/// <summary>
/// Initializes a new instance of the <see cref="SceneGraph" /> class.
/// </summary>
public SceneGraph()
{
this.root = new SceneNode();
this.collisionSystem = new CollisionSystemSAP();
this.world = new World(this.collisionSystem);
this.world.Gravity = new JVector(0f, -12f, 0f);
this.directionalLights = new List<DirectionalLight>();
this.spotLights = new List<SpotLight>();
this.pointLights = new List<PointLight>();
this.renderableObjects = new List<RenderableObject>();
this.camera = new Camera(this.engine);
}
/// <summary>
/// Parses a <see cref="SpotLight" /> from the given XML node.
/// </summary>
/// <param name="node">The XML node.</param>
/// <returns>A <see cref="SceneNode" /> instance.</returns>
public SceneNode ParseSpotLight(XElement node)
{
SpotLight spotLight = new SpotLight(
this.ParseVector3(node.Element("position")),
Quaternion.Identity,
Vector3.One,
this.ParseVector3(node.Element("direction")),
this.ParseColor(node.Element("color")),
float.Parse(node.Attribute("intensity").Value),
float.Parse(node.Element("clip").Attribute("near").Value),
float.Parse(node.Element("clip").Attribute("far").Value),
float.Parse(node.Element("projection").Attribute("field-of-view").Value),
float.Parse(node.Attribute("bias").Value),
bool.Parse(node.Attribute("cast-shadows").Value),
int.Parse(node.Attribute("resolution").Value));
SceneNode sceneNode = new SceneNode();
sceneNode.AttachEntity(spotLight);
return sceneNode;
}
/// <summary>
/// Parses a <see cref="DirectionalLight" /> from the given XML node.
/// </summary>
/// <param name="node">The XML node.</param>
/// <returns>A <see cref="SceneNode" /> instance.</returns>
public SceneNode ParseDirectionalLight(XElement node)
{
var directionalLight = new DirectionalLight(
Vector3.Zero,
Quaternion.Identity,
Vector3.One,
this.ParseColor(node.Element("color")),
float.Parse(node.Attribute("intensity").Value),
this.ParseVector3(node.Element("direction")));
var sceneNode = new SceneNode();
sceneNode.AttachEntity(directionalLight);
return sceneNode;
}
/// <summary>
/// Parses a <see cref="PhysicsObject" /> from the given XML node.
/// </summary>
/// <param name="node">The XML node.</param>
/// <returns>A <see cref="SceneNode" /> instance.</returns>
private SceneNode ParsePhysicsObject(XElement node)
{
Type collisionShapeType;
switch (node.Element("physics").Element("collider").Attribute("type").Value)
{
case "box":
collisionShapeType = typeof(BoxShape);
break;
case "sphere":
collisionShapeType = typeof(SphereShape);
break;
case "mesh":
collisionShapeType = typeof(TriangleMeshShape);
break;
default:
throw new Exception("Unknown collision shape");
}
bool isStatic = true;
string physicsType = node.Element("physics").Attribute("type").Value;
if (physicsType == "rigid_body")
{
isStatic = false;
}
var newObject = new PhysicsObject(
node.Element("mesh").Attribute("file").Value,
this.ParseVector3(node.Element("position")),
this.ParseQuaternion(node.Element("rotation")),
this.ParseVector3(node.Element("scale")),
collisionShapeType,
isStatic);
var sceneNode = new SceneNode();
sceneNode.AttachEntity(newObject);
return sceneNode;
}
/// <summary>
/// Parses a <see cref="RenderableObject" /> from the given XML node.
/// </summary>
/// <param name="node">The XML node.</param>
/// <returns>A <see cref="SceneNode" /> instance.</returns>
public SceneNode ParseRenderableObject(XElement node)
{
var renderableObject = new RenderableObject(
this.ParseVector3(node.Element("position")),
this.ParseQuaternion(node.Element("rotation")),
this.ParseVector3(node.Element("scale")),
node.Element("mesh").Attribute("file").Value);
var sceneNode = new SceneNode();
sceneNode.AttachEntity(renderableObject);
return sceneNode;
}
/// <summary>
/// Parses a <see cref="PointLight" /> from the given XML node.
/// </summary>
/// <param name="node">The XML node.</param>
/// <returns>A <see cref="SceneNode" /> instance.</returns>
public SceneNode ParsePointLight(XElement node)
{
var pointLight = new PointLight(
this.ParseVector3(node.Element("position")),
Quaternion.Identity,
Vector3.One,
float.Parse(node.Attribute("radius").Value),
this.ParseColor(node.Element("color")),
float.Parse(node.Attribute("intensity").Value),
bool.Parse(node.Attribute("cast-shadows").Value),
int.Parse(node.Attribute("resolution").Value),
float.Parse(node.Attribute("bias").Value));
var sceneNode = new SceneNode();
sceneNode.AttachEntity(pointLight);
return sceneNode;
}
/// <summary>
/// Attaches the scene node as a child of the root node.
/// </summary>
/// <param name="node">The node.</param>
public void AttachSceneNodeToRoot(SceneNode node)
{
this.root.Children.Add(node);
foreach (var entity in node.Entities)
{
}
}
public void Initialize(Engine engine)
{
this.engine = engine;
this.CreatePlayer();
var r = new Random();
for (int i = 0; i < 100; i++)
{
var node = new SceneNode();
var box = new PhysicsObject(
"Cube",
new Vector3(r.Next(20) - 10, r.Next(500) + 200, r.Next(20) - 10),
Quaternion.Identity,
Vector3.One,
typeof(BoxShape),
false);
node.AttachEntity(box);
this.AttachSceneNodeToRoot(node);
}
this.sceneGraph.Initialize(this.engine);
}
public void AttachSceneNodeToRoot(SceneNode node)
{
this.sceneGraph.AttachSceneNodeToRoot(node);
}
private void CreatePlayer()
{
SceneNode sceneNode = new SceneNode();
Player player = new Player(new Vector3(0, 3, 0), Quaternion.Identity, Vector3.One, 0.75f, 1.75f, 8.0f);
sceneNode.AttachEntity(player);
this.AttachSceneNodeToRoot(sceneNode);
}