Fix controller paging regression in creative menu

Preserve smooth row-by-row scrolling for mouse wheel input, but restore
full-page movement for controller/menu scroll actions in the creative
inventory.

Commit 3093ca3 changed page indexing to support smooth scrolling, which
caused ACTION_MENU_OTHER_STICK_UP/DOWN to advance by one row instead of
one page. Track whether the scroll action originated from the mouse
wheel and only use single-row steps in that case.

Fixes #253

1 files changed, 5 insertions, 0 deletions

diff --git a/Minecraft.Client/Windows64/KeyboardMouseInput.cpp b/Minecraft.Client/Windows64/KeyboardMouseInput.cpp
index 7ab99a71..95c3f4fc 100644
--- a/Minecraft.Client/Windows64/KeyboardMouseInput.cpp
+++ b/Minecraft.Client/Windows64/KeyboardMouseInput.cpp
@@ -33,6 +33,7 @@ void KeyboardMouseInput::Init()
 	m_mouseDeltaAccumX = 0;
 	m_mouseDeltaAccumY = 0;
 	m_mouseWheelAccum = 0;
+	m_mouseWheelConsumed = false;
 	m_mouseGrabbed = false;
 	m_cursorHiddenForUI = false;
 	m_windowFocused = true;
@@ -67,6 +68,7 @@ void KeyboardMouseInput::ClearAllState()
 	m_mouseDeltaAccumX = 0;
 	m_mouseDeltaAccumY = 0;
 	m_mouseWheelAccum = 0;
+	m_mouseWheelConsumed = false;
 }
 
 void KeyboardMouseInput::Tick()
@@ -88,6 +90,7 @@ void KeyboardMouseInput::Tick()
 	m_mouseDeltaY = m_mouseDeltaAccumY;
 	m_mouseDeltaAccumX = 0;
 	m_mouseDeltaAccumY = 0;
+	m_mouseWheelConsumed = false;
 
 	m_hasInput = (m_mouseDeltaX != 0 || m_mouseDeltaY != 0 || m_mouseWheelAccum != 0);
 	if (!m_hasInput)
@@ -172,6 +175,8 @@ void KeyboardMouseInput::OnMouseWheel(int delta)
 int KeyboardMouseInput::GetMouseWheel()
 {
 	int val = m_mouseWheelAccum;
+	if (val != 0)
+		m_mouseWheelConsumed = true;
 	m_mouseWheelAccum = 0;
 	return val;
 }