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A Simple XNA Camera
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using System; | |
using System.Collections.Generic; | |
using System.Linq; | |
using System.Text; | |
using Microsoft.Xna.Framework; | |
namespace XNAGists | |
{ | |
public class Camera | |
{ | |
#region Fields | |
private float aspectRatio; | |
protected Matrix projection; | |
protected Matrix view; | |
private Vector3 cameraPosition = new Vector3(0.0f, 0.0f, 15f); | |
private Vector3 cameraTarget = Vector3.Zero; | |
private Vector3 cameraUpVector = Vector3.Up; | |
#endregion | |
#region Properties | |
public Matrix Projection | |
{ | |
get { return this.projection; } | |
} | |
public Matrix View | |
{ | |
get { return this.view; } | |
} | |
#endregion | |
public SimpleCamera(float aspectRatio) | |
{ | |
Matrix.CreatePerspectiveFieldOfView( | |
MathHelper.PiOver4, | |
aspectRatio, | |
0.1f, | |
1000.0f, | |
out projection); | |
Matrix.CreateLookAt( | |
ref cameraPosition, | |
ref cameraTarget, | |
ref cameraUpVector, | |
out view); | |
} | |
public void CreateLookAt(Vector3 pos, Vector3 target, Vector3 upVector) { | |
this.cameraPosition = pos; | |
this.cameraTarget = target; | |
this.cameraUpVector = upVector; | |
Matrix.CreateLookAt( | |
ref cameraPosition, | |
ref cameraTarget, | |
ref cameraUpVector, | |
out view); | |
} | |
} | |
} |
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