using Godot;
using System;
using System.Diagnostics;

public class TickMaster : Godot.Node
{
    int CurrTick = 0;

    int SupposedTickInt = 0;
    double SupposedTickDecims = 0f;

    bool NextPause = false;

    ulong WatchLastTime = 0;

    bool First = true;

    public override void _PhysicsProcess(float delta)
    {

        ++CurrTick;

        if(NextPause)
        {
            Wait(1000);
            NextPause = false;

            GD.Print("Paused.");
        }

        if(Input.IsActionJustPressed("Test_Key_2"))
        {
            NextPause = true;
            GD.Print("Pausing!");
        }

        if(CurrTick % 60 != 0) return;

        if(First)
        {
            First = false;

            SupposedTickInt = CurrTick;
        }

        GD.Print($"Current tick is {CurrTick}, based on time, it's supposed to be {SupposedTickInt}.{(int)(SupposedTickDecims * 1000)}! {SupposedTickInt - CurrTick} difference!");
        //GD.Print($"Current tick is {SupposedTick}, it's supposed to be {SupposedTickDecims}!");
    }

    long SupposedThreasold = 0;

    public override void _Process(float delta)
    {
        ulong now = OS.GetTicksUsec();

        SupposedTickDecims += ((double)(now - WatchLastTime) / 1000000) * 60;

        WatchLastTime = now;

        while(SupposedTickDecims >= 1f)
        {
            SupposedTickDecims -= 1f;
            ++SupposedTickInt;
        }

        /*if(SupposedThreasold <= SupposedTickInt)
        {
            GD.Print($"Current tick should be {SupposedTickInt}.{(int)(SupposedTickDecims * 1000)}!");
            SupposedThreasold += 60;
        }*/
    }

    void Wait(uint millis)
    {
        ulong now = OS.GetTicksUsec();

        ulong then = now + millis * 1000;

        while(now < then)
        {
            now = OS.GetTicksUsec();
        }
    }
}