private IEnumerator DoComponentAlphaTransitions()
{
const float fadeOutThreshold = 0.89f;
const float fadeDuration = 0.189f;
int numberOfAxes = Enum.GetValues(typeof(SceneGizmoComponent)).Length;
Vector3[] gizmoAxes = new Vector3[] { _gizmoTransform.right, -_gizmoTransform.right, _gizmoTransform.up, -_gizmoTransform.up, _gizmoTransform.forward, -_gizmoTransform.forward };
while (true)
{
Vector3 cameraLook = _gizmoCameraTransform.forward;
for (int axisIndex = 0; axisIndex < numberOfAxes; ++axisIndex)
{
if ((SceneGizmoComponent)axisIndex == SceneGizmoComponent.Cube)
{
_componentAlphas[axisIndex] = 1.0f;
continue;
}
GizmoCompAlphaFadeInfo fadeInfo = _componentAlphaFadeInfo[axisIndex];
float absDot = Mathf.Abs(Vector3.Dot(cameraLook, gizmoAxes[axisIndex - 1]));
if (!fadeInfo.IsActive)
{
if (absDot >= fadeOutThreshold)
{
fadeInfo.ChangeTransition(GizmoCompTransition.FadeOut, _componentAlphas[axisIndex]);
}
else
{
fadeInfo.ChangeTransition(GizmoCompTransition.FadeIn, _componentAlphas[axisIndex]);
}
}
if (fadeInfo.IsActive)
{
_componentAlphas[axisIndex] = Mathf.Lerp(fadeInfo.SrcAlpha, fadeInfo.DestAlpha, fadeInfo.ElapsedTime / fadeDuration);
fadeInfo.ElapsedTime += Time.deltaTime;
if (fadeInfo.ElapsedTime >= fadeDuration)
{
_componentAlphas[axisIndex] = fadeInfo.DestAlpha;
fadeInfo.Stop();
}
}
}
yield return(null);
}
}
private void Start()
{
CreateSceneGizmoCamera();
_axisLabelTextures[0] = Resources.Load("Textures/XAxisLabel") as Texture2D;
_axisLabelTextures[1] = Resources.Load("Textures/YAxisLabel") as Texture2D;
_axisLabelTextures[2] = Resources.Load("Textures/ZAxisLabel") as Texture2D;
int axisCount = Enum.GetValues(typeof(SceneGizmoComponent)).Length;
for (int axisIndex = 0; axisIndex < axisCount; ++axisIndex)
{
_componentAlphaFadeInfo[axisIndex] = new GizmoCompAlphaFadeInfo();
_componentAlphas[axisIndex] = 1.0f;
}
UpdateGizmoCamera();
StartCoroutine(DoComponentAlphaTransitions());
}
