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re-impl skybox vertical parallax

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minjaesong
2019-12-22 22:24:16 +09:00
parent 3e5a581e89
commit e7b0bf74e2
1 changed files with 12 additions and 7 deletions
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19
src/net/torvald/terrarum/modulebasegame/weather/WeatherMixer.kt
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@@ -115,7 +115,6 @@ internal object WeatherMixer : RNGConsumer {
}
//private val parallaxZeroPos = WorldGenerator.TERRAIN_AVERAGE_HEIGHT * 0.75f // just an arb multiplier (266.66666 -> 200)
private val parallaxDomainSize = WorldGenerator.TERRAIN_UNDULATION / 2f
private val skyboxPixmap = Pixmap(2, 2, Pixmap.Format.RGBA8888)
private var skyboxTexture = Texture(skyboxPixmap)
@@ -124,7 +123,8 @@ internal object WeatherMixer : RNGConsumer {
* Sub-portion of IngameRenderer. You are not supposed to directly deal with this.
*/
internal fun render(camera: Camera, batch: SpriteBatch, world: GameWorld) {
val parallaxZeroPos = (world.height / 3) * 0.75f // just an arb multiplier (266.66666 -> 200)
val parallaxZeroPos = (world.height / 3f) * 0.8888f
val parallaxDomainSize = world.height / 4f
// we will not care for nextSkybox for now
@@ -147,8 +147,13 @@ internal object WeatherMixer : RNGConsumer {
.| = // parallax of +1
-+ <- 0.0 =
*/
val parallax = -((parallaxZeroPos - WorldCamera.gdxCamY.div(CreateTileAtlas.TILE_SIZE.toFloat())) / parallaxDomainSize).coerceIn(-1f, 1f)
val parallax = ((parallaxZeroPos - WorldCamera.gdxCamY.div(CreateTileAtlas.TILE_SIZE.toFloat())) / parallaxDomainSize).times(-1f).coerceIn(-1f, 1f)
val parallaxSize = 1f / 3f
val parallaxMidpt = (parallax + 1f) / 2f
val parallaxTop = (parallaxMidpt - (parallaxSize / 2f)).coerceIn(0f, 1f)
val parallaxBottom = (parallaxMidpt + (parallaxSize / 2f)).coerceIn(0f, 1f)
println("$parallaxZeroPos, $parallax | $parallaxTop - $parallaxMidpt - $parallaxBottom | $parallaxDomainSize")
// draw skybox to provided graphics instance
val colTopmost = getGradientColour(world, skyboxColourMap, 0, timeNow).toGdxColor()
@@ -157,8 +162,8 @@ internal object WeatherMixer : RNGConsumer {
//println(parallax) // parallax value works as intended.
val colTop = colorMix(colTopmost, colBottommost, (parallax + parallaxSize / 2f) * 2f - 1f)
val colBottom = colorMix(colTopmost, colBottommost, (parallax - parallaxSize / 2f) * 2f - 1f)
val colTop = colorMix(colTopmost, colBottommost, parallaxTop)
val colBottom = colorMix(colTopmost, colBottommost, parallaxBottom)
// draw using shaperenderer or whatever
@@ -166,9 +171,9 @@ internal object WeatherMixer : RNGConsumer {
gdxSetBlendNormal()
// draw to skybox texture
skyboxPixmap.setColor(colTop)
skyboxPixmap.drawPixel(0, 0); skyboxPixmap.drawPixel(1, 0)
skyboxPixmap.setColor(colBottom)
skyboxPixmap.drawPixel(0, 0); skyboxPixmap.drawPixel(1, 0)
skyboxPixmap.setColor(colTop)
skyboxPixmap.drawPixel(0, 1); skyboxPixmap.drawPixel(1, 1)
skyboxTexture.dispose()
skyboxTexture = Texture(skyboxPixmap); skyboxTexture.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear)