public string NameOf(Animation.Frame frame, Animation.Element element)
{
int precedingOccurences = occurenceCache.GetPrecedingOccurencesCount(frame, element);
string name = $"{HashToName[element.Image]}_{element.Index}_{precedingOccurences}";
return(name);
}
private XmlElement MakeBoneNode(XmlDocument scml, Animation.Element element)
{
XmlElement obj = scml.CreateElement(string.Empty, "bone", string.Empty);
obj.SetAttribute("x", (element.M5 * 0.5f).ToString());
obj.SetAttribute("y", (element.M6 * -0.5f).ToString());
float scaleX = (float)Math.Sqrt(element.M1 * element.M1 + element.M2 * element.M2);
float scaleY = (float)Math.Sqrt(element.M3 * element.M3 + element.M4 * element.M4);
float det = element.M1 * element.M4 - element.M3 * element.M2;
if (det < 0)
{
scaleY = -scaleY;
}
float sinApprox = 0.5f * (element.M3 / scaleY - element.M2 / scaleX);
float cosApprox = 0.5f * (element.M1 / scaleX + element.M4 / scaleY);
float angle = (float)Math.Atan2(sinApprox, cosApprox);
if (angle < 0)
{
angle += (float)(2 * Math.PI);
}
angle *= (float)(180.0f / Math.PI);
obj.SetAttribute("angle", angle.ToString());
obj.SetAttribute("scale_x", scaleX.ToString());
obj.SetAttribute("scale_y", scaleY.ToString());
return(obj);
}
private XmlElement MakeObjectNode(XmlDocument scml, Animation.Element element, FileIdProvider fileIdProvider)
{
XmlElement obj = scml.CreateElement(string.Empty, "object", string.Empty);
obj.SetAttribute("folder", "0");
obj.SetAttribute("file", GetThisOrPrecedingFile(element, fileIdProvider));
return(obj);
}
/**
* Gets the number of times the sprite used by this element was used by elements
* in the given frame that came before this element in the frame's element list.
*
* Uses a simple caching scheme based on the frame for performance improvements.
*/
public int GetPrecedingOccurencesCount(Animation.Frame frame, Animation.Element element)
{
if (frame != associatedFrame)
{
RebuildCache(frame);
}
return(occurenceMap[element]);
}
private XmlElement MakeBoneRefNode(XmlDocument scml, Animation.Frame frame, Animation.Element element, int frameId, SymbolIdProvider symbolIdProvider)
{
XmlElement boneRef = scml.CreateElement(string.Empty, "bone_ref", string.Empty);
int id = symbolIdProvider.GetId(frame, element);
boneRef.SetAttribute("id", id.ToString());
boneRef.SetAttribute("timeline", id.ToString());
boneRef.SetAttribute("key", frameId.ToString());
return(boneRef);
}
private XmlElement MakeTimelineKeyNode(XmlDocument scml, Animation.Element element, int frameId, int rate, FileIdProvider fileIdProvider, ChildType childType)
{
XmlElement key = scml.CreateElement(string.Empty, "key", string.Empty);
key.SetAttribute("id", frameId.ToString());
key.SetAttribute("time", (frameId * rate).ToString());
switch (childType)
{
case ChildType.Sprite:
key.AppendChild(MakeObjectNode(scml, element, fileIdProvider));
break;
case ChildType.Bone:
key.AppendChild(MakeBoneNode(scml, element));
break;
}
return(key);
}
private string GetThisOrPrecedingFile(Animation.Element element, FileIdProvider fileIdProvider)
{
int index = element.Index;
while (index >= 0)
{
string name = $"{AnimationFile.HashToName[element.Image]}_{index}";
try
{
return(fileIdProvider.NameToFileId[name].ToString());
}
catch
{
index--;
}
}
// If a file doesn't exist for the sprite then assume that this is intentional and return no corresponding file
// Note that this is done because there are some sprites defined in Klei's animation files that do not have
// any corresponding actual texture/file to go with.
return("");
}
public int GetId(Animation.Frame frame, Animation.Element element)
{
string name = NameOf(frame, element);
return(IdMap[name]);
}
private XmlElement MakeObjectRefNode(XmlDocument scml, Animation.Frame frame, Animation.Element element, int frameId, int elementId, SpriteIdProvider spriteIdProvider, SymbolIdProvider symbolIdProvider)
{
XmlElement objectRef = scml.CreateElement(string.Empty, "object_ref", string.Empty);
string id = spriteIdProvider.GetId(frame, element).ToString();
objectRef.SetAttribute("id", id);
objectRef.SetAttribute("parent", symbolIdProvider.GetId(frame, element).ToString());
objectRef.SetAttribute("timeline", id);
objectRef.SetAttribute("key", frameId.ToString());
objectRef.SetAttribute("z_index", (frame.Elements - elementId).ToString());
return(objectRef);
}
