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did my best to draw fluids. The thing is, tiles suck at this and I need polygon-based render for fluids

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minjaesong
2019-03-03 12:18:04 +09:00
parent deb82d54b0
commit 01e5f75bf4
2 changed files with 40 additions and 17 deletions
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20
src/net/torvald/terrarum/worlddrawer/CreateTileAtlas.kt
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@@ -16,6 +16,11 @@ import kotlin.math.roundToInt
/**
* This class implements work_files/dynamic_shape_2_0.psd
*
* Tile at (0,0) AND (5,0) must be transparent. Former is because block 0 is considered as an air, and the latter
* is because it's breakage of 0, and 0 means no breakage. Breakage part is hard-coded in the tiling shader.
*
* Any real tiles must begin from (0,16), the first 256x16 section is reserved for special purpose (terrain: breakage, fluid: empty)
*
* Created by minjaesong on 2019-02-28.
*/
object CreateTileAtlas {
@@ -57,6 +62,11 @@ object CreateTileAtlas {
atlasSpring = Pixmap(TILES_IN_X * TILE_SIZE, TILES_IN_X * TILE_SIZE, Pixmap.Format.RGBA8888)
atlasFluid = Pixmap(TILES_IN_X * TILE_SIZE, TILES_IN_X * TILE_SIZE, Pixmap.Format.RGBA8888)
atlas.blending = Pixmap.Blending.None
atlasAutumn.blending = Pixmap.Blending.None
atlasWinter.blending = Pixmap.Blending.None
atlasSpring.blending = Pixmap.Blending.None
atlasFluid.blending = Pixmap.Blending.None
val initMap = Pixmap(Gdx.files.internal(atlasInit))
drawToAtlantes(initMap, 16)
@@ -129,6 +139,7 @@ object CreateTileAtlas {
// pixmap <- (color SCREEN fluidMasterPixmap)
// then occupy the atlasFluid
val pixmap = Pixmap(fluidMasterPixmap.width, fluidMasterPixmap.height, Pixmap.Format.RGBA8888)
pixmap.blending = Pixmap.Blending.None
for (y in 0 until pixmap.height) {
for (x in 0 until pixmap.width) {
@@ -145,10 +156,9 @@ object CreateTileAtlas {
// test print
//PixmapIO2.writeTGA(Gdx.files.absolute("${AppLoader.defaultDir}/$i.tga"), pixmap, false)
// using the test print, I figured out that the output is alpha premultiplied.
// to the atlas
val atlasTargetPos = 1 + 47 * 8 * (i - BlockCodex.MAX_TERRAIN_TILES)
val atlasTargetPos = 16 + 47 * 8 * (i - BlockCodex.MAX_TERRAIN_TILES)
for (k in 0 until 47 * 8) {
val srcX = (k % 47) * TILE_SIZE
val srcY = (k / 47) * TILE_SIZE
@@ -170,10 +180,12 @@ object CreateTileAtlas {
return tags.getOrDefault(blockID, defaultRenderTag)
}
fun fluidFillToTileLevel(fill: Float) = fill.times(8).roundToInt().coerceIn(0, 8)
fun fluidToTileNumber(fluid: GameWorld.FluidInfo): Int {
val fluidLevel = fluid.amount.coerceIn(0f, 1f).times(9).roundToInt()
val fluidLevel = fluidFillToTileLevel(fluid.amount)
return if (fluid.type == Fluid.NULL || fluidLevel == 0) 0 else
47 * 8 * (fluid.type.abs() - 1) + 47 * (fluidLevel - 1)
16 + (376 * (fluid.type.abs() - 1)) + (47 * (fluidLevel - 1))
}
private fun fileToAtlantes(it: FileHandle) {