public Camera(Stage aScene, CameraEnum cameraType)
{
name = "Whole stage";
scene = aScene;
cameraCase = cameraType;
terrainCenter = scene.TerrainSize / 2;
updateViewMatrix();
}
/// <summary>
/// Create a path
/// </summary>
/// <param name="theStage"> "world's stage" </param>
/// <param name="apath"> collection of nodes in path</param>
/// <param name="aPathType"> SINGLE, REVERSE, or LOOP path traversal</param>
public Path(Stage theStage, List<NavNode> aPath, PathType aPathType)
: base(theStage)
{
node = aPath;
nextNode = 0;
pathType = aPathType;
stage = theStage;
done = false;
}
// Constructor
public Cloud(Stage stage, string label, string meshFile, int nClouds)
: base(stage, label, meshFile)
{
random = new Random();
// add nClouds random cloud instances
for (int i = 0; i < nClouds; i++) {
int x = (128 + random.Next(256)) * stage.Spacing; // 128 .. 384
int z = (128 + random.Next(256)) * stage.Spacing;
addObject(
new Vector3(x , stage.surfaceHeight(x, z) + 4000, z ),
new Vector3(0, 1, 0), (random.Next(5)) * 0.01f,
new Vector3(4 + random.Next(3), random.Next(4) + 1, 3 + random.Next(2)));
}
}
public Treasure(Stage theStage, string label, string meshFile, Vector3 pos, Vector3 rotationAxis, float rotation)
: base(theStage, label, meshFile)
{
translation = pos;
axis = rotationAxis;
radians = rotation;
tagged = false;
isCollidable = false;
int spacing = stage.Terrain.Spacing;
Terrain terrain = stage.Terrain;
addObject(new Vector3(translation.X, 100+terrain.surfaceHeight((int)translation.X, (int)translation.Z), translation.Z),
axis, radians, new Vector3(100, 100, 100));
}
/// <summary>
/// Create an Agent.
/// All Agents are collidable and have a single instance Object3D named agentObject.
/// Set StepSize, create first, follow and above cameras.
/// Set first as agentCamera
/// <param name="stage"></param>
/// <param name="label"></param>
/// <param name="position"></param>
/// <param name="orientAxis"></param>
/// <param name="radians"></param>
/// <param name="meshFile"></param>
/// </summary>
public Agent(Stage stage, string label, Vector3 position, Vector3 orientAxis,
float radians, string meshFile)
: base(stage, label, meshFile)
{
// create an Object3D for this agent
agentObject = addObject(position, orientAxis, radians);
first = new Camera(stage, agentObject, Camera.CameraEnum.FirstCamera);
follow = new Camera(stage, agentObject, Camera.CameraEnum.FollowCamera);
above = new Camera(stage, agentObject, Camera.CameraEnum.AboveCamera);
stage.addCamera(first);
stage.addCamera(follow);
stage.addCamera(above);
agentCamera = first;
}
private int step, stepSize; // values for stepping
#endregion Fields
#region Constructors
// constructors
/// <summary>
/// Object that places and orients itself.
/// </summary>
/// <param name="theStage"> the stage containing object </param>
/// <param name="aModel">how the object looks</param>
/// <param name="label"> name of object </param>
/// <param name="position"> position in stage </param>
/// <param name="orientAxis"> axis to orient on </param>
/// <param name="radians"> orientation rotation </param>
public Object3D(Stage theStage, Model3D aModel, string label, Vector3 position,
Vector3 orientAxis, float radians)
{
scales = Vector3.One; // no scaling of model
stage = theStage;
model = aModel;
name = label;
step = 1;
stepSize = 10;
pitch = yaw = roll = 0.0f;
orientation = Matrix.Identity;
orientation *= Matrix.CreateFromAxisAngle(orientAxis, radians);
orientation *= Matrix.CreateTranslation(position);
scaleObjectBoundingSphere();
}
public NavGraph(Stage theStage)
{
graph = new Dictionary<String, NavNode>();
stage = theStage;
open = new List<NavNode>();
closed = new List<NavNode>();
path = new List<NavNode>();
astar = new List<NavNode>();
//stage = theStage;
//x = anX;
//z = aZ;
//name = string.Format("{0}::{1}", x, z);
//nodeType = NavGraphNodeType.VERTEX;
//node = new NavNode(new Vector3(x * spacing, stage.Terrain.surfaceHeight(x, z), z * spacing), NavNode.NavNodeEnum.WAYPOINT);
}
private int snapDistance = 20; // this should be a function of step and stepSize
#endregion Fields
#region Constructors
/// <summary>
/// Create a NPC.
/// AGXNASK distribution has npAgent move following a Path.
/// </summary>
/// <param name="theStage"> the world</param>
/// <param name="label"> name of </param>
/// <param name="pos"> initial position </param>
/// <param name="orientAxis"> initial rotation axis</param>
/// <param name="radians"> initial rotation</param>
/// <param name="meshFile"> Direct X *.x Model in Contents directory </param>
public NPAgent(Stage theStage, string label, Vector3 pos, Vector3 orientAxis,
float radians, string meshFile)
: base(theStage, label, pos, orientAxis, radians, meshFile)
{
// change names for on-screen display of current camera
first.Name = "npFirst";
follow.Name = "npFollow";
above.Name = "npAbove";
// path is built to work on specific terrain, make from int[x,z] array pathNode
path = new Path(stage, pathNode, Path.PathType.LOOP); // continuous search path
stage.Components.Add(path);
nextGoal = path.NextNode; // get first path goal
agentObject.turnToFace(nextGoal.Translation); // orient towards the first path goal
// set snapDistance to be a little larger than step * stepSize
snapDistance = (int) (1.5 * (agentObject.Step * agentObject.StepSize));
}
public Player(Stage theStage, string label, Vector3 pos, Vector3 orientAxis,
float radians, string meshFile, List<Treasure> t, List<Treasure> m)
: base(theStage, label, pos, orientAxis, radians, meshFile)
{
// change names for on-screen display of current camera
first.Name = "First";
follow.Name = "Follow";
above.Name = "Above";
IsCollidable = true; // players test collision with Collidable set.
stage.Collidable.Add(agentObject); // player's agentObject can be collided with by others.
rotate = 0;
angle = 0.01f;
initialOrientation = agentObject.Orientation;
treasure = t;
marked = m;
treasureCount = 0;
}
public Model3D(Stage theStage, string label, string fileOfModel)
: base(theStage)
{
name = label;
stage =theStage;
instance = new List<Object3D>();
model = stage.Content.Load<Model>(fileOfModel);
// compute the translation to the model's bounding sphere
// center and radius;
float minX, minY, minZ, maxX, maxY, maxZ;
minX = minY = minZ = Int32.MaxValue;
maxX = maxY = maxZ = Int32.MinValue;
for (int i = 0; i < model.Meshes.Count; i++) {
// See if this mesh extends the bounding sphere.
BoundingSphere aBoundingSphere = model.Meshes[i].BoundingSphere;
boundingSphereRadius = aBoundingSphere.Radius;
// minimum value
if ((aBoundingSphere.Center.X - aBoundingSphere.Radius) < minX)
minX = aBoundingSphere.Center.X - aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Y - aBoundingSphere.Radius) < minY)
minY = aBoundingSphere.Center.Y - aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Z - aBoundingSphere.Radius) < minZ)
minZ = aBoundingSphere.Center.Z - aBoundingSphere.Radius;
// maximum value
if ((aBoundingSphere.Center.X + aBoundingSphere.Radius) > maxX)
maxX = aBoundingSphere.Center.X + aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Y + aBoundingSphere.Radius) > maxY)
maxY = aBoundingSphere.Center.Y + aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Z + aBoundingSphere.Radius) > maxZ)
maxZ = aBoundingSphere.Center.Z + aBoundingSphere.Radius;
}
// get the diameter of model's bounding sphere
// radius temporarily holds the largest diameter
if ((maxX - minX) > boundingSphereRadius) boundingSphereRadius = maxX - minX;
// Since a bounding cylinder is used for collision height values not needed
// if ((maxY - minY) > boundingSphereRadius) boundingSphereRadius = maxY - minY;
if ((maxZ - minZ) > boundingSphereRadius) boundingSphereRadius = maxZ - minZ;
// set boundingSphereRadius
boundingSphereRadius = boundingSphereRadius * 1.05f / 2.0f; // set the radius from largest diameter
// set the center of model's bounding sphere
boundingSphereCenter =
// new Vector3(minX + boundingSphereRadius, minY + boundingSphereRadius, minZ + boundingSphereRadius);
new Vector3(minX + boundingSphereRadius, minY + boundingSphereRadius, minZ + boundingSphereRadius);
// need to scale boundingSphereRadius for each object instances in Object3D
}
/// <summary>
/// Create a path from array
/// </summary>
/// <param name="theStage"> "world's stage" </param>
/// <param name="apath"> collection of nodes in path</param>
/// <param name="pathNode"> int[x,z] array of WayPoint positions for path</param>
/// <param name="aPathType"> SINGLE, REVERSE, or LOOP path traversal</param>
public Path(Stage theStage, int[,] pathNode, PathType aPathType)
: base(theStage)
{
nextNode = 0;
pathType = aPathType;
stage = theStage;
done = false;
int spacing = stage.Spacing;
int x, z;
// make a simple path, show how to set the type of the NavNode outside of construction.
node = new List<NavNode>();
for(int i = 0; i < pathNode.Length/2; i++) {
x = pathNode[i, 0];
z = pathNode[i, 1];
node.Add(new NavNode(new Vector3(x * spacing, stage.Terrain.surfaceHeight(x, z), z * spacing),
NavNode.NavNodeEnum.WAYPOINT) );
}
}
/// <summary>
/// Construct a pack with an Object3D leader
/// </summary>
/// <param name="theStage"> the scene </param>
/// <param name="label"> name of pack</param>
/// <param name="meshFile"> model of a pack instance</param>
/// <param name="xPos, zPos"> approximate position of the pack </param>
/// <param name="aLeader"> alpha dog can be used for flock center and alignment </param>
public Pack(Stage theStage, string label, string meshFile, int nDogs, int xPos, int zPos, Object3D theLeader)
: base(theStage, label, meshFile)
{
isCollidable = true;
random = new Random();
leader = theLeader;
int spacing = stage.Spacing;
// initial vertex offset of dogs around (xPos, zPos)
int [,] position = { {0, 0}, {7, -4}, {-5, -2}, {-7, 4}, {5, 2} , {3,9}, {12, 0}, {5, -10}};
for( int i = 0; i < position.GetLength(0); i++) {
int x = xPos + position[i, 0];
int z = zPos + position[i, 1];
float scale = (float)(0.5 + random.NextDouble());
addObject( new Vector3(x * spacing, stage.surfaceHeight(x, z), z * spacing),
new Vector3(0, 1, 0), 0.0f,
new Vector3(scale, scale, scale));
}
}
public Terrain(Stage theStage, string label, string terrainDataFile)
: base(theStage, label)
{
constructorInit(); // common constructor initialization code, base call sets "stage"
// read vertex data from "terrain.dat" file
System.IO.TextReader file = System.IO.File.OpenText(terrainDataFile);
file.ReadLine(); // skip the first description line x y z r g b
int i = 0; // index for vertex[]
string line;
string[] token;
for (int z = 0; z < height; z++)
for (int x = 0; x < width; x++) {
line = file.ReadLine();
token = line.Split(' ');
terrainHeight[x, z] = int.Parse(token[1]) * multiplier; // Y
vertex[i] = new VertexPositionColor(
new Vector3( int.Parse(token[0]) * spacing, terrainHeight[x,z], int.Parse(token[2]) * spacing), // position
new Color(int.Parse(token[3]), int.Parse(token[4]), int.Parse(token[5])) ); // material
i++;
}
file.Close();
makeIndicesSetData();
}
public IndexVertexBuffers(Stage theStage, string label)
: base(theStage)
{
stage = theStage;
name = label;
}
/// <summary>
/// Constructor is a "pass-through" for arguments to Model3D's constructor
/// </summary>
/// <param name="theStage"></param>
/// <param name="label"></param>
/// <param name="meshFile"></param>
public MovableModel3D(Stage theStage, string label, string meshFile)
: base(theStage, label, meshFile)
{
}
/// <summary>
/// Make a Terrain from 2 png texture files.
/// Must have __XNA4__ capabilities to read from png files.
/// </summary>
/// <param name="theStage"></param>
/// <param name="label"></param>
/// <param name="heightFile"></param>
/// <param name="colorFile"></param>
public Terrain(Stage theStage, string label, string heightFile, string colorFile)
: base(theStage, label)
{
Texture2D heightTexture, colorTexture;
Microsoft.Xna.Framework.Color[] heightMap, colorMap;
constructorInit(); // common constructor initialization code, base call sets "stage"
heightTexture = stage.Content.Load<Texture2D>(heightFile);
heightMap =
new Microsoft.Xna.Framework.Color[width * height];
heightTexture.GetData<Microsoft.Xna.Framework.Color>(heightMap);
// create colorMap values from colorTexture
colorTexture = stage.Content.Load<Texture2D>(colorFile);
colorMap =
new Microsoft.Xna.Framework.Color[width * height];
colorTexture.GetData<Microsoft.Xna.Framework.Color>(colorMap);
// create vertices for terrain
Vector4 vector4;
int vertexHeight;
int i = 0;
for (int z = 0; z < height; z++)
for (int x = 0; x < width; x++) {
vector4 = heightMap[i].ToVector4(); // convert packed Rgba32 values to floats
vertexHeight = (int) (vector4.X * 255); // scale vertexHeight 0..255
vertexHeight *= multiplier; // multiply height
terrainHeight[x, z] = vertexHeight; // save height for navigation
vertex[i] = new VertexPositionColor(
new Vector3(x * spacing, vertexHeight, z * spacing),
new Color(colorMap[i].ToVector4()));
i++;
}
// free up unneeded maps
colorMap = null;
heightMap = null;
makeIndicesSetData();
}
public Camera(Stage aScene, Object3D anAgentObject, CameraEnum cameraType)
{
scene = aScene;
agent = anAgentObject;
cameraCase = cameraType;
}
public Wall(Stage theStage, string label, string meshFile)
: base(theStage, label, meshFile)
{
initWall(450, 460); // origin of wall on terrain
}
public Wall(Stage theStage, string label, string meshFile, int xOffset, int zOffset)
: base(theStage, label, meshFile)
{
initWall(xOffset, zOffset);
}
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
using (Stage stage = new Stage()) {
stage.Run();
}
}
/// <summary>
/// Create a path from XZ nodes defined in a pathFile.
/// The file must be accessible from the executable environment.
/// </summary>
/// <param name="theStage"> "world's stage" </param>
/// <param name="aPathType"> SINGLE, REVERSE, or LOOP path traversal</param>
/// <param name="pathFile"> text file, each line a node of X Z values, separated by a single space </x></param>
public Path(Stage theStage, PathType aPathType, string pathFile)
: base(theStage)
{
node = new List<NavNode>();
stage = theStage;
nextNode = 0;
pathType = aPathType;
done = false;
// read file for WayPoint vertex (x,z) positions
int spacing = stage.Spacing;
int x, z;
string line;
string[] tokens;
using (System.IO.StreamReader fileIn = System.IO.File.OpenText(pathFile)) {
line = fileIn.ReadLine();
do {
tokens = line.Split(new char[] {}); // use default separators
x = Int32.Parse(tokens[0]);
z = Int32.Parse(tokens[1]);
node.Add(new NavNode(new Vector3(x * spacing, stage.Terrain.surfaceHeight(x, z), z * spacing),
NavNode.NavNodeEnum.PATH));
line = fileIn.ReadLine();
} while (line != null);
}
}
