unity-wave-function-collapse

unity procedural level generation with the Wave Function Collapse algorithms · By selfsame

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1.0f is not a valid value for Single.

A topic by Dhelio created Nov 04, 2020 Views: 727 Replies: 4

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Dhelio4 years ago (2 edits)

Hi,

I'm trying to implement the Simple Tiled Model, but it throws exception on this line of SimpleTiledModel.cs:

for (int t = 0; t < cardinality; t++) tempStationary.Add(xtile.Get("weight", 1.0f));

The error is "

FormatException: Input string was not in a correct format.
System.Number.ParseSingle (System.String value, System.Globalization.NumberStyles options, System.Globalization.NumberFormatInfo numfmt) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Single.Parse (System.String s, System.Globalization.NumberStyles style, System.Globalization.NumberFormatInfo info) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Single.Parse (System.String s, System.Globalization.NumberStyles style, System.IFormatProvider provider) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.ComponentModel.SingleConverter.FromString (System.String value, System.Globalization.NumberFormatInfo formatInfo) (at <ae22a4e8f83c41d69684ae7f557133d9>:0)
System.ComponentModel.BaseNumberConverter.ConvertFrom (System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, System.Object value) (at <ae22a4e8f83c41d69684ae7f557133d9>:0)
Rethrow as Exception: 1.0f is not a valid value for Single.
System.ComponentModel.BaseNumberConverter.ConvertFrom (System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, System.Object value) (at <ae22a4e8f83c41d69684ae7f557133d9>:0)
System.ComponentModel.TypeConverter.ConvertFromString (System.String text) (at <ae22a4e8f83c41d69684ae7f557133d9>:0)
Stuff.Get[T] (System.Xml.XmlNode node, System.String attribute, T defaultT) (at Assets/unity-wave-function-collapse/impl/Stuff.cs:53)
SimpleTiledModel..ctor (System.String name, System.String subsetName, System.Int32 width, System.Int32 height, System.Boolean periodic) (at Assets/unity-wave-function-collapse/impl/SimpleTiledModel.cs:125)
SimpleTiledWFC.Generate () (at Assets/unity-wave-function-collapse/SimpleTiledWFC.cs:85)
TileSetEditor.OnInspectorGUI () (at Assets/unity-wave-function-collapse/SimpleTiledWFC.cs:135)
UnityEditor.UIElements.InspectorElement+<>c__DisplayClass58_0.<CreateIMGUIInspectorFromEditor>b__0 () (at <af78ad00a40d4f61b82afc6cafb0a416>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)"

selfsameDeveloper4 years ago

Hi @Dhelio I can take a look later today but could you post a link to your .xml file that it had generated? thanks!

Dhelio4 years ago

Sure!

https://pastebin.com/2CSbF3vk

Dhelio4 years ago

SOLVED.

Turns out that parsing float uses CultureInfo to determine what counts as a separator; for example, I'm italian and we typically use comma as separator, so writing the float in the xml file as "1.0" makes it not parsable according to italian CultureInfo. So weight values in the xml file should be separated by comma, not point.

Relevant Stackoverflow question: https://stackoverflow.com/questions/5592950/why-do-i-get-a-formatexception-when-...

selfsameDeveloper4 years ago

ah davvero, sto imparando italiano!

Try this, think it should fix it https://github.com/selfsame/unity-wave-function-collapse/releases/tag/basdlkjfas...

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unity-wave-function-collapse

1.0f is not a valid value for Single.