public IkConstraint(IkConstraintData data, Skeleton skeleton)
{
if (data == null)
{
throw new ArgumentNullException("data", "data cannot be null.");
}
if (skeleton == null)
{
throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
}
this.data = data;
mix = data.mix;
bendDirection = data.bendDirection;
bones = new ExposedList <Bone>(data.bones.Count);
foreach (BoneData boneData in data.bones)
{
bones.Add(skeleton.FindBone(boneData.name));
}
target = skeleton.FindBone(data.target.name);
}
public PathConstraint(PathConstraintData data, Skeleton skeleton)
{
if (data == null)
{
throw new ArgumentNullException("data", "data cannot be null.");
}
if (skeleton == null)
{
throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
}
this.data = data;
bones = new ExposedList <Bone>(data.Bones.Count);
foreach (BoneData boneData in data.bones)
{
bones.Add(skeleton.FindBone(boneData.name));
}
target = skeleton.FindSlot(data.target.name);
position = data.position;
spacing = data.spacing;
rotateMix = data.rotateMix;
translateMix = data.translateMix;
}
public TransformConstraint(TransformConstraintData data, Skeleton skeleton)
{
if (data == null)
{
throw new ArgumentNullException("data", "data cannot be null.");
}
if (skeleton == null)
{
throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
}
this.data = data;
rotateMix = data.rotateMix;
translateMix = data.translateMix;
scaleMix = data.scaleMix;
shearMix = data.shearMix;
bones = new ExposedList <Bone>();
foreach (BoneData boneData in data.bones)
{
bones.Add(skeleton.FindBone(boneData.name));
}
target = skeleton.FindBone(data.target.name);
}
public void Draw(Skeleton skeleton)
{
var skeletonX = skeleton.X;
var skeletonY = skeleton.Y;
var bones = skeleton.Bones;
if (DrawBones)
{
renderer.SetColor(boneLineColor);
for (int i = 0, n = bones.Count; i < n; i++)
{
var bone = bones.Items[i];
if (bone.Parent == null)
{
continue;
}
var x = bone.Data.Length * bone.A + bone.WorldX;
var y = bone.Data.Length * bone.C + bone.WorldY;
renderer.Line(bone.WorldX, bone.WorldY, x, y);
}
if (DrawSkeletonXY)
{
renderer.X(skeletonX, skeletonY, 4);
}
}
if (DrawRegionAttachments)
{
renderer.SetColor(attachmentLineColor);
var slots = skeleton.Slots;
for (int i = 0, n = slots.Count; i < n; i++)
{
var slot = slots.Items[i];
var attachment = slot.Attachment;
if (attachment is RegionAttachment)
{
var regionAttachment = (RegionAttachment)attachment;
var vertices = this.vertices;
regionAttachment.ComputeWorldVertices(slot.Bone, vertices, 0, 2);
renderer.Line(vertices[0], vertices[1], vertices[2], vertices[3]);
renderer.Line(vertices[2], vertices[3], vertices[4], vertices[5]);
renderer.Line(vertices[4], vertices[5], vertices[6], vertices[7]);
renderer.Line(vertices[6], vertices[7], vertices[0], vertices[1]);
}
}
}
if (DrawMeshHull || DrawMeshTriangles)
{
var slots = skeleton.Slots;
for (int i = 0, n = slots.Count; i < n; i++)
{
var slot = slots.Items[i];
var attachment = slot.Attachment;
if (!(attachment is MeshAttachment))
{
continue;
}
var mesh = (MeshAttachment)attachment;
var world = vertices = vertices.Length < mesh.WorldVerticesLength ? new float[mesh.WorldVerticesLength] : vertices;
mesh.ComputeWorldVertices(slot, 0, mesh.WorldVerticesLength, world, 0, 2);
int[] triangles = mesh.Triangles;
var hullLength = mesh.HullLength;
if (DrawMeshTriangles)
{
renderer.SetColor(triangleLineColor);
for (int ii = 0, nn = triangles.Count(); ii < nn; ii += 3)
{
int v1 = triangles[ii] * 2, v2 = triangles[ii + 1] * 2, v3 = triangles[ii + 2] * 2;
renderer.Triangle(world[v1], world[v1 + 1], //
world[v2], world[v2 + 1], //
world[v3], world[v3 + 1] //
);
}
}
if (DrawMeshHull && hullLength > 0)
{
renderer.SetColor(attachmentLineColor);
hullLength = (hullLength >> 1) * 2;
float lastX = vertices[hullLength - 2], lastY = vertices[hullLength - 1];
for (int ii = 0, nn = hullLength; ii < nn; ii += 2)
{
float x = vertices[ii], y = vertices[ii + 1];
renderer.Line(x, y, lastX, lastY);
lastX = x;
lastY = y;
}
}
}
}
if (DrawBoundingBoxes)
{
var bounds = this.bounds;
bounds.Update(skeleton, true);
renderer.SetColor(aabbColor);
renderer.Rect(bounds.MinX, bounds.MinY, bounds.Width, bounds.Height);
var polygons = bounds.Polygons;
var boxes = bounds.BoundingBoxes;
for (int i = 0, n = polygons.Count; i < n; i++)
{
var polygon = polygons.Items[i];
renderer.Polygon(polygon.Vertices, 0, polygon.Count);
}
}
if (DrawBones)
{
renderer.SetColor(boneOriginColor);
for (int i = 0, n = bones.Count; i < n; i++)
{
var bone = bones.Items[i];
renderer.Circle(bone.WorldX, bone.WorldY, 3);
}
}
if (DrawClipping)
{
var slots = skeleton.Slots;
renderer.SetColor(clipColor);
for (int i = 0, n = slots.Count; i < n; i++)
{
var slot = slots.Items[i];
var attachment = slot.Attachment;
if (!(attachment is ClippingAttachment))
{
continue;
}
var clip = (ClippingAttachment)attachment;
var nn = clip.WorldVerticesLength;
var world = vertices = vertices.Length < nn ? new float[nn] : vertices;
clip.ComputeWorldVertices(slot, 0, nn, world, 0, 2);
ExposedList <float> clippingPolygon = new ExposedList <float>();
for (int ii = 0; ii < nn; ii += 2)
{
var x = world[ii];
var y = world[ii + 1];
var x2 = world[(ii + 2) % nn];
var y2 = world[(ii + 3) % nn];
renderer.Line(x, y, x2, y2);
clippingPolygon.Add(x);
clippingPolygon.Add(y);
}
if (DrawClippingDecomposed)
{
SkeletonClipping.MakeClockwise(clippingPolygon);
var triangles = triangulator.Triangulate(clippingPolygon);
var clippingPolygons = triangulator.Decompose(clippingPolygon, triangles);
renderer.SetColor(clipDecomposedColor);
foreach (var polygon in clippingPolygons)
{
SkeletonClipping.MakeClockwise(polygon);
polygon.Add(polygon.Items[0]);
polygon.Add(polygon.Items[1]);
renderer.Polygon(polygon.Items, 0, polygon.Count >> 1);
}
}
}
}
}
private void ReadAnimation(String name, Stream input, SkeletonData skeletonData)
{
var timelines = new ExposedList <Timeline>();
float scale = Scale;
float duration = 0;
// Slot timelines.
for (int i = 0, n = ReadVarint(input, true); i < n; i++)
{
int slotIndex = ReadVarint(input, true);
for (int ii = 0, nn = ReadVarint(input, true); ii < nn; ii++)
{
int timelineType = input.ReadByte();
int frameCount = ReadVarint(input, true);
switch (timelineType)
{
case SLOT_ATTACHMENT: {
AttachmentTimeline timeline = new AttachmentTimeline(frameCount);
timeline.slotIndex = slotIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadString(input));
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[frameCount - 1]);
break;
}
case SLOT_COLOR: {
ColorTimeline timeline = new ColorTimeline(frameCount);
timeline.slotIndex = slotIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
float time = ReadFloat(input);
int color = ReadInt(input);
float r = ((color & 0xff000000) >> 24) / 255f;
float g = ((color & 0x00ff0000) >> 16) / 255f;
float b = ((color & 0x0000ff00) >> 8) / 255f;
float a = ((color & 0x000000ff)) / 255f;
timeline.SetFrame(frameIndex, time, r, g, b, a);
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(timeline.FrameCount - 1) * ColorTimeline.ENTRIES]);
break;
}
case SLOT_TWO_COLOR: {
TwoColorTimeline timeline = new TwoColorTimeline(frameCount);
timeline.slotIndex = slotIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
float time = ReadFloat(input);
int color = ReadInt(input);
float r = ((color & 0xff000000) >> 24) / 255f;
float g = ((color & 0x00ff0000) >> 16) / 255f;
float b = ((color & 0x0000ff00) >> 8) / 255f;
float a = ((color & 0x000000ff)) / 255f;
int color2 = ReadInt(input); // 0x00rrggbb
float r2 = ((color2 & 0x00ff0000) >> 16) / 255f;
float g2 = ((color2 & 0x0000ff00) >> 8) / 255f;
float b2 = ((color2 & 0x000000ff)) / 255f;
timeline.SetFrame(frameIndex, time, r, g, b, a, r2, g2, b2);
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(timeline.FrameCount - 1) * TwoColorTimeline.ENTRIES]);
break;
}
}
}
}
// Bone timelines.
for (int i = 0, n = ReadVarint(input, true); i < n; i++)
{
int boneIndex = ReadVarint(input, true);
for (int ii = 0, nn = ReadVarint(input, true); ii < nn; ii++)
{
int timelineType = input.ReadByte();
int frameCount = ReadVarint(input, true);
switch (timelineType)
{
case BONE_ROTATE: {
RotateTimeline timeline = new RotateTimeline(frameCount);
timeline.boneIndex = boneIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadFloat(input));
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(frameCount - 1) * RotateTimeline.ENTRIES]);
break;
}
case BONE_TRANSLATE:
case BONE_SCALE:
case BONE_SHEAR: {
TranslateTimeline timeline;
float timelineScale = 1;
if (timelineType == BONE_SCALE)
{
timeline = new ScaleTimeline(frameCount);
}
else if (timelineType == BONE_SHEAR)
{
timeline = new ShearTimeline(frameCount);
}
else
{
timeline = new TranslateTimeline(frameCount);
timelineScale = scale;
}
timeline.boneIndex = boneIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadFloat(input) * timelineScale, ReadFloat(input)
* timelineScale);
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(frameCount - 1) * TranslateTimeline.ENTRIES]);
break;
}
}
}
}
// IK timelines.
for (int i = 0, n = ReadVarint(input, true); i < n; i++)
{
int index = ReadVarint(input, true);
int frameCount = ReadVarint(input, true);
IkConstraintTimeline timeline = new IkConstraintTimeline(frameCount);
timeline.ikConstraintIndex = index;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadFloat(input), ReadSByte(input));
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(frameCount - 1) * IkConstraintTimeline.ENTRIES]);
}
// Transform constraint timelines.
for (int i = 0, n = ReadVarint(input, true); i < n; i++)
{
int index = ReadVarint(input, true);
int frameCount = ReadVarint(input, true);
TransformConstraintTimeline timeline = new TransformConstraintTimeline(frameCount);
timeline.transformConstraintIndex = index;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadFloat(input), ReadFloat(input), ReadFloat(input), ReadFloat(input));
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(frameCount - 1) * TransformConstraintTimeline.ENTRIES]);
}
// Path constraint timelines.
for (int i = 0, n = ReadVarint(input, true); i < n; i++)
{
int index = ReadVarint(input, true);
PathConstraintData data = skeletonData.pathConstraints.Items[index];
for (int ii = 0, nn = ReadVarint(input, true); ii < nn; ii++)
{
int timelineType = ReadSByte(input);
int frameCount = ReadVarint(input, true);
switch (timelineType)
{
case PATH_POSITION:
case PATH_SPACING: {
PathConstraintPositionTimeline timeline;
float timelineScale = 1;
if (timelineType == PATH_SPACING)
{
timeline = new PathConstraintSpacingTimeline(frameCount);
if (data.spacingMode == SpacingMode.Length || data.spacingMode == SpacingMode.Fixed)
{
timelineScale = scale;
}
}
else
{
timeline = new PathConstraintPositionTimeline(frameCount);
if (data.positionMode == PositionMode.Fixed)
{
timelineScale = scale;
}
}
timeline.pathConstraintIndex = index;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadFloat(input) * timelineScale);
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(frameCount - 1) * PathConstraintPositionTimeline.ENTRIES]);
break;
}
case PATH_MIX: {
PathConstraintMixTimeline timeline = new PathConstraintMixTimeline(frameCount);
timeline.pathConstraintIndex = index;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
timeline.SetFrame(frameIndex, ReadFloat(input), ReadFloat(input), ReadFloat(input));
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[(frameCount - 1) * PathConstraintMixTimeline.ENTRIES]);
break;
}
}
}
}
// Deform timelines.
for (int i = 0, n = ReadVarint(input, true); i < n; i++)
{
Skin skin = skeletonData.skins.Items[ReadVarint(input, true)];
for (int ii = 0, nn = ReadVarint(input, true); ii < nn; ii++)
{
int slotIndex = ReadVarint(input, true);
for (int iii = 0, nnn = ReadVarint(input, true); iii < nnn; iii++)
{
VertexAttachment attachment = (VertexAttachment)skin.GetAttachment(slotIndex, ReadString(input));
bool weighted = attachment.bones != null;
float[] vertices = attachment.vertices;
int deformLength = weighted ? vertices.Length / 3 * 2 : vertices.Length;
int frameCount = ReadVarint(input, true);
DeformTimeline timeline = new DeformTimeline(frameCount);
timeline.slotIndex = slotIndex;
timeline.attachment = attachment;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
{
float time = ReadFloat(input);
float[] deform;
int end = ReadVarint(input, true);
if (end == 0)
{
deform = weighted ? new float[deformLength] : vertices;
}
else
{
deform = new float[deformLength];
int start = ReadVarint(input, true);
end += start;
if (scale == 1)
{
for (int v = start; v < end; v++)
{
deform[v] = ReadFloat(input);
}
}
else
{
for (int v = start; v < end; v++)
{
deform[v] = ReadFloat(input) * scale;
}
}
if (!weighted)
{
for (int v = 0, vn = deform.Length; v < vn; v++)
{
deform[v] += vertices[v];
}
}
}
timeline.SetFrame(frameIndex, time, deform);
if (frameIndex < frameCount - 1)
{
ReadCurve(input, frameIndex, timeline);
}
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[frameCount - 1]);
}
}
}
// Draw order timeline.
int drawOrderCount = ReadVarint(input, true);
if (drawOrderCount > 0)
{
DrawOrderTimeline timeline = new DrawOrderTimeline(drawOrderCount);
int slotCount = skeletonData.slots.Count;
for (int i = 0; i < drawOrderCount; i++)
{
float time = ReadFloat(input);
int offsetCount = ReadVarint(input, true);
int[] drawOrder = new int[slotCount];
for (int ii = slotCount - 1; ii >= 0; ii--)
{
drawOrder[ii] = -1;
}
int[] unchanged = new int[slotCount - offsetCount];
int originalIndex = 0, unchangedIndex = 0;
for (int ii = 0; ii < offsetCount; ii++)
{
int slotIndex = ReadVarint(input, true);
// Collect unchanged items.
while (originalIndex != slotIndex)
{
unchanged[unchangedIndex++] = originalIndex++;
}
// Set changed items.
drawOrder[originalIndex + ReadVarint(input, true)] = originalIndex++;
}
// Collect remaining unchanged items.
while (originalIndex < slotCount)
{
unchanged[unchangedIndex++] = originalIndex++;
}
// Fill in unchanged items.
for (int ii = slotCount - 1; ii >= 0; ii--)
{
if (drawOrder[ii] == -1)
{
drawOrder[ii] = unchanged[--unchangedIndex];
}
}
timeline.SetFrame(i, time, drawOrder);
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[drawOrderCount - 1]);
}
// Event timeline.
int eventCount = ReadVarint(input, true);
if (eventCount > 0)
{
EventTimeline timeline = new EventTimeline(eventCount);
for (int i = 0; i < eventCount; i++)
{
float time = ReadFloat(input);
EventData eventData = skeletonData.events.Items[ReadVarint(input, true)];
Event e = new Event(time, eventData);
e.Int = ReadVarint(input, false);
e.Float = ReadFloat(input);
e.String = ReadBoolean(input) ? ReadString(input) : eventData.String;
timeline.SetFrame(i, e);
}
timelines.Add(timeline);
duration = Math.Max(duration, timeline.frames[eventCount - 1]);
}
timelines.TrimExcess();
skeletonData.animations.Add(new Animation(name, timelines, duration));
}
/** Clips the input triangle against the convex, clockwise clipping area. If the triangle lies entirely within the clipping
* area, false is returned. The clipping area must duplicate the first vertex at the end of the vertices list. */
internal bool Clip(float x1, float y1, float x2, float y2, float x3, float y3, ExposedList <float> clippingArea, ExposedList <float> output)
{
var originalOutput = output;
var clipped = false;
// Avoid copy at the end.
ExposedList <float> input = null;
if (clippingArea.Count % 4 >= 2)
{
input = output;
output = scratch;
}
else
{
input = scratch;
}
input.Clear();
input.Add(x1);
input.Add(y1);
input.Add(x2);
input.Add(y2);
input.Add(x3);
input.Add(y3);
input.Add(x1);
input.Add(y1);
output.Clear();
float[] clippingVertices = clippingArea.Items;
int clippingVerticesLast = clippingArea.Count - 4;
for (int i = 0; ; i += 2)
{
float edgeX = clippingVertices[i], edgeY = clippingVertices[i + 1];
float edgeX2 = clippingVertices[i + 2], edgeY2 = clippingVertices[i + 3];
float deltaX = edgeX - edgeX2, deltaY = edgeY - edgeY2;
float[] inputVertices = input.Items;
int inputVerticesLength = input.Count - 2, outputStart = output.Count;
for (int ii = 0; ii < inputVerticesLength; ii += 2)
{
float inputX = inputVertices[ii], inputY = inputVertices[ii + 1];
float inputX2 = inputVertices[ii + 2], inputY2 = inputVertices[ii + 3];
bool side2 = deltaX * (inputY2 - edgeY2) - deltaY * (inputX2 - edgeX2) > 0;
if (deltaX * (inputY - edgeY2) - deltaY * (inputX - edgeX2) > 0)
{
if (side2) // v1 inside, v2 inside
{
output.Add(inputX2);
output.Add(inputY2);
continue;
}
// v1 inside, v2 outside
float c0 = inputY2 - inputY, c2 = inputX2 - inputX;
float ua = (c2 * (edgeY - inputY) - c0 * (edgeX - inputX)) / (c0 * (edgeX2 - edgeX) - c2 * (edgeY2 - edgeY));
output.Add(edgeX + (edgeX2 - edgeX) * ua);
output.Add(edgeY + (edgeY2 - edgeY) * ua);
}
else if (side2) // v1 outside, v2 inside
{
float c0 = inputY2 - inputY, c2 = inputX2 - inputX;
float ua = (c2 * (edgeY - inputY) - c0 * (edgeX - inputX)) / (c0 * (edgeX2 - edgeX) - c2 * (edgeY2 - edgeY));
output.Add(edgeX + (edgeX2 - edgeX) * ua);
output.Add(edgeY + (edgeY2 - edgeY) * ua);
output.Add(inputX2);
output.Add(inputY2);
}
clipped = true;
}
if (outputStart == output.Count) // All edges outside.
{
originalOutput.Clear();
return(true);
}
output.Add(output.Items[0]);
output.Add(output.Items[1]);
if (i == clippingVerticesLast)
{
break;
}
var temp = output;
output = input;
output.Clear();
input = temp;
}
if (originalOutput != output)
{
originalOutput.Clear();
for (int i = 0, n = output.Count - 2; i < n; i++)
{
originalOutput.Add(output.Items[i]);
}
}
else
{
originalOutput.Resize(originalOutput.Count - 2);
}
return(clipped);
}