Bicycles / Motorcycles
by Lloyd [Bleeptech] Godsey · in Torque Game Engine · 01/20/2004 (1:35 am) · 7 replies
OK.. Here's the basic wheel datablocks for a 2 wheeled vehicle..
//I hit the 4096 char limit with the full code slice.
// This is in need of severe tuning but it proves the concept. Some values are severely
// hacked to keep the wheels on (not in) the ground and to keep it from bouncing away.
To test this create a shape with 2 hub nodes and go for a ride.
The wheels should be very narrow for this, I used 2 flat 12 sided cones base to base for the
wheels to reduce the jump/lurch when turning.
// .dts files of the test shapes I used are available on request.
Next post the main datablock.
//I hit the 4096 char limit with the full code slice.
// This is in need of severe tuning but it proves the concept. Some values are severely
// hacked to keep the wheels on (not in) the ground and to keep it from bouncing away.
To test this create a shape with 2 hub nodes and go for a ride.
The wheels should be very narrow for this, I used 2 flat 12 sided cones base to base for the
wheels to reduce the jump/lurch when turning.
// .dts files of the test shapes I used are available on request.
//----------------------------------------------------------------------------
// Bike.cs V0.7
//----------------------------------------------------------------------------
// Lloyd[Bleeptech]Godsey
// 01/20/2004
//----------------------------------------------------------------------------
// Suspension is split to allow for using existing bikes or motorcycles as a pattern
datablock WheeledVehicleTire(DefaultBikeTire1)
{
shapeFile = "~/data/shapes/bike/wheel.dts";
staticFriction = 40;
kineticFriction = 125;
// Spring that generates lateral tire forces
lateralForce = 2000;
lateralDamping = 1500;
lateralRelaxation = 0.1;
// Spring that generates longitudinal tire forces
longitudinalForce = 2000;
longitudinalDamping = 1500;
longitudinalRelaxation = 0.1;
};
datablock WheeledVehicleSpring(DefaultBikeSpring1)
{
// Wheel suspension properties
length = 0.6; // Suspension travel
force = 1500; // Spring force
damping = 600; // Spring damping
antiSwayForce = 13000; // Lateral anti-sway force
};
//----------------------------------------------------------------------------
datablock WheeledVehicleTire(DefaultBikeTire2)
{
shapeFile = "~/data/shapes/bike/wheel.dts";
staticFriction = 40;
kineticFriction = 125;
// Spring that generates lateral tire forces
lateralForce = 2000;
lateralDamping = 1500;
lateralRelaxation = 0.1;
// Spring that generates longitudinal tire forces
longitudinalForce = 2000;
longitudinalDamping = 1500;
longitudinalRelaxation = 0.1;
};
datablock WheeledVehicleSpring(DefaultBikeSpring2)
{
// Wheel suspension properties
length = 0.6; // Suspension travel
force = 1500; // Spring force
damping = 600; // Spring damping
antiSwayForce = 13000; // Lateral anti-sway force
};Next post the main datablock.
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#2
01/20/2004 (3:24 pm)
As far as I can tell the gyroForce, gyroDamping and stabilizerForce are not implemented in any of the vehicle classes, though they are smiliar to some of the variables in the flyer and hover classes.
#3
// I did a shotgun approach and added all 3 at once after trying the
// ones from the flyer example and getting nada.
I'll have to comment them out and try adding them 1 at a time..
01/20/2004 (3:31 pm)
Hmm... 1 of the 3 appeared to drop the wobble way down... // I did a shotgun approach and added all 3 at once after trying the
// ones from the flyer example and getting nada.
I'll have to comment them out and try adding them 1 at a time..
#4
Below are the items that can appear in any Vehicle Datablock
Below are the items specific to each Vehicle Class
Wheeled Vehicles
Tires
Springs
Vehicle
Hover Vehicle
Vehicle
Flying Vehicle
Vehicle
01/21/2004 (10:01 am)
None of those three items exist in the HEAD revision of the vehicle code.Below are the items that can appear in any Vehicle Datablock
jetForce jetEnergyDrain minJetEnergy massCenter massBox bodyRestitution bodyFriction softImpactSound hardImpactSound minImpactSpeed softImpactSpeed hardImpactSpeed minRollSpeed maxSteeringAngle maxDrag minDrag integration collisionTol contactTol cameraRoll cameraLag cameraDecay cameraOffset dustEmitter triggerDustHeight dustHeight damageEmitter splashEmitter damageEmitterOffset damageLevelTolerance numDmgEmitterAreas splashFreqMod splashVelEpsilon exitSplashSoundVelocity softSplashSoundVelocity mediumSplashSoundVelocity hardSplashSoundVelocity exitingWater impactWaterEasy impactWaterMedium impactWaterHard waterWakeSound collDamageThresholdVel collDamageMultiplier
Below are the items specific to each Vehicle Class
Wheeled Vehicles
Tires
shapeFile mass radius staticFriction kineticFriction restitution lateralForce lateralDamping lateralRelaxation longitudinalForce longitudinalDamping logitudinalRelaxation
Springs
length force damping antiSwayForce
Vehicle
jetSound engineSound squealSound WheelImpactSound tireEmitter maxWheelSpeed engineTorque engineBrake brakeTorque
Hover Vehicle
Vehicle
dragForce vertFactor floatingThrustFactor mainThrustForce reverseThrustForce strafeThrustForce turboFactor stabLenMin stabLenMax stabSpringConstant stabDampingConstant gyroDrag normalForce restorativeForce steeringForce rollForce pitchForce jetSound engineSound floatSound dustTrailEmitter dustTrailOffset triggerTrailHeight dustTrailFreqMod floatingGravMag brakingForce brakingActivationSpeed forwardJetEmitter
Flying Vehicle
Vehicle
jetSound engineSound maneuveringForce horizontalSurfaceForce verticalSurfaceForce autoInputDamping steeringForce steeringRollForce rollForce autoAngularForce rotationalDrag autoLinearForce maxAutoSpeed hoverHeight createHoverHeight forwardJetEmitter backwardJetEmitter downJetEmitter trailEmitter minTrailSpeed vertThrustMultiple
#5
This is the list I was hoping to find for the vehicle nodes/emitters/physics tweak points.
The "Procto-Theological" (Pull it out of your a** and pray) method of namespace testing is a real pain and lists like this are a great help.
Hurray for LabRat! // Give him an extra farmers daughter to chase. :)
Post this one as a resource and I'll give it a 5.
All hail Mighty LabRat.. Patron saint of the caffeine deficient.. :)
01/21/2004 (10:53 am)
Cool! Thanks Harold. This is the list I was hoping to find for the vehicle nodes/emitters/physics tweak points.
The "Procto-Theological" (Pull it out of your a** and pray) method of namespace testing is a real pain and lists like this are a great help.
Hurray for LabRat! // Give him an extra farmers daughter to chase. :)
Post this one as a resource and I'll give it a 5.
All hail Mighty LabRat.. Patron saint of the caffeine deficient.. :)
#6
http://www.garagegames.com/docs/tge/general/apds10.php
Use the starter.racing as reference, and look at the values for the buggy...
For a bicycle you would need to make the mass less... and then you would also need much less
power (torque)
02/09/2006 (6:23 am)
You should take your bicycle (or any vehicles') mass into account...http://www.garagegames.com/docs/tge/general/apds10.php
Use the starter.racing as reference, and look at the values for the buggy...
For a bicycle you would need to make the mass less... and then you would also need much less
power (torque)
#7
Remember some time back I was looking for help with the 2nd generation Charger bikes? A guy has this concept for a super efficient motor controller..."only" problem is he doesn't follow through on stuff. I'm looking for someone to make a prototype controller with the features that have been submitted to the Patent office.
Are you or someone you know able to consider time for this?
Thanks,
Sam
05/01/2009 (12:01 am)
Lloyd, Ahoy! Remember some time back I was looking for help with the 2nd generation Charger bikes? A guy has this concept for a super efficient motor controller..."only" problem is he doesn't follow through on stuff. I'm looking for someone to make a prototype controller with the features that have been submitted to the Patent office.
Are you or someone you know able to consider time for this?
Thanks,
Sam
Torque Owner Lloyd [Bleeptech] Godsey
//---------------------------------------------------------------------------- datablock WheeledVehicleData(DefaultBike) { category = "Vehicles"; shapeFile = "~/data/shapes/bike/bike.dts"; emap = false; maxDamage = 1.0; destroyedLevel = 0.5; maxSteeringAngle = 0.65; // Maximum steering angle, should match animation tireEmitter = TireEmitter; // All the tires use the same dust emitter cameraRoll = false; // Roll the camera with the vehicle cameraMaxDist = 16; // Far distance from vehicle cameraOffset = 4.5; // Vertical offset from camera mount point cameraLag = 0.1; // Velocity lag of camera cameraDecay = 0.75; // Decay per sec. rate of velocity lag // Rigid Body mass = 45; // mass * what = kilos? massCenter = "0 0 0"; // Center of mass for rigid body // Width/Length/Height for this model massBox = "10 10 1"; // Size of box used for moment of inertia, // if zero it defaults to object bounding box drag = 0.8; // Drag coefficient bodyFriction = 1.9; bodyRestitution = 0.9; //------------------------------------------------------------------------ // The following lines were yoinked from the Tribes 2 MPB script // and appear to work after upping the values. // Do these names actually mean anything to the Torque engine? gyroForce = 900; gyroDamping = 9; stabilizerForce = 100; //------------------------------------------------------------------------ minImpactSpeed = 5; // Impacts over this invoke the script callback softImpactSpeed = 5; // Play SoftImpact Sound hardImpactSpeed = 15; // Play HardImpact Sound integration = 4; // Physics integration: TickSec/Rate collisionTol = 0.1; // Collision distance tolerance contactTol = 0.1; // Contact velocity tolerance // Engine engineTorque = 1800; // Engine power engineBrake = 900; // Braking when throttle is 0 brakeTorque = 2700; // When brakes are applied maxWheelSpeed = 55; // Engine scale by current speed / max speed // Energy maxEnergy = 10000; jetForce = 3000; minJetEnergy = 30; jetEnergyDrain = 2; };And this is the code from my hacked vehicles.cs for setting it up.
function DefaultBike::onAdd(%this, %obj) { %obj.setWheelTire(0,DefaultBikeTire1); %obj.setWheelSpring(0,DefaultBikeSpring1); %obj.setWheelTire(1,DefaultBikeTire2); %obj.setWheelSpring(1,DefaultBikeSpring2); %obj.setWheelSteering(0,1); %obj.setWheelSteering(1,0); %obj.setWheelPowered(0,false); %obj.setWheelPowered(1,true); }