版本信息
Minecraft版本: 1.12.2
错误情况简述
如何使用FakePlayer，破坏一个方块。
报错日志
---- Minecraft Crash Report ----
// You're mean.
Time: 2/29/20 9:54 AM
Description: Ticking player
java.lang.NullPointerException: Ticking player
at net.minecraftforge.common.ForgeHooks.onBlockBreakEvent(ForgeHooks.java:844)
at net.minecraft.server.management.PlayerInteractionManager.tryHarvestBlock(PlayerInteractionManager.java:309)
at com.example.examplemod.task.BlockRemovingTask.apply(BlockRemovingTask.java:17)
at com.example.examplemod.Faker.onUpdate(Faker.java:36)
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2186)
at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:871)
at net.minecraft.world.World.updateEntity(World.java:2145)
at net.minecraft.world.WorldServer.tickPlayers(WorldServer.java:672)
at net.minecraft.world.World.updateEntities(World.java:1921)
at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:643)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:842)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592)
at java.lang.Thread.run(Thread.java:748)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Server thread
Stacktrace:
at net.minecraftforge.common.ForgeHooks.onBlockBreakEvent(ForgeHooks.java:844)
at net.minecraft.server.management.PlayerInteractionManager.tryHarvestBlock(PlayerInteractionManager.java:309)
at com.example.examplemod.task.BlockRemovingTask.apply(BlockRemovingTask.java:17)
at com.example.examplemod.Faker.onUpdate(Faker.java:36)
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:2186)
at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:871)
at net.minecraft.world.World.updateEntity(World.java:2145)
-- Player being ticked --
Details:
Entity Type: null (com.example.examplemod.Faker)
Entity ID: 2
Entity Name: tosunfaker
Entity's Exact location: 32.50, 45.00, 32.50
Entity's Block location: World: (32,45,32), Chunk: (at 0,2,0 in 2,2; contains blocks 32,0,32 to 47,255,47), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Entity's Momentum: 0.00, 0.00, 0.00
Entity's Passengers: []
Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
at net.minecraft.world.WorldServer.tickPlayers(WorldServer.java:672)
at net.minecraft.world.World.updateEntities(World.java:1921)
at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:643)
-- Affected level --
Details:
Level name: 新的世界
All players: 2 total; [EntityPlayerMP['Player351'/0, l='新的世界', x=43.83, y=45.00, z=31.78], Faker['tosunfaker'/2, l='新的世界', x=32.50, y=45.00, z=32.50]]
Chunk stats: ServerChunkCache: 256 Drop: 0
Level seed: -5077820683368517982
Level generator: ID 06 - light_void, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (32,45,32), Chunk: (at 0,2,0 in 2,2; contains blocks 32,0,32 to 47,255,47), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 1450 game time, 1450 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 83772 (now: false), thunder time: 55433 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:842)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592)
at java.lang.Thread.run(Thread.java:748)
-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_231, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 680905408 bytes (649 MB) / 1171783680 bytes (1117 MB) up to 3795845120 bytes (3620 MB)
JVM Flags: 0 total;
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.5.2847 5 mods loaded, 5 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
| State | ID | Version | Source | Signature |
|:------ |:--------- |:------------ |:-------------------------------- |:--------- |
| LCHIJA | minecraft | 1.12.2 | minecraft.jar | None |
| LCHIJA | mcp | 9.42 | minecraft.jar | None |
| LCHIJA | FML | 8.0.99.99 | forgeSrc-1.12.2-14.23.5.2847.jar | None |
| LCHIJA | forge | 14.23.5.2847 | forgeSrc-1.12.2-14.23.5.2847.jar | None |
| LCHIJA | tosun | 1.0 | 1.12.2 | None |
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['Player351'/0, l='新的世界', x=43.83, y=45.00, z=31.78]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'
相关代码
Faker
package com.example.examplemod;
import com.example.examplemod.task.Task;
import com.mojang.authlib.GameProfile;
import net.minecraft.world.World;
import net.minecraft.world.WorldServer;
import net.minecraftforge.common.util.FakePlayer;
import java.util.LinkedList;
import java.util.Queue;
import java.util.UUID;
public class Faker extends FakePlayer {
public static final GameProfile GP = new GameProfile(UUID.fromString("58a707fe-2d47-409a-9c8a-9a7cf81edf29"), ExampleMod.MODID + "faker");
public Queue<Task> tasks = new LinkedList<>();
public int dps = 5;
public static Faker fakePlayer = null;
public Faker(World world) {
super((WorldServer) world, GP);
}
public boolean isCreative()
{
return true;
}
@Override
public void onUpdate() {
for (int i = 0; i < dps; i++) {
Task t = tasks.poll();
if (t != null) {
t.apply(this);
} else {
return;
}
}
}
public void addTask(Task t){
tasks.offer(t);
}
public static Faker getFakePlayer(WorldServer server)
{
if (fakePlayer == null)
{
fakePlayer = new Faker(server);
server.spawnEntity(fakePlayer);
}
return fakePlayer;
}
}
BlockRemovingTask
package com.example.examplemod.task;
import net.minecraft.util.math.BlockPos;
import net.minecraftforge.common.util.FakePlayer;
public class BlockRemovingTask implements Task {
private BlockPos pos;
public BlockRemovingTask(BlockPos pos){
this.pos = pos;
}
@Override
public void apply(FakePlayer player) {
player.interactionManager.tryHarvestBlock(pos);//这里
}
}
其他
可能是服务端实体向客户端发包导致崩溃。