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Terrarum/src/net/torvald/terrarum/weather/WeatherMixer.kt

251 lines
8.6 KiB
Kotlin

package net.torvald.terrarum.weather
import com.badlogic.gdx.Gdx
import com.badlogic.gdx.Input
import com.badlogic.gdx.graphics.Color
import com.badlogic.gdx.graphics.Texture
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import com.badlogic.gdx.graphics.glutils.ShapeRenderer
import net.torvald.terrarum.utils.JsonFetcher
import net.torvald.colourutil.*
import net.torvald.random.HQRNG
import net.torvald.terrarum.*
import net.torvald.terrarum.gameactors.ParticleTestRain
import net.torvald.terrarum.gamecontroller.KeyToggler
import net.torvald.terrarum.gameworld.WorldTime
import java.io.File
import java.util.*
/**
* Current, next are there for cross-fading two weathers
*
*
* Building a CLUT:
* Brightest:Darkest must be "around" 10:1
* Is RGBA-formatted (32-bit)
*
* Created by minjaesong on 16-07-11.
*/
object WeatherMixer {
var weatherList: HashMap<String, ArrayList<BaseModularWeather>>
var currentWeather: BaseModularWeather
var nextWeather: BaseModularWeather
lateinit var mixedWeather: BaseModularWeather
val globalLightNow = Color(0)
private val world = TerrarumGDX.ingame!!.world
// Weather indices
const val WEATHER_GENERIC = "generic"
const val WEATHER_GENERIC_RAIN = "genericrain"
// TODO add weather classification indices manually
// TODO to save from GL overhead, store lightmap to array; use GdxColorMap
init {
weatherList = HashMap<String, ArrayList<BaseModularWeather>>()
// read weather descriptions from assets/weather (modular weather)
val weatherRawValidList = ArrayList<File>()
val weatherRaws = ModMgr.getFiles("basegame", "weathers")
weatherRaws.forEach {
if (!it.isDirectory && it.name.endsWith(".json"))
weatherRawValidList.add(it)
}
// --> read from directory and store file that looks like RAW
for (raw in weatherRawValidList) {
val weather = readFromJson(raw)
// if List for the classification does not exist, make one
if (!weatherList.containsKey(weather.classification))
weatherList.put(weather.classification, ArrayList())
weatherList[weather.classification]!!.add(weather)
}
// initialise
currentWeather = weatherList[WEATHER_GENERIC]!![0]
nextWeather = getRandomWeather(WEATHER_GENERIC)
}
fun update(delta: Float) {
currentWeather = weatherList[WEATHER_GENERIC]!![0]
if (TerrarumGDX.ingame!!.player != null) {
// test rain toggled by F2
if (KeyToggler.isOn(Input.Keys.F2)) {
val playerPos = TerrarumGDX.ingame!!.player!!.centrePosPoint
kotlin.repeat(4) {
// 4 seems good
val rainParticle = ParticleTestRain(
playerPos.x + HQRNG().nextInt(TerrarumGDX.WIDTH) - TerrarumGDX.HALFW,
playerPos.y - TerrarumGDX.HALFH
)
TerrarumGDX.ingame!!.addParticle(rainParticle)
}
globalLightNow.set(getGlobalLightOfTime(world.time.todaySeconds).mul(0.3f, 0.3f, 0.3f, 1f))
}
}
}
private fun Color.set(other: Color) {
this.r = other.r
this.g = other.g
this.b = other.b
this.a = other.a
}
/**
* Warning! Ends and begins SpriteBatch
*/
fun render(batch: SpriteBatch) {
// we will not care for nextSkybox for now
val timeNow = TerrarumGDX.ingame!!.world.time.todaySeconds
val skyboxColourMap = currentWeather.skyboxGradColourMap
val lightColourMap = currentWeather.globalLightColourMap
// calculate global light
val globalLight = getGradientColour(skyboxColourMap, 2, timeNow)
globalLightNow.r = globalLight.r
globalLightNow.g = globalLight.g
globalLightNow.b = globalLight.b
// draw skybox to provided graphics instance
batch.end()
TerrarumGDX.inShapeRenderer {
it.rect(
0f, 0f,
TerrarumGDX.WIDTH.toFloat(),
TerrarumGDX.HEIGHT.toFloat(),
getGradientColour(skyboxColourMap, 1, timeNow),
getGradientColour(skyboxColourMap, 1, timeNow),
getGradientColour(skyboxColourMap, 0, timeNow),
getGradientColour(skyboxColourMap, 0, timeNow)
)
}
batch.begin()
}
fun Float.clampOne() = if (this > 1) 1f else this
private operator fun Color.times(other: Color) = Color(this.r * other.r, this.g * other.g, this.b * other.b, 1f)
/**
* Get a GL of specific time
*/
fun getGlobalLightOfTime(timeInSec: Int): Color =
getGradientColour(currentWeather.globalLightColourMap, 0, timeInSec)
// TODO colour gradient load from image, store to array
fun getGradientColour(colorMap: GdxColorMap, row: Int, timeInSec: Int): Color {
val dataPointDistance = WorldTime.DAY_LENGTH / colorMap.width
val phaseThis: Int = timeInSec / dataPointDistance // x-coord in gradmap
val phaseNext: Int = (phaseThis + 1) % colorMap.width
val colourThis = colorMap.get(phaseThis, row)
val colourNext = colorMap.get(phaseNext, row)
// interpolate R, G and B
val scale = (timeInSec % dataPointDistance).toFloat() / dataPointDistance // [0.0, 1.0]
val newCol = CIELabUtil.getGradient(scale, colourThis, colourNext)
/* // very nice monitor code
// 65 -> 66 | 300 | 19623 | RGB8(255, 0, 255) -[41%]-> RGB8(193, 97, 23) | * `230`40`160`
// ^ step |width| time | colour from scale colour to | output
if (dataPointDistance == 300)
println("$phaseThis -> $phaseNext | $dataPointDistance | $timeInSec" +
" | ${colourThis.toStringRGB()} -[${scale.times(100).toInt()}%]-> ${colourNext.toStringRGB()}" +
" | * `$r`$g`$b`")*/
return newCol
}
fun Color.toStringRGB() = "RGB8(${this.r}, ${this.g}, ${this.b})"
fun getWeatherList(classification: String) = weatherList[classification]!!
fun getRandomWeather(classification: String) =
getWeatherList(classification)[HQRNG().nextInt(getWeatherList(classification).size)]
fun readFromJson(file: File): BaseModularWeather = readFromJson(file.path)
fun readFromJson(path: String): BaseModularWeather {
/* JSON structure:
{
"globalLight": "colourmap/sky_colour.tga", // integer for static, string (path to image) for dynamic
"skyboxGradColourMap": "colourmap/sky_colour.tga", // integer for static, string (path to image) for dynamic
"extraImages": [
// if any, it will be like:
sun01.tga,
clouds01.tga,
clouds02.tga,
auroraBlueViolet.tga
]
}
*/
val pathToImage = "weathers"
val JSON = JsonFetcher(path)
val globalLightInJson = JSON.get("globalLight").asJsonPrimitive
val skyboxInJson = JSON.get("skyboxGradColourMap").asJsonPrimitive
val extraImagesPath = JSON.getAsJsonArray("extraImages")
val globalLight = if (globalLightInJson.isString)
GdxColorMap(ModMgr.getGdxFile("basegame", "$pathToImage/${globalLightInJson.asString}"))
else if (globalLightInJson.isNumber)
GdxColorMap(globalLightInJson.asNumber.toInt())
else
throw IllegalStateException("In weather descriptor $path -- globalLight seems malformed.")
val skybox = if (skyboxInJson.isString)
GdxColorMap(ModMgr.getGdxFile("basegame", "$pathToImage/${skyboxInJson.asString}"))
else if (globalLightInJson.isNumber)
GdxColorMap(skyboxInJson.asNumber.toInt())
else
throw IllegalStateException("In weather descriptor $path -- skyboxGradColourMap seems malformed.")
val extraImages = ArrayList<Texture>()
for (i in extraImagesPath)
extraImages.add(Texture(ModMgr.getGdxFile("basegame", "$pathToImage/${i.asString}")))
val classification = JSON.get("classification").asJsonPrimitive.asString
var mixFrom: String?
try { mixFrom = JSON.get("mixFrom").asJsonPrimitive.asString }
catch (e: NullPointerException) { mixFrom = null }
var mixPercentage: Double?
try { mixPercentage = JSON.get("mixPercentage").asJsonPrimitive.asDouble }
catch (e: NullPointerException) { mixPercentage = null }
return BaseModularWeather(
globalLightColourMap = globalLight,
skyboxGradColourMap = skybox,
classification = classification,
extraImages = extraImages
)
}
}