private Vector2 UpdateSlomo(GameTime gameTime, Vector2 arenaCenter, Vector2 position)
{
// camera position
if (slomoState != SlomoState.Disabled)
{
// mouse follow
var mousePos = MouseToWorld(new Vector2(Mouse.GetState().X, Mouse.GetState().Y));
var mouseOffset = (arenaCenter - mousePos) * mouseFollowAmount;
position -= mouseOffset;
// zoom
slomoZoomTween.Update((float)gameTime.ElapsedGameTime.TotalMilliseconds);
if (slomoZoomTween.Enabled)
{
AniZoom = slomoZoomTween.CurrentValue;
}
slomoCameraPosTween.Update((float)gameTime.ElapsedGameTime.TotalMilliseconds);
if (slomoCameraPosTween.Enabled)
{
var factor = slomoCameraPosTween.CurrentValue;
var distance = position - arenaCenter;
position = arenaCenter + (distance * factor);
}
if (slomoState == SlomoState.Disabling && !slomoZoomTween.Enabled)
{
slomoState = SlomoState.Disabled;
}
}
return(position);
}
public void SlomoZoomOut()
{
slomoState = SlomoState.Disabling;
float duration = slomoZoomTween.Enabled ?
slomoZoomTween.Elapsed : SlomoZoomAniDuration;
slomoZoomTween.Animate(AniZoom, NormalZoom, duration);
slomoCameraPosTween.Animate(1, 0, duration);
}
public void SlomoZoomIn()
{
slomoState = SlomoState.Enabled;
float duration = SlomoZoomAniDuration;
if (slomoZoomTween.Enabled)
{
duration -= slomoZoomTween.Elapsed;
}
slomoZoomTween.Animate(AniZoom, SlomoZoom, duration);
slomoCameraPosTween.Animate(0, 1, duration);
}