#pragma once

#include "CoreMinimal.h"

/** Constants of the simulation step (Core/DescentSimSubsystem.h, DESIGN_UE.md section 1.4). */
namespace Descent::Tune::Sim
{
	/** The largest dt a single Step() integrates, seconds. Longer frames are simulated slower, not faster (section 1.4). */
	constexpr double MaxStepDt = 0.05;

	/** The largest dt LateStep() passes on, seconds. Late steps only smooth cosmetics, so the clamp is looser. */
	constexpr double MaxLateDt = 0.25;

	/** FastForward's default step, seconds: the 30 FPS of the fixed-time-step scenario runs (section 9.2). */
	constexpr double DefaultFastForwardDt = 1.0 / 30.0;

	/** FastForward refuses to run more steps than this in one call (a typo like 1e9 seconds must not hang the game). */
	constexpr int64 MaxFastForwardSteps = 5'000'000;

	/** A debug intent override with at most this much sim time left counts as expired (floating-point slack). */
	constexpr double OverrideEpsilonSec = 1e-9;
}