From 6e86d20f730aa46e0fa6b13b26a3b2586d21e513 Mon Sep 17 00:00:00 2001
From: tycho <work.tycho@gmail.com>
Date: Thu, 24 Sep 2015 15:43:31 +0100
Subject: Add new "ForEach" function: ForEachLoadedChunk.

---
 src/ChunkMap.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'src/ChunkMap.cpp')

diff --git a/src/ChunkMap.cpp b/src/ChunkMap.cpp
index aeae8f350..a11ceb060 100644
--- a/src/ChunkMap.cpp
+++ b/src/ChunkMap.cpp
@@ -2576,6 +2576,34 @@ bool cChunkMap::ForEachChunkInRect(int a_MinChunkX, int a_MaxChunkX, int a_MinCh
 
 
 
+bool cChunkMap::ForEachLoadedChunk(std::function<bool(int, int)> a_Callback)
+{
+	cCSLock Lock(m_CSLayers);
+	for (cChunkLayerList::const_iterator itr = m_Layers.begin(); itr != m_Layers.end(); ++itr)  // iterate over ALL loaded layers
+	{
+		cChunkLayer * layer = *itr;
+		for (int x = 0; x < LAYER_SIZE; x++)
+		{
+			for (int z = 0; z < LAYER_SIZE; z++)
+			{
+				cChunkPtr p = layer->FindChunk(layer->GetX() * LAYER_SIZE + x, layer->GetZ() * LAYER_SIZE + z);
+				if ((p != nullptr) && p->IsValid())  // if chunk is loaded
+				{
+					if (a_Callback(p->GetPosX(), p->GetPosZ()))
+					{
+						return false;
+					}
+				}
+			}
+		}
+	}
+	return true;
+}
+
+
+
+
+
 bool cChunkMap::WriteBlockArea(cBlockArea & a_Area, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes)
 {
 	// Convert block coords to chunks coords:
-- 
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