Objecttable in Blitzmax

[norbert]

Hi,

in the lua Script file driver.lua there load the Model and read from the Objecttable:

 

chassis=LoadModel("abstract::vehicle_viperscout.gmf")
carobject=objecttable[chassis]
car=carobject.vehicle

 

Ok, but how can I use this in BlitzMax?

 

I load my car:

Global chassis:TModel
chassis = LoadModel ("abstract::vehicle_viperscout.gmf")

 

How can I use the objecttable[chassis] in Blitzmax ?

 

Norbert

[norbert]

There is no way to AddTorque of an lua script modell in Blitzmax ?

[Flexman]

You're wanting to access a LUA object from you main program code?

 

 

Off the top of my head...

 

And in BMax before you load your scene, make an object and assign a name as a reference you can access in your script...

 

  Local tempObject:Object;
  SetGlobalObject("car_chassis", tempObject ) ;

  ' LOAD A SCENE '

  ' Cast tempObject to whatever you need '
  Local carmodel:TModel = TModel(tempObject);

 

In the LUA script set the object pointer to the name ...

 

  SetGlobalObject( "car_chassis", chassis )

 

 

There's some older threads on this, search on "SetScriptObject" and "SetGlobalObject"

[norbert]

Thank you but somehow does not work.

 

OK. In Detail.

 

When I start the Editior and use the driver.lua then I can drive in the Editor with the viperscout.

In this Script file "driver.lua" there load the Model and read from the objecttable:

 

chassis=LoadModel("abstract::vehicle_viperscout.gmf")
carobject=objecttable[chassis]
car=carobject.vehicle

 

Later in the script there add Torque to the tire:

car:AddTireTorque(tirespeed,0)

 

 

In BlitzMax I load the Model same way as in lua script file:

Global chassis:TModel 
chassis = LoadModel ("abstract::vehicle_viperscout.gmf")

 

 

In Blitzmax I must

AddTireTorque( tire:TTire, torque:Float ) 

 

but I have no tires only a TModel.

 

 

Ok how can I AddTireTorque to this Model in Blitzmax ?

[macklebee]

in bmax i believe the command is CreateTire()

CreateTire:TTire( body:TBody, pos:TVec3, pin:TVec3, radius:Float suspensionLength:Float = 0.0, springConstant:Float = 0.0, springDamping:Float = 0.0 )

[norbert]

Yes, thats right,

but I load the Model and the lua script from the car load automatic with tires and Physik.

 

The car is ready for driving. I need a Command to manipulate or transfer my TireSpeed in the Script file from the car.

[macklebee]

oh.. gotcha... guess i should read the whole post first...

 

well, just do as Flexman stated and set the tires as GlobalObjects in lua then use GetGlobalObject() in bmax to access the tires, then you should be able to add torque... assuming that you cannot access the tires from the chassis in bmax if you make it a global object.

[norbert]

Ok, thank you but the is a error: Unable to convert from leadwerks.engine.TTire to TVehicle

 

What have I do:

 

In the viperscout.lua file i have add the SetGlobalObject command:

 

pivot=object.model:FindChild("tire1")
if pivot~=nil then
	tireradius=pivot.aabb.h/2.0
	object.vehicle:AddTire(TFormPoint(pivot.position,pivot.parent,model),tireradius,suspensionlength,springconstant,springdamper)
	object.tire[0]=LoadMesh("abstract::vehicle_viperscout_tire_left.gmf",model)
	SetGlobalObject( "car_tire1", object.tire[0])
                                          pivot:Hide()
end

 

In BMax first (before Load the Scene):

Global temp_tire1_Object:Object
SetGlobalObject("car_tire1", temp_tire1_Object)

 

Second after loading the viperscout.gmf (TModel) after load the scene:

Global car_Tire1:TTire = TTire(temp_tire1_Object)

 

and in the mainloop addTorque:

tirespeed# = -(KeyDown(KEY_W)-KeyDown(KEY_S))*5
AddTireTorque( car_Tire1,  tirespeed# ) 

 

 

and I get the Error Message.

[norbert]

Nobody an Idea ?