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Purpose

Attribute Level Link Definitions allow designers to create automatic attribute relationships without writing code. Example:
  • 1 Strength → +10 MaxHealth
  • Every Dexterity level increases AttackSpeed
  • Wisdom increases Mana Regen over time
This system is the backbone of RPG-style scaling.
  1. Right-click → Data Asset → AttributeLevelLinkDefinition
  2. Add an entry to Links array
  3. Configure:
  • Source Attribute (e.g., Strength)
  • Target Attribute (e.g., MaxHealth)
  • Operation (Add, Multiply, Override)
  • Formula or fixed magnitude
  • Triggers

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Supported Operations

UMAS supports:
  • Additive (+X)
  • Multiplicative (*X)
  • Override (set to value)
  • Curve-driven scaling
  • Percentage-of-source
  • Level-based rules
Examples:
  • Add 10 per every level of Strength
  • Add 5% of Endurance to Defense
  • Override MaxHealth if “Vitality > 50”

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Supported Triggers

  • On source attribute value change
  • On source attribute level change
  • On profile load
  • On effect modify
  • On progression update

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Execution Order

  1. Source attribute updates
  2. Link definitions re-evaluated
  3. Target attribute recalculates
  4. Events fire
  5. Replication updates clients
UMAS prevents recursive infinite loops.

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Designer Notes

  • Keep formulas simple when possible
  • Group scaling logic by category (Combat, Magic, Survival)
  • You can stack multiple link assets on one profile

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Developer Notes

  • Link rules are deterministic
  • Calculations run through the main modification engine
  • Execution is batched for performance
  • Order-of-operations mirrors GAS-style modifiers