Temperature

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This information is reliable as of patch 2.0.196.1. If this is no longer the current patch, you can help by updating it.

This information is reliable as of patch 2.0.196.1.

Temperature is one mechanic that has a passive effect. In Qud, the default ambient temperature of the world is 25. There is no unit for temperature in game, but will be referred to as T in this article as shorthand. For each object, there are usually four important temperature thresholds:

• Freezing temperature, the temperature an object becomes frozen (by default, this is -100T)
• Brittle temperature, the temperature an object starts to freeze (default 0T)
• Flaming temperature, the temperature an object becomes flaming (default 350T)
• Vapor temperature, the temperature an object is vaporized (and instantly destroyed). (default 10,000T)

At the end of a turn, if an object's temperature is more than 5T away from the ambient temperature, the temperature will move towards the ambient temperature by the difference in temperature/50, or a flat 5T depending on which is greater. This means that passively, any temperature change will return back to the normal ambient temperature asymptotically if the temperature is farther than 275T away from ambient temperature (300T or -250T), and that the shortest time to return to ambient temperature is (temp difference)/5 turns.

Forced temperature change

Temperature changes require the object and the heat source to be in the same phase. Heat and Cold resist are the percentage that harmful temperature changes actually affect the object. For example, a 25 heat resist from a Issachari sun veil mean harmful positive heat increases will be decreased by 25%. "Harmful" temperature changes refer only to a temperature change were it would bring the object's temperature to greater than 50 or less than 25. Heat and cold resist do not change how temperature changes between 25-50T. If the creature has Fatty Hump, all temperature changes are halved, including cooling down when on fire, or heating up when cold.

Cold

Cold is any negative temperature change. The following are examples of things that cause decreases in temperature:

• The bite of a ice frog
• rimewyks
• The depths of Bethesda Susa
• All sources of cold or freezing damage
• Being covered in a liquid with a cooling factor

Freezing

An entity's quickness is reduced by 50 times the absolute value of their current temperature divided by their freezing temperature (both measured relative to their brittle temperature) rounded down (which means a temperature of -45 will for the player character result in a quickness reduction of 22) if they are freezing. If frozen, however, they will be unable to move or perform any physical actions but will not have their quickness reduced; most mental actions, however, can still be performed while frozen.

Heat

Heat is all positive temperature changes. The following are examples of things that cause increases in temperature:

• Stepping in, drinking, or getting covered in lava, which increases temperature by 1,000.
• All sources of heat and fire damage

Fighting Fire

The player character and damaged NPCs that have an intelligence and willpower greater than 7 are able to fight fire on themselves as long as they have the same phase as the target. Player characters can fight fire on nearby creatures and objects in their inventory as well, however they cannot fight fire if they are flying and the subject is not. By default, this will use the creature's hands, decreasing temperature by -100T. If they have no hands or are currently prone, they will roll on the ground instead. This will decrease the temperature by -200 instead. A creature cannot roll on the ground if they are phased or flying.

If attempting to fight fire on a hostile creature, the player character must succeed a roll of 1d201-20 (Avg: 10.5) + Agility modifier. If this is lower than the creature's DV, they will dodge the fire fighting attempt.

References

• If not specified, it comes from XRL.World.Parts.Physics