[CR] Falling into deep water deals less damage

[int-ua]

Summary

SUMMARY: Balance "Falling into deep water deals much less damage"

Purpose of change

Falling into deep water should not be as damaging as falling into shallow water.

Describe the solution

Taking into account if landing tile is deep water and character swimming skill.

Testing

Falling from 1 through 5, 10 and 20 levels with 0, 10 and 20 swimming skill.

[Night-Pryanik]

Falling from a big height in the water almost equals falling on the concrete floor, especially if one is falling flat.

[Xanderga]

A compromise would be a linear scaling of damage taken based on your swimming skill. Consider it diving where 0 skill is belly flopping (full damage), and 10 skill is Olympic athlete (0 damage)

[int-ua]

Falling from a big height in the water almost equals falling on the concrete floor, especially if one is falling flat.

Well, yes. I just didn't think falling more than 2 z-levels into deep water is achievable in the current state of the game. But I agree that it has to be taken into account.

A compromise would be a linear scaling of damage taken based on your swimming skill. Consider it diving where 0 skill is belly flopping (full damage), and 10 skill is Olympic athlete (0 damage)

https://en.wikipedia.org/wiki/High_diving
Looks like 50m is a reasonable limit for sustaining no damage with highest skill and on condition of being in control of your body. Which is about 10 z-levels in-game, no? Can't quickly find a canonical z-level height, please someone add a link.

Other links:
https://physics.stackexchange.com/questions/9059/jumping-into-water

https://www.physicsforums.com/threads/maximum-free-fall-dive-into-water.119781/

https://physics.stackexchange.com/questions/106808/why-is-jumping-into-water-from-high-altitude-fatal

[CodeBandit]

Looks like 50m is a reasonable limit for sustaining no damage with highest skill and on condition of being in control of your body. Which is about 10 z-levels in-game, no? Can't quickly find a canonical z-level height, please someone add a link.

Assuming climbing t the top of a 1 story house is on average 1 story high, then we can assume it is about 4m.

There are of course inconsistencies with this argument as radio towers can be over 400m tall, yet we don't need to go up 40 flights of stairs -hence why instead rely on swimming skill to mitigate damage and leave z level height as is

[int-ua]

There are of course inconsistencies with this argument as radio towers can be over 400m tall, yet we don't need to go up 40 flights of stairs -hence why instead rely on swimming skill to mitigate damage and leave z level height as is

With 4.3 as average level height it's theoretically possible to fall from 86 meters height, where body reaches speed of almost 150 km/h, well above safe level even for most experienced divers. According to wiki, even at 75m height of Golden Gate bridge initial impact survival rate is only at about 5%: https://en.wikipedia.org/wiki/Suicides_at_the_Golden_Gate_Bridge
So while I agree that swimming skill should be factored in it's not the only factor to account for.

I'm having trouble finding statistics for minimum height at which injuries were recorded. Found code that might help: ICD-10-CM W16.112A: Fall into natural body of water striking water surface causing other injury but I still have to find any data sets containing useful data. Does anyone know any?

[int-ua]

Fixed error that existed in the first version, replaced simple scaling with formula that accounts for swimming skill level. Not ideal, but results look somewhat reasonable. Any comments?

EDIT:
changes for shallow water were made to remove the TODO and after reading https://en.wikipedia.org/wiki/Shallow_diving