Files
Terrarum/src/net/torvald/terrarum/worlddrawer/FeaturesDrawer.kt

84 lines
3.0 KiB
Kotlin

package net.torvald.terrarum.worlddrawer
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import com.jme3.math.FastMath
import net.torvald.colourutil.ColourTemp
import net.torvald.terrarum.*
import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZEF
import net.torvald.terrarum.blockproperties.Block
import net.torvald.terrarum.blockstats.TileSurvey
import net.torvald.terrarum.gameworld.GameWorld
import net.torvald.terrarum.ui.Toolkit
import kotlin.math.roundToInt
/**
* Created by minjaesong on 2015-12-31.
*/
object FeaturesDrawer {
/** World change is managed by IngameRenderer.setWorld() */
internal var world: GameWorld = GameWorld.makeNullWorld()
//const val TILE_SIZE = TILE_SIZE
private val ENV_COLTEMP_LOWEST = 5500
private val ENV_COLTEMP_HIGHEST = 7500
val ENV_COLTEMP_NOON = 6500 // 6500 == sRGB White; do not touch!
var colTemp: Int = 0
private set
init {
TileSurvey.submitProposal(
TileSurvey.SurveyProposal(
"basegame.FeaturesDrawer.coldTiles", 72, 48, 2, 2
) { world, x, y -> BlockCodex[world.getTileFromTerrain(x, y)].hasTag("COLD") }
)
TileSurvey.submitProposal(
TileSurvey.SurveyProposal(
"basegame.FeaturesDrawer.warmTiles", 72, 48, 2, 2
) { world, x, y -> BlockCodex[world.getTileFromTerrain(x, y)].hasTag("WARM") }
)
}
fun update(delta: Float) {
}
/**
* A colour filter used to provide effect that makes whole screen look warmer/cooler,
* usually targeted for the environmental temperature (desert/winterland), hence the name.
*/
fun drawEnvOverlay(batch: SpriteBatch) {
val onscreen_tiles_cap = 0.3
val onscreen_cold_tiles = (TileSurvey.getRatio("basegame.FeaturesDrawer.coldTiles") ?: 0.0).coerceAtMost(onscreen_tiles_cap)
val onscreen_warm_tiles = (TileSurvey.getRatio("basegame.FeaturesDrawer.warmTiles") ?: 0.0).coerceAtMost(onscreen_tiles_cap)
val colTemp_cold = colTempLinearFunc((onscreen_cold_tiles / onscreen_tiles_cap).toFloat())
val colTemp_warm = colTempLinearFunc(-(onscreen_warm_tiles / onscreen_tiles_cap).toFloat())
colTemp = colTemp_warm + colTemp_cold - ENV_COLTEMP_NOON
val zoom = Terrarum.ingame?.screenZoom ?: 1f
blendMul(batch)
batch.color = ColourTemp(colTemp)
Toolkit.fillArea(batch, 0, 0,
(App.scr.width * if (zoom < 1) 1f / zoom else zoom).roundToInt(),
(App.scr.height * if (zoom < 1) 1f / zoom else zoom).roundToInt()
)
blendNormalStraightAlpha(batch)
}
/**
* @param x [-1 , 1], 0 for 6500K (median of ENV_COLTEMP_HIGHEST and ENV_COLTEMP_LOWEST)
* *
* @return
*/
private fun colTempLinearFunc(x: Float): Int {
val colTempMedian = (ENV_COLTEMP_HIGHEST + ENV_COLTEMP_LOWEST) / 2
return ((ENV_COLTEMP_HIGHEST - ENV_COLTEMP_LOWEST) / 2 * x.coerceIn(-1f, 1f) + colTempMedian).roundToInt()
}
}