public BoneMatrix2D Invert(BoneMatrix2D target)
{
var a = this.a;
var b = this.b;
var c = this.c;
var d = this.d;
var tx = this.tx;
var ty = this.ty;
if (b == 0 && c == 0)
{
target.b = target.c = 0;
if (a == 0 || d == 0)
{
target.a = target.d = target.tx = target.ty = 0;
}
else
{
a = target.a = 1 / a;
d = target.d = 1 / d;
target.tx = -a * tx;
target.ty = -d * ty;
}
return(this);
}
var determinant = a * d - b * c;
if (determinant == 0)
{
target.Identity();
return(this);
}
determinant = 1 / determinant;
var k = target.a = d * determinant;
b = target.b = -b * determinant;
c = target.c = -c * determinant;
d = target.d = a * determinant;
target.tx = -(k * tx + c * ty);
target.ty = -(b * tx + d * ty);
return(this);
}
private static SpineData.AnimationDeformData ParseDeformAnimTimeline(SpineArmatureEditor armatureEditor, string skinName, string slotname, string attchmentname, Bones2D.JSONArray deformAnimObj)
{
SpineData.AnimationDeformData animDeformDatas = new SpineData.AnimationDeformData();
animDeformDatas.slotName = slotname;
animDeformDatas.skinName = skinName;
animDeformDatas.timelines = new SpineData.DeformTimeline[deformAnimObj.Count];
SpineData.SkinAttachment skinAtt = GetSkinAttachment(armatureEditor, skinName, slotname, attchmentname);
bool haveWeight = (skinAtt == null || skinAtt.weights == null || skinAtt.weights.Count == 0) ? false : true;
for (int i = 0; i < deformAnimObj.Count; ++i)
{
SpineData.DeformTimeline timeline = new SpineData.DeformTimeline();
animDeformDatas.timelines[i] = timeline;
timeline.attachment = attchmentname;
Bones2D.JSONClass animObj = deformAnimObj[i].AsObject;
if (animObj.ContainKey("time"))
{
timeline.time = animObj["time"].AsFloat;
}
if (animObj.ContainKey("curve"))
{
if (animObj["curve"] == "stepped")
{
timeline.tweenEasing = "stepped";
}
else if (animObj["curve"] == "linear")
{
//default
}
else
{
timeline.curve = ConvertJsonArrayToFloatArr(animObj["curve"].AsArray);
}
}
if (animObj.ContainKey("offset"))
{
timeline.offset = animObj["offset"].AsInt / 2;
}
if (animObj.ContainKey("vertices"))
{
Bones2D.JSONArray verticesObj = animObj["vertices"].AsArray;
int index = 0;
int k = 0;
timeline.vertices = new Vector3[verticesObj.Count / 2];
for (; k < verticesObj.Count && k + 1 < verticesObj.Count; k += 2)
{
timeline.vertices[index] = new Vector3(verticesObj[k].AsFloat * armatureEditor.unit, verticesObj[k + 1].AsFloat * armatureEditor.unit, 0f);
++index;
}
armatureEditor.ffdKV [attchmentname] = true;
if (haveWeight)
{
CreateBonePose(armatureEditor);
BoneMatrix2D matrix = new BoneMatrix2D();
int vertexIndex = 0;
int offset = timeline.offset;
int newOffset = 0;
for (int j = 0; j < skinAtt.weights.Count; ++j)
{
int boneCount = (int)skinAtt.weights[j];
if (offset <= 0)
{
Vector3 v = timeline.vertices [vertexIndex];
Vector3 result = new Vector3();
for (int w = 0; w < boneCount * 4; w += 4)
{
int boneIndex = (int)skinAtt.weights [j + w + 1];
SpineData.BoneData boneData = armatureEditor.armatureData.bones [boneIndex];
float weight = skinAtt.weights [j + w + 4];
BoneMatrix2D boneMatrix = armatureEditor.bonePoseKV [boneData.name];
matrix.Identity();
matrix.a = boneMatrix.a;
matrix.b = boneMatrix.b;
matrix.c = boneMatrix.c;
matrix.d = boneMatrix.d;
matrix.Invert(); //to local
Vector2 p = matrix.TransformPoint(v.x, v.y);
result.x += p.x * weight;
result.y += p.y * weight;
}
timeline.vertices [vertexIndex] = result;
++vertexIndex;
if (vertexIndex >= timeline.vertices.Length)
{
break;
}
}
else
{
++newOffset;
}
offset -= boneCount;
j += boneCount * 4;
}
timeline.offset = newOffset;
}
}
}
return(animDeformDatas);
}