"Smart storage exchange icon"

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/MGUIGraphics.kt

@@ -14,6 +14,8 @@ import net.minecraft.world.inventory.tooltip.TooltipComponent
 import net.minecraft.world.item.ItemStack
 import ru.dbotthepony.mc.otm.client.minecraft
 import ru.dbotthepony.kommons.math.RGBAColor
+import ru.dbotthepony.mc.otm.client.screen.panels.ScreenPos
+import java.util.Arrays
 import kotlin.math.PI
 import kotlin.math.roundToInt
 
@@ -45,6 +47,73 @@ class MGUIGraphics(val parent: GuiGraphics) {
 		drawLine(pose.last().pose(), startX, startY, endX, endY, width, z, color)
 	}
 
+	fun drawLine(
+		points: Iterable<LinePoint>,
+		width: Float,
+		color: RGBAColor = RGBAColor.WHITE
+	) {
+		drawLine(pose.last().pose(), points, width, color)
+	}
+
+	fun drawLine(
+		points: Array<out LinePoint>,
+		width: Float,
+		color: RGBAColor = RGBAColor.WHITE
+	) {
+		drawLine(pose.last().pose(), points, width, color)
+	}
+
+	fun drawLine(
+		width: Float,
+		color: RGBAColor,
+		vararg points: LinePoint,
+	) {
+		drawLine(pose.last().pose(), points, width, color)
+	}
+
+	fun drawLine(
+		width: Float,
+		color: RGBAColor,
+		points: Iterable<LinePoint>,
+	) {
+		drawLine(pose.last().pose(), points, width, color)
+	}
+
+	fun drawLine(
+		width: Float,
+		color: RGBAColor,
+		z: Float,
+		points: List<ScreenPos>,
+	) {
+		require(points.size >= 2) { "Degenerate point list: only ${points.size} defined" }
+
+		val result = ArrayList<LinePoint>(points.size)
+
+		for (i in 1 until points.size) {
+			val (x0, y0) = points[i - 1]
+			val (x1, y1) = points[i]
+
+			result.add(
+				LinePoint(
+					x0, y0,
+					x1, y1,
+					z
+				)
+			)
+		}
+
+		drawLine(pose.last().pose(), result, width, color)
+	}
+
+	fun drawLine(
+		width: Float,
+		color: RGBAColor,
+		z: Float,
+		vararg points: ScreenPos,
+	) {
+		drawLine(width, color, z, Arrays.asList(*points))
+	}
+
 	fun renderRect(
 		x: Float,
 		y: Float,

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/RenderHelper.kt

@@ -294,6 +294,65 @@ fun renderColoredSphere(pose: PoseStack, radius: Float, color: RGBAColor = RGBAC
 	BufferUploader.drawWithShader(builder.buildOrThrow())
 }
 
+private fun uploadLineSegment(
+	builder: BufferBuilder,
+	matrix: Matrix4f,
+	startX: Float,
+	startY: Float,
+	endX: Float,
+	endY: Float,
+	width: Float,
+	z: Float,
+	color: RGBAColor = RGBAColor.WHITE
+) {
+	val length = ((startX - endX).pow(2f) + (startY - endY).pow(2f)).pow(0.5f)
+	var angle = acos((endX - startX) / length)
+
+	if (startY > endY)
+		angle *= -1f
+
+	val cos = cos(angle)
+	val sin = sin(angle)
+
+	val y0 = -width
+
+	val y1 = width
+
+	val x2 = length
+	val y2 = width
+
+	val x3 = length
+	val y3 = -width
+
+	builder.vertex(matrix,
+	   startX - y0 * sin,
+	   startY + y0 * cos,
+	   z).color(color)
+
+	builder.vertex(matrix,
+	   startX - y1 * sin,
+	   startY + y1 * cos,
+	   z).color(color)
+
+	builder.vertex(matrix,
+	   startX + x2 * cos - y2 * sin,
+	   startY + x2 * sin + y2 * cos,
+	   z).color(color)
+
+	builder.vertex(matrix,
+	   startX + x3 * cos - y3 * sin,
+	   startY + x3 * sin + y3 * cos,
+	   z).color(color)
+}
+
+data class LinePoint(
+	val startX: Float,
+	val startY: Float,
+	val endX: Float,
+	val endY: Float,
+	val z: Float = 0f,
+)
+
 fun drawLine(
 	matrix: Matrix4f,
 	startX: Float,
@@ -312,46 +371,46 @@ fun drawLine(
 		RenderSystem.depthFunc(GL_ALWAYS)
 
 	val builder = tesselator.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION_COLOR)
+	uploadLineSegment(builder, matrix, startX, startY, endX, endY, width, z, color)
+	BufferUploader.drawWithShader(builder.buildOrThrow())
+}
 
-	val length = ((startX - endX).pow(2f) + (startY - endY).pow(2f)).pow(0.5f)
+fun drawLine(
-	val angle = acos((endX - startX) / length)
+	matrix: Matrix4f,
+	points: Iterable<LinePoint>,
+	width: Float,
+	color: RGBAColor = RGBAColor.WHITE
+) {
+	val itr = points.iterator()
 
-	val cos = cos(angle)
+	if (!itr.hasNext()) {
-	val sin = sin(angle)
+		throw IllegalArgumentException("No line points were provided")
+	}
 
-	val y0 = -width
+	RenderSystem.setShader(GameRenderer::getPositionColorShader)
+	RenderSystem.enableBlend()
+	RenderSystem.defaultBlendFunc()
 
-	val y1 = width
+	if (!is3DContext)
+		RenderSystem.depthFunc(GL_ALWAYS)
 
-	val x2 = length
+	val builder = tesselator.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION_COLOR)
-	val y2 = width
 
-	val x3 = length
+	for ((startX, startY, endX, endY, z) in itr)
-	val y3 = -width
+		uploadLineSegment(builder, matrix, startX, startY, endX, endY, width, z, color)
-
-	builder.vertex(matrix,
-		startX - y0 * sin,
-		startY + y0 * cos,
-		z).color(color)
-
-	builder.vertex(matrix,
-		startX - y1 * sin,
-		startY + y1 * cos,
-		z).color(color)
-
-	builder.vertex(matrix,
-		startX + x2 * cos - y2 * sin,
-		startY + x2 * sin + y2 * cos,
-		z).color(color)
-
-	builder.vertex(matrix,
-		startX + x3 * cos - y3 * sin,
-		startY + x3 * sin + y3 * cos,
-		z).color(color)
 
 	BufferUploader.drawWithShader(builder.buildOrThrow())
 }
 
+fun drawLine(
+	matrix: Matrix4f,
+	points: Array<out LinePoint>,
+	width: Float,
+	color: RGBAColor = RGBAColor.WHITE
+) {
+	return drawLine(matrix, points.asIterable(), width, color)
+}
+
 data class ScissorRect(val xStart: Int, val yStart: Int, val xEnd: Int, val yEnd: Int, val lock: Boolean = false) {
 	val width: Int
 		get() = (xEnd - xStart).coerceAtLeast(0)

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/Widgets18.kt

@@ -30,6 +30,7 @@ object Widgets18 {
 	val RESTOCK_FROM_STORAGE = storageGrid.next()
 	val RESTOCK_WITH_MOVE_TO_STORAGE = storageGrid.next()
 	val RESTOCK_WITH_MOVE_FROM_STORAGE = storageGrid.next()
+	val SMART_STORAGE_EXCHANGE = storageGrid.next()
 
 	private val miscGrid = WidgetLocation.WIDGET_18.grid(4, 4)
 

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/blockentity/EnergyCounterRenderer.kt

@@ -20,12 +20,13 @@ import ru.dbotthepony.mc.otm.core.math.asAngle
 import ru.dbotthepony.mc.otm.core.math.clusterize
 import ru.dbotthepony.mc.otm.core.util.formatPower
 import ru.dbotthepony.mc.otm.core.math.times
+import ru.dbotthepony.mc.otm.core.util.GJRAND64RandomSource
 import java.util.Random
 import kotlin.math.PI
 import kotlin.math.absoluteValue
 
 class EnergyCounterRenderer(private val context: BlockEntityRendererProvider.Context) : BlockEntityRenderer<EnergyCounterBlockEntity> {
-	private val random = Random()
+	private val random = GJRAND64RandomSource()
 
 	override fun render(
 		tile: EnergyCounterBlockEntity,

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

@@ -17,9 +17,11 @@ import net.neoforged.neoforge.common.NeoForge
 import org.lwjgl.opengl.GL11
 import ru.dbotthepony.kommons.util.getValue
 import ru.dbotthepony.kommons.util.setValue
+import ru.dbotthepony.kommons.math.RGBAColor
 import ru.dbotthepony.mc.otm.player.matteryPlayer
 import ru.dbotthepony.mc.otm.client.render.MGUIGraphics
 import ru.dbotthepony.mc.otm.client.moveMousePosScaled
+import ru.dbotthepony.mc.otm.client.render.LinePoint
 import ru.dbotthepony.mc.otm.client.render.WidgetLocation
 import ru.dbotthepony.mc.otm.client.render.Widgets18
 import ru.dbotthepony.mc.otm.client.render.translation
@@ -55,6 +57,7 @@ import ru.dbotthepony.mc.otm.menu.widget.LevelGaugeWidget
 import ru.dbotthepony.mc.otm.menu.widget.ProfiledLevelGaugeWidget
 import java.util.*
 import java.util.concurrent.CopyOnWriteArrayList
+import kotlin.collections.ArrayList
 import kotlin.collections.List
 import kotlin.collections.MutableSet
 import kotlin.collections.isNotEmpty
@@ -690,7 +693,13 @@ abstract class MatteryScreen<T : MatteryMenu>(menu: T, inventory: Inventory, tit
 		for (panel in panelsReversed) {
 			RenderSystem.depthFunc(GL11.GL_ALWAYS)
 			RenderSystem.setShaderColor(1f, 1f, 1f, 1f)
-			panel.render(wrap, mouseXf, mouseYf, partialTick)
+			val segments = ArrayList<LinePoint>()
+
+			panel.render(wrap, mouseXf, mouseYf, partialTick, segments)
+
+			if (segments.isNotEmpty()) {
+				wrap.drawLine(0.5f, RGBAColor.GOLD, segments)
+			}
 		}
 
 		if (!panelsReversed.any { it.updateCursor0() })

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

@@ -52,7 +52,7 @@ open class DecimalHistoryChartPanel<out S : MatteryScreen<*>>(
 
 			map[1f] = formatText(maximum)
 
-			for (cluster in chart.asIterable().clusterize(randomGenerator)) {
+			for (cluster in chart.asIterable().clusterize(random)) {
 				val perc = (cluster.center / maximum).toFloat()
 
 				if (map.keys.none { (it - perc).absoluteValue < 0.08f }) {

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

@@ -11,94 +11,31 @@ import net.minecraft.client.gui.components.events.GuiEventListener
 import net.minecraft.client.gui.navigation.FocusNavigationEvent
 import net.minecraft.client.gui.navigation.ScreenRectangle
 import net.minecraft.client.gui.screens.Screen
-import net.minecraft.client.renderer.Rect2i
 import net.minecraft.network.chat.Component
-import net.minecraft.util.RandomSource
 import org.apache.logging.log4j.LogManager
+import ru.dbotthepony.kommons.math.RGBAColor
 import ru.dbotthepony.mc.otm.SystemTime
 import ru.dbotthepony.mc.otm.client.CursorType
 import ru.dbotthepony.mc.otm.client.render.MGUIGraphics
 import ru.dbotthepony.mc.otm.client.minecraft
 import ru.dbotthepony.mc.otm.client.moveMousePosScaled
+import ru.dbotthepony.mc.otm.client.render.LinePoint
 import ru.dbotthepony.mc.otm.client.render.RenderGravity
 import ru.dbotthepony.mc.otm.client.render.currentScissorRect
 import ru.dbotthepony.mc.otm.client.render.popScissorRect
 import ru.dbotthepony.mc.otm.client.render.pushScissorRect
 import ru.dbotthepony.mc.otm.client.screen.MatteryScreen
 import ru.dbotthepony.mc.otm.client.screen.panels.input.QueryUserPanel
-import ru.dbotthepony.mc.otm.core.RandomSource2Generator
 import ru.dbotthepony.mc.otm.core.collect.concatIterators
 import ru.dbotthepony.mc.otm.core.collect.flatMap
+import ru.dbotthepony.mc.otm.core.util.GJRAND64RandomSource
 import java.util.*
 import java.util.concurrent.CopyOnWriteArrayList
 import java.util.function.Predicate
-import java.util.random.RandomGenerator
 import kotlin.collections.ArrayList
 import kotlin.math.max
 import kotlin.math.roundToInt
 
-data class ScreenPos(val x: Float, val y: Float)
-
-data class DockProperty(val left: Float = 0f, val top: Float = 0f, val right: Float = 0f, val bottom: Float = 0f) {
-	val isEmpty get() = left == 0f && right == 0f && top == 0f && bottom == 0f
-	val horizontal get() = left + right
-	val vertical get() = top + bottom
-
-	operator fun plus(other: DockProperty): DockProperty {
-		return DockProperty(
-			left + other.left,
-			top + other.top,
-			right + other.right,
-			bottom + other.bottom
-		)
-	}
-
-	operator fun minus(other: DockProperty): DockProperty {
-		return DockProperty(
-			left - other.left,
-			top - other.top,
-			right - other.right,
-			bottom - other.bottom
-		)
-	}
-
-	operator fun plus(other: Float): DockProperty {
-		return DockProperty(
-			left + other,
-			top + other,
-			right + other,
-			bottom + other
-		)
-	}
-
-	operator fun minus(other: Float): DockProperty {
-		return DockProperty(
-			left - other,
-			top - other,
-			right - other,
-			bottom - other
-		)
-	}
-
-	companion object {
-		val EMPTY = DockProperty()
-	}
-}
-
-enum class Dock {
-	NONE, LEFT, RIGHT, TOP, BOTTOM, FILL
-}
-
-enum class DockResizeMode(val changeWidth: Boolean, val changeHeight: Boolean) {
-	ALL(true, true), NONE(false, false), WIDTH(true, false), HEIGHT(false, true)
-}
-
-data class Rect2f(val x: Float, val y: Float, val width: Float, val height: Float) {
-	fun toIntRect(): Rect2i {
-		return Rect2i(x.roundToInt(), y.roundToInt(), width.roundToInt(), height.roundToInt())
-	}
-}
-
 open class EditablePanel<out S : Screen>(
 	val screen: S,
 	parent: EditablePanel<*>?,
@@ -175,18 +112,14 @@ open class EditablePanel<out S : Screen>(
 		}
 	}
 
-	val random: RandomSource by lazy {
+	val random: GJRAND64RandomSource by lazy {
 		if (screen is MatteryScreen<*>) {
 			screen.menu.random
 		} else {
-			RandomSource.create()
+			GJRAND64RandomSource()
 		}
 	}
 
-	val randomGenerator: RandomGenerator by lazy {
-		RandomSource2Generator(random)
-	}
-
 	/**
 	 * Bigger values means lesser priority while docking, rendering and processing inputs.
 	 */
@@ -350,11 +283,13 @@ open class EditablePanel<out S : Screen>(
 
 						if (visibleChildrenParent?.contains(this) == false) {
 							visibleChildrenParent.add(this)
+							parent?.invalidateChildrenSorting()
 							parent?.layoutInvalidated = true
 						}
 					} else {
 						if (visibleChildrenParent?.contains(this) == true) {
 							visibleChildrenParent.remove(this)
+							parent?.invalidateChildrenSorting()
 							parent?.layoutInvalidated = true
 						}
 					}
@@ -843,6 +778,12 @@ open class EditablePanel<out S : Screen>(
 		childrenSortingInvalidated = true
 	}
 
+	protected open fun onChildrenAdded(child: EditablePanel<*>) {}
+	protected open fun onChildrenRemoved(child: EditablePanel<*>) {}
+
+	protected open fun onParented(parent: EditablePanel<*>) {}
+	protected open fun onUnParented(parent: EditablePanel<*>) {}
+
 	private fun onParent(child: EditablePanel<*>) {
 		if (childrenInternal.contains(child)) throw IllegalStateException("Already containing $child")
 		childrenInternal.add(child)
@@ -860,11 +801,15 @@ open class EditablePanel<out S : Screen>(
 			else
 				updateVisibility = true
 		}
+
+		onChildrenAdded(child)
+		child.onParented(this)
 	}
 
 	private fun onUnParent(child: EditablePanel<*>) {
 		val indexOf = childrenInternal.indexOf(child)
 		if (indexOf == -1) throw IllegalStateException("Already not containing $child")
+		child.onUnParented(this)
 		childrenInternal.removeAt(indexOf)
 		invalidateChildrenSorting()
 
@@ -876,6 +821,8 @@ open class EditablePanel<out S : Screen>(
 		if (child.isVisible() != isVisible()) {
 			updateVisible()
 		}
+
+		onChildrenRemoved(child)
 	}
 
 	private fun sortChildren() {
@@ -944,12 +891,11 @@ open class EditablePanel<out S : Screen>(
 		}
 	}
 
-	fun render(graphics: MGUIGraphics, mouseX: Float, mouseY: Float, partialTick: Float) {
+	fun render(graphics: MGUIGraphics, mouseX: Float, mouseY: Float, partialTick: Float, debugSegments: MutableList<LinePoint>) {
 		once = true
 
-		if (!isVisible()) {
+		if (!isVisible())
 			return
-		}
 
 		val poseStack = graphics.pose
 
@@ -997,12 +943,19 @@ open class EditablePanel<out S : Screen>(
 			child.absoluteX = absoluteX + child.x + xOffset
 			child.absoluteY = absoluteY + child.y + yOffset
 
-			child.render(graphics, mouseX, mouseY, partialTick)
+			child.render(graphics, mouseX, mouseY, partialTick, debugSegments)
 		}
 
 		if (scissor) {
 			popScissorRect()
 		}
+
+		if (minecraft.entityRenderDispatcher.shouldRenderHitBoxes()) {
+			debugSegments.add(LinePoint(absoluteX, absoluteY, 					absoluteX + width, absoluteY))
+			debugSegments.add(LinePoint(absoluteX + width, absoluteY, 			absoluteX + width, absoluteY + height))
+			debugSegments.add(LinePoint(absoluteX + width, absoluteY + height, 	absoluteX, absoluteY + height))
+			debugSegments.add(LinePoint(absoluteX, absoluteY + height, 			absoluteX, absoluteY))
+		}
 	}
 
 	fun updateCursor0(): Boolean {
@@ -1508,6 +1461,7 @@ open class EditablePanel<out S : Screen>(
 
 			if (old != new) {
 				child.visibilityChanges(new, old)
+				child.invalidateChildrenSorting()
 			}
 
 			child.updateVisible()

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/Panel2Widget.kt

@@ -4,6 +4,8 @@ import net.minecraft.client.gui.GuiGraphics
 import net.minecraft.client.gui.components.Renderable
 import net.minecraft.client.gui.components.events.GuiEventListener
 import net.minecraft.client.gui.screens.Screen
+import ru.dbotthepony.kommons.math.RGBAColor
+import ru.dbotthepony.mc.otm.client.render.LinePoint
 import ru.dbotthepony.mc.otm.client.render.MGUIGraphics
 
 // before 1.19.3 Renderable was Widget
@@ -21,11 +23,17 @@ class Panel2Widget<out S: Screen, out P : EditablePanel<S>>(
 		val yFloat = mouseY.toFloat()
 
 		val wrap = MGUIGraphics(graphics)
+		val segments = ArrayList<LinePoint>()
 
 		panel.tickHovered0(xFloat, yFloat, false)
 		panel.tickHovered1()
 		panel.tickHovered2()
-		panel.render(wrap, xFloat, yFloat, partialTick)
+		panel.render(wrap, xFloat, yFloat, partialTick, segments)
+
+		if (segments.isNotEmpty()) {
+			wrap.drawLine(0.5f, RGBAColor.GOLD, segments)
+		}
+
 		panel.renderTooltips(wrap, xFloat, yFloat, partialTick)
 	}
 

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

@@ -0,0 +1,115 @@
+package ru.dbotthepony.mc.otm.client.screen.panels
+
+import net.minecraft.client.renderer.Rect2i
+import kotlin.math.roundToInt
+
+data class ScreenPos(val x: Float, val y: Float)
+
+data class DockProperty(val left: Float = 0f, val top: Float = 0f, val right: Float = 0f, val bottom: Float = 0f) {
+	val isEmpty get() = left == 0f && right == 0f && top == 0f && bottom == 0f
+	val horizontal get() = left + right
+	val vertical get() = top + bottom
+
+	operator fun plus(other: DockProperty): DockProperty {
+		return DockProperty(
+			left + other.left,
+			top + other.top,
+			right + other.right,
+			bottom + other.bottom
+		)
+	}
+
+	operator fun minus(other: DockProperty): DockProperty {
+		return DockProperty(
+			left - other.left,
+			top - other.top,
+			right - other.right,
+			bottom - other.bottom
+		)
+	}
+
+	operator fun plus(other: Float): DockProperty {
+		return DockProperty(
+			left + other,
+			top + other,
+			right + other,
+			bottom + other
+		)
+	}
+
+	operator fun minus(other: Float): DockProperty {
+		return DockProperty(
+			left - other,
+			top - other,
+			right - other,
+			bottom - other
+		)
+	}
+
+	companion object {
+		val EMPTY = DockProperty()
+
+		@JvmStatic
+		fun all(value: Float): DockProperty {
+			return DockProperty(value, value, value, value)
+		}
+
+		@JvmStatic
+		@JvmOverloads
+		fun topLeft(top: Float, left: Float = top): DockProperty {
+			return DockProperty(left = left, top = top)
+		}
+
+		@JvmStatic
+		fun left(value: Float): DockProperty {
+			return DockProperty(left = value)
+		}
+
+		@JvmStatic
+		@JvmOverloads
+		fun topRight(top: Float, right: Float = top): DockProperty {
+			return DockProperty(right = right, top = top)
+		}
+
+		@JvmStatic
+		fun right(value: Float): DockProperty {
+			return DockProperty(right = value)
+		}
+
+		@JvmStatic
+		fun top(value: Float): DockProperty {
+			return DockProperty(top = value)
+		}
+
+		@JvmStatic
+		@JvmOverloads
+		fun bottomLeft(bottom: Float, left: Float = bottom): DockProperty {
+			return DockProperty(left = left, bottom = bottom)
+		}
+
+		@JvmStatic
+		@JvmOverloads
+		fun bottomRight(bottom: Float, right: Float = bottom): DockProperty {
+			return DockProperty(right = right, bottom = bottom)
+		}
+
+		@JvmStatic
+		fun bottom(value: Float): DockProperty {
+			return DockProperty(bottom = value)
+		}
+	}
+}
+
+enum class Dock {
+	NONE, LEFT, RIGHT, TOP, BOTTOM, FILL
+}
+
+enum class DockResizeMode(val changeWidth: Boolean, val changeHeight: Boolean) {
+	ALL(true, true), NONE(false, false), WIDTH(true, false), HEIGHT(false, true)
+}
+
+data class Rect2f(val x: Float, val y: Float, val width: Float, val height: Float) {
+	fun toIntRect(): Rect2i {
+		return Rect2i(x.roundToInt(), y.roundToInt(), width.roundToInt(), height.roundToInt())
+	}
+}

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/util/GridPanel.kt

@@ -7,6 +7,9 @@ import ru.dbotthepony.mc.otm.client.screen.panels.EditablePanel
 import ru.dbotthepony.mc.otm.client.screen.panels.slot.AbstractSlotPanel
 import ru.dbotthepony.mc.otm.core.collect.filter
 import ru.dbotthepony.mc.otm.core.collect.maybe
+import java.util.stream.IntStream
+import java.util.stream.Stream
+import kotlin.math.max
 
 open class GridPanel<out S : Screen>(
 	screen: S,
@@ -20,25 +23,150 @@ open class GridPanel<out S : Screen>(
 ) : EditablePanel<S>(screen, parent, x, y, width, height) {
 	var columns: Int = columns
 		set(value) {
-			field = value
+			if (field != value) {
-			invalidateLayout()
+				field = value
+				invalidateLayout()
+			}
 		}
 
 	var rows: Int = rows
 		set(value) {
-			field = value
+			if (field != value) {
-			invalidateLayout()
+				field = value
+				invalidateLayout()
+			}
 		}
 
 	var gravity: RenderGravity = RenderGravity.CENTER_CENTER
 		set(value) {
-			field = value
+			if (field != value) {
-			invalidateLayout()
+				field = value
+				invalidateLayout()
+			}
 		}
 
+	var layout: Layout = Layout.TOP_LEFT
+		set(value) {
+			if (field != value) {
+				field = value
+				invalidateLayout()
+			}
+		}
+
+	var columnMajorOrder = false
+		set(value) {
+			if (field != value) {
+				field = value
+				invalidateLayout()
+			}
+		}
+
+	enum class Layout {
+		TOP_LEFT {
+			override fun get(
+				list: List<EditablePanel<*>>,
+				row: Int,
+				column: Int,
+				rows: Int,
+				columns: Int,
+				columnMajorOrder: Boolean
+			): EditablePanel<*>? {
+				if (columnMajorOrder) {
+					return list.getOrNull(row + column * rows)
+				} else {
+					return list.getOrNull(column + row * columns)
+				}
+			}
+		},
+
+		TOP_RIGHT {
+			override fun get(
+				list: List<EditablePanel<*>>,
+				row: Int,
+				column: Int,
+				rows: Int,
+				columns: Int,
+				columnMajorOrder: Boolean
+			): EditablePanel<*>? {
+				if (columnMajorOrder) {
+					return list.getOrNull(row + (columns - column - 1) * rows)
+				} else {
+					return list.getOrNull((columns - column - 1) + row * columns)
+				}
+			}
+		},
+
+		BOTTOM_LEFT {
+			override fun get(
+				list: List<EditablePanel<*>>,
+				row: Int,
+				column: Int,
+				rows: Int,
+				columns: Int,
+				columnMajorOrder: Boolean
+			): EditablePanel<*>? {
+				if (columnMajorOrder) {
+					return list.getOrNull((rows - row - 1) + column * rows)
+				} else {
+					return list.getOrNull(column + (rows - row - 1) * columns)
+				}
+			}
+		},
+
+		BOTTOM_RIGHT {
+			override fun get(
+				list: List<EditablePanel<*>>,
+				row: Int,
+				column: Int,
+				rows: Int,
+				columns: Int,
+				columnMajorOrder: Boolean
+			): EditablePanel<*>? {
+				if (columnMajorOrder) {
+					return list.getOrNull((rows - row - 1) + (columns - column - 1) * rows)
+				} else {
+					return list.getOrNull((columns - column - 1) + (rows - row - 1) * columns)
+				}
+			}
+		};
+
+		abstract fun get(list: List<EditablePanel<*>>, row: Int, column: Int, rows: Int, columns: Int, columnMajorOrder: Boolean): EditablePanel<*>?
+	}
+
+	override fun sizeToContents() {
+		if (visibleChildren.isEmpty()) {
+			// nothing to size against
+			return
+		}
+
+		visibleChildren.forEach { it.sizeToContents() }
+
+		var width = 0f
+		var height = 0f
+
+		val children = visibleChildren.filter { it.dock == Dock.NONE }
+
+		for (row in 0 until rows) {
+			var maxHeight = 0f
+			var rowWidth = 0f
+
+			for (column in 0 until columns) {
+				val nextChild = layout.get(children, row, column, rows, columns, columnMajorOrder) ?: continue
+				rowWidth += nextChild.width + nextChild.dockMargin.horizontal
+				maxHeight = max(maxHeight, nextChild.height + nextChild.dockMargin.vertical)
+			}
+
+			height += maxHeight
+			width = max(width, rowWidth)
+		}
+
+		this.width = width
+		this.height = height
+	}
+
 	override fun performLayout() {
 		super.performLayout()
-		var children = visibleChildren.iterator().filter { it.dock == Dock.NONE }
+		val children = visibleChildren.filter { it.dock == Dock.NONE }
 
 		var totalWidth = 0f
 		var totalHeight = 0f
@@ -48,7 +176,7 @@ open class GridPanel<out S : Screen>(
 			var width = 0f
 
 			for (column in 0 until columns) {
-				val child = children.maybe() ?: break
+				val child = layout.get(children, row, column, rows, columns, columnMajorOrder) ?: continue
 				width += child.dockedWidth
 				maxHeight = maxHeight.coerceAtLeast(child.dockedHeight)
 			}
@@ -59,7 +187,6 @@ open class GridPanel<out S : Screen>(
 
 		val alignX = gravity.repositionX(width, totalWidth)
 		val alignY = gravity.repositionY(height, totalHeight)
-		children = visibleChildren.iterator().filter { it.dock == Dock.NONE }
 
 		totalWidth = 0f
 		totalHeight = 0f
@@ -69,7 +196,7 @@ open class GridPanel<out S : Screen>(
 			var width = 0f
 
 			for (column in 0 until columns) {
-				val child = children.maybe() ?: break
+				val child = layout.get(children, row, column, rows, columns, columnMajorOrder) ?: continue
 				child.x = alignX + width
 				child.y = alignY + totalHeight
 				width += child.dockedWidth

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

@@ -7,6 +7,7 @@ import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap
 import net.minecraft.ChatFormatting
 import net.minecraft.client.Minecraft
 import net.minecraft.network.chat.Component
+import net.minecraft.util.RandomSource
 import net.minecraft.world.entity.player.Inventory
 import net.minecraft.world.item.ItemStack
 import net.neoforged.neoforge.network.PacketDistributor
@@ -34,6 +35,7 @@ import ru.dbotthepony.mc.otm.config.MachinesConfig
 import ru.dbotthepony.kommons.math.RGBAColor
 import ru.dbotthepony.mc.otm.player.matteryPlayer
 import ru.dbotthepony.mc.otm.client.screen.panels.button.BooleanButtonPanel
+import ru.dbotthepony.mc.otm.core.nextFloat
 import ru.dbotthepony.mc.otm.menu.tech.AndroidStationMenu
 import ru.dbotthepony.mc.otm.network.AndroidResearchRequestPacket
 import java.util.*
@@ -540,14 +542,14 @@ class AndroidStationScreen(p_97741_: AndroidStationMenu, p_97742_: Inventory, p_
 
 				if (isPreview && !layoutInvalidated) {
 					if (firstTick) {
-						scroller.init.invoke(this, randomGenerator)
+						scroller.init.invoke(this, random)
 					}
 
-					val status = scroller.scroll.invoke(this, randomGenerator)
+					val status = scroller.scroll.invoke(this, random)
 
 					if (!status) {
 						scroller = PreviewScrollers.entries.let { it[random.nextInt(it.size)] }
-						scroller.init.invoke(this, randomGenerator)
+						scroller.init.invoke(this, random)
 					}
 				}
 			}

src/main/kotlin/ru/dbotthepony/mc/otm/core/Ext.kt

@@ -662,3 +662,21 @@ fun RandomSource.nextNormalDoubles(stddev: Double, mean: Double): DoublePair {
 fun RandomSource.nextNormalDouble(stddev: Double, mean: Double): Double {
 	return nextGaussian() * stddev + mean
 }
+
+fun RandomSource.nextFloat(min: Float, max: Float): Float {
+	if (this is RandomGenerator)
+		return nextFloat(min, max)
+
+	require(max >= min) { "Min is bigger than max: $min vs $max" }
+	if (min == max) return min
+	return min + nextFloat() * (max - min)
+}
+
+fun RandomSource.nextDouble(min: Double, max: Double): Double {
+	if (this is RandomGenerator)
+		return nextDouble(min, max)
+
+	require(max >= min) { "Min is bigger than max: $min vs $max" }
+	if (min == max) return min
+	return min + nextDouble() * (max - min)
+}

src/main/kotlin/ru/dbotthepony/mc/otm/core/math/Clustering.kt

@@ -1,6 +1,7 @@
 package ru.dbotthepony.mc.otm.core.math
 
 import it.unimi.dsi.fastutil.objects.ObjectArrayList
+import net.minecraft.util.RandomSource
 import ru.dbotthepony.mc.otm.core.random
 import java.util.random.RandomGenerator
 import kotlin.math.min
@@ -88,7 +89,7 @@ private class MutableCluster<V : Comparable<V>>(var center: V) {
 }
 
 private fun <V : Comparable<V>> Iterable<V>.clusterize(
-	random: RandomGenerator,
+	random: RandomSource,
 	initialClusters: Int = 1,
 	zeroBound: Boolean = false,
 	identity: V,
@@ -202,7 +203,7 @@ private fun <V : Comparable<V>> Iterable<V>.clusterize(
 // TODO: could use some tweaking
 private val DECIMAL_ERROR_TOLERANCE = Decimal("0.02")
 
-fun Iterable<Decimal>.clusterize(random: RandomGenerator, clusters: Int? = null, zeroBound: Boolean = false): List<Cluster<Decimal>> {
+fun Iterable<Decimal>.clusterize(random: RandomSource, clusters: Int? = null, zeroBound: Boolean = false): List<Cluster<Decimal>> {
 	return clusterize(random, clusters ?: 1, zeroBound, Decimal.ZERO, Decimal::plus, Decimal::minus, Decimal::div, Decimal::absoluteValue) { min, max, error ->
 		if (clusters != null)
 			false

src/main/kotlin/ru/dbotthepony/mc/otm/core/util/Formatting.kt

@@ -9,6 +9,7 @@ import net.minecraft.network.chat.FormattedText
 import net.minecraft.network.chat.MutableComponent
 import net.minecraft.world.inventory.tooltip.TooltipComponent
 import ru.dbotthepony.kommons.math.RGBAColor
+import ru.dbotthepony.mc.otm.THREAD_LOCAL_RANDOM
 import ru.dbotthepony.mc.otm.client.render.ChartLevelLabels
 import ru.dbotthepony.mc.otm.client.render.ChartTooltipElement
 import ru.dbotthepony.mc.otm.config.ClientConfig
@@ -453,10 +454,8 @@ private fun formatHistoryChart(
 			labelNames[0f] = (-maxTransferred).formatSiComponent(suffix, decimals, formatAsReadable = verbose, bias = bias)
 			labelNames[1f] = maxReceived.formatSiComponent(suffix, decimals, formatAsReadable = verbose, bias = bias)
 
-			val rand = java.util.Random()
-
 			if (maxTransferred.isNotZero && transferredMult > 0.2f) {
-				for (cluster in widget.transferred.clusterize(rand, zeroBound = true)) {
+				for (cluster in widget.transferred.clusterize(THREAD_LOCAL_RANDOM, zeroBound = true)) {
 					val perc = (cluster.center / maxTransferred).toFloat() * transferredMult
 
 					if (labelNames.keys.none { (it - perc).absoluteValue < 0.08f })
@@ -465,7 +464,7 @@ private fun formatHistoryChart(
 			}
 
 			if (maxReceived.isNotZero && receivedMult > 0.2f) {
-				for (cluster in widget.received.clusterize(rand, zeroBound = true)) {
+				for (cluster in widget.received.clusterize(THREAD_LOCAL_RANDOM, zeroBound = true)) {
 					val perc = zero + (cluster.center / maxReceived).toFloat() * receivedMult
 
 					if (labelNames.keys.none { (it - perc).absoluteValue < 0.08f })
@@ -473,7 +472,7 @@ private fun formatHistoryChart(
 				}
 			}
 
-			val clusters = diff.asIterable().clusterize(rand, zeroBound = true)
+			val clusters = diff.asIterable().clusterize(THREAD_LOCAL_RANDOM, zeroBound = true)
 
 			for (cluster in clusters) {
 				val perc: Float

src/main/kotlin/ru/dbotthepony/mc/otm/menu/MatteryMenu.kt

@@ -44,6 +44,7 @@ import ru.dbotthepony.mc.otm.container.sortWithIndices
 import ru.dbotthepony.mc.otm.core.ResourceLocation
 import ru.dbotthepony.mc.otm.core.collect.ConditionalSet
 import ru.dbotthepony.mc.otm.core.math.Decimal
+import ru.dbotthepony.mc.otm.core.util.GJRAND64RandomSource
 import ru.dbotthepony.mc.otm.menu.input.BooleanInputWithFeedback
 import ru.dbotthepony.mc.otm.menu.widget.ProfiledLevelGaugeWidget
 import ru.dbotthepony.mc.otm.network.MatteryStreamCodec
@@ -81,7 +82,7 @@ abstract class MatteryMenu(
 	val mSynchronizer = SynchableGroup()
 	val synchronizerRemote = mSynchronizer.Remote()
 	val player: Player get() = inventory.player
-	val random: RandomSource = RandomSource.create()
+	val random = GJRAND64RandomSource()
 
 	private val _playerInventorySlots = ArrayList<InventorySlot>()
 	private val _playerHotbarSlots = ArrayList<InventorySlot>()