From b691c43c44ff180d10e7d4a9afc83b98551ff586 Mon Sep 17 00:00:00 2001
From: daoge_cmd <3523206925@qq.com>
Date: Sun, 1 Mar 2026 12:16:08 +0800
Subject: Initial commit

---
 Minecraft.World/ReedsFeature.cpp | 46 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Minecraft.World/ReedsFeature.cpp

(limited to 'Minecraft.World/ReedsFeature.cpp')

diff --git a/Minecraft.World/ReedsFeature.cpp b/Minecraft.World/ReedsFeature.cpp
new file mode 100644
index 00000000..6d4f3e97
--- /dev/null
+++ b/Minecraft.World/ReedsFeature.cpp
@@ -0,0 +1,46 @@
+#include "stdafx.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.tile.h"
+#include "ReedsFeature.h"
+
+bool ReedsFeature::place(Level *level, Random *random, int x, int y, int z)
+{
+    for (int i = 0; i < 20; i++)
+	{
+        int x2 = x + random->nextInt(4) - random->nextInt(4);
+        int y2 = y;
+        int z2 = z + random->nextInt(4) - random->nextInt(4);
+
+		// 4J Stu Added to stop reed features generating areas previously place by game rule generation
+		if(app.getLevelGenerationOptions() != NULL)
+		{
+			LevelGenerationOptions *levelGenOptions = app.getLevelGenerationOptions();
+			bool intersects = levelGenOptions->checkIntersects(x2, y2, z2, x2, y2, z2);
+			if(intersects)
+			{
+				//app.DebugPrintf("Skipping reeds feature generation as it overlaps a game rule structure\n");
+				continue;
+			}
+		}
+        if (level->isEmptyTile(x2, y2, z2)) 
+		{
+            if (level->getMaterial(x2-1, y2-1, z2) == Material::water || 
+                level->getMaterial(x2+1, y2-1, z2) == Material::water || 
+                level->getMaterial(x2, y2-1, z2-1) == Material::water || 
+                level->getMaterial(x2, y2-1, z2+1) == Material::water)
+			{
+
+                int h = 2 + random->nextInt(random->nextInt(3) + 1);
+                for (int yy = 0; yy < h; yy++)
+				{
+                    if ( Tile::reeds->canSurvive(level, x2, y2 + yy, z2) )
+					{
+                        level->setTileNoUpdate(x2, y2 + yy, z2, Tile::reeds_Id);
+                    }
+                }
+            }
+        }
+    }
+
+    return true;
+}
\ No newline at end of file
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