Save Entity Data on tile entity

[hsgill97@gmail.com]

I have this "AlienCell" that is a tileEntity. I want to capture any entity that hits the block.I already have it setup, It crashes when saving though.

 

TileEntity

 

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public class TileEntityAlienCell extends TileEntity {
public boolean empty=true;
public Entity mob;
@Override
public void readFromNBT(NBTTagCompound compound) {
	super.readFromNBT(compound);
	empty=compound.getBoolean("empty");
	if(!empty)
		mob=EntityList.createEntityFromNBT(compound.getCompoundTag("mob"), worldObj);

}

@Override
public void writeToNBT(NBTTagCompound compound) {
	super.writeToNBT(compound);
	NBTTagCompound EntityNBT=new NBTTagCompound();
	if(!empty)
		mob.writeToNBTOptional(EntityNBT);
	compound.setBoolean("empty", empty);
	compound.setTag("mob", EntityNBT);
        
}
}

 

 

Block

 

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public class AlienCell extends BlockContainer {

public AlienCell() {
	super(Material.iron);
	this.setCreativeTab(Main.aliensTabTech);
	this.setHardness(12.0F);
	this.setCellBounds();

}

@Override
public void onEntityCollidedWithBlock(World worldIn, BlockPos pos, IBlockState state, Entity entityIn) {

	TileEntityAlienCell cell = (TileEntityAlienCell) worldIn.getTileEntity(pos);
	if (entityIn.ridingEntity == null && entityIn.riddenByEntity == null) {
		if (entityIn instanceof EntityPlayerMP) {

		} else {
			cell.mob.copyDataFromOld(entityIn);
			cell.empty=false;
		}
	}

}


public void setBlockBoundsBasedOnState(IBlockAccess worldIn, BlockPos pos) {
	this.setCellBounds();
}

private void setCellBounds() {
	this.setBlockBounds(-1.064F, 0.0F, -0.56F, 1.06F, 2.85F, 1.25F);
}

public int getRenderType() {
	return -1;
}

public boolean isOpaqueCube() {
	return false;
}

public boolean renderAsNormalBlock() {
	return false;
}

@Override
public TileEntity createNewTileEntity(World p_149915_1_, int p_149915_2_) {
	return new TileEntityAlienCell();
}

}

 

 

Crash

 

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---- Minecraft Crash Report ----

// Ouch. That hurt

 

Time: 11/12/15 4:58 PM

Description: Colliding entity with block

 

java.lang.NullPointerException: Colliding entity with block

at com.madmodding.space.blocks.AlienCell.onEntityCollidedWithBlock(AlienCell.java:57)

at net.minecraft.entity.Entity.doBlockCollisions(Entity.java:924)

at net.minecraft.entity.Entity.moveEntity(Entity.java:850)

at net.minecraft.entity.EntityLivingBase.moveEntityWithHeading(EntityLivingBase.java:1699)

at net.minecraft.entity.EntityLivingBase.onLivingUpdate(EntityLivingBase.java:2026)

at net.minecraft.entity.EntityLiving.onLivingUpdate(EntityLiving.java:449)

at net.minecraft.entity.EntityAgeable.onLivingUpdate(EntityAgeable.java:173)

at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1828)

at net.minecraft.entity.EntityLiving.onUpdate(EntityLiving.java:273)

at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2031)

at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:758)

at net.minecraft.world.World.updateEntity(World.java:1997)

at net.minecraft.world.World.updateEntities(World.java:1823)

at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:587)

at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:775)

at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:669)

at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:171)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:540)

at java.lang.Thread.run(Unknown Source)

 

 

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

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

 

-- Head --

Stacktrace:

at com.madmodding.space.blocks.AlienCell.onEntityCollidedWithBlock(AlienCell.java:57)

 

-- Block being collided with --

Details:

Block: space:alienCell

Block location: World: (-640,4,-1553), Chunk: (at 0,0,15 in -40,-98; contains blocks -640,0,-1568 to -625,255,-1553), Region: (-2,-4; contains chunks -64,-128 to -33,-97, blocks -1024,0,-2048 to -513,255,-1537)

Stacktrace:

at net.minecraft.entity.Entity.doBlockCollisions(Entity.java:924)

 

-- Entity being checked for collision --

Details:

Entity Type: Villager (net.minecraft.entity.passive.EntityVillager)

Entity ID: 230623

Entity Name: Villager

Entity's Exact location: -639.50, 4.67, -1553.29

Entity's Block location: -640.00,4.00,-1554.00 - World: (-640,4,-1554), Chunk: (at 0,0,14 in -40,-98; contains blocks -640,0,-1568 to -625,255,-1553), Region: (-2,-4; contains chunks -64,-128 to -33,-97, blocks -1024,0,-2048 to -513,255,-1537)

Entity's Momentum: 0.00, 0.04, 0.06

Entity's Rider: ~~ERROR~~ NullPointerException: null

Entity's Vehicle: ~~ERROR~~ NullPointerException: null

Stacktrace:

at net.minecraft.entity.Entity.moveEntity(Entity.java:850)

at net.minecraft.entity.EntityLivingBase.moveEntityWithHeading(EntityLivingBase.java:1699)

at net.minecraft.entity.EntityLivingBase.onLivingUpdate(EntityLivingBase.java:2026)

at net.minecraft.entity.EntityLiving.onLivingUpdate(EntityLiving.java:449)

at net.minecraft.entity.EntityAgeable.onLivingUpdate(EntityAgeable.java:173)

at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1828)

at net.minecraft.entity.EntityLiving.onUpdate(EntityLiving.java:273)

at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2031)

at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:758)

at net.minecraft.world.World.updateEntity(World.java:1997)

 

-- Entity being ticked --

Details:

Entity Type: Villager (net.minecraft.entity.passive.EntityVillager)

Entity ID: 230623

Entity Name: Villager

Entity's Exact location: -639.50, 4.67, -1553.29

Entity's Block location: -640.00,4.00,-1554.00 - World: (-640,4,-1554), Chunk: (at 0,0,14 in -40,-98; contains blocks -640,0,-1568 to -625,255,-1553), Region: (-2,-4; contains chunks -64,-128 to -33,-97, blocks -1024,0,-2048 to -513,255,-1537)

Entity's Momentum: 0.00, 0.04, 0.06

Entity's Rider: ~~ERROR~~ NullPointerException: null

Entity's Vehicle: ~~ERROR~~ NullPointerException: null

Stacktrace:

at net.minecraft.world.World.updateEntities(World.java:1823)

at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:587)

 

-- Affected level --

Details:

Level name: New World

All players: 1 total; [EntityPlayerMP['Arideus'/26, l='New World', x=-638.38, y=5.00, z=-1556.23]]

Chunk stats: ServerChunkCache: 1347 Drop: 0

Level seed: 1319145234

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

Level generator options:

Level spawn location: -633.00,4.00,-1546.00 - World: (-633,4,-1546), Chunk: (at 7,0,6 in -40,-97; contains blocks -640,0,-1552 to -625,255,-1537), Region: (-2,-4; contains chunks -64,-128 to -33,-97, blocks -1024,0,-2048 to -513,255,-1537)

Level time: 795 game time, 795 day time

Level dimension: 0

Level storage version: 0x04ABD - Anvil

Level weather: Rain time: 46645 (now: false), thunder time: 162414 (now: false)

Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true

Stacktrace:

at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:775)

at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:669)

at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:171)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:540)

at java.lang.Thread.run(Unknown Source)

 

-- System Details --

Details:

Minecraft Version: 1.8

Operating System: Windows 10 (amd64) version 10.0

Java Version: 1.8.0_65, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 3876190920 bytes (3696 MB) / 4260102144 bytes (4062 MB) up to 4260102144 bytes (4062 MB)

JVM Flags: 3 total; -Xincgc -Xmx4096M -Xms4096M

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

FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1561 4 mods loaded, 4 mods active

States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)

UCHIJAAAA FML{8.0.99.99} [Forge Mod Loader] (forgeSrc-1.8-11.14.3.1561.jar)

UCHIJAAAA Forge{11.14.3.1561} [Minecraft Forge] (forgeSrc-1.8-11.14.3.1561.jar)

UCHIJAAAA space{0.1.8} [beyondSolar] (bin)

Loaded coremods (and transformers):

GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.

Profiler Position: N/A (disabled)

Player Count: 1 / 8; [EntityPlayerMP['Arideus'/26, l='New World', x=-638.38, y=5.00, z=-1556.23]]

Type: Integrated Server (map_client.txt)

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

 

 

[hsgill97@gmail.com]

I tried and I get a crash. I updated main post with the code and crash report. I tested it with a villager by having water push the villager into the block.

 

looking at report null pointer from

 

Entity's Rider: ~~ERROR~~ NullPointerException: null

Entity's Vehicle: ~~ERROR~~ NullPointerException: null

[hsgill97@gmail.com]

I use copydataold to copy the information from the entityIn to cell.mob(i'll try cell.mob=entityIn). I don't know what to initialize as because the entity could be a creeper villager or any other mob.