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

@@ -657,9 +657,16 @@ abstract class MatteryScreen<T : MatteryMenu>(menu: T, inventory: Inventory, tit
 		this.renderBackground(graphics, mouseX, mouseY, partialTick)
 
 		super.hoveredSlot = null
-
 		var hovered = false
-		panels.forEach { hovered = it.tickHovered0(mouseXf, mouseYf, hovered) }
+
+		for (panel in panels) {
+			if (hovered) {
+				panel.unsetHovered()
+			} else if (panel.tickHovered0(mouseXf, mouseYf)) {
+				hovered = true
+			}
+		}
+
 		panels.forEach { it.tickHovered1() }
 		panels.forEach { it.tickHovered2() }
 

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

@@ -1006,16 +1006,9 @@ open class EditablePanel<out S : Screen>(
 	/**
 	 * Determining whenever panel is hovered or not
 	 */
-	fun tickHovered0(mouseX: Float, mouseY: Float, somethingElseHovered: Boolean): Boolean {
+	fun tickHovered0(mouseX: Float, mouseY: Float): Boolean {
 		if (isRemoved)
-			return somethingElseHovered
+			return false
-		else if (somethingElseHovered) {
-			if (parent == null)
-				updateAbsolutePosition()
-
-			unsetHovered()
-			return true
-		}
 
 		val potentiallyHovered: Boolean
 
@@ -1032,7 +1025,14 @@ open class EditablePanel<out S : Screen>(
 
 		if (potentiallyHovered) {
 			var hit = false
-			visibleChildrenInternal.forEach { hit = it.tickHovered0(mouseX, mouseY, hit) }
+
+			for (child in visibleChildrenInternal) {
+				if (hit) {
+					child.unsetHovered()
+				} else if (child.tickHovered0(mouseX, mouseY)) {
+					hit = true
+				}
+			}
 
 			pendingIsHovered =
 					!hit &&
@@ -1404,14 +1404,7 @@ open class EditablePanel<out S : Screen>(
 
 		for (child in visibleChildrenInternal) {
 			when (child.dock) {
-				Dock.NONE -> {
+				Dock.NONE, Dock.FILL -> {} // do nothing
-					width = maxOf(width, child.x + child.width)
-					height = maxOf(height, child.y + child.height)
-				}
-
-				Dock.FILL -> {
-					throw RuntimeException()
-				} // do nothing
 
 				Dock.LEFT, Dock.RIGHT -> {
 					if (previousDock != 1) {

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

@@ -22,7 +22,7 @@ class Panel2Widget<out S: Screen, out P : EditablePanel<S>>(
 
 		val wrap = MGUIGraphics(graphics)
 
-		panel.tickHovered0(xFloat, yFloat, false)
+		panel.tickHovered0(xFloat, yFloat)
 		panel.tickHovered1()
 		panel.tickHovered2()
 		panel.render(wrap, xFloat, yFloat, partialTick)