/// <summary>
/// Create the right hand corner
/// </summary>
/// <param name="ja">The array that holder all the points</param>
/// <param name="leadingStright">The leading section on the corner</param>
/// <param name="sections">the number of sections with-in a curve</param>
private CornerDrawHolder CreateRightCorner(JunctionArray ja, float leadingStright, int sections)
{
SmotherCornerContext scc = new SmotherCornerContext();
scc.Main.Vector = ja.RightSide[1];
scc.Main.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbRightOutter);
scc.Leading.Vector = ja.RightSide[2];
scc.Leading.UV = new Vector2(UVDATA.JunctionLength, UVDATA.CurbRightOutter);
scc.Ending.Vector = ja.RightSide[4];
scc.Ending.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbRightInner);
scc.Far.Vector = ja.RightSide[3];
scc.Far.UV = new Vector2(UVDATA.JunctionLength, UVDATA.CurbRightInner);
List <VectorUvs> pavementTriList = CreateFanfrom(scc, leadingStright, sections);
// Draw the road
SmotherCornerContext sccRoad = new SmotherCornerContext();
Vector3 kerb = new Vector3(0, RoadConstructorHelper.CrossSectionDetails.CurbLipHeightValue, 0);
sccRoad.Main.Vector = ja.RightSide[1] - kerb;
sccRoad.Main.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbRightOutter);
sccRoad.Leading.Vector = ja.RightSide[5];
sccRoad.Leading.UV = new Vector2(UVDATA.JunctionLengthKerb, UVDATA.CurbRightOutter);
sccRoad.Ending.Vector = ja.RightSide[7];
sccRoad.Ending.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbRightLipInner);
sccRoad.Far.Vector = ja.RightSide[6];
sccRoad.Far.UV = new Vector2(UVDATA.JunctionLengthKerb, UVDATA.CurbRightLipInner);
List <VectorUvs> roadTriList = CreateFanfrom(sccRoad, leadingStright, sections);
// swap from the inner curb to the outer curb for the road
roadTriList[0] = sccRoad.Far;
CornerDrawHolder cdh = new CornerDrawHolder(pavementTriList, roadTriList);
cdh.DrawPavementImpl = DrawFanTriListBackWards;
cdh.DrawRoadImpl = DrawFanTriList;
if (RoadConstructorHelper.CrossSectionDetails.HasCurbDataValue)
{
// Draw the kurb if any
cdh.SetKerb(pavementTriList, roadTriList, 1);
cdh.DrawKerbImpl = DrawStripBackward;
}
return(cdh);
}
/// <summary>
/// Creates the drawer for the left corner
/// </summary>
/// <param name="oi">The array of outter and inner cross sections</param>
/// <param name="leadingStright">The leading section on the corner</param>
/// <param name="sections">the number of sections with-in a curve</param>
/// <param name="mainRoad">The index of the main road</param>
/// <param name="rightRoad">The index of the road to the right</param>
/// <returns>The drawer object to draw the left corner</returns>
private CornerDrawHolder CreateInnerCorner(OutterInner oi, float leadingStright, int sections, int mainRoad, int rightRoad)
{
SmotherCornerContext scc = new SmotherCornerContext();
scc.Main.Vector = oi.Outter[mainRoad].CurbRightEnd;
scc.Main.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbLeftOutter);
scc.Leading.Vector = oi.Outter[mainRoad].CurbRightLip;
scc.Leading.UV = new Vector2(UVDATA.JunctionLength, UVDATA.CurbLeftOutter);
scc.Ending.Vector = oi.Outter[rightRoad].CurbLeftLip;
scc.Ending.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbLeftInner);
scc.Far.Vector = oi.Inner[mainRoad].CurbRightLip;
scc.Far.UV = new Vector2(UVDATA.JunctionLength, UVDATA.CurbLeftInner);
List <VectorUvs> pavementTriList = CreateFanfrom(scc, leadingStright, sections);
// Draw the road
SmotherCornerContext sccRoad = new SmotherCornerContext();
Vector3 kerb = new Vector3(0, RoadConstructorHelper.CrossSectionDetails.CurbLipHeightValue, 0);
sccRoad.Main.Vector = oi.Outter[mainRoad].CurbRightEnd - kerb;
sccRoad.Main.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbLeftOutter);
sccRoad.Leading.Vector = oi.Outter[mainRoad].Right;
sccRoad.Leading.UV = new Vector2(UVDATA.JunctionLengthKerb, UVDATA.CurbLeftOutter);
sccRoad.Ending.Vector = oi.Outter[rightRoad].Left;
sccRoad.Ending.UV = new Vector2(UVDATA.JunctionStart, UVDATA.CurbLeftLipInner);
sccRoad.Far.Vector = oi.Inner[mainRoad].Right;
sccRoad.Far.UV = new Vector2(UVDATA.JunctionLengthKerb, UVDATA.CurbLeftLipInner);
List <VectorUvs> roadTriList = CreateFanfrom(sccRoad, leadingStright, sections);
// swap from the inner curb to the outer curb for the road
roadTriList[0] = sccRoad.Far;
CornerDrawHolder cdh = new CornerDrawHolder(pavementTriList, roadTriList);
cdh.DrawPavementImpl = DrawFanTriList;
cdh.DrawRoadImpl = DrawFanTriListBackWards;
if (RoadConstructorHelper.CrossSectionDetails.HasCurbDataValue)
{
cdh.SetKerb(pavementTriList, roadTriList, 1);
cdh.DrawKerbImpl = DrawStrip;
}
return(cdh);
}
/// <summary>
/// Creates a fan list from a smotherCornerContext
/// </summary>
/// <param name="scc">The smother corner context</param>
/// <param name="startingPercent">The starting point along the first lines</param>
/// <param name="sections">The number of sections to use</param>
/// <returns>The list of tris, as a fan list</returns>
protected List <VectorUvs> CreateFanfrom(SmotherCornerContext scc, float startingPercent, int sections)
{
List <VectorUvs> l = new List <VectorUvs>();
// TODO: When starting percent is 0 - are we adding the first poly twice?
l.Add(scc.Main);
l.Add(scc.Leading);
VectorUvs leftStartUV = VectorUvs.Lerp(scc.Leading, scc.Far, startingPercent);
VectorUvs rightStartUV = VectorUvs.Lerp(scc.Ending, scc.Far, startingPercent);
l.Add(leftStartUV);
float sectionsGap = 1.0f / sections;
for (int i = 0; i < sections + 1; i++)
{
l.Add(GetBezierCurvePoint(leftStartUV, rightStartUV, scc.Far, (i * sectionsGap)));
}
l.Add(scc.Ending);
return(l);
}