first commit

Minecraft.Client/ScreenSizeCalculator.cpp

@@ -0,0 +1,38 @@
+#include "stdafx.h"
+#include "ScreenSizeCalculator.h"
+#include "Options.h"
+
+ScreenSizeCalculator::ScreenSizeCalculator(Options *options, int width, int height, int forceScale/*=-1*/)
+{
+    w = width;
+    h = height;
+	if( forceScale == -1 )
+	{
+		scale = 1;
+
+		int maxScale = options->guiScale;
+		if (maxScale == 0) maxScale = 1000;
+		while (scale < maxScale && w / (scale + 1) >= 320 && h / (scale + 1) >= 240)
+		{
+			scale++;
+		}
+	}
+	else
+	{
+		scale = forceScale;
+	}
+    rawWidth = w / (double) scale;
+    rawHeight = h / (double) scale;
+    w = (int) ceil(rawWidth);
+    h = (int) ceil(rawHeight);
+}
+
+int ScreenSizeCalculator::getWidth()
+{
+	return w;
+}
+
+int ScreenSizeCalculator::getHeight()
+{
+	return h;
+}