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Merge pull request #127 from Semper-Viventem/master
Release 0.24.1-beta
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110 changes: 110 additions & 0 deletions
110
app/src/main/java/f/cking/software/utils/graphic/DropEffectState.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package f.cking.software.utils.graphic | ||
|
|
||
| import android.graphics.RenderEffect | ||
| import android.graphics.RuntimeShader | ||
| import android.os.Build | ||
| import androidx.compose.animation.core.Animatable | ||
| import androidx.compose.animation.core.CubicBezierEasing | ||
| import androidx.compose.animation.core.Easing | ||
| import androidx.compose.animation.core.LinearEasing | ||
| import androidx.compose.animation.core.tween | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.LaunchedEffect | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.runtime.setValue | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.composed | ||
| import androidx.compose.ui.graphics.asComposeRenderEffect | ||
| import androidx.compose.ui.graphics.graphicsLayer | ||
| import androidx.compose.ui.layout.onSizeChanged | ||
|
|
||
| @Composable | ||
| fun Modifier.withDropEffect(dropEffectState: DropEffectState): Modifier = composed { | ||
|
|
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| if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) { | ||
| return@composed this | ||
| } | ||
|
|
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| val shader = remember { RuntimeShader(Shaders.WATER_DROP) } | ||
| val factor = remember { Animatable(0f) } | ||
|
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| val dropEvent = dropEffectState.dropEvent | ||
| if (dropEvent != null) { | ||
| LaunchedEffect(dropEffectState.dropEvent) { | ||
| dropEvent.type.animSpecs.forEach { animationSpec -> | ||
| factor.animateTo( | ||
| targetValue = animationSpec.to, | ||
| animationSpec = tween(durationMillis = animationSpec.duration, easing = animationSpec.easing) | ||
| ) | ||
| } | ||
| dropEvent.type.postFactor?.let { factor.snapTo(it) } | ||
| } | ||
| } | ||
|
|
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| shader.setFloatUniform( | ||
| "dropPosition", | ||
| dropEffectState.center[0], | ||
| dropEffectState.center[1], | ||
| ) | ||
|
|
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| shader.setFloatUniform("factor", factor.value) | ||
|
|
||
| this | ||
| .onSizeChanged { | ||
| shader.setFloatUniform( | ||
| "iResolution", | ||
| it.width.toFloat(), | ||
| it.height.toFloat(), | ||
| ) | ||
| shader.setFloatUniform( | ||
| "dropPosition", | ||
| it.width.toFloat() / 2, | ||
| it.height.toFloat() / 2, | ||
| ) | ||
| } | ||
| .then( | ||
| graphicsLayer { | ||
| renderEffect = RenderEffect | ||
| .createRuntimeShaderEffect(shader, "content") | ||
| .asComposeRenderEffect() | ||
| } | ||
| ) | ||
| } | ||
|
|
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| class DropEffectState { | ||
|
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| var dropEvent: DropEvent? by mutableStateOf(null) | ||
| private set | ||
|
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| var center: FloatArray by mutableStateOf(floatArrayOf(0f, 0f)) | ||
|
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| fun drop(type: DropEvent.Type, centerX: Float, centerY: Float) { | ||
| move(centerX, centerY) | ||
| drop(type) | ||
| } | ||
|
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| fun drop(type: DropEvent.Type) { | ||
| dropEvent = DropEvent(System.currentTimeMillis(), type) | ||
| } | ||
|
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| fun move(centerX: Float, centerY: Float) { | ||
| center = floatArrayOf(centerX, centerY) | ||
| } | ||
|
|
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| data class DropEvent(val time: Long, val type: Type) { | ||
| enum class Type(val animSpecs: List<AnimationSpec>, val postFactor: Float? = null) { | ||
| TOUCH(animSpecs = listOf(AnimationSpec(to = -1.5f, duration = 200))), | ||
| RELEASE_SOFT(animSpecs = listOf(AnimationSpec(to = 0f, duration = 100))), | ||
| RELEASE_HARD(animSpecs = listOf(AnimationSpec(to = 0f, duration = 50), AnimationSpec(to = 2f, duration = 1000, easing = CubicBezierEasing(0f, 0.5f, 0.75f, 1f))), postFactor = 0f), | ||
| } | ||
|
|
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| data class AnimationSpec(val to: Float, val duration: Int, val easing: Easing = LinearEasing) | ||
| } | ||
| } | ||
|
|
||
| @Composable | ||
| fun rememberDropEffectState(): DropEffectState { | ||
| return remember { DropEffectState() } | ||
| } |
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