This project is somewhat of a one off / test. I might come back to it, I might not. bratbot has done a wonderful job and I believe his mod now has the more functionality than my fork so go use his mod

This mod is a significantly modified fork of bratbot_1's lifesteal mod which can be found here

There are two versions of this mod:

Type 1

Only needs to be installed on the server (unless you are on a singleplayer world)
Does not include any custom items
Does not have a config; Is managed purely through game rules

Type 2

Needs to be installed on both the client and the server
Introduces hearts, heart crystals, heart dust, and heart ore into the game
Does not have a config; Is managed purely through game rules

Configuration (Both)

Configuration is purely managed through gamerules, here is a list of gamerules and what they do.

Player kills only

Gamerule: 'lifeSteal:playerKillOnly'

Type: Boolean (true/false)

Description: If a player should only lose health when dying to a player.

Default: true

Ban when minimum health

Gamerule: 'lifeSteal:banWhenMinHealth'

Type: Boolean (true/false)

Description: If a player should be banned when they reach the minimum health value

Default: true

Life Steal Amount

Gamerule: 'lifeSteal:stealAmount'

Type: Integer

Description: The amount of health that should be stolen upon death

Default: 2

Minimum Player Health

Gamerule: 'lifeSteal:minPlayerHealth'

Type: Integer

Description: The minimum health a player can reach (if the value is below 1 it is automatically corrected to 1)

Default: 1

Maximum Player Health

Gamerule: 'lifeSteal:maxPlayerHealth'

Type: Integer

Description: The maximum health a player can reach, set to a value of 0 or below to disable.

Default: 40 (20 hearts)

Player Maximum health is now stored via the maximum health attribute making it easy to modify and for other mods to be compatible with as long as they dont actively enfore their own max health values.