mta tagging

local tagTextures={
    ["Sons of Anarchy"]="images/Reaper.png"
    ["Tuga Turks"]="images/TugaTurks.png",
    ["Hell soldiers"]="images/Nigger.png",
}

local tags={}
local tagShaders={}
local tagModel=1528
local tagTexture="seville"
local selectedTag=nil
local screenx,screeny=guiGetScreenSize()

local acceptableAmmo={[5]=true,[125]=true,[250]=true,[375]=true,[450]=true}

function selectTag(fileName)
    if fileExists(fileName) then
        selectedTag=fileName
        return true
    end
end

function selectTagCommand(command,index)
    local index=tonumber(index)
    if tagTextures[index]~=nil then
        selectedTag=tagTextures[index]
    end
end
addCommandHandler("tag",selectTagCommand)
selectTag("images/Anarchy.png")
selectTag("images/SoA.png")
selectTag("images/Reaper.png")

function applyShaderToTag(tag)
    if isElement(tag) then
        local correspondingShader=tagShaders[selectedTag]
        if correspondingShader~=nil then
            engineApplyShaderToWorldTexture(correspondingShader,tagTexture,tag)
        end
    end
end

function spraycan(weapon,ammo,ammoInClip,hitX,hitY,hitZ,hitElement)
    if weapon==41 and acceptableAmmo[ammoInClip]==true then
        local player=source
        if hitElement==nil then
            local midX,midY=screenx*0.5,screeny*0.5
            local x,y,z=getWorldFromScreenPosition(midX,midY,3)
            local x2,y2,z2=getWorldFromScreenPosition(midX,midY,6)
            local hit,hx,hy,hz,element=processLineOfSight(x,y,z,x2,y2,z2,true,true,false,true)
            local deltaX,deltaY=hx-x,hy-y
            local x,y=x+deltaX*0.95,y+deltaY*0.95
            if hit==true and x and y and z then
                local rx,ry,rz=getElementRotation(player)
                local rz=rz+83
                local tag=createObject(tagModel,x,y,z,rx,ry,rz)
                applyShaderToTag(tag)
                --local tagMarker=createMarker(x,y,z,"corona")
            end
        end
    end
end
addEventHandler("onClientPlayerWeaponFire",getRootElement(),spraycan)


function setupAllShaders()
    for id,textureName in pairs(tagTextures) do
        local myShader
        myShader, tec = dxCreateShader ( "tagShader.fx" )
        local myTexture = dxCreateTexture (textureName)
        dxSetShaderValue ( myShader, "CUSTOMTEX0", myTexture );
        tagShaders[textureName]=myShader
    end
end
addEventHandler( "onClientResourceStart",resourceRoot,setupAllShaders)