CoroutineChain

Unity3d, Coroutine, scripting

AssetStore

Install

Use the unity package manager.(https://github.com/geniikw/CoroutineChain.git)

Intro

• Easy to read coroutine code.
• Define callback simply
• Call coroutine at outside MonoBehavour.

In my experience, generally coroutine code can be classified into two kinds.

One is a functional block. For example

IEnumerator OneFunction(){
  //do single task.
}

Other is a squencial code. It consist of functional block coroutines.

IEnumerator Sequncial(){
  yield return StartCoroutine(A());
  yield return StartCoroutine(B());
  yield return StartCoroutine(C());
}

It is a small asset that makes it possible to call Unity's coroutines while chaining them.

so you don't need to write seuqencial block. just chain it in call block.

public void Start(){
    //same as above.
    CoroutineChain.Start
        .Play(A())
        .Play(B())
        .Play(C());
    //or
    CoroutineChain.Start
        .Sequencial(A(),B(),C());
}

AssetStore

Reference

Basic

all block wait previous block.

void Start(){
  this.StartChain() // or CoroutineChain.Start.Play ...
      .Play(Coroutine())
      .Sequencial(A(),B(),C()) // play one by one.
      .Parallel(A(),B(),C()) // play same time.
      .Wait(1f)
      .Log("Complete!");
      .Call(()=>Callback());
}

Play(IEnumerator coroutine)

play one coroutine. it is same as StartCoroutine().

void Start(){
    //Normal
    StartCoroutine(A());
    //CoroutineChain
    this.StartChain()
        .Play(A());
}

Wait(float sec)

void Start(){
    this.StartChain()
        .Wait(1)
        .Log("end");
    //1sec later debug log show out.
}

Parallel(IEnumerator[] routines)

all coroutine start at same time

void Start(){
    ///Normal.
    StartCoroutine(A());
    StartCoroutine(B());
    StartCoroutine(C());    
    
    //CoroutineChain, Less Character!
    this.StartChain()
        .Parallel(A(),B(),C());
}

Sequential(IEnemerator[] routines)

it same as continuous Play block.

IEnumerator Start(){///CoroutineStartBlock.
    ///Normal.
    yield return StartCoroutine(A());
    yield return StartCoroutine(B());
    yield return StartCoroutine(C());    
    
    //CoroutineChain, Less Character!
    yield return this.StartChain()
        .Sequencial(A(),B(),C());
}

Log(string log, ELogTtype type = ELogType.NORMAL)

log block is not coroutine.

IEnumerator Start(){///CoroutineStartBlock.
    ///Normal.
    yield return StartCoroutine(A());
    yield return StartCoroutine(A());
    yield return StartCoroutine(A());
    Debug.Log(A, B and C all end!!");
    
    //CoroutineChain
    yield return this.StartChain()
        .Sequencial(A(),B(),C())
        .Log("A, B and C all end!!");
}

Call(Action)

you can simply setup callback.

this is Parallel block using Call() as coroutine callback.

IEnumerator Parallel(IEnumerator[] routines)
{
    var all = 0;
    foreach (var r in routines)
        all++;

    var c = 0;
    foreach (var r in routines)
        player.StartChain()
            .Play(r)
            .Call(() => c++);

    while (c < all)
        yield return null;
}

WaitFor(Func)

wait for a specific condition.

void Start(){
  CoroutineChain.Start
          .WaitFor(()=>m_timer > 3f)
          .Log("Complete");
}

float m_timer = 0f;

void Update(){
  m_timer += Time.deltaTime;
}