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#include "stdafx.h"
#include "net.minecraft.world.level.newbiome.layer.h"
#include "net.minecraft.world.level.biome.h"
AddIslandLayer::AddIslandLayer(int64_t seedMixup, shared_ptr<Layer>parent) : Layer(seedMixup)
{
this->parent = parent;
}
intArray AddIslandLayer::getArea(int xo, int yo, int w, int h)
{
int px = xo - 1;
int py = yo - 1;
int pw = w + 2;
int ph = h + 2;
intArray p = parent->getArea(px, py, pw, ph);
intArray result = IntCache::allocate(w * h);
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
int n1 = p[(x + 0) + (y + 0) * pw];
int n2 = p[(x + 2) + (y + 0) * pw];
int n3 = p[(x + 0) + (y + 2) * pw];
int n4 = p[(x + 2) + (y + 2) * pw];
int c = p[(x + 1) + (y + 1) * pw];
initRandom(x + xo, y + yo);
if (c == 0 && (n1 != 0 || n2 != 0 || n3 != 0 || n4 != 0))
{
int odds = 1;
int swap = 1;
if (n1 != 0 && nextRandom(odds++) == 0) swap = n1;
if (n2 != 0 && nextRandom(odds++) == 0) swap = n2;
if (n3 != 0 && nextRandom(odds++) == 0) swap = n3;
if (n4 != 0 && nextRandom(odds++) == 0) swap = n4;
if (nextRandom(3) == 0)
{
result[x + y * w] = swap;
}
else
{
if (swap == Biome::iceFlats->id) result[x + y * w] = Biome::frozenOcean->id;
else result[x + y * w] = 0;
}
}
else if (c > 0 && (n1 == 0 || n2 == 0 || n3 == 0 || n4 == 0))
{
if (nextRandom(5) == 0)
{
if (c == Biome::iceFlats->id) result[x + y * w] = Biome::frozenOcean->id;
else result[x + y * w] = 0;
}
else result[x + y * w] = c;
}
else
{
result[x + y * w] = c;
}
}
}
return result;
}
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