74 lines
2.4 KiB
Ucode
74 lines
2.4 KiB
Ucode
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/**
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* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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*/
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class SVehicleSimTank extends SVehicleSimCar
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native(Physics);
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var float LeftTrackVel;
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var float RightTrackVel;
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var float LeftTrackTorque;
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var float RightTrackTorque;
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// With full throttle applied, the tank engine will split up
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// the MaxEngineToque across both tracks. This will be an even
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// split unless the tank is being steered. When steered, the
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// torque will be split based on the InsideTrackTorqueCurve
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// according to its current speed.
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//
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// For example...
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// When driving forward each track gets 50% of the total
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// torque. However, if the tank is steering left and the
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// InsideTrackTorqueCurve is 0.2, this will apply 20% of
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// the engine torque to the left track and the remaining
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// 80% will be applied to the right track. If the
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// InsideTrackTorqueCurve is -0.2 it will still split the
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// torque 20/80 however the inside torque will be applied
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// in the reverse direction.
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//
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// Keep in mind that total torque is conserved across both
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// tracks so if you were to direct 100% to the inside track
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// there wouldn't be any torque left to send to the outside
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// track.
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//
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// In addition, any track wheels with a positive SteerFactor
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// will have their lateral stiffness adjusted using
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// TurnMaxGripReduction/TurnGripScaleRate when tracks are at different speeds.
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//
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// TurnInPlaceThrottle allows you to set a reduced amount
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// of throttle for turning in place.
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var() float MaxEngineTorque;
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var() float EngineDamping;
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var() float InsideTrackTorqueFactor;
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var() float SteeringLatStiffnessFactor;
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var() float TurnInPlaceThrottle;
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/** Maximum amount we will reduce lateral grip. */
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var() float TurnMaxGripReduction;
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/** How quickly grip drops off based on difference in track speed. */
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var() float TurnGripScaleRate;
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/** If true, tank will turn in place when just steering is applied. */
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var() bool bTurnInPlaceOnSteer;
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cpptext
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{
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// SVehicleSimBase interface.
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virtual void ProcessCarInput(ASVehicle* Vehicle);
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virtual void UpdateVehicle(ASVehicle* Vehicle, FLOAT DeltaTime);
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virtual void ApplyWheels(FLOAT InLeftTrackVel, FLOAT InRightTrackVel, ASVehicle* Vehicle);
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}
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DefaultProperties
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{
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bWheelSpeedOverride=true
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bTurnInPlaceOnSteer=true
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TurnMaxGripReduction=0.97
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TurnGripScaleRate=1.0
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MaxEngineTorque=500
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}
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