Research:Magic

Spell Casting

Chance of successful Spell Cast

Actions affected	On cast attempt
Description
Implementation status
Analysis status	Accurate, but requires more work; spell skill depends on dominant school for multi effect spells, but is unspecified; Sound spell effect is not accounted for

chance = (Spells Skill * 2 + Willpower / 5 + Luck / 10 - SpellCost + CastPenalty) * (CurrentFatigue + MaximumFatigue * 1.5) / (MaximumFatigue * 2)

Cast cost

Actions affected	On cast attempt
Description
Implementation status
Analysis status	Does not account for multiple effect spells, non-duration spells or fixed magnitude spells

cost = 0.1 + ((min effect value / 20) + (max effect value / 20)) * ((duration - 1) / 2) + (range / 40).

x1.5 for ranged spell. Constant effect enchantments use fEnchantmentConstantDurationMult as their duration values (default 100).

• Touch/Self

cost = base cost * ((max + min) * duration * 0.025 + area * 0.0125)

• Target

cost = base cost * ((max + min) * duration * 0.3125 + area * 0.0125)

• Constant effect

cost = base cost * ((max + min) * 2.5 + area * 0.025)

The base cost are here

Magic Damage and Mitigation

Actions affected	On magic hit
Description
Implementation status
Analysis status	Ignores willpower resists; which effects magic resistance apply to; reflection and absorption

Spell Damage = Damage - Damage * ( Resistance - Weakness ) / 100

Item Charge

Using enchanted items

Actions affected	On enchanted item use
Description	Charge consumed on use depends on skill.
Implementation status
Analysis status	Verified; but a poorly scaling mechanic

x = 0.01 * (110 - pcEnchant)
charge used = int(x * enchant base charge cost)

This makes items last 10 times longer at 100 enchant compared to 10 enchant, making it scale a little too well. MCP uses x = 0.025 * (400 - pcEnchant).

Natural recharge

Actions affected	On game tick
Description	Enchanted items may gain charge over time.
Implementation status
Analysis status	Verified

Every item in the player's inventory charges by tickTime * fMagicItemRechargePerSecond. Items anywhere else do not charge.

Soulgem charging

Refer to Player Craft Skills.