feat(xp): add +1 in lose function xp part

README.md

@@ -16,7 +16,7 @@ message (number of different rune)
 - $xp-vocal(x)=0.01 x^{1.3}+1$ where $x$ is the time spent in vocal (in second)
 - $level(x)=0.2 \sqrt{x}$ where $x$ is the xp
 - $level^{-1}(x)=(5x)^2$ where $x$ is the level
-- $lose(x,y)= x^2\cdot 10^{-2+\ln(x/85)}\cdot\lfloor y/500 \rfloor$ where $x$ is the inactivity time (hour) and $y$ is the xp
+- $lose(x,y)= x^2\cdot 10^{-2+\ln(x/85)}\cdot\lfloor y/500 +1 \rfloor$ where $x$ is the inactivity time (hour) and $y$ is the xp
 
 ## Technologies
 

xp/functions.go

@@ -28,6 +28,6 @@ func XPForLevel(level uint) uint {
 
 func Lose(time uint, xp uint) uint {
 	return uint(math.Floor(
-		math.Pow(float64(time), 2) * math.Pow(10, -2+math.Log(float64(time/85))) * math.Floor(float64(xp/500)),
+		math.Pow(float64(time), 2) * math.Pow(10, -2+math.Log(float64(time/85))) * math.Floor(float64(xp/500)+1),
 	))
 }