Water Purity

Water Purity

Not all water is safe to drink. Yet-Another-Thirst features a water purity system, forcing players to filter or boil their water before drinking.

Purity Levels

Water-filled containers carry a Purity NBT integer tag ranging from 0 to 3:

Level	Name	Tooltip Color	Nausea + Hunger + Thirsty Chance	Poison Chance
0	Dirty	Brown	100%	30%
1	Slightly Dirty	Gray-Brown	50%	10%
2	Acceptable	Blue-Gray	5%	0%
3	Purified	Bright Blue	0%	0%

Note: All chance values are configurable in yet_another_thirst/common.toml. The Nausea + Hunger + Thirsty debuff applies Minecraft's Nausea and Hunger, alongside the mod's custom Thirsty effect which accelerates dehydration rate.

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Harvesting Water Purity

When filling a water container from a water block in the world, the purity level is calculated dynamically:

• Source Blocks: Standard source blocks default to Dirty (0).
• Running Water: Non-source flowing water gets a purity boost (default: +1 purity level, configurable).
• Altitude Spring Water:
  • Mountain Springs: Water harvested above Y-level 100 receives +1 purity level.
  • Cave Springs: Water harvested below Y-level 48 receives +1 purity level.
• Cauldrons: Cauldrons store a block-state purity (BLOCK_PURITY property from 0 to 4 where 0 is uninitialized, and 1-4 map to purity levels 0-3).
  • Blends purity when mixing water of different purities.
  • Dispenses water matching the cauldron's internal purity level.

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Supported Containers

• Glass Bottle & Water Potion
• Terracotta Bowl & Terracotta Water Bowl
• Wooden Bowl & Wooden Water Bowl
• Bucket & Water Bucket

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Mod Integrations

Jade Compatibility

When Jade is loaded, looking at a water block or a filled cauldron displays a tooltip showing the exact purity level of the water before you harvest it.

Dispensers

Dispenser fill behavior is purity-aware. When a dispenser uses a bucket or a glass bottle to harvest water, the resulting container is correctly tagged with the block's current purity.