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BetterWaitForSeconds.cs
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BetterWaitForSeconds.cs
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using System.Collections.Generic;
using UnityEngine;
public static class BetterWaitForSeconds
{
private class WaitForSeconds : CustomYieldInstruction
{
private float waitUntil;
public override bool keepWaiting
{
get
{
if( Time.time < waitUntil )
return true;
Pool( this );
return false;
}
}
public void Initialize( float seconds )
{
waitUntil = Time.time + seconds;
}
}
private class WaitForSecondsRealtime : CustomYieldInstruction
{
private float waitUntil;
public override bool keepWaiting
{
get
{
if( Time.realtimeSinceStartup < waitUntil )
return true;
Pool( this );
return false;
}
}
public void Initialize( float seconds )
{
waitUntil = Time.realtimeSinceStartup + seconds;
}
}
private const int POOL_INITIAL_SIZE = 4;
private static readonly Stack<WaitForSeconds> waitForSecondsPool;
private static readonly Stack<WaitForSecondsRealtime> waitForSecondsRealtimePool;
static BetterWaitForSeconds()
{
waitForSecondsPool = new Stack<WaitForSeconds>( POOL_INITIAL_SIZE );
waitForSecondsRealtimePool = new Stack<WaitForSecondsRealtime>( POOL_INITIAL_SIZE );
for( int i = 0; i < POOL_INITIAL_SIZE; i++ )
{
waitForSecondsPool.Push( new WaitForSeconds() );
waitForSecondsRealtimePool.Push( new WaitForSecondsRealtime() );
}
}
public static CustomYieldInstruction Wait( float seconds )
{
WaitForSeconds instance;
if( waitForSecondsPool.Count > 0 )
instance = waitForSecondsPool.Pop();
else
instance = new WaitForSeconds();
instance.Initialize( seconds );
return instance;
}
public static CustomYieldInstruction WaitRealtime( float seconds )
{
WaitForSecondsRealtime instance;
if( waitForSecondsRealtimePool.Count > 0 )
instance = waitForSecondsRealtimePool.Pop();
else
instance = new WaitForSecondsRealtime();
instance.Initialize( seconds );
return instance;
}
private static void Pool( WaitForSeconds instance )
{
waitForSecondsPool.Push( instance );
}
private static void Pool( WaitForSecondsRealtime instance )
{
waitForSecondsRealtimePool.Push( instance );
}
}
/*
How To
yield return BetterWaitForSeconds.Wait( 1f );
// or
yield return BetterWaitForSeconds.WaitRealtime( 1f );
*/