--[[
  * Created by MiiMii1205
  * license MIT
--]] -- Variables --
local MOVE_UP_KEY = 20
local MOVE_DOWN_KEY = 44
local CHANGE_SPEED_KEY = 21
local MOVE_LEFT_RIGHT = 30
local MOVE_UP_DOWN = 31
local NOCLIP_TOGGLE_KEY = 289
local NO_CLIP_NORMAL_SPEED = 0.5
local NO_CLIP_FAST_SPEED = 2.5
local ENABLE_NO_CLIP_SOUND = true
local eps = 0.01
local RESSOURCE_NAME = GetCurrentResourceName();
local isNoClipping = false
local speed = NO_CLIP_NORMAL_SPEED
local input = vector3(0, 0, 0)
local previousVelocity = vector3(0, 0, 0)
local breakSpeed = 10.0;
local offset = vector3(0, 0, 1);
local noClippingEntity = playerPed;

local function IsControlAlwaysPressed(inputGroup, control)
    return IsControlPressed(inputGroup, control) or IsDisabledControlPressed(inputGroup, control)
end

local function Lerp(a, b, t)
    return a + (b - a) * t
end

local function IsPedDrivingVehicle(ped, veh)
    return ped == GetPedInVehicleSeat(veh, -1);
end

local function SetInvincible(val, id)
    SetEntityInvincible(id, val)
    return SetPlayerInvincible(id, val)
end

local function MoveInNoClip()
    SetEntityRotation(noClippingEntity, GetGameplayCamRot(0), 0, false)
    local forward, right, up, c = GetEntityMatrix(noClippingEntity);
    previousVelocity = Lerp(previousVelocity,
        (((right * input.x * speed) + (up * -input.z * speed) + (forward * -input.y * speed))), Timestep() * breakSpeed);
    c = c + previousVelocity
    SetEntityCoords(noClippingEntity, c - offset, true, true, true, false)

end

local function SetNoClip(val)
    if (isNoClipping ~= val) then
        local playerPed = PlayerPedId()
        noClippingEntity = playerPed;
        if IsPedInAnyVehicle(playerPed, false) then
            local veh = GetVehiclePedIsIn(playerPed, false);
            if IsPedDrivingVehicle(playerPed, veh) then
                noClippingEntity = veh;
            end
        end
        local isVeh = IsEntityAVehicle(noClippingEntity);
        isNoClipping = val;
        if ENABLE_NO_CLIP_SOUND then
            if isNoClipping then
                PlaySoundFromEntity(-1, "SELECT", playerPed, "HUD_LIQUOR_STORE_SOUNDSET", 0, 0)
            else
                PlaySoundFromEntity(-1, "CANCEL", playerPed, "HUD_LIQUOR_STORE_SOUNDSET", 0, 0)
            end
        end
        TriggerEvent('msgprinter:addMessage',
            ((isNoClipping and ":airplane: No-clip enabled") or ":rock: No-clip disabled"), GetCurrentResourceName());
        SetUserRadioControlEnabled(not isNoClipping);
        if (isNoClipping) then
            TriggerEvent('instructor:add-instruction', {MOVE_LEFT_RIGHT, MOVE_UP_DOWN}, "move", RESSOURCE_NAME);
            TriggerEvent('instructor:add-instruction', {MOVE_UP_KEY, MOVE_DOWN_KEY}, "move up/down", RESSOURCE_NAME);
            TriggerEvent('instructor:add-instruction', {1, 2}, "Turn", RESSOURCE_NAME);
            TriggerEvent('instructor:add-instruction', CHANGE_SPEED_KEY, "(hold) fast mode", RESSOURCE_NAME);
            TriggerEvent('instructor:add-instruction', NOCLIP_TOGGLE_KEY, "Toggle No-clip", RESSOURCE_NAME);
            SetEntityAlpha(noClippingEntity, 51, 0)
            -- Start a No CLip thread
            CreateThread(function()
                local clipped = noClippingEntity
                local pPed = playerPed;
                local isClippedVeh = isVeh;
                -- We start with no-clip mode because of the above if --
                SetInvincible(true, clipped);
                if not isClippedVeh then
                    ClearPedTasksImmediately(pPed)
                end
                while isNoClipping do
                    Wait(0);
                    FreezeEntityPosition(clipped, true);
                    SetEntityCollision(clipped, false, false);
                    SetEntityVisible(clipped, false, false);
                    SetLocalPlayerVisibleLocally(true);
                    SetEntityAlpha(clipped, 51, false)
                    SetEveryoneIgnorePlayer(pPed, true);
                    SetPoliceIgnorePlayer(pPed, true);
                    input = vector3(GetControlNormal(0, MOVE_LEFT_RIGHT), GetControlNormal(0, MOVE_UP_DOWN), (IsControlAlwaysPressed(1, MOVE_UP_KEY) and 1) or ((IsControlAlwaysPressed(1, MOVE_DOWN_KEY) and -1) or 0))
                    speed = ((IsControlAlwaysPressed(1, CHANGE_SPEED_KEY) and NO_CLIP_FAST_SPEED) or NO_CLIP_NORMAL_SPEED) * ((isClippedVeh and 2.75) or 1)
                    MoveInNoClip();
                end
                Wait(0);
                FreezeEntityPosition(clipped, false);
                SetEntityCollision(clipped, true, true);
                SetEntityVisible(clipped, true, false);
                SetLocalPlayerVisibleLocally(true);
                ResetEntityAlpha(clipped);
                SetEveryoneIgnorePlayer(pPed, false);
                SetPoliceIgnorePlayer(pPed, false);
                ResetEntityAlpha(clipped);
                Wait(500);
                if isClippedVeh then
                    while (not IsVehicleOnAllWheels(clipped)) and not isNoClipping do
                        Wait(0);
                    end
                    while not isNoClipping do
                        Wait(0);
                        if IsVehicleOnAllWheels(clipped) then
                            return SetInvincible(false, clipped);
                        end
                    end
                else
                    if (IsPedFalling(clipped) and math.abs(1 - GetEntityHeightAboveGround(clipped)) > eps) then
                        while (IsPedStopped(clipped) or not IsPedFalling(clipped)) and not isNoClipping do
                            Wait(0);
                        end
                    end
                    while not isNoClipping do
                        Wait(0);
                        if (not IsPedFalling(clipped)) and (not IsPedRagdoll(clipped)) then
                            return SetInvincible(false, clipped);
                        end
                    end
                end
            end)
        else
            ResetEntityAlpha(noClippingEntity)
            TriggerEvent('instructor:flush', RESSOURCE_NAME);
        end
    end
end

function ToggleNoClipMode()
    return SetNoClip(not isNoClipping)
end

AddEventHandler('onResourceStop', function(resourceName)
    if resourceName == RESSOURCE_NAME then
        SetNoClip(false);
        FreezeEntityPosition(noClippingEntity, false);
        SetEntityCollision(noClippingEntity, true, true);
        SetEntityVisible(noClippingEntity, true, false);
        SetLocalPlayerVisibleLocally(true);
        ResetEntityAlpha(noClippingEntity);
        SetEveryoneIgnorePlayer(playerPed, false);
        SetPoliceIgnorePlayer(playerPed, false);
        ResetEntityAlpha(noClippingEntity);
        SetInvincible(false, noClippingEntity);
    end
end)

RegisterNetEvent('qb-admin:client:ToggleNoClip', function()
    ToggleNoClipMode()
end)