Fixed Version

-- Fuel Script V 0.5 by Sakis25 edited by FaztSquirrel
-- http://sakis25games.blogspot.com

-- Configuration:
-- x,y of gas bar
local gasx = 0.01
local gasy = 0.8

-- width, height of gas bar
local gasw = 0.3
local gash = 0.009

-- refuel key
local refuelKey = Keys.L

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 --     DO NOT EDIT BEYOND HERE     --
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 -- Cause this is no hello world... --
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local GUI = {}
GUI.GUI = {}
GUI.time = 0

local gasStations = {{-735, -945, 30},{-85, -1767, 30},{250, -1275, 30},{732, -1037, 30},{-2110, -333, 30},
{1212, 2657, 30},{2677, 3257, 30},{-2566, 2319, 30},{164, 6591, 30},{2575, 359, 30},
{1702, 6418, 30},{-1803, 803, 30},{-95, 6415, 30},{264, 2609, 30},{50, 2776, 30},
{2537, 2593, 30},{1179, -333, 30},{-526, -1203, 30},{1205, -1397, 30},{2004, 3771, 30},
{620, 270, 30},{-1430, -275, 30},{1686, 4930, 30}}

local refillCar = false
local lowFuel = false
local drawHint = false
local drawHintB = false
local blip = {}
local cars = {}

function GUI.unload()
    for i, coords in pairs(gasStations) do
        UI.REMOVE_BLIP(blip[i])
    end
end

function GUI.init()
  GUI.time = GAMEPLAY.GET_GAME_TIMER()

    for i, coords in pairs(gasStations) do
        blip[i] = UI.ADD_BLIP_FOR_COORD(coords[1],coords[2],coords[3])
        UI.SET_BLIP_SPRITE(blip[i], 361)
        UI.SET_BLIP_AS_SHORT_RANGE(blip[i], true)
    end
end

function GUI.tick()
    local playerPed = PLAYER.PLAYER_PED_ID()
    local player = PLAYER.GET_PLAYER_PED(playerPed)
    local playerExists = ENTITY.DOES_ENTITY_EXIST(playerPed)
    local playerPosition = ENTITY.GET_ENTITY_COORDS(PLAYER.PLAYER_PED_ID(), false)

    if( playerExists ) then
        --refill with jerry can
        if( GAMEPLAY.GET_HASH_KEY(WEAPON.GET_SELECTED_PED_WEAPON(playerPed)) == 2821749192 ) then -- 2821749192 = jerrycan
            for key, value in pairs(cars) do
                if( ENTITY.DOES_ENTITY_EXIST(value.pointer) and value.fuel < 0.14 ) then
                    local coords = ENTITY.GET_ENTITY_COORDS( value.pointer, nil )
                    local coords2 = ENTITY.GET_ENTITY_COORDS( playerPed, nil )
                    if( GAMEPLAY.GET_DISTANCE_BETWEEN_COORDS( coords.x, coords.y, coords.z, coords2.x, coords2.y, coords2.z, false ) < 3 ) then
                        local ammo = WEAPON.GET_AMMO_IN_PED_WEAPON( playerPed, WEAPON.GET_SELECTED_PED_WEAPON(playerPed) )
                        drawHintB = false
                        drawHint = true
                        GUI.drawText()
            GUI.renderGUI()
                        if( get_key_pressed(refuelKey) and ammo > 0 ) then
                            value.fuel = value.fuel + 0.0005
                            WEAPON.SET_PED_AMMO( playerPed, WEAPON.GET_SELECTED_PED_WEAPON(playerPed), ammo-9 )
                        end
                    else
                        drawHint = false
                    end
                end
            end
        end

        --ENTERED CAR
        if( PED.IS_PED_IN_ANY_VEHICLE( playerPed, false ) ) then
            local veh = PED.GET_VEHICLE_PED_IS_IN( playerPed,true )
            local carspeed = ENTITY.GET_ENTITY_SPEED( veh )

      -- If vehicle has changed
      if not cars[1] or cars[1].pointer ~= veh then
        local found = false
        local emptyfound = false

        -- Check if current vehicle is used before
        for key, value in pairs(cars) do
          if value.pointer == veh then
            -- Has been in this car before
            found = true
            local temp = table.remove(cars, key)
            table.insert(cars, 1, temp)
            break
          else
            -- Check if vehicle still exists, if not then make a possible value if there is no other one (really sloppy)
            if not ENTITY.DOES_ENTITY_EXIST(value.pointer) then
              value = {veh, fuel=math.random(6,12)/100}
              emptyfound = true
            end
          end
        end

        if ( not found ) then
          -- There is a possible value from earlier
          if ( emptyfound ) then
            for key, value in pairs(cars) do
              if not ENTITY.DOES_ENTITY_EXIST(value.pointer) then
                table.remove(cars, key)
              end
            end
          else
            -- Remove cars if we are over the 10 cars limit
            if ( #cars > 10 ) then
              table.remove(cars, 1)
            end
          end

          -- Insert current car at pos #1
          table.insert(cars, 1, {pointer=veh, fuel=math.random(6,12)/100})
        end
      end

      -- Does vehicle use fuel?
            if (VEHICLE.IS_THIS_MODEL_A_CAR(ENTITY.GET_ENTITY_MODEL(veh)) or VEHICLE.IS_THIS_MODEL_A_BIKE(ENTITY.GET_ENTITY_MODEL(veh)) or VEHICLE.IS_THIS_MODEL_A_QUADBIKE(ENTITY.GET_ENTITY_MODEL(veh))) then
        -- Fuel usage
                if((GAMEPLAY.GET_GAME_TIMER() - GUI.time)> 200) then
                    if(cars[1].fuel > 0 and cars[1].pointer) then
            local carHealth = VEHICLE.GET_VEHICLE_ENGINE_HEALTH(cars[1].pointer) -- 1000 = max
                        cars[1].fuel = cars[1].fuel - ((carspeed/450000.0) * (900.0/carHealth))
                        GUI.time = GAMEPLAY.GET_GAME_TIMER()
                    else
                        cars[1].fuel = 0
                    end
                end

                GUI.renderGUI()

        -- Has used his horn to refuel
                if (refillCar==true) then
                    if (cars[1].fuel < 0.14) then
                        cars[1].fuel = cars[1].fuel + 0.001
                        VEHICLE.SET_VEHICLE_ENGINE_ON(veh, false,true)
                    else
                        refillCar=false
                        cars[1].fuel = 0.14
                        VEHICLE.SET_VEHICLE_ENGINE_ON(veh, true,true)
                    end
                end

                -- OUT OF GAS
                if (cars[1].fuel == 0) then
                    VEHICLE.SET_VEHICLE_ENGINE_ON(veh, false, true)
                end

                --sound horn to refill gas
                if (carspeed < 1 and refillCar == false) then
                    local coords = ENTITY.GET_ENTITY_COORDS(playerPed, nil);
                    for i, current in pairs(gasStations) do
                        if(GAMEPLAY.GET_DISTANCE_BETWEEN_COORDS(coords.x,coords.y,coords.z,current[1],current[2],coords.z,false) < 12 and drawHintB==false) then
                            --you are close show hint
                            drawHint = false
                            drawHintB = true
                            GUI.drawText()

                            if (cars[1].fuel < 0.14 and drawHintB==true) and get_key_pressed(refuelKey) then
                                refillCar = get_key_pressed(refuelKey)
                            else
                                if (drawHintB==true) then
                                    drawHintB = false
                                end
                            end
                            break
                        else
                            --you are far hide hint
                            if (drawHintB==true) then
                                drawHintB = false
                            end
                        end
                    end
                end
            end
        else
            --EXIT CAR
            lowFuel=false
            drawHintB = false
            refillCar=false
        end
    end
end

function GUI.drawText()
    if(drawHint) then
        UI.SET_TEXT_FONT(0)
        UI.SET_TEXT_PROPORTIONAL(1)
        UI.SET_TEXT_SCALE(0.0, 0.35)
        UI.SET_TEXT_COLOUR(255, 255, 255, 255)
        UI.SET_TEXT_DROPSHADOW(0, 0, 0, 0,255)
        UI.SET_TEXT_EDGE(1, 0, 0, 0, 255)
        UI.SET_TEXT_DROP_SHADOW()
        UI.SET_TEXT_OUTLINE()
        UI._SET_TEXT_ENTRY("STRING")
        UI._ADD_TEXT_COMPONENT_STRING("Hold L (default) to refuel your vehicle.")
        UI._DRAW_TEXT(0.015, 0.015)
    elseif(drawHintB) then
        UI.SET_TEXT_FONT(0)
        UI.SET_TEXT_PROPORTIONAL(1)
        UI.SET_TEXT_SCALE(0.0, 0.35)
        UI.SET_TEXT_COLOUR(255, 255, 255, 255)
        UI.SET_TEXT_DROPSHADOW(0, 0, 0, 0,255)
        UI.SET_TEXT_EDGE(1, 0, 0, 0, 255)
        UI.SET_TEXT_DROP_SHADOW()
        UI.SET_TEXT_OUTLINE()
        UI._SET_TEXT_ENTRY("STRING")
        UI._ADD_TEXT_COMPONENT_STRING("Press L (default) to refuel your vehicle.")
        UI._DRAW_TEXT(0.015, 0.015)
    end
end

function GUI.renderGUI()
    GRAPHICS.DRAW_RECT(gasx+0.07, gasy, 0.14, gash, 0, 0, 0, 60)

    if (cars[1].fuel<0.026) then
        GRAPHICS.DRAW_RECT(gasx+(cars[1].fuel/2), gasy, cars[1].fuel, gash, 220, 20, 20, 255)
        lowFuel=true
    else
        GRAPHICS.DRAW_RECT(gasx+(cars[1].fuel/2), gasy, cars[1].fuel, gash, 156, 181, 42, 255)
        lowFuel=false
    end
end

return GUI