// -------------------------------------------------- //
// PUBLIC METHODS //
// -------------------------------------------------- //
/// <summary>
/// Try to get a Decal instance from pools.
/// </summary>
/// <param name="decalData">DecalData to get an instance of.</param>
/// <param name="decal">Decal instance out.</param>
public bool TryGetInstance(ScriptableDecal decalData, out Decal decal)
{
DecalPool pool = GetPool(decalData);
ValidatePool(pool);
for (int i = 0; i < pool.decals.Length; i++)
{
if (!pool.decals[i].gameObject.activeSelf)
{
decal = pool.decals[i];
pool.initTimes[i] = Time.realtimeSinceStartup;
return(true);
}
}
decal = null;
return(false);
}
// -------------------------------------------------- //
// INTERNAL METHODS //
// -------------------------------------------------- //
// Initialize a new DecalPool
private DecalPool InitializePool(ScriptableDecal decalData)
{
Decal[] decals = new Decal[decalData.maxInstances];
float[] initTime = new float[decalData.maxInstances];
for (int i = 0; i < decals.Length; i++)
{
Decal decal = DecalSystem.CreateDecalDirect(decalData);
decal.transform.localScale = this.transform.InverseTransformVector(Vector3.one);
decal.transform.SetParent(this.transform);
decals[i] = decal;
decal.gameObject.SetActive(false);
}
DecalPool pool = new DecalPool(decalData, decals, initTime);
pools.Add(pool);
return(pool);
}
// If no available instances in the pool disable the oldest
private void ValidatePool(DecalPool pool)
{
int oldestIndex = 0;
float oldestTime = Mathf.Infinity;
for (int i = 0; i < pool.decals.Length; i++)
{
if (!pool.decals[i].gameObject.activeSelf)
{
return;
}
if (pool.initTimes[i] < oldestTime)
{
oldestTime = pool.initTimes[i];
oldestIndex = i;
}
}
pool.decals[oldestIndex].gameObject.SetActive(false);
}