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more chunk pool codes

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minjaesong
2024-10-08 00:15:17 +09:00
parent 07b4f3bff1
commit b4523b8492
4 changed files with 56 additions and 10 deletions
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59
src/net/torvald/terrarum/gameworld/ChunkPool.kt
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@@ -1,13 +1,16 @@
package net.torvald.terrarum.gameworld
import net.torvald.terrarum.App
import net.torvald.terrarum.INGAME
import net.torvald.terrarum.Point2i
import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZE
import net.torvald.terrarum.modulecomputers.virtualcomputer.tvd.archivers.ClusteredFormatDOM
import net.torvald.terrarum.modulecomputers.virtualcomputer.tvd.archivers.Clustfile
import net.torvald.terrarum.realestate.LandUtil
import net.torvald.terrarum.realestate.LandUtil.CHUNK_H
import net.torvald.terrarum.realestate.LandUtil.CHUNK_W
import net.torvald.terrarum.savegame.DiskEntry
import net.torvald.terrarum.savegame.DiskSkimmer
import net.torvald.terrarum.savegame.EntryFile
import net.torvald.terrarum.serialise.Common
import net.torvald.terrarum.serialise.toUint
import net.torvald.unsafe.UnsafeHelper
@@ -37,7 +40,8 @@ enum class ChunkAllocClass {
* Created by minjaesong on 2024-09-07.
*/
open class ChunkPool(
val DOM: ClusteredFormatDOM,
// `DiskSkimmer` or `ClusteredFormatDOM`
val disk: Any,
val wordSizeInBytes: Long,
val world: GameWorld,
val chunkNumToFileNum: (Int) -> String,
@@ -165,18 +169,47 @@ open class ChunkPool(
}
private fun fetchFromDisk(chunkNumber: Int) {
// read data from the disk
val fileName = chunkNumToFileNum(chunkNumber)
Clustfile(DOM, fileName).let {
val bytes = Common.unzip(it.readBytes())
val ptr = allocate(chunkNumber)
UnsafeHelper.memcpyFromArrToPtr(bytes, 0, ptr.ptr, bytes.size)
renumber(ptr)
// read data from the disk
if (disk is ClusteredFormatDOM) {
Clustfile(disk, fileName).let {
val bytes = Common.unzip(it.readBytes())
val ptr = allocate(chunkNumber)
UnsafeHelper.memcpyFromArrToPtr(bytes, 0, ptr.ptr, bytes.size)
renumber(ptr)
}
}
else if (disk is DiskSkimmer) {
val fileID = fileName.toLong()
disk.getFile(fileID)!!.let {
val bytes = Common.unzip(it.bytes)
val ptr = allocate(chunkNumber)
UnsafeHelper.memcpyFromArrToPtr(bytes, 0, ptr.ptr, bytes.size)
renumber(ptr)
}
}
}
private fun storeToDisk(chunkNumber: Int) {
TODO()
val fileName = chunkNumToFileNum(chunkNumber)
// write to the disk (the disk must be an autosaving copy of the original)
if (disk is ClusteredFormatDOM) {
Clustfile(disk, fileName).let {
val bytes = Common.zip(serialise(chunkNumber).iterator())
it.overwrite(bytes.toByteArray())
}
}
// append the new entry
else if (disk is DiskSkimmer) {
val fileID = fileName.toLong()
val bytes = Common.zip(serialise(chunkNumber).iterator())
val oldEntry = disk.getEntry(fileID)
val timeNow = App.getTIME_T()
disk.appendEntry(DiskEntry(fileID, 0L, oldEntry?.creationDate ?: timeNow, timeNow, EntryFile(bytes)))
}
}
private fun checkForChunk(chunkNumber: Int) {
@@ -185,6 +218,14 @@ open class ChunkPool(
}
}
private fun serialise(chunkNumber: Int): ByteArray {
val ptr = pointers[chunkNumber]!!
val out = ByteArray(chunkSize.toInt())
UnsafeHelper.memcpyFromPtrToArr(ptr, out, 0, chunkSize)
return out
}
/**
* Given the word-aligned byte sequence of `[B0, B1, B2, B3, ...]`,
* Return format: