Research tree preview multiple scrollers

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/AndroidStationScreen.kt

@@ -408,6 +408,59 @@ private class AndroidResearchButton(
 	}
 }
 
+private enum class PreviewScrollers(
+	val init: (EditablePanel, Random) -> Unit,
+	val scroll: (EditablePanel, Random) -> Boolean
+) {
+	LEFT_TO_RIGHT(
+		init = { it, random ->
+			it.xOffset = it.width
+			it.yOffset = random.nextFloat(-it.boundingHeight + 18f, 0f)
+		},
+
+		scroll = { it, _ ->
+			it.xOffset -= 1f
+			it.xOffset >= -it.boundingWidth
+		}
+	),
+
+	RIGHT_TO_LEFT(
+		init = { it, random ->
+			it.xOffset = -it.boundingWidth
+			it.yOffset = random.nextFloat(-it.boundingHeight + 18f, 0f)
+		},
+
+		scroll = { it, _ ->
+			it.xOffset += 1f
+			it.xOffset <= it.width
+		}
+	),
+
+	BOTTOM_TO_TOP(
+		init = { it, random ->
+			it.yOffset = -it.boundingHeight
+			it.xOffset = random.nextFloat(-it.boundingWidth + 18f, 0f)
+		},
+
+		scroll = { it, _ ->
+			it.yOffset += 1f
+			it.yOffset <= it.height
+		}
+	),
+
+	TOP_TO_BOTTOM(
+		init = { it, random ->
+			it.yOffset = it.height
+			it.xOffset = random.nextFloat(-it.boundingWidth + 18f, 0f)
+		},
+
+		scroll = { it, _ ->
+			it.yOffset -= 1f
+			it.yOffset >= it.boundingHeight
+		}
+	)
+}
+
 class AndroidStationScreen constructor(p_97741_: AndroidStationMenu, p_97742_: Inventory, p_97743_: Component) :
 	MatteryScreen<AndroidStationMenu>(p_97741_, p_97742_, p_97743_) {
 
@@ -416,6 +469,7 @@ class AndroidStationScreen constructor(p_97741_: AndroidStationMenu, p_97742_: I
 
 		val canvas = object : DraggableCanvasPanel(this@AndroidStationScreen, null) {
 			private val random = Random()
+			private var scroller: PreviewScrollers = PreviewScrollers.values().let { it[random.nextInt(it.size)] }
 
 			override fun innerRender(stack: PoseStack, mouseX: Float, mouseY: Float, partialTick: Float) {
 				drawColor = RGBAColor.BLACK
@@ -435,11 +489,11 @@ class AndroidStationScreen constructor(p_97741_: AndroidStationMenu, p_97742_: I
 				super.tick()
 
 				if (isPreview) {
-					xOffset -= 1f
+					val status = scroller.scroll.invoke(this, random)
 
-					if (xOffset < -boundingWidth) {
-						xOffset = width
-						yOffset = random.nextFloat(-boundingHeight + 18f, 0f)
+					if (!status) {
+						scroller = PreviewScrollers.values().let { it[random.nextInt(it.size)] }
+						scroller.init.invoke(this, random)
 					}
 				}
 			}
@@ -554,7 +608,7 @@ class AndroidStationScreen constructor(p_97741_: AndroidStationMenu, p_97742_: I
 
 		SlotPanel(this, stripLeft, menu.batterySlot).also {
 			it.dock = Dock.TOP
-			it.dockTop = 4f
+			it.dockTop = 6f
 		}
 
 		val playerStrip = EditablePanel(this, frame, height = 72f)