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[SOLVED][1.6.4]Game Crash if Chestplate not equipped while other 3 pieces are

By The_Fireplace
February 22, 2014 in Modder Support

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https://forums.minecraftforge.net/topic/16537-solved164game-crash-if-chestplate-not-equipped-while-other-3-pieces-are/

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Creeper Killer

The_Fireplace

Posted February 22, 2014

Posted February 22, 2014

My game crashes with the following error only if my chestplate isn't worn while the other 3 pieces of the armor set are:

---- Minecraft Crash Report ----

// Uh... Did I do that?

Time: 2/21/14 11:32 PM

Description: Ticking entity

java.lang.NullPointerException

at devonmod.armor.FireArmor.onArmorTickUpdate(FireArmor.java:79)

at net.minecraft.entity.player.InventoryPlayer.decrementAnimations(InventoryPlayer.java:367)

at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:606)

at net.minecraft.client.entity.EntityPlayerSP.onLivingUpdate(EntityPlayerSP.java:307)

at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1826)

at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:342)

at net.minecraft.client.entity.EntityClientPlayerMP.onUpdate(EntityClientPlayerMP.java:78)

at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2350)

at net.minecraft.world.World.updateEntity(World.java:2311)

at net.minecraft.world.World.updateEntities(World.java:2157)

at net.minecraft.client.Minecraft.runTick(Minecraft.java:1921)

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:910)

at net.minecraft.client.Minecraft.run(Minecraft.java:838)

at net.minecraft.client.main.Main.main(Main.java:93)

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:131)

at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

-- Head --

Stacktrace:

at devonmod.armor.FireArmor.onArmorTickUpdate(FireArmor.java:79)

at net.minecraft.entity.player.InventoryPlayer.decrementAnimations(InventoryPlayer.java:367)

at net.minecraft.entity.player.EntityPlayer.onLivingUpdate(EntityPlayer.java:606)

at net.minecraft.client.entity.EntityPlayerSP.onLivingUpdate(EntityPlayerSP.java:307)

at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1826)

at net.minecraft.entity.player.EntityPlayer.onUpdate(EntityPlayer.java:342)

at net.minecraft.client.entity.EntityClientPlayerMP.onUpdate(EntityClientPlayerMP.java:78)

at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2350)

at net.minecraft.world.World.updateEntity(World.java:2311)

-- Entity being ticked --

Details:

Entity Type: null (net.minecraft.client.entity.EntityClientPlayerMP)

Entity ID: 33

Entity Name: Player127

Entity's Exact location: 209.50, 5.62, -1383.50

Entity's Block location: World: (209,5,-1384), Chunk: (at 1,0,8 in 13,-87; contains blocks 208,0,-1392 to 223,255,-1377), Region: (0,-3; contains chunks 0,-96 to 31,-65, blocks 0,0,-1536 to 511,255,-1025)

Entity's Momentum: 0.00, -0.08, 0.00

Stacktrace:

at net.minecraft.world.World.updateEntities(World.java:2157)

-- Affected level --

Details:

Level name: MpServer

All players: 1 total; [EntityClientPlayerMP['Player127'/33, l='MpServer', x=209.50, y=5.62, z=-1383.50]]

Chunk stats: MultiplayerChunkCache: 441

Level seed: 0

Level generator: ID 01 - flat, ver 0. Features enabled: false

Level generator options:

Level spawn location: World: (213,4,-1388), Chunk: (at 5,0,4 in 13,-87; contains blocks 208,0,-1392 to 223,255,-1377), Region: (0,-3; contains chunks 0,-96 to 31,-65, blocks 0,0,-1536 to 511,255,-1025)

Level time: 314 game time, 314 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: 1 total; [EntityClientPlayerMP['Player127'/33, l='MpServer', x=209.50, y=5.62, z=-1383.50]]

Retry entities: 0 total; []

Server brand: fml,forge

Server type: Integrated singleplayer server

Stacktrace:

at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:440)

at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2312)

at net.minecraft.client.Minecraft.run(Minecraft.java:856)

at net.minecraft.client.main.Main.main(Main.java:93)

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:131)

at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --

Details:

Minecraft Version: 1.6.4

Operating System: Windows 7 (x86) version 6.1

Java Version: 1.7.0_51, Oracle Corporation

Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation

Memory: 762825576 bytes (727 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)

JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M

AABB Pool Size: 11635 (651560 bytes; 0 MB) allocated, 5 (280 bytes; 0 MB) used

Suspicious classes: FML and Forge are installed

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 9 mods loaded, 9 mods active

mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

FML{6.4.49.965} [Forge Mod Loader] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge{9.11.1.965} [Minecraft Forge] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

betterrecipes{1.0} [better Recipes] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

devonmod{4.8} [DevonMod] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

MechPistons{1.1} [Mech Pistons] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

mobrebirth{1.1} [mobrebirth] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

newstructures{dev1.0} [New Structures] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

nothing{1.0} [Nothing] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Launched Version: 1.6

LWJGL: 2.9.0

OpenGL: GeForce GT 620/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Pack: Default

Current Language: English (US)

Profiler Position: N/A (disabled)

Vec3 Pool Size: 49 (2744 bytes; 0 MB) allocated, 12 (672 bytes; 0 MB) used

And here is the class for that set of armor:

package devonmod.armor;

import devonmod.ModBase;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.EnumArmorMaterial;
import net.minecraft.item.Item;
import net.minecraft.item.ItemArmor;
import net.minecraft.item.ItemStack;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.world.World;

public class FireArmor extends ItemArmor
{
    public FireArmor(int par1, EnumArmorMaterial par2EnumArmorMaterial,
                     int par3, int par4, String armornamePrefix)
    {
        super(par1, par2EnumArmorMaterial, par3, par4);
        this.material = par2EnumArmorMaterial;
        par2EnumArmorMaterial.getDamageReductionAmount(par4);
        this.setMaxDamage(par2EnumArmorMaterial.getDurability(par4));
        this.maxStackSize = 1;
        this.setCreativeTab(ModBase.TabDevonMod);
        armorNamePrefix = armornamePrefix;
    }
    public String armorNamePrefix;
    public EnumArmorMaterial material;
    @Override
    public boolean getIsRepairable(ItemStack tool, ItemStack material) {
    	return material.itemID == ModBase.fireCore.itemID;
    }
    public String getArmorTexture(ItemStack stack, Entity entity, int slot, int layer)
    {
        if (stack.toString().contains("leggings"))
        {
            return "devonmod:textures/models/armor/fire2.png";
        }

        if (stack.toString().contains("Leggings")) if (itemID == ModBase.FireLeggings.itemID)
            {
                return "devonmod:textures/models/armor/fire2.png";
            }

        return "devonmod:textures/models/armor/fire1.png";
    }
    public void registerIcons(IconRegister par1iconRegister)
    {
        if (itemID == ModBase.FireHelmet.itemID)
        {
            itemIcon = par1iconRegister.registerIcon("devonmod:FireHelmet");
        }

        if (itemID == ModBase.FireChestplate.itemID)
        {
            itemIcon = par1iconRegister.registerIcon("devonmod:FireChestplate");
        }

        if (itemID == ModBase.FireLeggings.itemID)
        {
            itemIcon = par1iconRegister.registerIcon("devonmod:FireLeggings");
        }

        if (itemID == ModBase.FireBoots.itemID)
        {
            itemIcon = par1iconRegister.registerIcon("devonmod:FireBoots");
        }
    }
    @Override
    public void onArmorTickUpdate(World world, EntityPlayer player, ItemStack itemStack) {
    	if (player.getCurrentItemOrArmor(4) != null && player.getCurrentArmor(3) != null && player.getCurrentItemOrArmor(2) != null && player.getCurrentItemOrArmor(1) != null) {
		ItemStack helmet = player.getCurrentItemOrArmor(4);
		ItemStack plate = player.getCurrentItemOrArmor(3);
		ItemStack legs = player.getCurrentItemOrArmor(2);
		ItemStack boots = player.getCurrentItemOrArmor(1); 

		if (helmet.getItem() == ModBase.FireHelmet && plate.getItem() == ModBase.FireChestplate && legs.getItem() == ModBase.FireLeggings && boots.getItem() == ModBase.FireBoots) {
			player.addPotionEffect((new PotionEffect(Potion.fireResistance.getId(), 400, 0)));
		}
		if (helmet.getItem() == ModBase.FireHelmet) {
			player.addPotionEffect((new PotionEffect(Potion.nightVision.getId(), 400, 0)));
		}
		if (legs.getItem() == ModBase.FireLeggings) {
			player.addPotionEffect((new PotionEffect(Potion.moveSpeed.getId(), 400, 0)));
		}
	}
    }

}

What do I need to add/change to fix it?

Let me know if I left anything out of the post, I will edit it in.

If I helped please press the Thank You button.

Check out my mods at http://www.curse.com/users/The_Fireplace/projects

coolAlias

Reality Controller

coolAlias

Posted February 22, 2014

Posted February 22, 2014

You mixed up the methods:

// this method uses 0-3 for the armor slots, rather than 1-4
player.getCurrentArmor(3) != null

Whereas all the rest you use getCurrentItemOrArmor, for which 0 is the held item and 1-4 are armor slots.

width=228 height=100

http://i.imgur.com/NdrFdld.png[/img]

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