Default layout now emulates the pod interior

[ MFD UL ] [ MFD UC ] [ MFD UR ]
  [ plasma (reduced) ][ main screen (centered) ]
  [ MFD LL ] [   Map  ] [ MFD LR ]

SVGA16 moves the main game window into the middle band (centered under
the MFD columns) and shrinks the plasma glass to fill the space at its
left via a new PlasmaScreen::Position hook (the glass paint stretches to
the client area, so resizing rescales it). Lower row sits below the
main screen band.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

MUNGA_L4/L4PLASMASCREEN.cpp

@@ -61,6 +61,33 @@ namespace
 //############################ PlasmaScreen ##############################
 //########################################################################
 
+PlasmaScreen *PlasmaScreen::activeInstance = NULL;
+
+void
+	PlasmaScreen::Position(int x, int y, int client_width, int client_height)
+{
+	if (activeInstance == NULL || activeInstance->window == NULL)
+	{
+		return;
+	}
+
+	DWORD style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
+	RECT bounds;
+	bounds.left = 0;
+	bounds.top = 0;
+	bounds.right = client_width;
+	bounds.bottom = client_height;
+	AdjustWindowRect(&bounds, style, FALSE);
+
+	SetWindowPos(
+		(HWND) activeInstance->window, NULL,
+		x, y,
+		bounds.right - bounds.left,
+		bounds.bottom - bounds.top,
+		SWP_NOZORDER | SWP_NOACTIVATE
+	);
+}
+
 PlasmaScreen::PlasmaScreen():
 	Video8BitBuffered(plasmaWidth, plasmaHeight)
 {
@@ -119,6 +146,10 @@ PlasmaScreen::~PlasmaScreen()
 {
 	Check_Pointer(this);
 
+	if (activeInstance == this)
+	{
+		activeInstance = NULL;
+	}
 	if (window != NULL)
 	{
 		RemovePropA((HWND) window, "PlasmaBitmapInfo");
@@ -219,6 +250,7 @@ void
 		SetPropA((HWND) window, "PlasmaBitmapInfo", bitmapInfo);
 		SetPropA((HWND) window, "PlasmaPixels", pixelBuffer->Data.MapPointer);
 		ShowWindow((HWND) window, SW_SHOWNOACTIVATE);
+		activeInstance = this;
 	}
 	else
 	{