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new gem on worldgen

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minjaesong
2024-02-13 23:42:43 +09:00
parent 6e1af36a63
commit e5ac560966
27 changed files with 263 additions and 82 deletions
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18
src/net/torvald/terrarum/gameworld/BlockLayerI16I8.kt
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@@ -13,13 +13,13 @@ import net.torvald.unsafe.UnsafePtr
* where a_n is a tile number, p_n is a placement index
* Created by minjaesong on 2023-10-10.
*/
class BlockLayerI16I8 (val width: Int, val height: Int) : BlockLayer {
class BlockLayerI16I8 (override val width: Int, override val height: Int) : BlockLayer {
override val bytesPerBlock = BYTES_PER_BLOCK
// for some reason, all the efforts of saving the memory space were futile.
// using unsafe pointer gets you 100 fps, whereas using directbytebuffer gets you 90
internal val ptr: UnsafePtr = UnsafeHelper.allocate(width * height * BYTES_PER_BLOCK)
internal val ptr: UnsafePtr = UnsafeHelper.allocate(width * height * bytesPerBlock)
val ptrDestroyed: Boolean
get() = ptr.destroyed
@@ -45,7 +45,7 @@ class BlockLayerI16I8 (val width: Int, val height: Int) : BlockLayer {
return object : Iterator<Byte> {
private var iteratorCount = 0L
override fun hasNext(): Boolean {
return iteratorCount < width * height * BYTES_PER_BLOCK
return iteratorCount < width * height * bytesPerBlock
}
override fun next(): Byte {
iteratorCount += 1
@@ -55,7 +55,7 @@ class BlockLayerI16I8 (val width: Int, val height: Int) : BlockLayer {
}
override fun unsafeGetTile(x: Int, y: Int): Int {
val offset = BYTES_PER_BLOCK * (y * width + x)
val offset = getOffset(x, y)
val lsb = ptr[offset]
val msb = ptr[offset + 1]
val placement = ptr[offset + 2]
@@ -64,7 +64,7 @@ class BlockLayerI16I8 (val width: Int, val height: Int) : BlockLayer {
}
internal fun unsafeGetTile1(x: Int, y: Int): Pair<Int, Int> {
val offset = BYTES_PER_BLOCK * (y * width + x)
val offset = getOffset(x, y)
val lsb = ptr[offset]
val msb = ptr[offset + 1]
val placement = ptr[offset + 2]
@@ -73,12 +73,12 @@ class BlockLayerI16I8 (val width: Int, val height: Int) : BlockLayer {
}
override fun unsafeToBytes(x: Int, y: Int): ByteArray {
val offset = BYTES_PER_BLOCK * (y * width + x)
val offset = getOffset(x, y)
return byteArrayOf(ptr[offset + 1], ptr[offset + 0], ptr[offset + 2])
}
internal fun unsafeSetTile(x: Int, y: Int, tile: Int, placement: Int) {
val offset = BYTES_PER_BLOCK * (y * width + x)
val offset = getOffset(x, y)
val lsb = tile.and(0xff).toByte()
val msb = tile.ushr(8).and(0xff).toByte()
@@ -96,14 +96,14 @@ class BlockLayerI16I8 (val width: Int, val height: Int) : BlockLayer {
}
override fun unsafeSetTile(x: Int, y: Int, bytes: ByteArray) {
val offset = BYTES_PER_BLOCK * (y * width + x)
val offset = getOffset(x, y)
ptr[offset] = bytes[1]
ptr[offset + 1] = bytes[0]
ptr[offset + 2] = bytes[2]
}
internal fun unsafeSetTileKeepPlacement(x: Int, y: Int, tile: Int) {
val offset = BYTES_PER_BLOCK * (y * width + x)
val offset = getOffset(x, y)
val lsb = tile.and(0xff).toByte()
val msb = tile.ushr(8).and(0xff).toByte()