////////////////////////////////////////////////////////////////
static void AppendBridgeMeshVertices(ref List <BridgeMeshVertex> inOutBridgeMeshVertices, ValidBridgePoint bridgePoint, bool isEvenPoint)
{
BridgeMeshVertex leftVertex = new BridgeMeshVertex();
BridgeMeshVertex rightVertex = new BridgeMeshVertex();
////////////////////////////////////////////////////////////////
// General
// Depending on if we are an even or uneven point, we need to invert our "right" to make sure it is also the bridges "right"
float facingFactor = isEvenPoint ? 1.0f : -1.0f;
////////////////////////////////////////////////////////////////
// Inner Position
leftVertex.InnerPositionWS = bridgePoint.PositionWS;
rightVertex.InnerPositionWS = bridgePoint.PositionWS;
////////////////////////////////////////////////////////////////
// Position
float halfBridgeWidth = BridgeOptions.WIDTH_WS / 2.0f;
leftVertex.PositionWS = bridgePoint.PositionWS + facingFactor * bridgePoint.RightTangentWS * halfBridgeWidth;
rightVertex.PositionWS = bridgePoint.PositionWS - facingFactor * bridgePoint.RightTangentWS * halfBridgeWidth;
////////////////////////////////////////////////////////////////
// Normal
leftVertex.NormalWS = Vector3.up; // TODO: Calculate this from the positions themselves to make it more accurate.
rightVertex.NormalWS = Vector3.up;
////////////////////////////////////////////////////////////////
// UV
// As the left and the right vertex might be differently far away from the previous points,
// we need to calculate the UVs per vertex and cannot use the UVs of the points.
float leftVertexV = bridgePoint.UV.x;
float rightVertexV = bridgePoint.UV.x;
if (inOutBridgeMeshVertices.Count >= 2)
{
BridgeMeshVertex prevVertexLeft = inOutBridgeMeshVertices[inOutBridgeMeshVertices.Count - 2];
BridgeMeshVertex prevVertexRight = inOutBridgeMeshVertices[inOutBridgeMeshVertices.Count - 1];
leftVertexV = prevVertexLeft.UV.y + Vector3.Distance(prevVertexLeft.PositionWS, leftVertex.PositionWS);
rightVertexV = prevVertexRight.UV.y + Vector3.Distance(prevVertexRight.PositionWS, rightVertex.PositionWS);
}
leftVertex.UV = new Vector2(0.0f, leftVertexV);
rightVertex.UV = new Vector2(1.0f, rightVertexV);
////////////////////////////////////////////////////////////////
inOutBridgeMeshVertices.Add(leftVertex);
inOutBridgeMeshVertices.Add(rightVertex);
}
public BridgeMesh(List <BridgeMeshVertex> vertices, List <int> indicies)
{
Indicies = indicies;
Positions = new List <Vector3>();
InnerPositions = new List <Vector3>();
Normals = new List <Vector3>();
UVs = new List <Vector2>();
for (int i = 0; i < vertices.Count; i++)
{
BridgeMeshVertex vertex = vertices[i];
Positions.Add(vertex.PositionWS);
InnerPositions.Add(vertex.InnerPositionWS);
Normals.Add(vertex.NormalWS);
UVs.Add(vertex.UV);
}
}
////////////////////////////////////////////////////////////////
public void Serialize(Serializer io)
{
io.Serialize("Indicies", ref Indicies);
////////////////////////////////////////////////////////////////
List <BridgeMeshVertex> vertices = new List <BridgeMeshVertex>();
if (io.GetState() == Serializer.State.Saving)
{
for (int i = 0; i < Positions.Count; i++)
{
vertices.Add(new BridgeMeshVertex(Positions[i], InnerPositions[i], Normals[i], UVs[i]));
}
}
io.Serialize("Vertices", ref vertices, false);
if (io.GetState() == Serializer.State.Loading)
{
Positions = new List <Vector3>();
InnerPositions = new List <Vector3>();
Normals = new List <Vector3>();
UVs = new List <Vector2>();
for (int i = 0; i < vertices.Count; i++)
{
BridgeMeshVertex vertex = vertices[i];
Positions.Add(vertex.PositionWS);
InnerPositions.Add(vertex.InnerPositionWS);
Normals.Add(vertex.NormalWS);
UVs.Add(vertex.UV);
}
}
}