[Solved][1.7.10] Extending EntityFallingBlock

Blargerist · January 11, 2015

Created a base extension of EntityFallingBlock before I start overriding anything, to be sure everything works and I have a stable baseline.

public class EntityMovingBlock extends EntityFallingBlock

{
public EntityMovingBlock(World p_i1706_1_)
{
	super(p_i1706_1_);
}

public EntityMovingBlock(World p_i45318_1_, double p_i45318_2_, double p_i45318_4_, double p_i45318_6_, Block p_i45318_8_)
{
	super(p_i45318_1_, p_i45318_2_, p_i45318_4_, p_i45318_6_, p_i45318_8_);
}

public EntityMovingBlock(World p_i45319_1_, double p_i45319_2_, double p_i45319_4_, double p_i45319_6_, Block p_i45319_8_, int p_i45319_9_)
{
	super(p_i45319_1_, p_i45319_2_, p_i45319_4_, p_i45319_6_, p_i45319_8_, p_i45319_9_);
}
}

Register it:

	EntityRegistry.registerModEntity(EntityMovingBlock.class, "entityMovingBlock", 1, instance, ModConfig.fallRange + 50, 3, true);

Test run comes up with a crash when I create one, even though I've changed nothing from the vanilla class.

EntityMovingBlock entityfallingblock = new EntityMovingBlock(world, (double) ((float) x + 0.5F), (double) ((float) y + 0.5F), (double) ((float) z + 0.5F), block, meta);
entityfallingblock.func_145806_a(true);
world.spawnEntityInWorld(entityfallingblock);

java.lang.NullPointerException: Ticking entity

at net.minecraft.entity.item.EntityFallingBlock.func_70071_h_(SourceFile:74)

at net.minecraft.world.World.func_72866_a(World.java:2070)

at net.minecraft.world.World.func_72870_g(World.java:2034)

at net.minecraft.world.World.func_72939_s(World.java:1887)

at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1995)

at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)

at net.minecraft.client.main.Main.main(SourceFile:148)

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:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

public void onUpdate()

{

if (this.field_145811_e.getMaterial() == Material.air)

"field_145811_e" being the Block for the EntityFallingBlock

In my mind this point towards an instance of my entity being created using the <init>(World) method for some odd reason. Changing that method to private came up with an error pointing towards where it was being called from: (a forge method out of my control)

[15:03:24] [Client thread/ERROR] [FML/]: A severe problem occurred during the spawning of an entity

java.lang.NoSuchMethodException: blargerist.cake.blockphysics.entities.EntityMovingBlock.<init>(net.minecraft.world.World)

at java.lang.Class.getConstructor0(Class.java:2892) ~[?:1.7.0_71]

at java.lang.Class.getConstructor(Class.java:1723) ~[?:1.7.0_71]

at cpw.mods.fml.common.network.internal.EntitySpawnHandler.spawnEntity(EntitySpawnHandler.java:72) [EntitySpawnHandler.class:?]

at cpw.mods.fml.common.network.internal.EntitySpawnHandler.channelRead0(EntitySpawnHandler.java:34) [EntitySpawnHandler.class:?]

at cpw.mods.fml.common.network.internal.EntitySpawnHandler.channelRead0(EntitySpawnHandler.java:28) [EntitySpawnHandler.class:?]

at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) [simpleChannelInboundHandler.class:?]

at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]

at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]

at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [MessageToMessageDecoder.class:?]

at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) [MessageToMessageCodec.class:?]

at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]

at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]

at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChannelPipeline.class:?]

at io.netty.channel.embedded.EmbeddedChannel.writeInbound(EmbeddedChannel.java:169) [EmbeddedChannel.class:?]

at cpw.mods.fml.common.network.internal.FMLProxyPacket.func_148833_a(FMLProxyPacket.java:77) [FMLProxyPacket.class:?]

at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) [ej.class:?]

at net.minecraft.client.multiplayer.PlayerControllerMP.func_78765_e(PlayerControllerMP.java:273) [bje.class:?]

at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1591) [bao.class:?]

at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962) [bao.class:?]

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887) [bao.class:?]

at net.minecraft.client.main.Main.main(SourceFile:148) [Main.class:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_71]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_71]

at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_71]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]

[15:03:24] [Client thread/ERROR] [FML/]: EntitySpawnHandler exception

java.lang.RuntimeException: java.lang.NoSuchMethodException: blargerist.cake.blockphysics.entities.EntityMovingBlock.<init>(net.minecraft.world.World)

at com.google.common.base.Throwables.propagate(Throwables.java:160) ~[guava-16.0.jar:?]

at cpw.mods.fml.common.network.internal.EntitySpawnHandler.spawnEntity(EntitySpawnHandler.java:121) ~[EntitySpawnHandler.class:?]

at cpw.mods.fml.common.network.internal.EntitySpawnHandler.channelRead0(EntitySpawnHandler.java:34) ~[EntitySpawnHandler.class:?]

at cpw.mods.fml.common.network.internal.EntitySpawnHandler.channelRead0(EntitySpawnHandler.java:28) ~[EntitySpawnHandler.class:?]

at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) ~[simpleChannelInboundHandler.class:?]