--Below is the actual shop script that creates the markers, the blips, and the gui. this can be easily adapted to other script if you read the comments i have left. simply replace all instances of the word "surf" with whatever you want your shop to be named.

cost = 2000 --The price of whatever the player is getting

--below is the initial setup
addEventHandler ( "onClientResourceStart", getResourceRootElement(getThisResource()),
	function()
		local theMarker = createMarker ( 1183.72, -1258.08, 14.1, "cylinder", 1, 255, 255, 255, 170 )
		setElementData ( theMarker, "purpose", "surf_shop" )
		setElementData ( theblip, "purpose", "surf_shop_blip" )

		
--the gui that allows players to say yes or no after entering a marker
		surf_shop_Window = {}
		surf_shop_Button = {}
		surf_shop_Label = {}
		surf_shop_Window1 = guiCreateWindow(0.35,0.45,0.3162,0.1717,"Skate",true) --the title of the window i sset here
		guiWindowSetSizable(surf_shop_Window1,false)
		surf_shop_YesButton = guiCreateButton(0.087,0.5631,0.3676,0.3107,"Sim",true,surf_shop_Window1)
		surf_shop_NoButton = guiCreateButton(0.5375,0.5534,0.3676,0.3107,"Nao",true,surf_shop_Window1)
		surf_shop_Label1 = guiCreateLabel(0.17,0.2524,0.668,0.2233,"Quer Comprar Um Skate Por R$ : " .. cost .." ?",true,surf_shop_Window1) --the question you ask the player, this one include the price in the question.
		guiLabelSetVerticalAlign(surf_shop_Label1,"top")
		guiLabelSetHorizontalAlign(surf_shop_Label1,"left",false)
		guiSetVisible ( surf_shop_Window1, false )
		addEventHandler ( "onClientGUIClick", surf_shop_YesButton, surf_shop_Start)
		addEventHandler ( "onClientGUIClick", surf_shop_NoButton, surf_shop_Cancel)
		
--this sets the blips to be streamed out using the blipstreamer resource. (as long as blipstreamer is on, so you might want to include it in the meta)
		local blips = getElementsByType ( "blip" )
		for theKey,theBlip in ipairs(blips) do
			if (getElementData ( theBlip, "purpose" ) == "surf_shop_blip" ) then
				call(getResourceFromName"blipstreamer","setBlipStreamable",theBlip, true, 90 )
			end
		end
	end
)

--this function triggers the gui to open when a player walks into the marker
function surf_shopMarkerHit ( hitPlayer, matchingDimension )
	if (hitPlayer == getLocalPlayer()) and (isPedOnGround ( getLocalPlayer())) then
		if (getElementData ( source, "purpose" ) == "surf_shop" ) then
			if getPlayerMoney(getLocalPlayer()) >= cost then
				guiSetVisible ( surf_shop_Window1, true )
				guiBringToFront ( surf_shop_Window1 )
				showCursor ( true )	
			end
		end
	end
end
addEventHandler ( "onClientMarkerHit", getRootElement(), surf_shopMarkerHit )

--this function removes the gui if a player leaevs the marker
function surf_shopMarkerLeave ( hitPlayer, matchingDimension )
	if (hitPlayer == getLocalPlayer()) then
		if (getElementData ( source, "purpose" ) == "surf_shop" ) then
			guiSetVisible ( surf_shop_Window1, false )
			showCursor ( false )
		end
	end
end
addEventHandler ( "onClientMarkerLeave", getRootElement(), surf_shopMarkerLeave )

--this function gets triggered if a player clicks "no"
function surf_shop_Cancel ()
	guiSetVisible ( surf_shop_Window1, false )
	showCursor ( false )
end

--this is the function that gets triggered if the player clicks "yes"
function surf_shop_Start ()
	guiSetVisible ( surf_shop_Window1, false )
	showCursor ( false )
	takePlayerMoney ( cost )
--alter anything below this line to do whatever you want to happen when yes is clicked, for this scripts purpose, i trigger a server event to spawn a surfboard
	triggerServerEvent ( "onSurf_shopStart", getLocalPlayer(), getLocalPlayer() ) 
end













--EVERYTHING BELOW HERE IS STRICTLY RELATED TO THE SURFBOARD, AND DOES NOT NEED TO BE USED IN YOUR OWN SCRIPT AT ALL

addEvent("surfboardcreated", true )
function fixboard(surfboard)
	setElementCollisionsEnabled(surfboard, false)
end
addEventHandler("surfboardcreated", getRootElement(), fixboard)


function surfenter(thePlayer, seat)
	if thePlayer == getLocalPlayer() then
		if (getElementData( source, "purpose" ) == "surfboard") then
			setVehicleOverrideLights ( source, 1 )
			showPlayerHudComponent ( "vehicle_name", false )
			setWorldSpecialPropertyEnabled ( "hovercars", false )-- LETS SURFBOARDS GO ON WATER
			setWorldSpecialPropertyEnabled ( "aircars", false ) -- LETS SURFBOARDS FLY
		else
			setVehicleOverrideLights ( source, 1 )
			showPlayerHudComponent ( "vehicle_name", true )
			setWorldSpecialPropertyEnabled ( "hovercars", false ) 
			setWorldSpecialPropertyEnabled ( "aircars", false )
		end
	end
end
addEventHandler("onClientVehicleEnter", getRootElement(), surfenter)

function surfexit(thePlayer, seat)
	if thePlayer == getLocalPlayer() and (getElementData( source, "purpose" ) == "surfboard") then
		setWorldSpecialPropertyEnabled ( "hovercars", false )
		setWorldSpecialPropertyEnabled ( "aircars", false )
		setVehicleOverrideLights ( source, 0 )
		showPlayerHudComponent ( "vehicle_name", true )
	end
end
addEventHandler("onClientVehicleExit", getRootElement(), surfexit)

addEvent("surfboardwipeout", true )
function fixboard(theplayer)
	if thePlayer == getLocalPlayer() then
		setWorldSpecialPropertyEnabled ( "hovercars", false )
		setWorldSpecialPropertyEnabled ( "aircars", false )
		showPlayerHudComponent ( "vehicle_name", true )
	end
end
addEventHandler("surfboardwipeout", getRootElement(), fixboard)