koobas.hobune.stream
How do I have a 2D sprite fade in and out? (C#)
Hello, I have an enemy that has a sprite attached to it. I would like to fade this enemy in for a period of time and fade out for a period of time. I am having trouble creating a good method to do this. I already have been able to alter the alpha of the sprite, I'm just having trouble with the fade in and out part.
Thank you!!!
Best Answer
I don't have your code, but here's a template by which you can do everything yourself:
SpriteRenderer yourSpriteRenderer;
private IEnumerator FadeIn()
{
float alphaVal = yourSpriteRenderer.color.a;
Color tmp = yourSpriteRenderer.color;
while (yourSpriteRenderer.color.a > 0)
{
alphaVal -= 0.01f;
tmp.a = alphaVal;
yourSpriteRenderer.color = tmp;
yield return new WaitForSeconds(0.05f); // update interval
}
}
private IEnumerator FadeOut()
{
float alphaVal = yourSpriteRenderer.color.a;
Color tmp = yourSpriteRenderer.color;
while (yourSpriteRenderer.color.a < 1)
{
alphaVal += 0.01f;
tmp.a = alphaVal;
yourSpriteRenderer.color = tmp;
yield return new WaitForSeconds(0.05f); // update interval
}
}
You can run it like this:
StartCoroutine(FadeIn());
