Posts by Bamse

Quote from red51

Hmm... maybe the x or z coordinate was out of bounds? I just realized that the getLODSurfaceLevel() method has no safety checks The game works with native memory here, so if x or z is out of bounds (i.e. < 0 or >= 32), it accesses an invalid memory address which may result in a hard crash...

We'll change that with the next update, so the API will just throw a proper exception then^^

However, if you run into any other crashes (or if the method mentioned above still causes crashes despite using valid indices), please let me know

For sure that was. i think i messed initially calculate x and y of block position and because that i get out of bounds and game no check and got server crash.

Thx red51.

Lol i don't read until late after i figure how to make alone.

BTW i encountered server crash when i try to use function getLODSurfaceLevel()

I will try example from you to see if server still crash when i use function.

So i make something like this:

Quote

/**

* Calculate surface for terrain for x and y coordinates

*

* Note: This function ignore object's from ground level like construction elements and so on!. Just terrain level.

*

* @param x coordinates X

* @param z coordinates Z

* @return Z coordinate - height of terrain surface

*/

public float getSurfaceLevel(float x, float z) {

// calculate chunk position.

int cx=ChunkUtils.getChunkPositionX(x);

int cz=ChunkUtils.getChunkPositionZ(z);

// Calculate block position in chunk

int bx=ChunkUtils.getBlockPositionX(x, cx);

int bz=ChunkUtils.getBlockPositionZ(z, cz);

log.debug(" Global position (x,z): {} {} | Chunk position (x,z) : {} {} | Block position (x,z): {} {}",x,z,cx,cz,bx,bz);

// Get chunk

Chunk chunk= World.getChunk(cx, cz);

// return height (Y axis) including water

// First try: i need only a block so i use function getLODSurfaceLevel() but follow line generate exception unhandled and crash server !

//return chunk.getLODSurfaceLevel(bx, bz, true);

// second try - read all chunk terrain height 32x32

float[] terrain = chunk.getLODTerrain();

// read only block what i need

return terrain[Chunk.getTerrainIndex(bx, bz)];

}

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I tested your code. No crash! Function seems to work properly .

After i tested again my first variant. All worked fine.

I am not sure why earlier test server crashed many time with exception UNCAUGHT ...

Quote

#

# A fatal error has been detected by the Java Runtime Environment:

#

# EXCEPTION_UNCAUGHT_CXX_EXCEPTION (0xe06d7363) at pc=0x00007ffb8fb3cb69, pid=18844, tid=14684

#

# JRE version: OpenJDK Runtime Environment (20.0+36) (build 20+36-2344)

# Java VM: OpenJDK 64-Bit Server VM (20+36-2344, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)

# Problematic frame:

# C [KERNELBASE.dll+0x2cb69]

#

# No core dump will be written. Minidumps are not enabled by default on client versions of Windows

#

# If you would like to submit a bug report, please visit:

# https://bugreport.java.com/bugreport/crash.jsp

# The crash happened outside the Java Virtual Machine in native code.

# See problematic frame for where to report the bug.

#

--------------- S U M M A R Y ------------

Command Line: -Xmx1024M -Xms32M -Xss1M -XX:MaxDirectMemorySize=256M -XX:-OmitStackTraceInFastThrow

Host: AMD Ryzen 9 5900X 12-Core Processor , 24 cores, 31G, Windows 10 , 64 bit Build 19041 (10.0.19041.2788)

Time: Wed Apr 26 20:57:28 2023 GTB Daylight Time elapsed time: 156.669495 seconds (0d 0h 2m 36s)

--------------- T H R E A D ---------------

Current thread (0x0000023415380520): JavaThread "Thread-0" daemon [_thread_in_native, id=14684, stack(0x000000ad87300000,0x000000ad87400000)]

Stack: [0x000000ad87300000,0x000000ad87400000], sp=0x000000ad873fe6d0, free space=1017k

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)

C [KERNELBASE.dll+0x2cb69]

C [GameAssembly.dll+0x47a3a0]

C [GameAssembly.dll+0x3a9c3c]

C [GameAssembly.dll+0x3a9d23]

C [GameAssembly.dll+0x44f2f9]

C [GameAssembly.dll+0x16a01c2]

C [GameAssembly.dll+0x2cb1bc]

C 0x0000023403771ff3

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)

j net.risingworld.api.objects.world.Chunk.getLODSurfaceLevel(IIIIZ)F+0

j net.risingworld.api.objects.world.Chunk.getLODSurfaceLevel(IIZ)F+12

j bamse.rw.HelloWorld.showChunkData(Lnet/risingworld/api/objects/Player;)V+81

j bamse.rw.HelloWorld.keyInput(Lnet/risingworld/api/events/player/PlayerKeyEvent;)V+95

j java.lang.invoke.DirectMethodHandle$Holder.invokeVirtual(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)V+11 java.base@20

j java.lang.invoke.LambdaForm$MH+0x00000008010bf800.invoke(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;+52 java.base@20

J 1309 c2 net.jiw.unity.runtime.PluginEventHandler.triggerEvent(Lnet/risingworld/api/events/Event;)Z (388 bytes) @ 0x0000023403f03938 [0x0000023403f02dc0+0x0000000000000b78]

v ~StubRoutines::call_stub 0x000002340375100d

siginfo: EXCEPTION_UNCAUGHT_CXX_EXCEPTION (0xe06d7363), ExceptionInformation=0x0000000019930520 0x000000ad873fe850 0x00007ffae13b9988 0x00007ffade130000

Registers:

RAX=0x00007ffae47f6381, RBX=0x00007ffae13b9988, RCX=0x00007ffae53dc980, RDX=0x00000233804d5d90

RSP=0x000000ad873fe6d0, RBP=0x000000ad873fe9c8, RSI=0x000000ad873fe850, RDI=0x0000000019930520

R8 =0x0000000000000000, R9 =0x00007ffa00000000, R10=0x0000000000000002, R11=0x0000000000000000

R12=0x0000000000000000, R13=0x0000023411055280, R14=0x000000ad873fea10, R15=0x0000023415380520

RIP=0x00007ffb8fb3cb69, EFLAGS=0x0000000000000206

.....

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Hi.

I want to make a function in API to teleport player on location (x,z), let say function teleport_to_surface(x,z). For this i need to calculate a safe Y value so player don't teleport underground or on high and fall to death. So require is to teleport on ground on terrain or if is any building block here, on top of it.

Any can have a idea to accomplish that?

First try was to use function raycastFromWorldPosition(...) but this have serious limitless like chunk when i want to teleport need to be rendered on client side and if teleport far away or on unexplored world .. this approach do not function.

For second try i think to read somehow position of Z direct from chunk data, but here i am stuck i don't have idea how i can do that. Moreover what happen if i want to work with a chunk which was not yet generated by server ...

Thx in advance for hints!

It's the case yahwho say. Survival. I make like other time: just planted and go away in other zone for a few days. When i come back nothing grow, but in same time i collect apples from some wild apple tree and they already have another apples in less 24h. I plant again a apple tree to see tomorrow if grow. BTW all apples tree are one protected area if this matter. And i collect some corn too. This, same like apple tree, don't make another corn. And apple tree and corn are planted at least from Sunday if remember correctly.

EDIT: I just check and apple tree, planted yesterday, are mature now with apples. That in around 12h. Still others, stuck on grow, apple tree and corn are the same: apple tree in some stage of grow and mature apple tree and corn not make another apple, corn.

It's like in some cases plants forget to grow. it happens to remains in sap stage, or in some grow stage. In first case collect sap and replant usually fix grow but in latter you lose sap if plant is apple tree for example. And this happen too with mature apple tree or corn. Collect it and it's a chance to not start to make apple or corn again.

This will be wonderfully. Just append a line to file, not replace all file and all will be fine.

Quote from red51

Wow, this is amazing and a very creative solution! Well done!

Hi!

In meantime i found a solution for windows too. Same OCR software and awk for cleaning, but another setup for capture.

I just dreams , as red51, put a configurabile key bind who just throw a line with x,y,z into a file when player press it!

Bamse