Improve ghoul behaviour (rebase+fix)

[Hypernoot]

a fixed and rebased version of #2848

[Frostwithasideofsalt]

there seems to be a bug where the ghoul refuses to move until i pass below it at least once.

[Rusty-Box]

Looking pretty good so far. A few suggestions I have:

• Have Ghoul thrust more agressivly towards the player than just up at a set angle.
• If Tux is too far away, I think Ghoul just stop chasing him and simply hover in mid-air waiting.
• Ghouls stun time could be reduced a little bit.

[Frostwithasideofsalt]

well it seems my issue with the ghoul not moving is fixed lol

[Hypernoot]

Thanks for review!

* Have Ghoul thrust more agressivly towards the player than just up at a set angle.

Can you please elaborate on what that means in particular?

* If Tux is too far away, I think Ghoul just stop chasing him and simply hover in mid-air waiting.

That is already implemented but the default tracking range is quite large. You can set it to a lower value to actually see it. The default value can be reduced if needed.

* Ghouls stun time could be reduced a little bit.

The stunning time is now 5s. I can reduce it to maybe 3s.

[Rusty-Box]

Can you please elaborate on what that means in particular?

Currently, when the player is higher than Ghoul, Ghoul does simply push itself relatively straight upwards whlie slowly moving towards him. What I had in mind was closer to the Blooper from Mario, in that instead of going straight up, Ghoul pushes itself towards Tux, so more diagonal-up. They only move with every thrust, standing still before charging up another thrust to move closer to Tux again. Like a jellyfish.

That is already implemented but the default tracking range is quite large. You can set it to a lower value to actually see it. The default value can be reduced if needed.

Nice, I'll have to try out a few values then to find a good default.

The stunning time is now 5s. I can reduce it to maybe 3s.

Try 4. Should be enough.

[Hypernoot]

As you may have noticed, when the ghoul is bellow its target position, he jumps upwards by a defined step. When Tux is above ghoul but not much higher, then a single jump may suffice for the ghoul to reach Tux. If Tux is higher than that, then the ghoul actually makes multiple consecutive jumps to reach Tux. Shall I make the jumps shorter to make it more apparent?