Variables

Understanding Variable Types

• Variables = “values that can change during game”

• Examples in games:

  • Health
  • Ammo
  • Score

• Creating Variables

• Located in Variables section (left side)

  • Can add via plus button
  • Can “promote to variable” by right-clicking pins

• Default values settable after compile

• Instance Editable Variables

• Makes variables changeable per instance

  • Enable via:

    Details panel checkbox Eyeball icon in variable list

• Each instance maintains own version

  • Can have different values per copy

• Common Variable Types

• Boolean

  • True/false statements

• Numbers

  • Integer: Whole numbers
  • Float: Decimal points allowed
  • Integer 64: Larger number capacity

• Text Types

  • String: Character arrays/words
  • Text: Localization-ready strings
  • Name: Asset references

• Spatial Types

  • Vector: Three float points (x,y,z)
  • Rotator: Pitch/role values
  • Transform: Location + rotation + scale combined

Variables serve as dynamic value storage in games, with various types suited for different needs. They can be made instance-editable to allow unique values per copy of an actor, making them flexible for diverse gameplay scenarios.