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Algorithm to obscure undiscovered digimon

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Logic still needs to be implemented to distinguish discovered from undiscovered.
This commit is contained in:
Christopher O'Grady 2025-01-12 21:36:02 -05:00
parent ce1cf3eddb
commit 98bd74c544
3 changed files with 29 additions and 1 deletions
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4
app/src/main/java/com/github/nacabaro/vbhelper/components/CharacterEntry.kt
View File

@ -16,16 +16,18 @@ import androidx.compose.ui.unit.dp
import com.github.nacabaro.vbhelper.domain.Sprites
import com.github.nacabaro.vbhelper.utils.BitmapData
import com.github.nacabaro.vbhelper.utils.getBitmap
import com.github.nacabaro.vbhelper.utils.getObscuredBitmap
import java.nio.ByteBuffer
@Composable
fun CharacterEntry(
icon: BitmapData,
obscure: Boolean = false,
modifier: Modifier = Modifier,
onClick: () -> Unit = { }
) {
val bitmap = remember (icon.bitmap) {
icon.getBitmap()
if(obscure) icon.getObscuredBitmap() else icon.getBitmap()
}
val imageBitmap = remember(bitmap) { bitmap.asImageBitmap() }

2
app/src/main/java/com/github/nacabaro/vbhelper/screens/DimScreen.kt
View File

@ -1,5 +1,6 @@
package com.github.nacabaro.vbhelper.screens
import android.util.Log
import androidx.compose.foundation.lazy.grid.GridCells
import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
import androidx.compose.foundation.lazy.grid.items
@ -54,6 +55,7 @@ fun DiMScreen(
items(characterList.value) { character ->
CharacterEntry(
onClick = { },
obscure = true,
icon = BitmapData(
bitmap = character.sprite1,
width = character.spritesWidth,

24
app/src/main/java/com/github/nacabaro/vbhelper/utils/BitmapData.kt
View File

@ -14,6 +14,30 @@ fun BitmapData.getBitmap(): Bitmap {
return Bitmap.createBitmap(createARGBIntArray(), this.width, this.height, Bitmap.Config.HARDWARE)
}
object ARGBMasks {
const val ALPHA = (0xFF shl 24)
const val RED = (0xFF shl 16)
const val GREEN = (0xFF shl 8)
const val BLUE = 0xFF
}
const val BLACK = ARGBMasks.ALPHA
fun BitmapData.getObscuredBitmap(): Bitmap {
val argbPixels = createARGBIntArray()
for(i in argbPixels.indices) {
val currentPixel = argbPixels[i]
if( currentPixel and ARGBMasks.ALPHA != 0) {
// non transparent pixel
argbPixels[i] = BLACK
}
}
return Bitmap.createBitmap(argbPixels, this.width, this.height, Bitmap.Config.HARDWARE)
}
fun BitmapData.createARGBIntArray(): IntArray {
// hack to get it into correct format by relying on the DIM Sprites methods since we haven't changed the raw pixel data at this point.
val bytes = SpriteData.Sprite.builder().width(this.width).height(this.height).pixelData(this.bitmap).build()