Fixed sprite drawing functions.

They ask now for a blob. I should find a way to convert them from
an array from the interpreter's side so it'll be probably faster.

sq/lib_glue.c

@@ -331,10 +331,10 @@ static const SQRegFunction n2d_funcs[]={
     _DECL_GLOBALIO_FUNC(setPixelRGB,6,_SC(".iiiii")),
     _DECL_GLOBALIO_FUNC(drawHLine,4,_SC(".iii")),
     _DECL_GLOBALIO_FUNC(fillRect,5,_SC(".iiii")),
-    _DECL_GLOBALIO_FUNC(drawSprite,6,_SC(".uiiii")),
-    _DECL_GLOBALIO_FUNC(drawSpritePart,10,_SC(".uiiiiiiii")),
-    _DECL_GLOBALIO_FUNC(drawSpriteScaled,8,_SC(".uiiiiiiii")),
-    _DECL_GLOBALIO_FUNC(drawSpriteRotated,13,_SC(".uiiiiiiiiiii")),
+    _DECL_GLOBALIO_FUNC(drawSprite,6,_SC(".xiiii")),
+    _DECL_GLOBALIO_FUNC(drawSpritePart,10,_SC(".xiiiiiiii")),
+    _DECL_GLOBALIO_FUNC(drawSpriteScaled,8,_SC(".xiiiiiiii")),
+    _DECL_GLOBALIO_FUNC(drawSpriteRotated,13,_SC(".xiiiiiiiiiii")),
     _DECL_GLOBALIO_FUNC(fillRect,5,_SC(".iiii")),
     _DECL_GLOBALIO_FUNC(fillCircle,5,_SC(".iiii")),
     _DECL_GLOBALIO_FUNC(fillEllipse,5,_SC(".iiiii")),