protected override void LoadContent()
{
device = graphics.GraphicsDevice;
basicEffect = new BasicEffect(device, null);
cCross = new CoordCross(device);
myModel = XNAUtils.LoadModelWithBoundingSphere(ref modelTransforms, "Ship", Content);
}
private VertexPositionNormalTexture[] GenerateTrackVertices(List <Vector3> trackPoints)
{
float halfTrackWidth = 0.2f;
List <VertexPositionNormalTexture> verticesList = new List <VertexPositionNormalTexture>();
List <Vector3> supportList = new List <Vector3>();
float distance = 0;
float textureLenght = 0.5f;
Vector3 currentNormal = Vector3.Up;
for (int i = 1; i < trackPoints.Count - 1; i++)
{
Vector3 next2 = trackPoints[i + 1] - trackPoints[i];
next2.Normalize();
Vector3 previous = trackPoints[i] - trackPoints[i - 1];
previous.Normalize();
Vector3 split = Vector3.Cross(next2, previous);
Vector3 mySide = Vector3.Cross(next2, split);
currentNormal = currentNormal + 0.2f * Vector3.Up + mySide * 2.0f;
supportList.Add(new Vector3(trackPoints[i].X, -0.5f, trackPoints[i].Z));
supportList.Add(trackPoints[i]);
Vector3 side = Vector3.Cross(currentNormal, next2);
side.Normalize();
currentNormal = Vector3.Cross(next2, side);
Vector3 outerPoint = trackPoints[i] + side * halfTrackWidth;
Vector3 innerPoint = trackPoints[i] - side * halfTrackWidth;
distance += next2.Length();
VertexPositionNormalTexture vertex;
vertex = new VertexPositionNormalTexture(innerPoint, currentNormal, new Vector2(0, distance / textureLenght));
verticesList.Add(vertex);
vertex = new VertexPositionNormalTexture(outerPoint, currentNormal, new Vector2(1, distance / textureLenght));
verticesList.Add(vertex);
}
verticesList.Add(verticesList[0]);
verticesList.Add(verticesList[1]);
supportList.Add(Vector3.Zero);
supportList.Add(Vector3.Zero);
supportVertices = XNAUtils.VerticesFromVector3List(supportList, Color.Yellow);
VertexPositionNormalTexture[] trackVertices = verticesList.ToArray();
return(trackVertices);
}
public static Model LoadModelWithBoundingSphere(ref Matrix[] modelTransforms, string asset, ContentManager content)
{
Model newModel = content.Load <Model>(asset);
modelTransforms = new Matrix[newModel.Bones.Count];
newModel.CopyAbsoluteBoneTransformsTo(modelTransforms);
BoundingSphere completeBoundingSphere = new BoundingSphere();
foreach (ModelMesh mesh in newModel.Meshes)
{
BoundingSphere origMeshSphere = mesh.BoundingSphere;
BoundingSphere transMeshSphere = XNAUtils.TransformBoundingSphere(origMeshSphere, modelTransforms[mesh.ParentBone.Index]);
completeBoundingSphere = BoundingSphere.CreateMerged(completeBoundingSphere, transMeshSphere);
}
newModel.Tag = completeBoundingSphere;
return(newModel);
}
public void Draw(Matrix worldMatrix, Matrix viewMatrix, Matrix projectionMatrix, BoundingFrustum cameraFrustum)
{
BoundingBox transformedBBox = XNAUtils.TransformBoundingBox(nodeBoundingBox, worldMatrix);
ContainmentType cameraNodeContainment = cameraFrustum.Contains(transformedBBox);
if (cameraNodeContainment != ContainmentType.Disjoint)
{
if (isEndNode)
{
DrawCurrentNode(worldMatrix, viewMatrix, projectionMatrix);
}
else
{
nodeUL.Draw(worldMatrix, viewMatrix, projectionMatrix, cameraFrustum);
nodeUR.Draw(worldMatrix, viewMatrix, projectionMatrix, cameraFrustum);
nodeLL.Draw(worldMatrix, viewMatrix, projectionMatrix, cameraFrustum);
nodeLR.Draw(worldMatrix, viewMatrix, projectionMatrix, cameraFrustum);
}
}
}
protected override void Initialize()
{
fpsCam = new QuakeCamera(GraphicsDevice.Viewport, new Vector3(5, 2, 15), 0, 0);
List <Vector3> points = new List <Vector3>();
points.Add(new Vector3(0, 0, 0));
points.Add(new Vector3(2, 2, 0));
points.Add(new Vector3(4, 0, 0));
points.Add(new Vector3(6, 6, 0));
points.Add(new Vector3(8, 2, 0));
points.Add(new Vector3(10, 0, 0));
List <Vector3> crList1 = InterpolateCR(points[0], points[1], points[2], points[3]);
List <Vector3> crList2 = InterpolateCR(points[1], points[2], points[3], points[4]);
List <Vector3> crList3 = InterpolateCR(points[2], points[3], points[4], points[5]);
straightVertices = XNAUtils.VerticesFromVector3List(points, Color.Red);
crVertices1 = XNAUtils.VerticesFromVector3List(crList1, Color.Green);
crVertices2 = XNAUtils.VerticesFromVector3List(crList2, Color.Blue);
crVertices3 = XNAUtils.VerticesFromVector3List(crList3, Color.Yellow);
base.Initialize();
}
