public void LayoutEdge(Vector2 startPosition, Vector2 endPosition, int index)
{
int controlID = guiWrapper.GetControlID(m_EdgeHashCode, FocusType.Passive);
float distance = guiWrapper.DistanceToSegment(startPosition, endPosition);
guiWrapper.LayoutControl(controlID, distance);
if (guiWrapper.eventType == EventType.Layout)
{
if (guiWrapper.IsControlNearest(controlID))
{
m_HoveredEdge = index;
m_HoveredEdgeControlID = controlID;
}
distance = HandleUtility.DistancePointToLineSegment(MeshModuleUtility.ClampPositionToRect(mouseWorldPosition, frame), startPosition, endPosition);
if (distance < m_MinDistance)
{
m_MinDistance = distance;
m_ClosestEdgeIndex = index;
}
}
}
private Vector2 ClampToFrame(Vector2 position)
{
return(MeshModuleUtility.ClampPositionToRect(position, spriteMeshData.frame));
}
private void CreateVertex(Vector2 position, int edgeIndex)
{
position = MeshModuleUtility.ClampPositionToRect(position, spriteMeshData.frame);
undoObject.RegisterCompleteObjectUndo("Create Vertex");
BoneWeight boneWeight = new BoneWeight();
Vector3Int indices;
Vector3 barycentricCoords;
if (spriteMeshData.FindTriangle(position, out indices, out barycentricCoords))
{
EditableBoneWeight bw1 = spriteMeshData.vertices[indices.x].editableBoneWeight;
EditableBoneWeight bw2 = spriteMeshData.vertices[indices.y].editableBoneWeight;
EditableBoneWeight bw3 = spriteMeshData.vertices[indices.z].editableBoneWeight;
EditableBoneWeight result = new EditableBoneWeight();
foreach (BoneWeightChannel channel in bw1)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= barycentricCoords.x;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
foreach (BoneWeightChannel channel in bw2)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= barycentricCoords.y;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
foreach (BoneWeightChannel channel in bw3)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= barycentricCoords.z;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
result.UnifyChannelsWithSameBoneIndex();
result.FilterChannels(0f);
result.ClampChannels(4, true);
boneWeight = result.ToBoneWeight(true);
}
else if (edgeIndex != -1)
{
Edge edge = spriteMeshData.edges[edgeIndex];
Vector2 pos1 = spriteMeshData.vertices[edge.index1].position;
Vector2 pos2 = spriteMeshData.vertices[edge.index2].position;
Vector2 dir1 = (position - pos1);
Vector2 dir2 = (pos2 - pos1);
float t = Vector2.Dot(dir1, dir2.normalized) / dir2.magnitude;
t = Mathf.Clamp01(t);
BoneWeight bw1 = spriteMeshData.vertices[edge.index1].editableBoneWeight.ToBoneWeight(true);
BoneWeight bw2 = spriteMeshData.vertices[edge.index2].editableBoneWeight.ToBoneWeight(true);
boneWeight = EditableBoneWeightUtility.Lerp(bw1, bw2, t);
}
spriteMeshData.CreateVertex(position, edgeIndex);
spriteMeshData.vertices[spriteMeshData.vertices.Count - 1].editableBoneWeight.SetFromBoneWeight(boneWeight);
spriteMeshData.Triangulate(triangulator);
}
