Plutonium

dont think so, that has the same problem, here is my implementation of your formula with a textbox (to verify accuracy):

updateStamina()
{
    self endon("disconnect");

    if(self hasPerk("specialty_longersprint"))
    {
        self.maxsprintcount = 7.0;
    }
    else
    {
        self.maxsprintcount = 3.5;
    }
    
    self.sprintcount = self.maxsprintcount;
    
    for(;;)
    {
        if(self isSprinting() && self.sprintcount > 0)
        {
            self.sprintcount = self.sprintcount - 0.1;
        }
        else if(self.sprintcount < 0.5)
        {
            self.sprintcount = self.sprintcount + 0.05;
        }
        else if(self.sprintcount < self.maxsprintcount)
        {
            self.sprintcount = self.sprintcount + 0.1;
        }
        
        self.sprintcount = max(0, min(self.sprintcount, self.maxsprintcount));
        
        staminaPercentage = int((self.sprintcount / self.maxsprintcount) * 100);
        
        if(isDefined(self.staminaText))
        {
            self.staminaText setText("Stamina: " + staminaPercentage + "%");
            
            if(staminaPercentage <= 25)
            {
                self.staminaText.color = (200, 0, 0);
            }
            else
            {
                self.staminaText.color = (0, 200, 0);
            }
        }
        
        wait 0.05;
    }
}

Im currently trying to develop a stamina UI, problem is, sometimes it doesnt match the player stamina. For example, if you sprint, jump and repeat these like 4 times you would ran out of stamina even though the bar would not even be at half. Any ideas on whats happening or how the stamina regen or spending works?