Cross roads visible on Radar

[h4x7o0r]

Hello, I've seen an useful radar resource on a cross server. The particularity of this radar is that u can see the cross roads (vgsh...).

Here is a picture to see exactly why am i looking for :

[Jaysds1]

Sorry, but did you check here: community.multitheftauto.com

[TwiX!]

getElementsByType 

Type object

Then you can replace and draw image (this object)

dxDrawImage 

or

dxDrawLine 

[h4x7o0r]

@jaysds1 : Yeah I've checked community resources and haven't found any to display the roads and so on.

@TwiX! : Thank you for your reply, I've seen the docs of

getElementsByType 

but haven't got the right answer .

local objects = getElementsByType ( "object" )  

But i don't know how to retrieve a specific id. For example. The cross road has 8558 id. Should i use getElementModel ?

function radar ( targetElem ) 
    if ( getElementType ( targetElem ) == "object" ) and ( getElementModel ( targetElem ) == 8558) then 
        ... 
    end 
  

[Jaysds1]

ya, that code is correct

[h4x7o0r]

Thank you for your reply, good is correct but how can i continue ? for example on the radar to have the road visible on the radar ?

All the best.

[Jaysds1]

Do you have the model ID for those?

if you do, then you could use:

dxDrawLine 

for the road.

[h4x7o0r]

yes i'm having .img of the road that needs to be replaced on the map and also the id for each one of road, but i don't know how can i modify the dxDrawLine to fit my requirements.

[denny199]

You need to calculate the radar first. because it's a circle

[TwiX!]

yes i'm having .img of the road that needs to be replaced on the map and also the id for each one of road, but i don't know how can i modify the dxDrawLine to fit my requirements.

you can get X,Y,Z from object, and draw line

[h4x7o0r]

Thank you very much for your reply, sincerly i don't know how to calculate or what should i do

LE : I wanna have all roads visible on the radar not only one.

[Jaysds1]

try using these:

    getWorldFromScreenPosition 
    getScreenFromWorldPosition 

[h4x7o0r]

Thank you for reply, I've just read about those 2 functions but i think it's not what I am looking for because i want that every road (every object) that has the desire id to be positioned on the radar. I can't use x,y,z for each road by itself.

LE: I've tried to figure it out how can i create the script but i think all it's a mess

I've even found a resource for "custom blips" https://community.multitheftauto.com/index.php?p= ... ils&id=960 that has some exported functions.

Here's what i've tried :

addEventHandler ( "onClientResourceStart", getResourceRootElement(getThisResource()), 
 function () 
  if ( getElementType ( targetElem ) == "object" ) and ( getElementModel ( targetElem ) == 8558) then 
    local x, y, z = getElementPosition(targetElem) 
    local sx, sy = getScreenFromWorldPosition(x, y, z+3) 
    exports.customblips:createCustomBlip ( x,y, 160, 32, "road.png" ) 
     
    else  
    exports.customblips:destroyCustomBlip ( x,y, 160, 32, "road.png" ) 
    end 

[h4x7o0r]

Bump.

[h4x7o0r]

Anyone ? I really need this script thanks in advance for any help.

[TwiX!]

we gave you a full response

[h4x7o0r]

I've read about what u've suggested but couldn't do it by myself that's why i've posted my *fail*script to see what should i need to change. I still don't know how to make visible on the radar my image.

[Sohatoch]

First of all, calculate the radar (TwiX! just suggested that before) because it's a circle.

[TwiX!]

local rObjects = { [3458] = true,[8558] = true }; -- Radar objects 
  
function getObjectsInMyDistance() 
    rObjectsTabele = {}; 
    local pX,pY,pZ = getElementPosition(localPlayer); 
    if not pX or not pY or not pZ then return end 
    for _,object in ipairs(getElementsByType("object")) do 
        local id = getElementModel(object); 
        if rObjects[id] then 
            local eX,eY,eZ = getElementPosition(object); 
            if not eX or not eY or not eZ then return end 
            local distance = getDistanceBetweenPoints2D(pX,pY,eX,eY); 
            if distance < 180 then  
                table.insert(rObjectsTabele,object); 
            end 
        end 
    end 
    return rObjectsTabele; 
end 
  
addEventHandler("onClientRender",getRootElement(),  
function() 
    local pX,pY,pZ = getElementPosition(localPlayer); 
    local cX,cY,_,tX,tY = getCameraMatrix(); 
    local n = findRotation(cX,cY,tX,tY); 
    for _,object in ipairs(getObjectsInMyDistance()) do 
        local oX,oY,oZ = getElementRotation(object); 
        local id = getElementModel(object); 
        local eX,eY,eZ = getElementPosition(object); 
        if id == 3458 then 
            img = "yourImage.png"; 
            --Here you can set rotation for object 
        elseif id == 8558 then 
            img = "YouImageForThisID.png"; 
            --Here you can set rotation for object 
        end 
        dxDrawImage(yourX,yourY,yourWidth,yourHeight,img,n-oZ,0,0,tocolor(255,255,255,255)); 
        --Or dxDrawLine 
    end 
end 
); 
  
function findRotation(x1,y1,x2,y2) 
    local t = -math.deg(math.atan2(x2-x1,y2-y1)); 
    if t < 0 then t = t + 360; end 
    return t 
end 

something like this

don't forget to change "yourX","yourY","yourWidth","yourHeight"

[h4x7o0r]

Thank you so much for your effort, u made my day.

There are some errors :

LINE 37: Bad argument @ "dxDrawImage" [Expected number at argument 1, got nil]

[TwiX!]

[don't forget to change "yourX","yourY","yourWidth","yourHeight"]

i not will make all script for you

[h4x7o0r]

I've used some values, like : 200 20 160 32. (didn't let that unmodified)

Should I need another function to retrieve this ?

Thank you for all and still sorry for bothering.

All the best.

[TwiX!]

I've used some values, like : 200 20 160 32. (didn't let that unmodified)

why?

you need there object x,y,z,rx,ry,z

[h4x7o0r]

Those are values that i can find somewhere .. or do i need another function to get them all ? This is kinda ambiguous. Feel sorry for bothering you with my misunderstood and also thanks for your help.

[TwiX!]

Those are values that i can find somewhere .. or do i need another function to get them all ? This is kinda ambiguous. Feel sorry for bothering you with my misunderstood and also thanks for your help.

you have everything to do it

learn lua here pls:

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

or other's lua tutorials