Move interact prompt label to HUD

[wjt]

Currently, when the player-character is moved near to something that can be interacted with, we show two indications:

1. Near the object, a verb or phrase, such as "Tap", "Talk", or "Talk to Oscár". In theory this label is meant to float above the target so that neither the player-character nor the target is obscured.
2. At the bottom of the screen, "Interact" appears along with the button to press.

I think it would be clearer if the verb were shown in the bottom bar, with a glow or arrow behind/above the target to highlight it. Something like this quick mockup:

interact-glow.webm

though I wonder if an arrow, exclamation mark, etc. floating above the object would be more practical to implement & look better.

This would also allow us to WONTFIX #725.

XP Summary (total 600)

Subdomain	Skill	XP
Game Design: Game Feel & UX	Problem Solving	75
Game Design: Game Feel & UX	Creativity & Design Thinking	150
Game Design: Game Feel & UX	Technical Literacy	75
Engineering: Gameplay & Systems Programming	Problem Solving	75
Engineering: Gameplay & Systems Programming	Creativity & Design Thinking	75
Engineering: Gameplay & Systems Programming	Technical Literacy	150

[wjt]

Before sinking too much time into implementation, I would suggest first making a mockup of the various options for how to indicate the target:

1. floating arrow pointing down
2. highlight behind
3. your idea here!

My theory is that adding a highlight/glow behind will be a very tedious change because one will need to make sure to get the stacking correct so that the glow appears above any props but below the NPC/rock sprite. A floating arrow may also more clearly indicate the target - and it may be possible to reuse the existing marker that interactable objects have for positioning the label (though this will need to be adjusted).

[manuq]

Before sinking too much time into implementation, I would suggest first making a mockup of the various options for how to indicate the target:

1. floating arrow pointing down
2. highlight behind
3. your idea here!

My theory is that adding a highlight/glow behind will be a very tedious change because one will need to make sure to get the stacking correct so that the glow appears above any props but below the NPC/rock sprite. A floating arrow may also more clearly indicate the target - and it may be possible to reuse the existing marker that interactable objects have for positioning the label (though this will need to be adjusted).

Yes and, indicator_down.png delivered by PixelFrog in #2116 could be used for it.

[wjt]

Good idea! Though I think we will ultimately want them to be different shapes so that one can clearly distinguish between hookable and interactable things.

For interactable things you could imagine having a semitransparent thing always above the entity, which becomes opaque and animated when that thing is the target.