protected override void process(Entity entity)
{
Position focusPosition = (Position)_PositionMapper.get(entity);
CameraFocus focus = (CameraFocus)_CameraFocusMapper.get(entity);
ViewPort cameraView = (ViewPort)_ViewportMapper.get(_Camera);
Vector2 cPos = cameraView.getOrigin();
Vector2 center = cPos + cameraView.getDimensions() / 2;
Vector2 fPos = focusPosition.Pos;
float dist, radius;
dist = Vector2.Distance(fPos, center);
radius = focus.getFocusRadius();
if (dist > radius)
{
Vector2 vec = Vector2.Subtract(fPos, center);
vec.Normalize();
cPos += Vector2.Multiply(vec, dist - radius);
cameraView.setOrigin(cPos);
}
}