UKismetMathLibrary::Subtract_ByteByte
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Subtracts byte B from byte A. The default B=1 makes it a convenient decrement node in Blueprints.
Caveats & Gotchas
- • uint8 is unsigned: if B > A the result underflows and wraps to a large value (e.g. 0-1 = 255). There is no runtime error or clamping.
- • For health/ammo systems where going below 0 is invalid, clamp A to B before subtracting or use int32 instead.
Signature
static UE_INL_API uint8 Subtract_ByteByte(uint8 A, uint8 B = 1);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | uint8 | Minuend. | — |
| B | uint8 | Subtrahend. | 1 |
Return Type
uint8 Example
Decrementing ammo C++
if (Ammo > 0)
{
Ammo = UKismetMathLibrary::Subtract_ByteByte(Ammo, 1);
}Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
Feedback
Was this helpful?