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[1.7.2]ItemStact instanceof ItemFood Crash[SOLVED]

Posted July 4, 201411 yr

Hello

how do i make the itemstack make instanceof ItemFood it seems i crash and i dont knowwhats exactly making it wrong heres my code anyway

ItemStack food = player.getCurrentEquippedItem();
if(food.getItem() instanceof ItemFood){
			int i = foods.getMaxItemUseDuration(food);
			i = 16;
			}

By the way im making the food duration short if my armor set is worn in short it makes the player eat fast

Quote

July 4, 201411 yr

Author

Thanks so much bro now last question please . how do i make the item duration on use shorter i mean the item that is on right click will iniate shorter

I did this and it crash once again

int i = foods.getMaxItemUseDuration(itemstack);
			i = 16;

Quote

July 4, 201411 yr

You created an int that equals the item max use duration and than its equals 16.

Also crash log can be useful in SPOILER TAG!

Quote

July 4, 201411 yr

Author

Heres the crash


net.minecraft.util.ReportedException: Ticking entity
at net.minecraft.world.World.updateEntities(World.java:2079) ~[World.class:?]
at net.minecraft.client.Minecraft.runTick(Minecraft.java:2064) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:996) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:912) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:112) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_05]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_05]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_05]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_05]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
Caused by: java.lang.NullPointerException
at mhfc.net.common.item.armor.TigrexArmor.onArmorTick(TigrexArmor.java:109) ~[TigrexArmor.class:?]
at net.minecraft.entity.player.InventoryPlayer.decrementAnimations(InventoryPlayer.java:357) ~[inventoryPlayer.class:?]
at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:625) ~[EntityPlayer.class:?]
at net.minecraft.client.entity.EntityPlayerSP.onLivingUpdate(EntityPlayerSP.java:299) ~[EntityPlayerSP.class:?]
at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1820) ~[EntityLivingBase.class:?]
at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:342) ~[EntityPlayer.class:?]
at net.minecraft.client.entity.EntityClientPlayerMP.onUpdate(EntityClientPlayerMP.java:100) ~[EntityClientPlayerMP.class:?]
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2254) ~[World.class:?]
at net.minecraft.world.World.updateEntity(World.java:2214) ~[World.class:?]
at net.minecraft.world.World.updateEntities(World.java:2064) ~[World.class:?]
... 10 more
---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 7/4/14 11:01 PM
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
at mhfc.net.common.item.armor.TigrexArmor.onArmorTick(TigrexArmor.java:109)
at net.minecraft.entity.player.InventoryPlayer.decrementAnimations(InventoryPlayer.java:357)
at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:625)
at net.minecraft.client.entity.EntityPlayerSP.onLivingUpdate(EntityPlayerSP.java:299)
at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1820)
at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:342)
at net.minecraft.client.entity.EntityClientPlayerMP.onUpdate(EntityClientPlayerMP.java:100)
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2254)
at net.minecraft.world.World.updateEntity(World.java:2214)
at net.minecraft.world.World.updateEntities(World.java:2064)
at net.minecraft.client.Minecraft.runTick(Minecraft.java:2064)
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(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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 mhfc.net.common.item.armor.TigrexArmor.onArmorTick(TigrexArmor.java:109)
at net.minecraft.entity.player.InventoryPlayer.decrementAnimations(InventoryPlayer.java:357)
at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:625)
at net.minecraft.client.entity.EntityPlayerSP.onLivingUpdate(EntityPlayerSP.java:299)
at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1820)
at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:342)
at net.minecraft.client.entity.EntityClientPlayerMP.onUpdate(EntityClientPlayerMP.java:100)
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2254)
at net.minecraft.world.World.updateEntity(World.java:2214)

-- Entity being ticked --
Details:
Entity Type: null (net.minecraft.client.entity.EntityClientPlayerMP)
Entity ID: 459
Entity Name: XxHeltratoxX
Entity's Exact location: 118.86, 5.62, -888.44
Entity's Block location: World: (118,5,-889), Chunk: (at 6,0,7 in 7,-56; contains blocks 112,0,-896 to 127,255,-881), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513)
Entity's Momentum: 0.00, 0.00, 0.00
Stacktrace:
at net.minecraft.world.World.updateEntities(World.java:2064)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['XxHeltratoxX'/459, l='MpServer', x=118.86, y=5.62, z=-888.44]]
Chunk stats: MultiplayerChunkCache: 20, 20
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options: 
Level spawn location: World: (119,4,-896), Chunk: (at 7,0,0 in 7,-56; contains blocks 112,0,-896 to 127,255,-881), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513)
Level time: 2884 game time, 2884 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: 20 total; [EntityCow['Cow'/352, l='MpServer', x=117.25, y=4.00, z=-855.47], EntityCow['Cow'/353, l='MpServer', x=121.34, y=4.00, z=-848.69], EntitySheep['Sheep'/354, l='MpServer', x=123.09, y=4.00, z=-863.06], EntitySlime['Slime'/355, l='MpServer', x=112.94, y=4.00, z=-854.03], EntityClientPlayerMP['XxHeltratoxX'/459, l='MpServer', x=118.86, y=5.62, z=-888.44], EntitySlime['Slime'/389, l='MpServer', x=151.34, y=4.00, z=-899.27], EntityChicken['Chicken'/390, l='MpServer', x=157.53, y=4.00, z=-882.56], EntityPig['Pig'/391, l='MpServer', x=155.41, y=4.00, z=-873.41], EntityChicken['Chicken'/392, l='MpServer', x=156.56, y=4.00, z=-877.47], EntityChicken['Chicken'/393, l='MpServer', x=149.63, y=4.00, z=-862.41], EntitySlime['Slime'/334, l='MpServer', x=97.52, y=4.00, z=-880.38], EntitySlime['Slime'/335, l='MpServer', x=109.88, y=4.00, z=-875.19], EntitySlime['Slime'/367, l='MpServer', x=139.78, y=4.00, z=-900.84], EntitySheep['Sheep'/368, l='MpServer', x=131.81, y=4.00, z=-848.63], EntitySlime['Slime'/336, l='MpServer', x=104.50, y=4.00, z=-860.28], EntitySlime['Slime'/337, l='MpServer', x=99.13, y=4.00, z=-863.66], EntitySheep['Sheep'/313, l='MpServer', x=82.09, y=4.00, z=-852.06], EntitySheep['Sheep'/314, l='MpServer', x=80.09, y=4.00, z=-848.97], EntitySlime['Slime'/350, l='MpServer', x=123.41, y=4.77, z=-902.63], EntitySlime['Slime'/351, l='MpServer', x=114.26, y=4.00, z=-888.39]]
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:2523)
at net.minecraft.client.Minecraft.run(Minecraft.java:934)
at net.minecraft.client.main.Main.main(Main.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Whats bad about making the item max duration into 16 . Dint it got reduced?

Quote

July 4, 201411 yr

Author

Here

@Override
public void onArmorTick(World world, EntityPlayer player, ItemStack itemstack) {
ItemStack food = player.getCurrentEquippedItem();
if(food != null &&food.getItem() instanceof ItemFood){
			int i = foods.getMaxItemUseDuration(itemstack) - 16;  // <--- StrackTrace
			}

}

Quote

July 4, 201411 yr

Author

private ItemFood foods

Quote

July 5, 201411 yr

Author

Hey im back sorry i overslept.

Im really dont know how to set this Item Food because if i set it into contructor it adds argumets


private ItemFoods FOODS = new ItemFoods(int, boolean);

And here is i really dont know what will i do


private ItemFoods FOODS = FOODS. //<-----  i dont know what to set

Quote

July 5, 201411 yr

Assuming you inherit from

ItemFood

, the

int

and the

boolean

are

healAmount

and

saturationModifier

, respectively. Set them however you please

Quote

July 5, 201411 yr

Author

Uhm what i mean is lessing the consume time of the ItemFoods

Quote

July 5, 201411 yr

Override

getMaxItemUseDuration

in your descendant of the

ItemFood

class.

Quote

July 5, 201411 yr

I'm not at my computer but try something like

Food.getItem.getvariablethatstoreslength = Food.getItem.getvariablethatstoreslength - 16;

Quote

July 5, 201411 yr

Author

Yes the crash is gone but i dont know if the consume time make it shorter this is what i did.

if(food != null &&food.getItem() instanceof ItemFood){
			int i = food.getItem().getMaxItemUseDuration(food);
			int j = 16;
			i = i - j;
			}

I removed the ItemFood foods variable since i think the food which is the current itemstack on players hand is checking if its ItemFood. and i make 2 ints and subract them both . Well it works but i dont know if it reduced the duration

Quote

July 5, 201411 yr

While Java does pass-by-reference, this is not true for primitive types such as ints.

What you are essentially doing here is this:

Store the food's max item use duration in local variable
```
i
```
Subtract 16 from
```
i
```
Discard the results and carry on

I recommend looking into Scope of variables.

You will need to make a new class for your food items, inheriting from

ItemFood

and making sure to

@Override

getMaxItemUseDuration

to make it return something specific based on what armour the consumer is wearing.

Quote

July 5, 201411 yr

That's a good explanation. You don't actually modify the length of time at all with that. I don't think that there is an easy way to do this with all foods, it's hard coded so you would have to make a core mod and then it wouldn't work for foods from mods. Elyon was right, easiest thing to do would be to make your own foods that use a variable to store eating duration.

Quote

July 6, 201411 yr

Author

Yup i think i got it i created another class that extends ItemFood , override some stuff and the duration is set if the armor is check . Thanks for helping me out guys i think this is solve Ill post a github soon so i can show you

Quote

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[1.7.2]ItemStact instanceof ItemFood Crash[SOLVED]

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