Roblox-File-Format/XmlFormat/Tokens/PhysicalProperties.cs
CloneTrooper1019 de8df15d3f Large scale refactor to add class support!
Instance classes are now strongly typed with real property fields that
are derived from the JSON API Dump! This required a lot of reworking
across the board:

- Classes and Enums are auto-generated in the 'Generated' folder now.
This is done using a custom built-in plugin, which can be found in
the Plugins folder of this project.
- Property objects are now tied to .NET's reflection system. Reading
and writing from them will try to redirect into a field of the
Instance they are bound to.
- Property types that were loosely defined now have proper data types
(such as Color3uint8, Content, ProtectedString, SharedString, etc)
- Fixed an error with the CFrame directional vectors.
- The binary PRNT chunk now writes instances in child->parent order.
- Enums are now generated correctly, with up-to-date values.
- INST chunks are now referred to as 'Classes' instead of 'Types'.
- Unary operator added to Vector2 and Vector3.
- CollectionService tags can now be manipulated per-instance using
the Instance.Tags member.
- The Instance.Archivable property now works correctly.
- XML files now save/load metadata correctly.
- Cleaned up the property tokens directory.

I probably missed a few things, but that's a general overview of
everything that changed.
2019-06-30 17:01:19 -05:00

88 lines
2.7 KiB
C#

using System;
using System.Collections.Generic;
using System.Xml;
using RobloxFiles.DataTypes;
namespace RobloxFiles.XmlFormat.PropertyTokens
{
public class PhysicalPropertiesToken : IXmlPropertyToken
{
public string Token => "PhysicalProperties";
private Func<string, T> createReader<T>(Func<string, T> parse, XmlNode token) where T : struct
{
return new Func<string, T>(key =>
{
XmlElement node = token[key];
return parse(node.InnerText);
});
}
public bool ReadProperty(Property prop, XmlNode token)
{
var readBool = createReader(bool.Parse, token);
var readFloat = createReader(Formatting.ParseFloat, token);
try
{
bool custom = readBool("CustomPhysics");
prop.Type = PropertyType.PhysicalProperties;
if (custom)
{
prop.Value = new PhysicalProperties
(
readFloat("Density"),
readFloat("Friction"),
readFloat("Elasticity"),
readFloat("FrictionWeight"),
readFloat("ElasticityWeight")
);
}
return true;
}
catch
{
return false;
}
}
public void WriteProperty(Property prop, XmlDocument doc, XmlNode node)
{
bool hasCustomPhysics = (prop.Value != null);
XmlElement customPhysics = doc.CreateElement("CustomPhysics");
customPhysics.InnerText = hasCustomPhysics
.ToString()
.ToLower();
node.AppendChild(customPhysics);
if (hasCustomPhysics)
{
var customProps = prop.CastValue<PhysicalProperties>();
var data = new Dictionary<string, float>()
{
{ "Density", customProps.Density },
{ "Friction", customProps.Friction },
{ "Elasticity", customProps.Elasticity },
{ "FrictionWeight", customProps.FrictionWeight },
{ "ElasticityWeight", customProps.ElasticityWeight }
};
foreach (string elementType in data.Keys)
{
float value = data[elementType];
XmlElement element = doc.CreateElement(elementType);
element.InnerText = value.ToInvariantString();
node.AppendChild(element);
}
}
}
}
}