/// <summary>
/// Zooms the camera in or out.
/// </summary>
/// <param name="zoomIn">Whether to zoom the camera in or out.</param>
public void ZoomCamera(bool zoomIn)
{
if (zoomIn)
{
// Keeps from zooming in too far.
if (zoom > 0.2f)
{
zoom -= zoom * 0.05f; // decreses the zoom by 10%
}
}
else
{
zoom += zoom * 0.05f; // increases the zoom by 10%
}
// Sets the camera position to the origin point, then zooms in/out and offsets the camera.
position -= offset;
position.Normalize();
position = position = Vector3.Multiply(position, zoom);
position += offset;
projection = Matrix.PerspectiveFovRH((float)(Math.PI / 4), width / height, zoom / 100.0f, float.MaxValue);
view = Matrix.LookAtRH(position, target, upVector);
// Updates the camera's position.
device.SetTransform(TransformType.View, view);
device.SetTransform(TransformType.Projection, projection);
}
/// <summary>
/// Sets up the camera's perspective and view.
/// </summary>
/// <param name="width">The width of the panel being used.</param>
/// <param name="height">The height of the panel being used.</param>
public void SetCamera(float width, float height)
{
this.width = width;
this.height = height;
projection = Matrix.PerspectiveFovRH((float)(Math.PI / 4), width / height, 2.0f, 100000000.0f);
view = Matrix.LookAtRH(position, target, upVector);
device.SetTransform(TransformType.Projection, projection);
device.SetTransform(TransformType.View, view);
}
/// <summary>
/// Zooms the camera to a set value.
/// </summary>
/// <param name="zoomValue"></param>
public void ZoomCamera(float zoomValue)
{
zoom = zoomValue;
// Sets the camera position to the camAngle(normalized) then zooms in/out and offsets the camera and target.
position.Normalize();
position = Vector3.Multiply(position, zoom);
position += offset;
target += offset;
projection = Matrix.PerspectiveFovRH((float)(Math.PI / 4), width / height, zoom / 100.0f, float.MaxValue);
view = Matrix.LookAtRH(position, target, upVector);
// Updates the camera's position.
device.SetTransform(TransformType.View, view);
device.SetTransform(TransformType.Projection, projection);
}