1 files changed, 51 insertions, 0 deletions
diff --git a/Minecraft.World/SpringFeature.cpp b/Minecraft.World/SpringFeature.cpp
new file mode 100644
index 00000000..f26f0084
--- /dev/null
+++ b/Minecraft.World/SpringFeature.cpp
@@ -0,0 +1,51 @@
+#include "stdafx.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.tile.h"
+#include "SpringFeature.h"
+
+SpringFeature::SpringFeature(int tile)
+{
+	this->tile = tile;
+}
+
+bool SpringFeature::place(Level *level, Random *random, int x, int y, int z)
+{
+	// 4J Stu Added to stop spring features generating areas previously place by game rule generation
+	if(app.getLevelGenerationOptions() != NULL)
+	{
+		LevelGenerationOptions *levelGenOptions = app.getLevelGenerationOptions();
+		bool intersects = levelGenOptions->checkIntersects(x, y, z, x, y, z);
+		if(intersects)
+		{
+			//app.DebugPrintf("Skipping spring feature generation as it overlaps a game rule structure\n");
+			return false;
+		}
+	}
+
+    if (level->getTile(x, y + 1, z) != Tile::rock_Id) return false;
+    if (level->getTile(x, y - 1, z) != Tile::rock_Id) return false;
+
+    if (level->getTile(x, y, z) != 0 && level->getTile(x, y, z) != Tile::rock_Id) return false;
+
+    int rockCount = 0;
+    if (level->getTile(x - 1, y, z) == Tile::rock_Id) rockCount++;
+    if (level->getTile(x + 1, y, z) == Tile::rock_Id) rockCount++;
+    if (level->getTile(x, y, z - 1) == Tile::rock_Id) rockCount++;
+    if (level->getTile(x, y, z + 1) == Tile::rock_Id) rockCount++;
+
+    int holeCount = 0;
+    if (level->isEmptyTile(x - 1, y, z)) holeCount++;
+    if (level->isEmptyTile(x + 1, y, z)) holeCount++;
+    if (level->isEmptyTile(x, y, z - 1)) holeCount++;
+    if (level->isEmptyTile(x, y, z + 1)) holeCount++;
+
+    if (rockCount == 3 && holeCount == 1)
+	{
+        level->setTile(x, y, z, tile);
+        level->setInstaTick(true);
+        Tile::tiles[tile]->tick(level, x, y, z, random);
+        level->setInstaTick(false);
+    }
+
+    return true;
+}
+\ No newline at end of file