42 lines
972 B
C++
42 lines
972 B
C++
#include <cstdint>
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#include <cmath>
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#include "window.hpp"
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#include "noise/perlin.hpp"
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int graph(uint32_t *img) {
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static PerlinNoise PerlinNoise;
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static float time = 0.0;
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for (int x = 0; x < WIDTH; x++) {
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float n = PerlinNoise.noise(x / 100.0 + time, 0.0) * 0.5;
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int y = static_cast<int>((n + 1) * (HEIGHT >> 1));
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for (int i = 0; i < HEIGHT; ++i) {
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if (i == y)
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img[i * WIDTH + x] = 0xFFFFFF;
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else
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img[i * WIDTH + x] = 0;
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}
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}
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time += 0.001;
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return 0;
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}
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int graph2(uint32_t *img) {
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static PerlinNoise PerlinNoise;
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static float time = 0.0;
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for (int x = 0; x < WIDTH; x++) {
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float n = PerlinNoise.noise(x / 100.0, time) * 0.5;
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int y = static_cast<int>((n + 1) * (HEIGHT >> 1));
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for (int i = 0; i < HEIGHT; ++i) {
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if (i - y < 40 && i - y > -40){
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int co = static_cast<int>(255 * (40 - abs(i - y)) / 40);
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img[i * WIDTH + x] = 0 << 16| (co << 8) | co;
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}
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else
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img[i * WIDTH + x] = 0;
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}
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}
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time += 0.001;
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return 0;
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}
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