Sprint Stamina

Before you paste3

• StaminaFloat

  My Blueprint, then + Variable.

• bIsSprintingBoolean

  My Blueprint, then + Variable.

• IA_SprintInput Action

  Create the Input Action, then map it to a key in your Input Mapping Context.

Good to know. This graph tracks Stamina and the bIsSprinting flag. It does not change walk speed by itself: pair it with Sprint (Hold Shift), or set Max Walk Speed wherever bIsSprinting changes.

How it works

1. Step 1: 1Start fullEvent BeginPlay sets Stamina to 100.
2. Step 2: 2Press to sprintWhen IA_Sprint starts, a Branch checks that Stamina is above 0 and then sets bIsSprinting to true.
3. Step 3: 3Release to stopWhen IA_Sprint completes, bIsSprinting goes back to false.
4. Step 4: 4Drain while sprintingOn every Tick while bIsSprinting is true, Stamina loses 10 × Delta Seconds, clamped between 0 and 100. That is 10 per second at any frame rate.
5. Step 5: 5Empty means stopWhen Stamina reaches 0, bIsSprinting is forced off, even if the key is still held.
6. Step 6: 6Recover when not sprintingOtherwise Stamina gains 15 × Delta Seconds, up to 100.