From abaa6c6dd91ef58c3ed77b537f614e69397fbe7e Mon Sep 17 00:00:00 2001
From: Leon Friedrich <60421075+ElectroJr@users.noreply.github.com>
Date: Fri, 9 Dec 2022 14:48:53 +1300
Subject: [PATCH] Increase error tolerance of power debug assert (#12828)

---
 Content.Server/Power/Pow3r/BatteryRampPegSolver.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Content.Server/Power/Pow3r/BatteryRampPegSolver.cs b/Content.Server/Power/Pow3r/BatteryRampPegSolver.cs
index c7195e918a..54e52ef435 100644
--- a/Content.Server/Power/Pow3r/BatteryRampPegSolver.cs
+++ b/Content.Server/Power/Pow3r/BatteryRampPegSolver.cs
@@ -252,7 +252,14 @@ namespace Content.Server.Power.Pow3r
                 // available supply. IMO this is undesirable, but I can't think of an easy fix ATM.
 
                 battery.CurrentStorage -= frameTime * battery.CurrentSupply;
-                DebugTools.Assert(battery.CurrentStorage >= 0 || MathHelper.CloseTo(battery.CurrentStorage, 0, 1e-5));
+#if DEBUG
+                // Manual "MathHelper.CloseToPercent" using the subtracted value to define the relative error.
+                if (battery.CurrentStorage < 0)
+                {
+                    float epsilon = Math.Max(frameTime * battery.CurrentSupply, 1) * 1e-4f;
+                    DebugTools.Assert(battery.CurrentStorage > -epsilon);
+                }
+#endif
                 battery.CurrentStorage = MathF.Max(0, battery.CurrentStorage);
 
                 battery.SupplyRampTarget = battery.MaxEffectiveSupply * relativeTargetBatteryOutput - battery.CurrentReceiving * battery.Efficiency;