axiosengine/axios/Engine/Gleed2D/Camera.cs

83 lines
1.8 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
namespace Axios.Engine.Gleed2D
{
public class Camera
{
Vector2 position;
public Vector2 Position
{
get
{
return position;
}
set
{
position = value;
updatematrix();
}
}
float rotation;
public float Rotation
{
get
{
return rotation;
}
set
{
rotation = value;
updatematrix();
}
}
float scale;
public float Scale
{
get
{
return scale;
}
set
{
scale = value;
updatematrix();
}
}
public Matrix matrix;
Vector2 viewport; //width and height of the viewport
public Camera(float width, float height)
{
position = Vector2.Zero;
rotation = 0;
scale = 1.0f;
viewport = new Vector2(width, height);
updatematrix();
}
void updatematrix()
{
matrix = Matrix.CreateTranslation(-position.X, -position.Y, 0.0f) *
Matrix.CreateRotationZ(rotation) *
Matrix.CreateScale(scale) *
Matrix.CreateTranslation(viewport.X / 2, viewport.Y / 2, 0.0f);
}
public void updateviewport(float width, float height)
{
viewport.X = width;
viewport.Y = height;
updatematrix();
}
}
}