private void RemoveEdge(Edge edge)
{
cacheUndo.BeginUndoOperation(TextContent.removeEdge);
m_SpriteMeshDataController.RemoveEdge(edge);
Triangulate();
}
private EdgeIntersectionResult CalculateEdgeIntersection(int vertexIndex, int hoveredVertexIndex, int hoveredEdgeIndex, Vector2 targetPosition)
{
Debug.Assert(vertexIndex >= 0);
EdgeIntersectionResult edgeIntersection = new EdgeIntersectionResult();
edgeIntersection.startVertexIndex = vertexIndex;
edgeIntersection.endVertexIndex = hoveredVertexIndex;
edgeIntersection.endPosition = targetPosition;
edgeIntersection.intersectEdgeIndex = -1;
Vector2 startPoint = m_SpriteMeshData.GetPosition(edgeIntersection.startVertexIndex);
bool intersectsEdge = false;
int lastIntersectingEdgeIndex = -1;
do
{
lastIntersectingEdgeIndex = edgeIntersection.intersectEdgeIndex;
if (intersectsEdge)
{
Vector2 dir = edgeIntersection.endPosition - startPoint;
edgeIntersection.endPosition += dir.normalized * 10f;
}
intersectsEdge = SegmentIntersectsEdge(startPoint, edgeIntersection.endPosition, vertexIndex, ref edgeIntersection.endPosition, out edgeIntersection.intersectEdgeIndex);
//if we are hovering a vertex and intersect an edge indexing it we forget about the intersection
if (intersectsEdge && m_SpriteMeshData.edges[edgeIntersection.intersectEdgeIndex].Contains(edgeIntersection.endVertexIndex))
{
edgeIntersection.intersectEdgeIndex = -1;
intersectsEdge = false;
edgeIntersection.endPosition = m_SpriteMeshData.GetPosition(edgeIntersection.endVertexIndex);
}
if (intersectsEdge)
{
edgeIntersection.endVertexIndex = -1;
Edge intersectingEdge = m_SpriteMeshData.edges[edgeIntersection.intersectEdgeIndex];
Vector2 newPointScreen = spriteMeshView.WorldToScreen(edgeIntersection.endPosition);
Vector2 edgeV1 = spriteMeshView.WorldToScreen(m_SpriteMeshData.GetPosition(intersectingEdge.index1));
Vector2 edgeV2 = spriteMeshView.WorldToScreen(m_SpriteMeshData.GetPosition(intersectingEdge.index2));
if ((newPointScreen - edgeV1).magnitude <= kSnapDistance)
{
edgeIntersection.endVertexIndex = intersectingEdge.index1;
}
else if ((newPointScreen - edgeV2).magnitude <= kSnapDistance)
{
edgeIntersection.endVertexIndex = intersectingEdge.index2;
}
if (edgeIntersection.endVertexIndex != -1)
{
edgeIntersection.intersectEdgeIndex = -1;
intersectsEdge = false;
edgeIntersection.endPosition = m_SpriteMeshData.GetPosition(edgeIntersection.endVertexIndex);
}
}
}while (intersectsEdge && lastIntersectingEdgeIndex != edgeIntersection.intersectEdgeIndex);
edgeIntersection.intersectEdgeIndex = intersectsEdge ? edgeIntersection.intersectEdgeIndex : hoveredEdgeIndex;
if (edgeIntersection.endVertexIndex != -1 && !intersectsEdge)
{
edgeIntersection.endPosition = m_SpriteMeshData.GetPosition(edgeIntersection.endVertexIndex);
}
return(edgeIntersection);
}
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();
}