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pool messages

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This commit is contained in:
in0finite 2020-06-06 20:03:26 +02:00
parent 7623b3ce29
commit 81df1bb651
1 changed files with 39 additions and 7 deletions
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46
Assets/Scripts/Utilities/UI/OnScreenMessageManager.cs
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@ -1,5 +1,6 @@
using UnityEngine;
using System.Collections.Generic;
using UnityEngine.UI;
namespace SanAndreasUnity.Utilities
{
@ -16,6 +17,9 @@ namespace SanAndreasUnity.Utilities
public int messagePoolSize = 10;
private readonly Queue<OnScreenMessage> m_pooledOnScreenMessages = new Queue<OnScreenMessage>();
public int NumPooledMessages => m_pooledOnScreenMessages.Count;
public static OnScreenMessageManager Instance { get; private set; }
@ -28,15 +32,15 @@ namespace SanAndreasUnity.Utilities
void Update()
{
bool hasDeadMessages = false;
bool hasMessagesToRemove = false;
for (int i = 0; i < m_onScreenMessages.Count; i++)
{
var msg = m_onScreenMessages[i];
if (null == msg)
if (null == msg || !msg.gameObject.activeSelf)
{
hasDeadMessages = true;
hasMessagesToRemove = true;
continue;
}
@ -46,21 +50,49 @@ namespace SanAndreasUnity.Utilities
msg.timeLeft -= Time.deltaTime;
if (msg.timeLeft <= 0)
{
Object.Destroy(msg.gameObject);
// try to pool this message
if (m_pooledOnScreenMessages.Count >= this.messagePoolSize)
{
// can't pool => destroy it
Object.Destroy(msg.gameObject);
}
else
{
hasMessagesToRemove = true;
msg.gameObject.SetActive(false);
m_pooledOnScreenMessages.Enqueue(msg);
}
}
}
if (hasDeadMessages)
if (hasMessagesToRemove)
{
// only remove dead objects if there are any, because this method allocates memory
m_onScreenMessages.RemoveDeadObjects();
m_onScreenMessages.RemoveAll(msg => null == msg || !msg.gameObject.activeSelf);
}
}
public OnScreenMessage CreateMessage()
{
messagePrefab.GetComponentOrThrow<OnScreenMessage>();
var originalMessage = messagePrefab.GetComponentOrThrow<OnScreenMessage>();
if (m_pooledOnScreenMessages.Count > 0)
{
var originalTextComponent = originalMessage.GetComponentInChildren<Text>();
OnScreenMessage pooledMessage = m_pooledOnScreenMessages.Dequeue();
pooledMessage.gameObject.SetActive(true);
// reset parameters
pooledMessage.ScreenPos = originalMessage.ScreenPos;
pooledMessage.SizeOnScreen = originalMessage.SizeOnScreen;
pooledMessage.Text = originalTextComponent.text;
pooledMessage.TextColor = originalTextComponent.color;
pooledMessage.velocity = originalMessage.velocity;
pooledMessage.timeLeft = originalMessage.timeLeft;
m_onScreenMessages.Add(pooledMessage);
return pooledMessage;
}
GameObject messageGo = Object.Instantiate(messagePrefab);
messageGo.transform.SetParent(messagesContainer, false);