public void UpdateVertices()
{
float uvSegment = 0f;
float uvLen = 0f;
//NOTE: ONLY USE THE DUMMY NODE'S UV CHANGE
Vector2 LowerLeftUV = dummyNode.LowerLeftUV;
Vector2 UVDimensions = dummyNode.UVDimensions;
// change to lower left coord?
UVDimensions.y = -UVDimensions.y;
LowerLeftUV.y = 1f - LowerLeftUV.y;
float totalUVLen = Owner.RopeUVLen;
if (Owner.RopeFixUVLen)
{
float t = 0;
for (int i = 0; i < NodeList.Count - 1; i++)
{
t += (NodeList[i + 1].GetWorldPos() - NodeList[i].GetWorldPos()).magnitude;
}
totalUVLen = t;
}
for (int i = NodeList.Count - 1; i >= 0; i--)
{
EffectNode node = NodeList[i];
EffectNode prevNode = i + 1 < NodeList.Count ? NodeList[i + 1] : null;
EffectNode nextNode = i - 1 >= 0 ? NodeList[i - 1] : null;
Vector3 chainTangent;
if (nextNode == null)
{
//tail node
chainTangent = node.GetWorldPos() - prevNode.GetWorldPos();
}
else if (prevNode == null)
{
//head node
chainTangent = nextNode.GetWorldPos() - node.GetWorldPos();
}
else
{
chainTangent = nextNode.GetWorldPos() - prevNode.GetWorldPos();
}
Vector3 eyePos = Owner.MyCamera.transform.position;
Vector3 vP1ToEye = eyePos - node.GetWorldPos();
Vector3 vPerpendicular = Vector3.Cross(chainTangent, vP1ToEye);
vPerpendicular.Normalize();
vPerpendicular *= (Owner.RopeWidth * 0.5f * node.Scale.x);
//Debug.DrawRay(node.GetWorldPos(), vPerpendicular, Color.red, 1f);
Vector3 pos0 = node.GetWorldPos() - vPerpendicular;
Vector3 pos1 = node.GetWorldPos() + vPerpendicular;
VertexPool pool = Vertexsegment.Pool;
//if (Owner.StretchType == 0)
uvSegment = (uvLen / totalUVLen) * Mathf.Abs(UVDimensions.y);
// else
// uvSegment = (uvLen / totalUVLen) * Mathf.Abs(UVDimensions.x);
Vector2 uvCoord = Vector2.zero;
int baseIdx = Vertexsegment.VertStart + node.Index * 2;
pool.Vertices[baseIdx] = pos0;
pool.Colors[baseIdx] = node.Color;
//if (Owner.StretchType == 0)
// {
uvCoord.x = LowerLeftUV.x + UVDimensions.x;
uvCoord.y = LowerLeftUV.y - uvSegment;
// }
// else
// {
// uvCoord.x = LowerLeftUV.x + uvSegment;
// uvCoord.y = LowerLeftUV.y;
// }
pool.UVs[baseIdx] = uvCoord;
//pos1
pool.Vertices[baseIdx + 1] = pos1;
pool.Colors[baseIdx + 1] = node.Color;
//if (Owner.StretchType == 0)
// {
uvCoord.x = LowerLeftUV.x;
uvCoord.y = LowerLeftUV.y - uvSegment;
// }
//else
//{
// uvCoord.x = LowerLeftUV.x + uvSegment;
// uvCoord.y = LowerLeftUV.y - Mathf.Abs(UVDimensions.y);
// }
pool.UVs[baseIdx + 1] = uvCoord;
if (nextNode != null)
{
uvLen += (nextNode.GetWorldPos() - node.GetWorldPos()).magnitude;
}
else
{
uvLen += (node.GetWorldPos() - prevNode.GetWorldPos()).magnitude;
}
}
Vertexsegment.Pool.UVChanged = true;
Vertexsegment.Pool.VertChanged = true;
Vertexsegment.Pool.ColorChanged = true;
}
