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more plausible ground radar (2)

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minjaesong
2023-11-01 21:24:03 +09:00
parent 4c04267cb8
commit 1aa00d564d
1 changed files with 34 additions and 1 deletions
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35
src/net/torvald/terrarum/modulebasegame/console/ExportMap2.kt
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@@ -9,6 +9,7 @@ import net.torvald.terrarum.blockproperties.Block
import net.torvald.terrarum.console.ConsoleCommand
import net.torvald.terrarum.console.Echo
import net.torvald.terrarum.console.EchoError
import net.torvald.terrarum.gameworld.fmod
import net.torvald.terrarum.serialise.toUint
import net.torvald.terrarum.utils.RasterWriter
import net.torvald.terrarum.worlddrawer.toRGBA
@@ -17,6 +18,7 @@ import java.io.IOException
import kotlin.math.absoluteValue
import kotlin.math.pow
import kotlin.math.roundToInt
import kotlin.math.sign
/**
* Ground Peneration Radar Simulator
@@ -42,6 +44,12 @@ internal object ExportMap2 : ConsoleCommand {
private fun Float.bfpow(pow: Float) = if (this >= 0f) this.div(128f).pow(pow) else this.div(-128f).pow(pow).times(-1f)
private fun Float.toDitherredByte(): Byte {
val byteVal = this.times(255f).roundToInt()
val error = this - byteVal
val errorInt = if (Math.random() < error.absoluteValue) 0 else (1 * error.sign).toInt()
return (byteVal + errorInt).coerceIn(0..255).toByte()
}
override fun execute(args: Array<String>) {
val world = (INGAME.world)
@@ -74,7 +82,7 @@ internal object ExportMap2 : ConsoleCommand {
val deltaVal = delta5.bfpow(1f)
mapData[y * world.width + x] = deltaVal.plus(0.5f).times(255f).coerceIn(0f..255f).roundToInt().toByte()
mapData[y * world.width + x] = deltaVal.plus(0.5f).toDitherredByte()
akku5 = delta4
@@ -86,6 +94,31 @@ internal object ExportMap2 : ConsoleCommand {
}
}
/*
// gaussian blur it
val sampleOff = arrayOf(-3,-2,-1,0,1,2,3)
val gaussLut = arrayOf(0.054f, 0.164f, 0.319f, 0.399f, 0.319f, 0.164f, 0.054f)
val mapData2 = FloatArray(world.width * world.height)
// blur pass horizontal
for (y in 0 until world.height) {
for (x in 0 until world.width) {
val ps = sampleOff.map { y * world.width + (x+it) fmod world.width }
val v = ps.mapIndexed { i, it -> gaussLut[i] * mapData[it].toUint() }.sum()
mapData2[y * world.width + x] = v
}
}
val mapData3 = FloatArray(world.width * world.height)
// blur pass vertical
for (y in 0 until world.height) {
for (x in 0 until world.width) {
val ps = sampleOff.map { (y + it).coerceIn(0 until world.height) * world.width + x }
val v = ps.mapIndexed { i, it -> gaussLut[i] * mapData2[it] }.sum()
mapData3[y * world.width + x] = v
}
}
// writeout
mapData3.forEachIndexed { index, fl -> mapData[index] = fl.toDitherredByte() }
*/
val dir = App.defaultDir + "/Exports/"
val dirAsFile = File(dir)