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Re: Newton 2 wrapper
[Re: VeT]
#256216
03/15/09 11:36
03/15/09 11:36
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Joined: Aug 2004
Posts: 1,345
Kyiv, Ukraine
VeT
OP
Serious User
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OP
Serious User
Joined: Aug 2004
Posts: 1,345
Kyiv, Ukraine
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Hey, guys... nobody wants to help me? I have some troubles.
Now i'm working in 3 direction: DG car(times faster than usual raycast car), buoyancy(physic of the bodies that falls in the water) and character controler(we would be able to create person control physic).
Next steps would be different examples of cars(after basic DG car) and ragdoll (after character controler).
I really want to finish this as fast as possible, but i haven't enough time (and, sometimes, knowledges).
So, if somebody would have some time and desire to improve Wrapper, write here or PM me.
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Re: Newton 2 wrapper
[Re: VeT]
#256245
03/15/09 15:17
03/15/09 15:17
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Joined: Jul 2008
Posts: 18
YNG
Newbie
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Newbie
Joined: Jul 2008
Posts: 18
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I have a working car physic with Newton but it uses 1.53. I dunno what are the diffrences between 1.53 and 2.16 so the code i gave is working at 1.53. I have shown simply how to use torque, how to set the car etc. Making better steering formulas, rpm-torque formulas or similar things can be made as you wish. Hope it will be useful for the community. And btw, nice contribution and great work by you VET 
var temp_var;
float temp_float;
ENTITY* car;
ENTITY* FLwheelPtr;
ENTITY* FRwheelPtr;
ENTITY* BLwheelPtr;
ENTITY* BRwheelPtr;
ENTITY* tireId;
ENTITY* tireModel;
D3DXMATRIX m;
void tireUpdate(NewtonJoint* vehicle)
{
// FOR EACH TIRE APPLY THESE VALUES
for (tireId = NewtonVehicleGetFirstTireID (vehicle); tireId!=NULL; tireId = NewtonVehicleGetNextTireID (vehicle, tireId))
{
NewtonVehicleSetTireSideSleepCoeficient(vehicle,tireId,0.0);
NewtonVehicleSetTireMaxSideSleepSpeed (vehicle,tireId,999.0);
NewtonVehicleSetTireLongitudinalSlideCoeficient(vehicle,tireId,0.0);
NewtonVehicleSetTireMaxLongitudinalSlideSpeed (vehicle,tireId,999.0);
}
// CALCULATE AVERAGE TIRE SPEED
tireId = NewtonVehicleGetFirstTireID(vehicle);
temp_var = NewtonVehicleGetTireLongitudinalSpeed(vehicle,tireId);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId);
temp_var += NewtonVehicleGetTireLongitudinalSpeed(vehicle,tireId);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId);
temp_var += NewtonVehicleGetTireLongitudinalSpeed(vehicle,tireId);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId);
temp_var += NewtonVehicleGetTireLongitudinalSpeed(vehicle,tireId);
temp_var *= 0.25;
if(key_w)
{
if(temp_var<-2) //if tires average speed is smaller than -2 and key W pressed >>>>>> APPLY BRAKE TO ALL TIRES
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 2 //Back Left
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 3 //Back Right
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
}
else //else >>>>>> APPLY 1500 TORQUE FORWARD TO REAR TIRES
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 2 //Back Left
NewtonVehicleSetTireTorque(vehicle,tireId,1500);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 3 //Back Right
NewtonVehicleSetTireTorque(vehicle,tireId,1500);
}
}
else if(key_s)
{
if(temp_var<2) //if tires average speed is smaller than 2 >>>>>> APPLY 1500 TORQUE BACKWARD TO REAR TIRES
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 2 //Back Left
NewtonVehicleSetTireTorque(vehicle,tireId,-1500);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 3 //Back Right
NewtonVehicleSetTireTorque(vehicle,tireId,-1500);
}
else //else >>>>>> APPLY BRAKE TO ALL TIRES
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 2 //Back Left
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 3 //Back Right
temp_float = NewtonVehicleTireCalculateMaxBrakeAcceleration(vehicle,tireId) * 0.7;
NewtonVehicleTireSetBrakeAcceleration(vehicle,tireId,temp_float,temp_float);
}
}
if(key_a) //if key A >>>>>> SET FRONT TIRES ANGLE TO 0.35 RADIAN
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
NewtonVehicleSetTireSteerAngle(vehicle,tireId,0.35);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
NewtonVehicleSetTireSteerAngle(vehicle,tireId,0.35);
}
else if(key_d) //if key D >>>>>> SET FRONT TIRES ANGLE TO -0.35 RADIAN
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
NewtonVehicleSetTireSteerAngle(vehicle,tireId,-0.35);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
NewtonVehicleSetTireSteerAngle(vehicle,tireId,-0.35);
}
else //else >>>>>> SET FRONT TIRES ANGLE TO 0.0 RADIAN
{
tireId = NewtonVehicleGetFirstTireID(vehicle); //tireId 0 //Front Left
NewtonVehicleSetTireSteerAngle(vehicle,tireId,0.0);
tireId = NewtonVehicleGetNextTireID(vehicle, tireId); //tireId 1 //Front Right
NewtonVehicleSetTireSteerAngle(vehicle,tireId,0.0);
}
}
action Newton_Car()
{
car = me;
while(!newton_running){wait(1);}
NewtonBody* car_body = newton_addentity(me, 1000, NEWTON_CONVEXHULL, tireRubberID, onforceandtorque);
NewtonBodySetAutoFreeze( car_body, 0);
NewtonBodySetLinearDamping(car_body,0.005);
// NewtonBodySetAngularDamping(car_body,vectorf(0.5,0.5,0.5));
float upDir[3] = {0.0, 0.0, 1.0};
NewtonJoint* car_joint = NewtonConstraintCreateVehicle(nworld, upDir[0], car_body);
int tireMass = 30;
float suspensionLength = 0.25;
float suspensionSpring =700.0;
float suspensionShock = 60.0;
float wheelradius = 0.4;
float tirePin[3] = {0.0, 1.0, 0.0};
D3DXMATRIX tire_offset;
VECTOR tirepos;
vec_for_bone(tirepos,me,"FLBone");
vec_sub(tirepos,my.x);
D3DXMatrixTranslation(&tire_offset, tirepos.x * QUANTTOMETER,tirepos.y * QUANTTOMETER,tirepos.z * QUANTTOMETER);
NewtonVehicleAddTire(car_joint, &tire_offset, tirePin[0], tireMass, wheelradius, wheelradius, suspensionShock,suspensionSpring,suspensionLength, FLwheelPtr, 5);
vec_for_bone(tirepos,me,"FRBone");
vec_sub(tirepos,my.x);
D3DXMatrixTranslation(&tire_offset, tirepos.x * QUANTTOMETER,tirepos.y * QUANTTOMETER,tirepos.z * QUANTTOMETER);
NewtonVehicleAddTire(car_joint, &tire_offset, tirePin[0], tireMass, wheelradius, wheelradius, suspensionShock,suspensionSpring,suspensionLength, FRwheelPtr, 5);
vec_for_bone(tirepos,me,"BLBone");
vec_sub(tirepos,my.x);
D3DXMatrixTranslation(&tire_offset, tirepos.x * QUANTTOMETER,tirepos.y * QUANTTOMETER,tirepos.z * QUANTTOMETER);
NewtonVehicleAddTire(car_joint, &tire_offset, tirePin[0], tireMass, wheelradius, wheelradius, suspensionShock,suspensionSpring,suspensionLength, BLwheelPtr, 5);
vec_for_bone(tirepos,me,"BRBone");
vec_sub(tirepos,my.x);
D3DXMatrixTranslation(&tire_offset, tirepos.x * QUANTTOMETER,tirepos.y * QUANTTOMETER,tirepos.z * QUANTTOMETER);
NewtonVehicleAddTire(car_joint, &tire_offset, tirePin[0], tireMass, wheelradius, wheelradius, suspensionShock,suspensionSpring,suspensionLength, BRwheelPtr, 5);
NewtonVehicleSetTireCallback(car_joint, tireUpdate);
while(me!=NULL)
{
// SET ALL TIRES POSITION AND ANGLE [ THESE LINES ARE NOT AT TIRE CALLBACK FUNC. BECAUSE MAKING THAT CAUSES VISUAL TIRES TO UPDATE 1 FRAME LATER THAN NEWTON TIRES ]
for (tireId = NewtonVehicleGetFirstTireID (car_joint); tireId!=NULL; tireId = NewtonVehicleGetNextTireID (car_joint, tireId))
{
tireModel = NewtonVehicleGetTireUserData (car_joint, tireId);
NewtonVehicleGetTireMatrix(car_joint,tireId, m);
ent_setmatrix_rb(tireModel,m);
}
wait(1);
}
}
For the creation of models:
FLwheelPtr = ent_create("tekerlekL.mdl",nullvector,NULL);
FRwheelPtr = ent_create("tekerlekR.mdl",nullvector,NULL);
BLwheelPtr = ent_create("tekerlekL.mdl",nullvector,NULL);
BRwheelPtr = ent_create("tekerlekR.mdl",nullvector,NULL);
you = ent_create("350z.mdl",vector(6500,-1200,1100),Newton_Car);
// FOR EACH TIRE APPLY THESE VALUES
for (tireId = NewtonVehicleGetFirstTireID (vehicle); tireId!=NULL; tireId = NewtonVehicleGetNextTireID (vehicle, tireId))
{
NewtonVehicleSetTireSideSleepCoeficient(vehicle,tireId,0.0);
NewtonVehicleSetTireMaxSideSleepSpeed (vehicle,tireId,999.0);
NewtonVehicleSetTireLongitudinalSlideCoeficient(vehicle,tireId,0.0);
NewtonVehicleSetTireMaxLongitudinalSlideSpeed (vehicle,tireId,999.0);
}
I don't exactly know how the values should be or their min,max values at these lines of tire Callback. But it just works fine with these also.
Last edited by YNG; 03/15/09 15:21.
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