private void CreateVertex(Vector2 position, int edgeIndex)
{
position = MathUtility.ClampPositionToRect(position, frame);
cacheUndo.BeginUndoOperation(TextContent.createVertex);
BoneWeight boneWeight = new BoneWeight();
Vector3Int indices;
Vector3 barycentricCoords;
if (m_SpriteMeshDataController.FindTriangle(position, out indices, out barycentricCoords))
{
EditableBoneWeight bw1 = m_SpriteMeshData.GetWeight(indices.x);
EditableBoneWeight bw2 = m_SpriteMeshData.GetWeight(indices.y);
EditableBoneWeight bw3 = m_SpriteMeshData.GetWeight(indices.z);
EditableBoneWeight result = new EditableBoneWeight();
foreach (BoneWeightChannel channel in bw1)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * barycentricCoords.x;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
foreach (BoneWeightChannel channel in bw2)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * barycentricCoords.y;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
foreach (BoneWeightChannel channel in bw3)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * barycentricCoords.z;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
result.UnifyChannelsWithSameBoneIndex();
result.FilterChannels(0f);
result.Clamp(4, true);
boneWeight = result.ToBoneWeight(true);
}
else if (edgeIndex != -1)
{
Edge edge = m_SpriteMeshData.edges[edgeIndex];
Vector2 pos1 = m_SpriteMeshData.GetPosition(edge.index1);
Vector2 pos2 = m_SpriteMeshData.GetPosition(edge.index2);
Vector2 dir1 = (position - pos1);
Vector2 dir2 = (pos2 - pos1);
float t = Vector2.Dot(dir1, dir2.normalized) / dir2.magnitude;
t = Mathf.Clamp01(t);
BoneWeight bw1 = m_SpriteMeshData.GetWeight(edge.index1).ToBoneWeight(true);
BoneWeight bw2 = m_SpriteMeshData.GetWeight(edge.index2).ToBoneWeight(true);
boneWeight = EditableBoneWeightUtility.Lerp(bw1, bw2, t);
}
m_SpriteMeshDataController.CreateVertex(position, edgeIndex);
m_SpriteMeshData.GetWeight(m_SpriteMeshData.vertexCount - 1).SetFromBoneWeight(boneWeight);
Triangulate();
}
private Vector2 ClampToFrame(Vector2 position)
{
return(MathUtility.ClampPositionToRect(position, frame));
}
private SpriteCache TrySelect(Vector2 mousePosition)
{
m_Sprites.Remove(selectedSprite);
if (selectedSprite != null)
{
m_Sprites.Add(selectedSprite);
}
var currentSelectedIndex = m_Sprites.FindIndex(x => x == selectedSprite) + 1;
var notVisiblePart = skinningCache.hasCharacter && skinningCache.mode == SkinningMode.Character
? skinningCache.character.parts.Where(x => !x.isVisible).Select(x => x.sprite) : new SpriteCache[0];
for (int index = 0; index < m_Sprites.Count; ++index)
{
var sprite = m_Sprites[(currentSelectedIndex + index) % m_Sprites.Count];
var meshPreview = sprite.GetMeshPreview();
if (notVisiblePart.Contains(sprite))
{
continue;
}
Debug.Assert(meshPreview != null);
var spritePosition = sprite.GetLocalToWorldMatrixFromMode().MultiplyPoint3x4(Vector3.zero);
var ray = new Ray((Vector3)mousePosition - spritePosition + Vector3.back, Vector3.forward);
var bounds = meshPreview.mesh.bounds;
if (sprite.GetMesh().indices.Count >= 3)
{
if (bounds.IntersectRay(ray))
{
var mesh = sprite.GetMesh();
Debug.Assert(mesh != null);
var indices = mesh.indices;
for (var i = 0; i < indices.Count; i += 3)
{
var p1 = meshPreview.vertices[indices[i]];
var p2 = meshPreview.vertices[indices[i + 1]];
var p3 = meshPreview.vertices[indices[i + 2]];
if (MathUtility.Intersect(p1, p2, p3, ray))
{
return(sprite);
}
}
}
}
else
{
if (meshPreview.defaultMesh.bounds.IntersectRay(ray))
{
return(sprite);
}
}
}
return(null);
}