/// <summary>
/// Put down a tree at the intersection.
/// </summary>
public override bool NewFan(
Road.Intersection isect,
Road.Section first,
Road.Section second,
List <Road.RenderObj> fans)
{
FBXModel model = EndModel;
if (model != null)
{
RoadMultiRenderObj multiRo = new RoadMultiRenderObj();
Vector2 center = isect.Node.Position2d;
float area = width * width * (float)Math.PI;
int count = (int)Math.Ceiling(area * density);
for (int i = 0; i < count; ++i)
{
double rndAng = BokuGame.bokuGame.rnd.NextDouble() * Math.PI * 2.0;
float rndOut = (float)(BokuGame.bokuGame.rnd.NextDouble() * 2.0 - 1.0);
float cos = (float)Math.Cos(rndAng);
float sin = (float)Math.Sin(rndAng);
Vector2 rndPos = center;
rndPos.X += cos * rndOut;
rndPos.Y += sin * rndOut;
float height = Terrain.GetTerrainHeightFlat(rndPos);
Matrix localToWorld = Matrix.CreateTranslation(rndPos.X, rndPos.Y, height);
RoadFBXRenderObj ro = new RoadFBXRenderObj();
ro.Model = model;
ro.Animator = EndAnim;
ro.LocalToWorld = localToWorld;
multiRo.RenderObjList.Add(ro);
}
fans.Add(multiRo);
return(count > 0);
}
return(false);
}
/// <summary>
/// Spread flora over new section of road.
/// </summary>
/// <param name="section"></param>
public override void NewSection(Road.Section section)
{
RoadMultiRenderObj multiRo = null;
FBXModel model = Model;
if (model != null)
{
multiRo = new RoadMultiRenderObj();
Vector2 start = section.Edge.Node0.Position2d;
Vector2 end = section.Edge.Node1.Position2d;
Vector2 axis = end - start;
Vector2 norm = new Vector2(-axis.Y, axis.X);
norm = Vector2.Normalize(norm) * width;
float area = axis.Length() * width * 2.0f;
int count = (int)Math.Ceiling(area * density);
for (int i = 0; i < count; ++i)
{
float rndTo = (float)BokuGame.bokuGame.rnd.NextDouble();
float rndOut = (float)(BokuGame.bokuGame.rnd.NextDouble() * 2.0 - 1.0);
Vector2 rndPos = start + rndTo * axis + rndOut * norm;
float height = Terrain.GetTerrainHeightFlat(rndPos);
height += section.Edge.Node0.Height + rndTo * (section.Edge.Node1.Height - section.Edge.Node0.Height);
Matrix localToWorld = Matrix.CreateTranslation(rndPos.X, rndPos.Y, height);
RandomizeAngle(ref localToWorld);
RoadFBXRenderObj ro = new RoadFBXRenderObj();
ro.Model = model;
ro.LocalToWorld = localToWorld;
ro.Animator = Anim;
multiRo.RenderObjList.Add(ro);
}
}
section.RenderObj = multiRo;
}