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59 lines
2 KiB
C++
59 lines
2 KiB
C++
#include "../../Platform/stdafx.h"
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#include "../../Headers/net.minecraft.world.level.newbiome.layer.h"
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#include "../../Platform/System.h"
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SmoothZoomLayer::SmoothZoomLayer(int64_t seedMixup,
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std::shared_ptr<Layer> parent)
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: Layer(seedMixup) {
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this->parent = parent;
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}
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intArray SmoothZoomLayer::getArea(int xo, int yo, int w, int h) {
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int px = xo >> 1;
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int py = yo >> 1;
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int pw = (w >> 1) + 3;
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int ph = (h >> 1) + 3;
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intArray p = parent->getArea(px, py, pw, ph);
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intArray tmp = IntCache::allocate((pw * 2) * (ph * 2));
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int ww = (pw << 1);
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for (int y = 0; y < ph - 1; y++) {
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int ry = y << 1;
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int pp = ry * ww;
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int ul = p[(0 + 0) + (y + 0) * pw];
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int dl = p[(0 + 0) + (y + 1) * pw];
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for (int x = 0; x < pw - 1; x++) {
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initRandom((x + px) << 1, (y + py) << 1);
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int ur = p[(x + 1) + (y + 0) * pw];
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int dr = p[(x + 1) + (y + 1) * pw];
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tmp[pp] = ul;
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tmp[pp++ + ww] = ul + (dl - ul) * (nextRandom(256)) / 256;
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tmp[pp] = ul + (ur - ul) * (nextRandom(256)) / 256;
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int a = ul + (ur - ul) * (nextRandom(256)) / 256;
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int b = dl + (dr - dl) * (nextRandom(256)) / 256;
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tmp[pp++ + ww] = a + (b - a) * (nextRandom(256)) / 256;
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ul = ur;
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dl = dr;
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}
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}
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intArray result = IntCache::allocate(w * h);
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for (int y = 0; y < h; y++) {
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System::arraycopy(tmp, (y + (yo & 1)) * (pw << 1) + (xo & 1), &result,
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y * w, w);
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}
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return result;
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}
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std::shared_ptr<Layer> SmoothZoomLayer::zoom(int64_t seed,
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std::shared_ptr<Layer> sup,
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int count) {
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std::shared_ptr<Layer> result = sup;
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for (int i = 0; i < count; i++) {
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result = std::shared_ptr<Layer>(new SmoothZoomLayer(seed + i, result));
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}
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return result;
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} |