Commit graph

16 commits

Author SHA1 Message Date
Kamron Batman
8e01db8555
fix: Fixes random bias & Adds back champion arties for UOML (#1235)
* Fixes RNG bias, we should never do `Utility.RandomDouble() <=`
* Adds back champion artifacts behind UOML flag.
2022-11-09 16:33:27 -08:00
Kamron Batman
43e7fe29c2
feat: Adds Monster Abilities (#1179)
* Adds ability to create monster abilities
* Adds Fire/Cold/Chaos Breath
* Adds Grasping Claw
* Adds Summon Skeletons & Summon Undead w/ Polymorph
2022-10-01 21:09:36 -07:00
Kamron Batman
a4168dc219
fix: Fixes pooled timer detach (#1115)
- [X] Fixes timers not returning on detach
2022-07-14 11:14:37 -07:00
Kamron Batman
bfbe2a6512
fix: Updates professions & new player gargish equipment (#819)
* Now reads Prof.txt to get the professions
* The templated professions are based on profession `TrueName`
* Adds missing starting equipment
* Implements gargish starting equipment
* Consolidates some of the code
* Moves TC stuff to the TC file.
* Fixes some starting equipment that was wrong.

Note:
* Implementing the original T2A professions is possible on the client side, but requires moving the old clilocs to the current clilocs file. In the current file the entries are blank.
* Using the original LBR professions (they match AOS but without necromancy/chivalry) is kind of confusing because the profession indexes are ripped out of the UOTD/UOR ones and have non-sequential indexes. This will probably cause confusion and people will get no templated items when they select the wrong profession.
2021-10-16 10:48:58 -07:00
Kamron Batman
dbd4d6f13f
fix: Various code cleanup (#756) 2021-09-03 19:41:12 -07:00
Kamron Batman
9b554f69b0
feat(timers): Adds timer pooling, fixes timer related bugs, and changes timer api (#667)
### Changes/Fixes:
* Adds timer pooling.
* Allows pool to be configurable in ModernUO.json
* Pool replenishes itself asynchronously if depleted.
* Fixes an issue with barkeeps and town criers
* Fixes an issue with incognito buff icons not being removed
* Fixes an issue with polymorph name mod not being removed
* Fixes several places where timers go on forever even after an object is deleted, keeping a reference (memory leak)
* Eliminates the timer for MiningCart altogether.
* Deletes `AcidSlime` since it is a duplicate of `PoolOfAcid`
* Fixes HonorableExecution and standardizes the code for other Bushido moves.

## Changes to the Timer API:
```cs
public class Timer
{
  // Creates a timer that will be returned to the pool once execution stops.
  public static void StartTimer(Action callback);
  public static void StartTimer(TimeSpan delay, Action callback);
  public static void StartTimer(TimeSpan delay, TimeSpan interval, Action callback);
  public static void StartTimer(TimeSpan interval, int count, Action callback);
  public static void StartTimer(TimeSpan delay, TimeSpan interval, int count, Action callback);

  // Creates a timer and returns a token for more control. Requires manual cancellation in order for the timer to be returned to the pool.
  // If the token is dereferenced, the timer will be dereferenced too. While not returning a timer to the pool is not considered hazardous, it does defeat the purpose of pooled timers.
  public static void StartTimer(Action callback, out TimerExecutionToken token);
  public static void StartTimer(TimeSpan delay, Action callback, out TimerExecutionToken token);
  public static void StartTimer(TimeSpan delay, TimeSpan interval, Action callback, out TimerExecutionToken token);
  public static void StartTimer(TimeSpan interval, int count, Action callback, out TimerExecutionToken token);
  public static void StartTimer(TimeSpan delay, TimeSpan interval, int count, Action callback, out TimerExecutionToken token);

  // If you aren't sure how to use the API above, or you don't care about performance, then you can use the old RunUO Timer.DelayCall
  public static DelayCallTimer DelayCall(Action callback);
  public static DelayCallTimer DelayCall(TimeSpan delay, Action callback);
  public static DelayCallTimer DelayCall(TimeSpan delay, TimeSpan interval, Action callback);
  public static DelayCallTimer DelayCall(TimeSpan interval, int count, Action callback);
  public static DelayCallTimer DelayCall(TimeSpan delay, TimeSpan interval, int count, Action callback);
}

public struct TimerExecutionToken
{
  public bool Running { get; }
  public int Index { get; }
  public int RemainingCount { get; }
  public DateTime Next { get; }
}
```

## When to use `TimerExecutionToken`?
Use tokens when you want to gain the performance benefit of using a pooled timer, but you need one of the following:
* Access to the next time the timer will tick:`token.Next`
* Access to which interval, how many intervals there are, or how many are remaining: `token.Index`, `token.Count`, and `token.RemainingCount`
* Stop a timer manually.
* Determine if the timer is running: `timer.Running`
* See notes below about requirements for using tokens!

## Notes about using the TimerExecutionToken:
When you opt-in to receive a token, you must call `Cancel()` to return the timer. This can be done inside of the callback, or outside of the callback at any time.
If this is not called and your timer is an infinite interval, then you will create a potential memory leak, or null pointer exception in your callback.
If the timer ends and is stopped, but cancel is not called, then the timer will never return to the pool and stay referenced until the token is deleted or cancel is called. (Memory leak)

## Is this thread safe?
No. The ModernUO timer system is not thread safe at all. If you require a thread safe timer system, contact me and I'll help adapt this system. Keep in mind that there is a massive performance hit to make this thread safe when there are literally no use cases for it.

If you need to synchronize execution, meaning you want to execute code from another thread on the core thread. Let's say you have a discord bot that is pushing commands to the game server. Then use `EventLoopContext.Post(SendOrPostCallback callback, object state);`.
2021-08-07 14:33:35 -07:00
Kamron Batman
410b18ceca
fix(linq): Removes linq and fixes fishing error (#674) 2021-08-04 22:24:38 -07:00
Kamron Batman
75c1b32513
fix(core): NPE in Cycles per second (#331)
- [X] Fixes an edge case where the cycle index goes negative and crashes
- [X] Fixes average CPS calculation
- [X] Fixes issue with logout delay
- [X] Bumps release version
2020-11-30 23:12:16 -08:00
Kamron Batman
351611a23a
Updates movement packets & Fastwalk (#324)
- [X] Updates Movement packets
- [X] Adds OSI fastwalk packets. These aren't used on OSi anymore.
- [X] Adds new movement handling, but looks like the client doesn't use it. (Also leaving the 0x4000 Character List Flag off)
- [X] Adds time sync request handler, but also looks like the client doesn't use it.
- [X] Adds time sync response for time sync, just in case, but it isn't used, so not sure about the arguments.
- [X] Reimplements RunUO's fastwalk to use a circular array on the netstate instead of every mobile
- [X] Removes ClearFastwalkStack from RunUO implementation. This shouldn't be needed anymore

Changed fastwalk settings:
```cs
        public static int WalkFootDelay { get; set; } = 440;
        public static int RunFootDelay { get; set; } = 220;
        public static int WalkMountDelay { get; set; } = 220;
        public static int RunMountDelay { get; set; } = 110;

        public static bool EnableFastwalkPrevention { get; set; } = true;
        public static AccessLevel FastwalkExemptionLevel { get; set; } = AccessLevel.Counselor;

        // If this is changed during runtime, then the steps array needs resizing.
        public static int MaxSteps { get; private set; } = 4;
```

modernuo.json
```json
{
  "settings": {
    "movement.delay.runFoot": "220",
    "movement.delay.runMount": "110",
    "movement.delay.walkFoot": "440",
    "movement.delay.walkMount": "220",
    "movement.enableFastWalkPrevention": "True",
    "movement.fastwalkExemptionLevel": "Counselor",
    "movement.maxSteps": "4"
  }
}
```

Notes about OSI fastwalk:
While it does work, I can't find a benefit in using it because of the variable speeds. If players moved at a single speed then we could refill the stack every X milliseconds with 6 keys and use a naive token bucket implementation.
Unfortunately variable speeds mount/run/walk/etc means we would have to use a leaky bucket algorithm.
If we are using a leaky bucket algorithm with a variable leak, then we don't need to send tokens because we are already tracking it on the server side.

ModernUO vs OSI Fastwalk:
When the fastwalk was implemented on OSI, it used up to 6 tokens. These tokens were probably distributed every 600-750 milliseconds. To get the same effect, the new fastwalk settings might need to be adjusted. I would tweak them and feel free to let me know what worked for you!

Bumps release version
2020-11-26 23:53:47 -08:00
Kamron Batman
525cda5413
Cleanup & Fixes for .NET 5 (#309)
- [X] Fixes several bugs
- [X] Updates more ordinal issues
- [X] Cleans up the code a bit
- [X] Turns classes static that should have been
- [X] Changes TcpServer.Instances to a HashSet

Bumps release version
2020-11-15 10:03:50 -08:00
Kamron Batman
4d6e584b6c
Removes literal variables (#257) 2020-09-18 18:41:26 -07:00
Kamron Batman
8149620b0c
Fixes brace style (#248) 2020-09-13 21:49:46 -07:00
Kamron Batman
ad3775c4d7
Formats UO Content (#201) 2020-08-27 18:30:38 -07:00
Kamron Batman
1f651992d7
Updates formatting rules (#199) 2020-08-25 18:00:51 -07:00
Kamron Batman
0926b5abaa
Code cleanup (#195) 2020-08-16 21:46:54 -07:00
Kamron Batman
8ec166bcd0
Adds assemblies config, fixes crash bugs. (#134) 2020-05-09 12:55:56 -07:00