first commit

Minecraft.World/DownfallMixerLayer.cpp

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+#include "stdafx.h"
+#include "net.minecraft.world.level.biome.h"
+#include "net.minecraft.world.level.newbiome.layer.h"
+
+DownfallMixerLayer::DownfallMixerLayer(shared_ptr<Layer>downfall, shared_ptr<Layer>parent, int layer) : Layer(0)
+{
+	this->parent = parent;
+	this->downfall = downfall;
+	this->layer = layer;
+}
+
+intArray DownfallMixerLayer::getArea(int xo, int yo, int w, int h)
+{
+	intArray b = parent->getArea(xo, yo, w, h);
+	intArray d = downfall->getArea(xo, yo, w, h);
+
+	intArray result = IntCache::allocate(w * h);
+	for (int i = 0; i < w * h; i++)
+	{
+		result[i] = d[i] + (Biome::biomes[b[i]]->getDownfallInt() - d[i]) / (layer + 1);
+	}
+
+	return result;
+}