41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
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#include <cmath>
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#include <cstdint>
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#include <algorithm>
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#include "math.h"
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#include "../object/point.h"
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float distance(Point& a, Point& b) {
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return sqrt( pow(a.getX() - b.getX(), 2) +
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pow(a.getY() - b.getY(), 2) +
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pow(a.getZ() - b.getZ(), 2)
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);
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}
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uint64_t st64(std::string hex) {
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std::reverse(hex.begin(), hex.end());
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uint64_t res = 0;
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for (int i = 0; i<hex.length(); i++) {
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if (hex.at(i) >= 'A' && hex.at(i) <= 'F') {
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res += (hex.at(i) - 'A' + 10) * pow(16, i);
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} else if (hex.at(i) >= 'a' && hex.at(i) <= 'f') {
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res += (hex.at(i) - 'a' + 10) * pow(16, i);
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} else if (hex.at(i) >= '0' && hex.at(i) <= '9') {
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res += (hex.at(i) - '0') * pow(16, i);
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} else {
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std::cerr << "Color value seem not to be hexadecimal, returning 0 (" << hex << ")." << std::endl;
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return 0;
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}
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}
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return res;
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}
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uint8_t getR(uint64_t color) { return (color << 16) >> 56; }
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uint8_t getG(uint64_t color) { return (color << 24) >> 56; }
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uint8_t getB(uint64_t color) { return (color << 32) >> 56; }
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uint8_t getA(uint64_t color) { return (color << 40) >> 56; }
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uint8_t getL(uint64_t color) { return (color << 48) >> 56; }
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uint8_t getZ(uint64_t color) { return (color << 56) >> 56; }
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