From 167c4bf2e691e22240a3c41ebc7181a03933fdb4 Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Fri, 14 Jul 2017 16:18:33 +0200
Subject: Simulators: Added area-based wakeup.

---
 src/Simulator/Simulator.cpp | 50 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'src/Simulator/Simulator.cpp')

diff --git a/src/Simulator/Simulator.cpp b/src/Simulator/Simulator.cpp
index 0175fd67d..275d60161 100644
--- a/src/Simulator/Simulator.cpp
+++ b/src/Simulator/Simulator.cpp
@@ -5,6 +5,7 @@
 #include "../BlockID.h"
 #include "../Defines.h"
 #include "../Chunk.h"
+#include "../Cuboid.h"
 
 #ifdef __clang__
 	#pragma clang diagnostic ignored "-Wweak-template-vtables"
@@ -38,3 +39,52 @@ void cSimulator::WakeUp(int a_BlockX, int a_BlockY, int a_BlockZ, cChunk * a_Chu
 
 
 
+
+void cSimulator::WakeUpArea(const cCuboid & a_Area)
+{
+	cCuboid area(a_Area);
+	area.Sort();
+	area.Expand(1, 1, 1, 1, 1, 1);  // Expand the area to contain the neighbors, too.
+	area.ClampY(0, cChunkDef::Height - 1);
+
+	// Add all blocks, in a per-chunk manner:
+	int chunkStartX, chunkStartZ, chunkEndX, chunkEndZ;
+	cChunkDef::BlockToChunk(area.p1.x, area.p1.z, chunkStartX, chunkStartZ);
+	cChunkDef::BlockToChunk(area.p2.x, area.p2.z, chunkEndX,   chunkEndZ);
+	for (int cz = chunkStartZ; cz <= chunkEndZ; ++cz)
+	{
+		for (int cx = chunkStartX; cx <= chunkEndX; ++cx)
+		{
+			m_World.DoWithChunk(cx, cz, [this, &area](cChunk & a_CBChunk) -> bool
+				{
+					if (!a_CBChunk.IsValid())
+					{
+						LOGWARNING("%s: Trying to wake up inside a non-valid chunk [%d, %d]. Ignoring.",
+							__FUNCTION__, a_CBChunk.GetPosX(), a_CBChunk.GetPosZ()
+						);
+						return true;
+					}
+					int startX = std::max(area.p1.x, a_CBChunk.GetPosX() * cChunkDef::Width);
+					int startZ = std::max(area.p1.z, a_CBChunk.GetPosZ() * cChunkDef::Width);
+					int endX = std::min(area.p2.x, a_CBChunk.GetPosX() * cChunkDef::Width + cChunkDef::Width - 1);
+					int endZ = std::min(area.p2.z, a_CBChunk.GetPosZ() * cChunkDef::Width + cChunkDef::Width - 1);
+					for (int y = area.p1.y; y <= area.p2.y; ++y)
+					{
+						for (int z = startZ; z <= endZ; ++z)
+						{
+							for (int x = startX; x <= endX; ++x)
+							{
+								AddBlock(x, y, z, &a_CBChunk);
+							}  // for x
+						}  // for z
+					}  // for y
+					return true;
+				}  // lambda
+			);  // DoWithChunk
+		}  // for cx
+	}  // for cz
+}
+
+
+
+
-- 
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