first commit

Minecraft.World/MineShaftFeature.cpp

@@ -0,0 +1,23 @@
+#include "stdafx.h"
+#include "net.minecraft.world.level.levelgen.structure.h"
+#include "JavaMath.h"
+
+bool MineShaftFeature::isFeatureChunk(int x, int z, bool bIsSuperflat)
+{
+	bool forcePlacement = false;
+	LevelGenerationOptions *levelGenOptions = app.getLevelGenerationOptions();
+	if( levelGenOptions != NULL )
+	{
+		forcePlacement = levelGenOptions->isFeatureChunk(x,z,eFeature_Mineshaft);
+	}
+
+	return forcePlacement || (random->nextInt(100) == 0 && random->nextInt(80) < max(abs(x), abs(z)));
+}
+
+StructureStart *MineShaftFeature::createStructureStart(int x, int z)
+{
+	// 4J added
+	app.AddTerrainFeaturePosition(eTerrainFeature_Mineshaft,x,z);
+
+	return new MineShaftStart(level, random, x, z);
+}