fix: colkind uses BBoxMode (cubeww#12)

Author: ithinkandicode

ExportToGMS1Project.csx

@@ -101,7 +101,7 @@ void ExportSprite(UndertaleSprite sprite)
             new XElement("type", "0"),
             new XElement("xorig", sprite.OriginX.ToString()),
             new XElement("yorigin", sprite.OriginY.ToString()),
-            new XElement("colkind", sprite.BBoxMode.ToString()),
+            new XElement("colkind", (int)sprite.SepMasks == 1 ? 1 : 0),
             new XElement("coltolerance", "0"),
             new XElement("sepmasks", sprite.SepMasks.ToString("D")),
             new XElement("bboxmode", sprite.BBoxMode.ToString()),