stamina: Move speed reduction to a SetupMove (#457)

* stamina: Move speed reduction to a SetupMove

We should not be forcing the speed of anything in a temporary manner, especially reverting back to config values when these may not be the values that were being used.

* stamina: use a plugin hook

* stamina: style fix

plugins/stamina/sh_plugin.lua

@@ -63,15 +63,13 @@ local function CalcStaminaChange(client)
 			client:SetLocalVar("stm", value)
 
 			if (value == 0 and !client:GetNetVar("brth", false)) then
-				client:SetRunSpeed(walkSpeed)
 				client:SetNetVar("brth", true)
 
 				character:UpdateAttrib("end", 0.1)
 				character:UpdateAttrib("stm", 0.01)
 
 				hook.Run("PlayerStaminaLost", client)
 			elseif (value >= 50 and client:GetNetVar("brth", false)) then
-				client:SetRunSpeed(runSpeed)
 				client:SetNetVar("brth", nil)
 
 				hook.Run("PlayerStaminaGained", client)
@@ -80,6 +78,11 @@ local function CalcStaminaChange(client)
 	end
 end
 
+function PLUGIN:SetupMove(client, mv, cmd)
+	if (client:GetNetVar("brth", false)) then
+		mv:SetMaxClientSpeed(client:GetWalkSpeed())
+	end
+end
 
 if (SERVER) then
 	function PLUGIN:PostPlayerLoadout(client)