GetVehicleHandling: Difference between revisions

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(Made the example a bit nicer, fixed return values on failure, renamed it to getVehicleHandlingProperty to make the name more descriptive and made sure it should work (property <-> prop))
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==Example==
==Example==
<section name="Server & Client" class="both" show="true">
<section name="Server & Client" class="both" show="true">
This example simulates the previous syntax of this function, getVehicleHandling ( element theVehicle, string property )
This example creates a new function called getVehicleHandlingProperty, which simulates the previous syntax of this function.
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
_getVehicleHandling = getVehicleHandling() -- replace the original getVehicleHandling function as _getVehicleHandling
function getVehicleHandlingProperty ( element, property )
function getVehicleHandling ( element, property )
     if isElement ( element ) and getElementType ( element ) == "vehicle" and type ( property ) == "string" then -- Make sure there's a valid vehicle and a property string
     if element and property then -- there is an element and property
        local handlingTable = getVehicleHandling ( element ) -- Get the handling as table and save as handlingTable
        if getElementType ( element ) == "vehicle" then -- if the type of the element is a vehicle
        local value = handlingTable[property] -- Get the value from the table
            local handlingTable = _getVehicleHandling ( element ) -- get the handling as table and save as handlingTable
       
            local value = handlingTable[prop] -- make the value wanted
        if value then -- If there's a value (valid property)
             return value -- return the value wanted!
             return value -- Return it
        else -- If the property is invalid
            return false -- Return failure
         end
         end
     end
     end
   
    return false -- Not an element, not a vehicle or no valid property string. Return failure
end
end
</syntaxhighlight>
</syntaxhighlight>

Revision as of 10:29, 7 May 2011

This function returns a table of the current vehicle handling data.

*Note: This function has not merged into the 1.1 nightly builds yet! It will only work if you have a custom build of the handling branch.

Syntax

table getVehicleHandling ( element theVehicle ) 

Required Arguments

  • theVehicle: The vehicle you wish to get the handling data of.

Returns

Returns a table containing all the handling data, false otherwise. Here a list of valid table properties and what they return:

http://web.archive.org/web/20140223160252/http://projectcerbera.com/gta/sa/tutorials/handling

Property Value Minimum value Maximum value Notes
mass Float 1.0 100000.0
turnMass Float 0.0 1000000.0
dragCoeff Float -200.0 200.0
centerOfMass Table = { [1]=posX, [2]=posY, [3]=posZ } (floats) -10.0 10.0 Get returns a table, set needs a table.
percentSubmerged Integer 1 99999
tractionMultiplier Float -100000.0 100000.0
tractionLoss Float 0.0 100.0
tractionBias Float 0.0 1.0
numberOfGears Integer 1 5
maxVelocity Float 0.1 200000.0
engineAcceleration Float 0.0 100000.0
engineInertia Float -1000.0 1000.0 Inertia of 0 can cause a LSOD. (Unable to divide by zero)
driveType String N/A N/A Use 'rwd', 'fwd' or 'awd'.
engineType String N/A N/A Use 'petrol', 'diesel' or 'electric'.
brakeDeceleration Float 0.1 100000.0
brakeBias Float 0.0 1.0
ABS Boolean true false Has no effect.
steeringLock Float 0.0 360.0
suspensionForceLevel Float 0.0 100.0
suspensionDamping Float 0.0 100.0
suspensionHighSpeedDamping Float 0.0 600.0
suspensionUpperLimit Float -50.0 50.0 Can't be equal to suspensionLowerLimit.
suspensionLowerLimit Float -50.0 50.0 Can't be equal to suspensionUpperLimit.
suspensionFrontRearBias Float 0.0 1.0 Hardcoded maximum is 3.0, but values above 1.0 have no effect.
suspensionAntiDiveMultiplier Float 0.0 30.0
seatOffsetDistance Float -20.0 20.0
collisionDamageMultiplier Float 0.0 10.0
monetary Integer 0 230195200 Get works, set is disabled.
modelFlags Hexadecimal/Decimal N/A N/A Property uses a decimal value, generated by a hexadecimal value. Either use 0x12345678 or tonumber ( "0x12345678" ). See projectcerbera for possible values.
handlingFlags Hexadecimal/Decimal N/A N/A Property uses a decimal value, generated by a hexadecimal value. Either use 0x12345678 or tonumber ( "0x12345678" ). See projectcerbera for possible values.
headLight String N/A N/A Get works, set is disabled. Available values: 'long', 'small', 'big', 'tall'.
tailLight String N/A N/A Get works, set is disabled. Available values: 'long', 'small', 'big', 'tall'.
animGroup Integer ?? ?? Get works, set is disabled due to people not knowing this property was vehicle-based and caused crashes.

Example

Click to collapse [-]
Server & Client

This example creates a new function called getVehicleHandlingProperty, which simulates the previous syntax of this function.

function getVehicleHandlingProperty ( element, property )
    if isElement ( element ) and getElementType ( element ) == "vehicle" and type ( property ) == "string" then -- Make sure there's a valid vehicle and a property string
        local handlingTable = getVehicleHandling ( element ) -- Get the handling as table and save as handlingTable
        local value = handlingTable[property] -- Get the value from the table
        
        if value then -- If there's a value (valid property)
            return value -- Return it
        else -- If the property is invalid
            return false -- Return failure
        end
    end
    
    return false -- Not an element, not a vehicle or no valid property string. Return failure
end

See other vehicle functions