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newborn clouds will fade-in

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minjaesong
2023-09-05 14:24:02 +09:00
parent 699cc4dd74
commit c576d087b4
2 changed files with 16 additions and 22 deletions
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24
src/net/torvald/terrarum/weather/WeatherMixer.kt
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@@ -22,6 +22,7 @@ import net.torvald.terrarum.clut.Skybox
import net.torvald.terrarum.utils.JsonFetcher
import net.torvald.terrarum.utils.forEachSiblings
import net.torvald.terrarum.weather.WeatherObjectCloud.Companion.ALPHA_ROLLOFF_Z
import net.torvald.terrarum.weather.WeatherObjectCloud.Companion.NEWBORN_GROWTH_TIME
import net.torvald.terrarum.worlddrawer.WorldCamera
import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
import net.torvald.util.SortedArrayList
@@ -391,7 +392,7 @@ internal object WeatherMixer : RNGConsumer {
}
private fun tryToSpawnCloud(currentWeather: BaseModularWeather, precalculatedPos: Vector3? = null) {
private fun tryToSpawnCloud(currentWeather: BaseModularWeather, precalculatedPos: Vector3? = null, ageOverride: Int = 0) {
// printdbg(this, "Trying to spawn a cloud... (${cloudsSpawned} / ${cloudSpawnMax})")
if (cloudsSpawned < cloudSpawnMax) {
@@ -444,6 +445,8 @@ internal object WeatherMixer : RNGConsumer {
it.pos.y = takeUniformRand(-cloud.altHigh..-cloud.altLow) * scrHscaler
}
it.life = ageOverride
clouds.add(it)
cloudsSpawned += 1
@@ -468,7 +471,7 @@ internal object WeatherMixer : RNGConsumer {
val x = WeatherObjectCloud.screenXtoWorldX(takeUniformRand(0f..App.scr.wf), zz)
tryToSpawnCloud(currentWeather, Vector3(x, 0f, z))
tryToSpawnCloud(currentWeather, Vector3(x, 0f, z), NEWBORN_GROWTH_TIME.toInt())
}
}
@@ -753,23 +756,6 @@ internal object WeatherMixer : RNGConsumer {
var mixFrom: String?
try { mixFrom = JSON.getString("mixFrom") }
catch (e: IllegalArgumentException) { mixFrom = null }
var mixPercentage: Double?
try { mixPercentage = JSON.getDouble("mixPercentage") }
catch (e: IllegalArgumentException) { mixPercentage = null }
return BaseModularWeather(
identifier = identifier,
json = JSON,

14
src/net/torvald/terrarum/weather/WeatherObjectCloud.kt
View File

@@ -26,7 +26,7 @@ class WeatherObjectCloud(
throw UnsupportedOperationException()
}
var life = 0; private set
var life = 0
var despawnCode = ""; private set
private val lifespan = 40000 + ((Math.random() + Math.random()) * 20000).roundToInt() // triangular distibution of 40000..80000
@@ -49,7 +49,14 @@ class WeatherObjectCloud(
eigenAlpha = if (posZ < 1f) posZ.pow(0.5f) else -((posZ - 1f) / ALPHA_ROLLOFF_Z) + 1f
alpha = eigenAlpha * if (life < lifespan) 1f else 1f - (life - lifespan) / OLD_AGE_DECAY
val alphaMult = if (life < NEWBORN_GROWTH_TIME)
life / NEWBORN_GROWTH_TIME
else if (life < lifespan)
1f
else
1f - (life - lifespan) / OLD_AGE_DECAY
alpha = eigenAlpha * alphaMult
val lrCoord = screenCoordBottomLRforDespawnCalculation
@@ -173,7 +180,8 @@ class WeatherObjectCloud(
fun worldYtoWorldZforScreenYof0(y: Float) = 1f - (y / H) // rearrange screenCoord equations to derive this eq :p
const val ALPHA_ROLLOFF_Z = 64f
const val OLD_AGE_DECAY = 4000f
const val OLD_AGE_DECAY = 5000f
const val NEWBORN_GROWTH_TIME = 1000f
val RGB_GAMMA_TABLE = floatArrayOf(
0.2f,