I haven't posted in this sub-forum in quite some time, but I finally found something worth discussing I believe:

I'm looking for fresh ideas when it comes to easy feedback implementations.

I'm talking about feedbacks that can result from in-game interactions, but do not imply any inherent gameplay and only serve to add clear and concise feedback for the player.

For example:

- Camera shake: Generally related to an explosion or when the player is hurt (regardless of whether this is in first person)

- "Sprite" shake: may occur when an onscreen enemy is hurt but not killed, or to indicate that the enemy is impervious to this form of attack

- Bounce: May indicate that something has become active or require user attention.

- Fade to/from white or red: Also used in unit damage feedback under some circumstances.

- Rapid flip: may sometimes be used in lieu of a low quality attack animation (alternating left/right) in a static environment

etc.

Counter-examples:

- Knockback: This is a simple attack feedback, but it has gameplay ramifications (adding distance between the attacker and defender to increase delay)

Anyone has other examples of simple feedbacks and what they're used for in (primarily 2D) games?

2 more basic examples I've seen.

1) Flicker: Think of when megaman gets hit. In addition to his reelback sprite image and a hit-sound, he flickers (rapidly switches from fully visible to fully transparent). It's another visual queue to indicate you're in hit-stun.

2) Button glow: An alternative to the bounce animation you listed. The button doesn't move, but instead has a glow around it indicating it's ready. (this may be tougher to implement depending on how well you want to exemplify the glow effect).

Here's an over-the-top flashy example:

Use an after-image effect to show high speed movement!

I actually used that in an arcade spaceship prototype after watching a Castlevania: SOTN speedrun and it does an amazing job at showcasing rapid movement without actually making movement any faster.

Great additions, Thanks!