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Clamp after AdjustMoles() (#22907)

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Clamping is needed because x - x can be negative with floating point
numbers. If we don't clamp here, the caller always has to call
GetMoles(), clamp, then SetMoles(), which makes this function not very
useful.
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Kevin Zheng 2023-12-23 20:56:39 -08:00 • committed by GitHub
parent 30ff5fde69
commit ecf65fbacc
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1 changed files with 3 additions and 6 deletions
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9
Content.Server/Atmos/GasMixture.cs
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@ -120,12 +120,9 @@ namespace Content.Server.Atmos
if (!float.IsFinite(quantity))
throw new ArgumentException($"Invalid quantity \"{quantity}\" specified!", nameof(quantity));
Moles[gasId] += quantity;
var moles = Moles[gasId];
if (!float.IsFinite(moles) || float.IsNegative(moles))
throw new Exception($"Invalid mole quantity \"{moles}\" in gas Id {gasId} after adjusting moles with \"{quantity}\"!");
// Clamping is needed because x - x can be negative with floating point numbers. If we don't
// clamp here, the caller always has to call GetMoles(), clamp, then SetMoles().
Moles[gasId] = MathF.Max(Moles[gasId] + quantity, 0);
}
}