='MpServer', x=-284.50, y=51.00, z=263.50], EntityCaveBatRF['Cave Bat'/982, l='MpServer', x=-323.50, y=27.00, z=219.50], EntityCaveBatRF['Cave Bat'/710, l='MpServer', x=-180.50, y=41.00, z=246.50], EntityCaveBatRF['Cave Bat'/730, l='MpServer', x=-279.50, y=56.00, z=238.50], EntityCaveBatRF['Cave Bat'/1921, l='MpServer', x=-230.50, y=36.00, z=306.50], EntityClientPlayerMP['Player270'/210, l='MpServer', x=-244.73, y=71.62, z=235.97], EntityBat['Bat'/723, l='MpServer', x=-221.25, y=40.10, z=309.75], EntityCaveBatRF['Cave Bat'/724, l='MpServer', x=-224.50, y=39.00, z=316.50], EntityCaveBatRF['Cave Bat'/726, l='MpServer', x=-313.50, y=44.00, z=200.50], EntityCaveBatRF['Cave Bat'/482, l='MpServer', x=-292.50, y=30.00, z=196.50]] Retry entities: 0 total; [] Server brand: fml,forge Server type: Integrated singleplayer server Stacktrace: at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:412) at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2517) at net.minecraft.client.Minecraft.run(Minecraft.java:941) at net.minecraft.client.main.Main.main(Main.java:112) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.7.2 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.7.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 712513128 bytes (679 MB) / 1038876672 bytes (990 MB) up to 1038876672 bytes (990 MB) JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M AABB Pool Size: 10003 (560168 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 FML: MCP v9.01-pre FML v7.2.137.1055 Minecraft Forge 10.12.0.1055 11 mods loaded, 11 mods active mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available FML{7.2.137.1055} [Forge Mod Loader] (forgeSrc-1.7.2-10.12.0.1055.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available Forge{10.12.0.1055} [Minecraft Forge] (forgeSrc-1.7.2-10.12.0.1055.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available deathchest{1.0} [Death Chest] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available enderStorage{1.0} [Ender Storage] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available increasedHealth{1.0} [increased Health] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available moretools{1.0} [More Tools] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available poop{1.0} [The Excrement Mod] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available realmoffera{Indev 1} [Realm of Fera] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available variedcreepers{1.0} [Varied Creepers] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available Launched Version: 1.6 LWJGL: 2.9.0 OpenGL: GeForce GT 520/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Resource Packs: [] Current Language: English (US) Profiler Position: N/A (disabled) Vec3 Pool Size: 2152 (120512 bytes; 0 MB) allocated, 17 (952 bytes; 0 MB) used Anisotropic Filtering: Off (1) Kain
April 11, 201411 yr 1. player.getHeldItem() can return null so check for that or it will crash there, too! 2. There's no dataWatcher object with ID 19 within the EntityPlayer. What are you trying to check exactly? Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! | mah twitter This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.
April 11, 201411 yr Author Ok, I'll do that. In my first event (entity constructing) I add it. I'm keeping count of how many food bars the player has eaten. Like when the player eats steak, it adds 8. I'm trying to avoid using packets to sync the data. Kain
April 11, 201411 yr Ok, I'll do that. In my first event (entity constructing) I add it. I'm keeping count of how many food bars the player has eaten. Like when the player eats steak, it adds 8. I'm trying to avoid using packets to sync the data. Can I see that code of your event? (also where you register it) Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! | mah twitter This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.
April 11, 201411 yr Author The entity constructing event is in the code I already posted. Here's my registering code: package poop; import net.minecraftforge.common.MinecraftForge; import poop.handler.GuiHandlerP; import poop.handler.ServerEventHandlerP; import poop.handler.ServerTickHandlerP; import cpw.mods.fml.common.FMLCommonHandler; import cpw.mods.fml.common.network.NetworkRegistry; public class ServerProxyP { public void initServer() { MinecraftForge.EVENT_BUS.register(new ServerEventHandlerP()); FMLCommonHandler.instance().bus().register(new ServerTickHandlerP()); NetworkRegistry.INSTANCE.registerGuiHandler(Poop.instance, new GuiHandlerP()); } public void initClient() { } } Kain
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