www.pudn.com > IntroductionTo3DGameEngineDesign.rar > Object3D.cs

using System; 
using System.Collections; 
using System.Diagnostics; 
using System.Drawing; 
using Microsoft.DirectX; 
using Microsoft.DirectX.Direct3D; 
 
namespace GameEngine 
{ 
	/// 
 
	/// delegate used for specifying the update method for the object  
	/// 
 
	public delegate void ObjectUpdate( Object3D Obj, float DeltaT ); 
 
	/// 
 
	/// Summary description for Object3D. 
	/// 
 
	abstract public class Object3D : IDisposable, IRenderable, ICullable, ICollidable, IDynamic 
	{ 
 
	#region Attributes 
		protected string     m_sName; 
		protected Vector3    m_vPosition; 
		protected Vector3    m_vVelocity; 
		protected Attitude   m_vOrientation; 
		protected bool       m_bVisible = true; // visible by default 
		protected bool       m_bCulled; 
		protected bool		 m_bHasMoved = false; 
		protected Object3D   m_Parent; 
		protected SortedList m_Children = new SortedList(); 
		protected float      m_fRadius;  // bounding circle 
		protected float      m_fRange;  // distance from view point 
		protected Matrix     m_Matrix; 
		protected ObjectUpdate m_UpdateMethod = null; 
 
		public ArrayList   m_Quads = new ArrayList(); 
 
		public string  Name     { get { return m_sName; } } 
		public Vector3 Position { get { return m_vPosition; }   set { m_vPosition = value; m_bHasMoved = true;} } 
		public Vector3 Velocity { get { return m_vVelocity; }   set { m_vVelocity = value; } } 
		public float VelocityX { get { return m_vVelocity.X; }   set { m_vVelocity.X = value; m_bHasMoved = true;} } 
		public float VelocityY { get { return m_vVelocity.Y; }   set { m_vVelocity.Y = value; m_bHasMoved = true;} } 
		public float VelocityZ { get { return m_vVelocity.Z; }   set { m_vVelocity.Z = value; m_bHasMoved = true;} } 
		public Attitude Attitude { get { return m_vOrientation; }   set { m_vOrientation = value; } } 
		public virtual float   North    { get { return m_vPosition.Z; } set { m_vPosition.Z = value; m_bHasMoved = true;} } 
		public virtual float   East     { get { return m_vPosition.X; } set { m_vPosition.X = value; m_bHasMoved = true;} } 
		public virtual float   Height   { get { return m_vPosition.Y; } set { m_vPosition.Y = value; m_bHasMoved = true;} } 
		public virtual float   Roll     { get { return m_vOrientation.Roll; } set { m_vOrientation.Roll = value; } } 
		public virtual float   Pitch    { get { return m_vOrientation.Pitch; } set { m_vOrientation.Pitch = value; } } 
		public virtual float   Heading  { get { return m_vOrientation.Heading; } set { m_vOrientation.Heading = value; } } 
		public float   Range    { get { return m_fRange; }      set { m_fRange = value; } } 
		public float   Radius   { get { return m_fRadius; }     set { m_fRadius = value; } } 
		public Matrix  WorldMatrix   { get { return m_Matrix; } } 
		public bool Visible { get { return m_bVisible; } set { m_bVisible = value; } } 
	#endregion 
 
		public Object3D( string sName ) 
		{ 
			m_sName = sName; 
			m_bCulled = false; 
			m_bVisible = true; 
			m_Matrix = Matrix.Identity; 
		} 
 
		public void SetUpdateMethod( ObjectUpdate method ) 
		{ 
			m_UpdateMethod = method; 
		} 
 
		public virtual bool InRect( Rectangle rect ) 
		{ 
			// check to see if the object is within this rectangle 
			return false; 
		} 
 
		public virtual bool Collide( Object3D Other ) { return false; } 
 
		public virtual void Render() { } 
 
		public virtual void Dispose() 
		{ 
			Debug.WriteLine("Disposing of " + Name + " in Object3D"); 
		} 
		public virtual void Render( Camera cam ){} 
		public virtual void Update( float DeltaT ){} 
		public virtual bool Culled { set { m_bCulled = value; } } 
		public virtual bool IsCulled { get { return m_bCulled; } } 
		public Vector3 CenterOfMass { get { return m_vPosition; }} 
		public float   BoundingRadius { get { return m_fRadius; } } 
		public virtual bool CollideSphere ( Object3D other ){ return false; } 
		public virtual bool CollidePolygon ( Vector3 Point1, Vector3 Point2, Vector3 Point3 ){ return false; } 
 
		public void AddChild( Object3D child ) 
		{ 
			m_Children.Add(child.Name, child); 
			child.m_Parent = this; 
		} 
 
		public void RemoveChild( string name ) 
		{ 
			Object3D obj = (Object3D)m_Children.GetByIndex(m_Children.IndexOfKey(name)); 
			obj.m_Parent = null; 
			m_Children.Remove(name); 
		} 
 
		public Object3D GetChild( string name ) 
		{ 
			try  
			{ 
				return (Object3D)m_Children.GetByIndex(m_Children.IndexOfKey(name)); 
			} 
			catch 
			{ 
				return null; 
			} 
		} 
	} 
}