Gravity Problem

[Agon]

function playerOptions() 
    setPedCanBeKnockedOffBike(source,false) 
    addEventHandler("onClientPlayerVehicleEnter",source,enableGravityWheels) 
    addEventHandler("onClientPlayerVehicleExit",source,disableGravityWheels) 
end 
  
function checkCarWheels() 
if isVehicleOnGround(car) == true then changeGravity() 
else return end 
end 
  
  
function changeGravity() 
setVehicleGravity(car,underx - x,undery - y,underz - z) 
end 
  
function disableGravityWheels() 
setVehicleGravity(car, 0, 0, -1) 
end 
  
function enableGravityWheels() 
local car = getPedOccupiedVehicle(source) 
local x,y,z = getElementPosition(car) 
local underX,underY,underZ = getVehicleUnderGravity(car) 
if (isVehicleOnGround(car) == false) and if (isPedInVehicle(source) == false) then return end 
else setTimer(checkCarWheels, 1000, 0)   
end 
end 
  
function getVehicleUnderGravity(element) 
    local matrix = getElementMatrix (element) 
    local offX = 0 * matrix[1][1] + 0 * matrix[2][1] - 1 * matrix[3][1] + matrix[4][1] 
    local offY = 0 * matrix[1][2] + 0 * matrix[2][2] - 1 * matrix[3][2] + matrix[4][2] 
    local offZ = 0 * matrix[1][3] + 0 * matrix[2][3] - 1 * matrix[3][3] + matrix[4][3] 
    return offX,offY,offZ 
end 
  
addCommandHandler("gravity",enableGravityWheels) 
addEventHandler("onClientResourceStart",getResourceRootElement(getThisResource()),playerOptions) 

I wanted to make a gravity script (with some help of resources) i can enable it (but doesn't work ) but don't know how to disable it again. should i use "addCommandHandler("gravity",disableGravityWheels)" ?

[Kenix]

Tested.

  
local timer,state 
local underX,underY,underZ 
local x,y,z 
  
function playerOptions( ) 
    setPedCanBeKnockedOffBike( localPlayer,false ) 
    addEventHandler( "onClientPlayerVehicleEnter",localPlayer,enableGravityWheels ) 
    addEventHandler( "onClientPlayerVehicleExit",localPlayer,disableGravityWheels ) 
end 
  
function checkCarWheels( vehicle ) 
    if isVehicleOnGround( vehicle ) then  
        changeGravity( vehicle ) 
    end 
end 
  
  
function changeGravity( vehicle ) 
    setVehicleGravity( vehicle,underX - x,underY - y,underZ - z ) 
end 
  
function disableGravityWheels( vehicle ) 
    setVehicleGravity( vehicle, 0, 0, -1 ) 
end 
  
function enableGravityWheels( vehicle ) 
    local vehicle 
    if not isElement( vehicle ) then vehicle = getPedOccupiedVehicle( localPlayer ) end 
    x,y,z = getElementPosition( vehicle ) 
    underX,underY,underZ = getVehicleUnderGravity( vehicle ) 
    if isVehicleOnGround( vehicle ) and isPedInVehicle( source or localPlayer ) then 
        if isTimer( timer ) then killTimer( timer ) end 
        timer = setTimer( checkCarWheels, 1000, 0,vehicle )   
    end 
end 
  
function getVehicleUnderGravity( element ) 
    local matrix = getElementMatrix ( element ) 
    local offX = 0 * matrix[1][1] + 0 * matrix[2][1] - 1 * matrix[3][1] + matrix[4][1] 
    local offY = 0 * matrix[1][2] + 0 * matrix[2][2] - 1 * matrix[3][2] + matrix[4][2] 
    local offZ = 0 * matrix[1][3] + 0 * matrix[2][3] - 1 * matrix[3][3] + matrix[4][3] 
    return offX,offY,offZ 
end 
addCommandHandler( "gravity",enableGravityWheels ) 
addEventHandler( "onClientResourceStart",resourceRoot,playerOptions ) 

or maybe you need this?

local state  
addCommandHandler( "gravity", 
    function( ) 
        local veh = getPedOccupiedVehicle( localPlayer ) 
        if veh then 
            state = not state 
            if state then 
                setVehicleGravity( veh, 0, 0, 0 ) 
            else 
                setVehicleGravity( veh, 0, 0, -1 ) 
            end 
        end  
    end 
) 

/debugscript 3 use.

You need learn lua http://www.lua.org/manual/5.1/

And this https://wiki.multitheftauto.com/wiki/Scr ... troduction

Updated again.

[Agon]

i used /debugscript 3 but i didn't get any error and i can't drive on walls

btw your second script may be good but i want to check if the vehicle's wheels on the ground. i saw some resources which didn't check that and it makes you fly sometimes...

[unknooooown]

i used /debugscript 3 but i didn't get any error and i can't drive on walls

btw your second script may be good but i want to check if the vehicle's wheels on the ground. i saw some resources which didn't check that and it makes you fly sometimes...

Post your XML please.

[Agon]

<meta> 
<info author="Agon" type="script" version="1.0" name="mygrav" description="change gravity"/> 
<script src="script.lua" type="client"/> 
</meta> 

[Kenix]

https://community.multitheftauto.com/index.php?p= ... ils&id=329

https://community.multitheftauto.com/index.php?p= ... ls&id=2458

[Agon]

I know that resources but they make me fly wall to wall and sometimes to sky... and that's annoying. i want to make it with checking if vehicle is touching a wall or something else. if it doesn't touch (i mean if it is on the air), it won't perform gravity change.. hope you understand me

[arezu]

I know that resources but they make me fly wall to wall and sometimes to sky... and that's annoying. i want to make it with checking if vehicle is touching a wall or something else. if it doesn't touch (i mean if it is on the air), it won't perform gravity change.. hope you understand me

isVehicleOnGround doesn't work with all vehicles, and wont work on non-flat ground (walls, loops etc).

[Agon]

any wiki function that checks if vehicle is touching somewhere or something?

[arezu]

any wiki function that checks if vehicle is touching somewhere or something?

you can use getElementBoundingBox, getElementMatrix and isLineOfSightClear.. i did something like that in my "jump" script