⚗️ Add lag simulation feature with toggle switch

Author: vinceglb

sample/composeApp/src/commonMain/kotlin/io/github/vinceglb/confettikit/sample/App.kt

@@ -4,23 +4,43 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.Row
 import androidx.compose.material3.Button
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 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.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import androidx.compose.animation.core.withInfiniteAnimationFrameMillis
 import io.github.vinceglb.confettikit.compose.ConfettiKit
+import kotlin.time.Duration.Companion.milliseconds
+import kotlin.time.TimeSource
 
 @Composable
 fun App() {
     var isAnimating by remember { mutableStateOf(false) }
     var index by remember { mutableStateOf(0) }
+    var simulateLag by remember { mutableStateOf(false) }
+
+    if (simulateLag) {
+        LaunchedEffect(Unit) {
+            while (true) {
+                withInfiniteAnimationFrameMillis {
+                    val start = TimeSource.Monotonic.markNow()
+                    while (start.elapsedNow() < 40.milliseconds) {
+                        // Busy-loop to simulate main-thread jank
+                    }
+                }
+            }
+        }
+    }
 
     Scaffold {
         Box(
@@ -39,6 +59,17 @@ fun App() {
                 ) {
                     Text("Fiesta 🥳")
                 }
+
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    Text("Simulate lag")
+                    Switch(
+                        checked = simulateLag,
+                        onCheckedChange = { simulateLag = it },
+                    )
+                }
             }
 
             if (isAnimating) {