Roblox-File-Format/Tokens/NumberSequence.cs
2021-06-05 17:21:12 -05:00

82 lines
2.6 KiB
C#

using System.Xml;
using RobloxFiles.DataTypes;
namespace RobloxFiles.Tokens
{
public class NumberSequenceToken : IXmlPropertyToken, IAttributeToken<NumberSequence>
{
public string XmlPropertyToken => "NumberSequence";
public AttributeType AttributeType => AttributeType.NumberSequence;
public bool ReadProperty(Property prop, XmlNode token)
{
string contents = token.InnerText.Trim();
string[] buffer = contents.Split(' ');
int length = buffer.Length;
bool valid = (length % 3 == 0);
if (valid)
{
try
{
NumberSequenceKeypoint[] keypoints = new NumberSequenceKeypoint[length / 3];
for (int i = 0; i < length; i += 3)
{
float Time = Formatting.ParseFloat(buffer[ i ]);
float Value = Formatting.ParseFloat(buffer[i + 1]);
float Envelope = Formatting.ParseFloat(buffer[i + 2]);
keypoints[i / 3] = new NumberSequenceKeypoint(Time, Value, Envelope);
}
prop.Type = PropertyType.NumberSequence;
prop.Value = new NumberSequence(keypoints);
}
catch
{
valid = false;
}
}
return valid;
}
public void WriteProperty(Property prop, XmlDocument doc, XmlNode node)
{
NumberSequence value = prop.CastValue<NumberSequence>();
node.InnerText = value.ToString() + ' ';
}
public NumberSequence ReadAttribute(RbxAttribute attr)
{
int numKeys = attr.ReadInt();
var keypoints = new NumberSequenceKeypoint[numKeys];
for (int i = 0; i < numKeys; i++)
{
float envelope = attr.ReadInt(),
time = attr.ReadFloat(),
value = attr.ReadFloat();
keypoints[i] = new NumberSequenceKeypoint(time, value, envelope);
}
return new NumberSequence(keypoints);
}
public void WriteAttribute(RbxAttribute attr, NumberSequence value)
{
attr.WriteInt(value.Keypoints.Length);
foreach (var keypoint in value.Keypoints)
{
attr.WriteFloat(keypoint.Envelope);
attr.WriteFloat(keypoint.Time);
attr.WriteFloat(keypoint.Value);
}
}
}
}