Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

[Resolved | 1.8.9] How to check if an itemstack in a slot is a certain item.


Recommended Posts

Simple (hopefully) question. How can I compare the itemstack in a slot with an itemstack that I am checking for.

 

Eg. I am trying to check if slot index 0 has a diamond.

 

I've tried just comparing the itemstack in the slot with new ItemStack(items.whatever) however that does not work presumably because certain data such as how long the item has existed for is different from a newly generated itemstack.

 

Any help would be appreciated!

Link to post
Share on other sites

Minecraft does not like me using getItem on the itemstack returned from the slot check ( this.getStackInSlot(0).getItem() ), crashes and throws a NullPointerException, even though I'm making sure to check that it isn't null before executing any code using it.

 

Crash report: http://paste.ee/p/CnMhU

 

Tile Entity Class where the error is thrown: http://paste.ee/p/tyuNv (getItem checks around line 204)

 

Help would be appreciated, and sorry for any hassle.

 

EDIT: Whoops! Needed to make sure the ItemStack itself wasn't null before setting a variable to Itemstack.getItem()

 

Link to post
Share on other sites

What happens when the player does not have an item in that slot?

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    No registered users viewing this page.

  • Posts

    • protected static final DimensionType NETHER_TYPE = new DimensionType(OptionalLong.of(18000L), false, true, true, false, 8.0D, false, true, false, true, false, 128, FuzzedBiomeMagnifier.INSTANCE, BlockTags.INFINIBURN_NETHER.getName(), THE_NETHER_ID, 0.1F); This code in DimensionType class. I found that 8.0D its what i need but i dosent know how to change this or override nether_type. If mod with same functionality exist you can give me url (i need it for my mod pack).
    • Please post your server log, it should give a clue what's going on.
    • It looks like you may be trying to reply to someone's support post, you instead you created a new one.
    • compactstorage-1.16.5-5.1b17.jarcarryon-1.16.5-1.15.5.15.jarAdHooks-1.16.4-6.1.5.0-build.0124.jarXaerosWorldMap_1.14.1_Forge_1.16.5.jarXaeros_Minimap_21.10.0.3_Forge_1.16.5.jartrashcans-1.0.10-mc1.16.5.jarSuperTools-1.2_1.16.5.jarSpartanShields-1.16.5-2.1.2.jarrandomite-1.16.4-1.0.1.jaroverloadedarmorbar-5.1.0.jaroresplusmod_1.16.5,0.1.0.jarturtle_armor-1.3.4.jartoyguns-0.1-1.16.4.jartoughnessbar-6.1.jartorchmaster-2.3.7.jarToast-Control-1.16.4-4.3.1.jartitanium-1.16.5-3.2.8.4-10.jarthermal_expansion-1.16.4-1.2.0.jartheoneprobe-1.16-3.1.4.jarthedragonlib-1.16.3-1.1.0.jarswingthroughgrass-1.16.4-1.5.3.jarsuper+armor-5.0.4(EN).jarStorageDrawers-1.16.3-8.2.2.jarsteveGolemMod_1.3.0.jarSteelArmory.jarSoulBound-1.1.3-1.16.5.jarSimplyBetter.jarSimple guns reworked 1.16.5 v1.4.jarsilent-lib-1.16.3-4.9.6.jarRunelic-1.16.5-7.0.1.jarrftoolsbase-1.16-2.0.10.jarReAuth-1.16-Forge-3.9.3.jarrandompatches-2.4.4-forge.jarprecious_armor-1.16.5.jarPlacebo-1.16.4-4.5.0.jarPatchouli-1.16.4-51.jaroverloadedarmorbar-5.1.0.jarOreExcavation-1.8.157.jarOp Armor Plus 1.16.5 0.6.jarobserverlib-1.16.5-1.5.3.jarobfuscate-0.6.2-1.16.3.jarnetheritehorsearmor-1.7.jarNeat 1.7-27.jarNaturesCompass-1.16.5-1.9.0.jarMouseTweaks-2.14-mc1.16.2.jarMorpheus-1.16.5-4.2.70.jarMoreOresArmorsAndTools 1.2.5.jarMoreArmor-1-4-0.jarMekanismTools-1.16.5-10.0.21.448.jarMekanismGenerators-1.16.5-10.0.21.448.jarmcjtylib-1.16-5.0.19.jarMantle-1.16.5-1.6.103.jarMachineBoy's ArmorTool v1.2b1.jarJustEnoughResources-1.16.5-0.12.1.121.jarJEITweaker-1.16.5-1.0.1.28.jarjei-1.16.5-7.7.0.106.jarJ0T0S0 Weapons 1.0.0.jarironchest-1.16.4-11.2.10.jarillagersweararmor-1.0.4.jariChunUtil-1.16.5-10.4.1.jarhitscan-1.0.1.jarHandyGuns2.0.jargunswithoutroses-1.16.5-1.0.9.jarGuns'N'Glory-2.0.jarGuns and Rifes.jarftb-backups-2.1.1.6.jarForgeEndertech-1.16.4-7.1.0.0-build.0075.jarFluxNetworks-1.16.5-6.1.7.12.jarFastWorkbench-1.16.4-4.5.1.jarFastLeafDecay-v25.jarFastFurnace-1.16.4-4.4.0.jarfabric-api-0.35.0+1.16.jarExtraArmor-1.12.1-1.16.5.jarEnderStorage-1.16.4-2.7.1.166-universal.jarEnchantmentDescriptions-1.16.5-7.0.8.jarEnameledArmor-1.16.2-1.0.0.8.jaremeraldtoolsandarmor1.16.x.jarEmeraldArmorAndTools.jarelevatorid-1.16.5-1.7.13.jarDiceMC-TieredArmor-1.16.5-1.1a.jarDefaultOptions_1.16.5-12.2.1.jarDecraftHorseArmor-1.16.5-r1.jarDarkUtilities-1.16.5-8.0.10.jarCyclopsCore-1.16.5-1.11.7.jarCurious Armor Stands-1.16.5-2.1.1.jarcurios-forge-1.16.5-4.0.5.2.jarCucumber-1.16.4-4.1.10.jarCTM-MC1.16.1-1.1.2.6.jarCraftingTweaks_1.16.5-12.2.1.jarCraftableChainmail-1.16.5-1.1.0.jarcraftable_chainmail_1.16.5.jarOresAboveDiamonds-1.16.4-v6.3.3.jarCraftable Saddle and Horse Armors.jarCosmeticArmorReworked-1.16.5-v3a.jarCookingForBlockheads_1.16.5-9.3.2.jarControlling-7.0.0.23.jarcomforts-forge-1.16.5-4.0.0.4.jarColtCosmeticArmorMod-1.2.5.jarCodeChickenLib-1.16.4-3.5.1.408-universal.jarClumps-6.0.0.25.jarcitadel-1.7.1-1.16.5.jarchiselsandbits-0.3.4-RELEASE.jarcarryon-1.16.5-1.15.5.15.jarbuildinggadgets-1.16.5-3.8.0.jarBookshelf-1.16.5-10.1.11.jarBomb and guns.jarBlockArmor-1.16.5-2.6.2.jarBetterMineshafts-Forge-1.16.4-2.0.4.jarBetterHorseArmor-1.16.3-1.0.1.1.jarBetterAdvancements-1.16.5-0.1.0.108.jarBedrock Armor 1.16.5-1.0.2.jarAutoRegLib-1.6-49.jararmor-visibility-2.0.1-forge.jarArmorUp-1.0.5-BETA.jarArmorUnlocked-1.16.3-1.0.1.jararmorunder-mc1.16.5-2.0b11.jararmor-stand-editor-1.1.0.jarArmorPoser-1.16.5-1.0.1.jararmorpointspp-1.16.5-2.0.0.jararmorhotswap-1.16-1.8.jarArmoredElytra-1.0.8.jararmorcurve-2.3.jarAquaculture-1.16.5-2.1.19.jarAppleSkin-mc1.16.2-forge-1.0.14.jarApotheosis-1.16.4-4.6.1.jarAncientGuns_3.2_1.16.4.jarAkashicTome-1.4-16.jar1.7.4.1-1.16.5ATOp.jar[1.16.5] BobLib-0.2.0.jar[1.16.5] Armor Status HUD-1.4.0.jarEmerald armor and tools 1.15.16 v3.jarYungsApi-1.16.4-Forge-6.jaryeni modum.jarxnet-1.16-3.0.13.jarwolveswitharmor-1.1.0-1.16.2.jarWaystones_1.16.5-7.6.2.jarvisiblearmorslots-2.0-1.16.5.jarNeat 1.7-27.jarNaturesCompass-1.16.5-1.9.0.jarMoreOresInONE-1.2_1.16.5.jarmcw-windows-1.0.3-mc1.16.5.jarmcw-bridges-1.0.5-mc1.16.5-4.jarlongfallboots-1.6.0a.jarJustEnoughResources-1.16.5-0.12.1.121.jarjei-1.16.5-7.7.0.106.jarForgeEndertech-1.16.4-7.1.0.0-build.0075.jarextcaves-2.4.jarcurios-forge-1.16.5-4.0.5.2.jarcorpse-1.16.5-1.0.5.jarAdHooks-1.16.4-6.1.5.0-build.0124.jar
    • Dude, then try to click the down arrow near "Open" then select   Java(TM) Platform SE binary then it should work or if it doesn't work then it means you don't have Java or you computer is broken.
  • Topics

  • Who's Online (See full list)

×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy.