111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
#include "UI/NavigationLink.h"
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#include <bit>
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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// OFFSET: 0x00833160
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// FUNCTION: fn_10409
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int DecodeNavigationNumber(std::string value) {
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constexpr char digits[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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const std::size_t length = value.size();
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std::uint32_t result = 0;
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for (std::size_t index = 0; index < length; ++index) {
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const char* digit = std::strchr(digits, value[index]);
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if (!digit || *digit == '\0') {
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continue;
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}
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std::uint32_t place = 1;
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for (std::size_t exponent = index + 1; exponent < length; ++exponent) {
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place *= 62;
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}
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result += static_cast<std::uint32_t>(digit - digits) * place;
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}
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return std::bit_cast<std::int32_t>(result);
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}
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// OFFSET: 0x00835890
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// FUNCTION: fn_10420
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bool ParseNavigationLink(std::string value, std::string& name, int& x, int& y) {
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const auto end = value.find("</NAVIL>");
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if (end == std::string::npos) {
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return true;
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}
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// Original substr throws when the closing tag precedes four coordinate bytes.
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const auto coordinates = end - 4;
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const std::string tail = value.substr(coordinates);
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x = DecodeNavigationNumber(tail.substr(0, 2));
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y = DecodeNavigationNumber(tail.substr(2, 2));
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const std::string head = value.substr(0, coordinates);
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const auto begin = head.find("<NAVIL>");
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if (begin != std::string::npos) {
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name = head.substr(begin + 7);
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}
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return !name.empty();
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}
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// OFFSET: 0x00835600
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// FUNCTION: fn_10419
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std::string FormatNavigationLink(std::string value, bool brackets) {
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std::string name;
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int x = 0, y = 0;
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ParseNavigationLink(value, name, x, y);
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char text[128] = {};
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if (x > 999 && y > 999) {
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std::sprintf(text, brackets ? "<%s>" : "%s", name.c_str());
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} else {
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std::sprintf(text, brackets ? "<%s %d,%d>" : "%s %d,%d", name.c_str(), x, y);
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}
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return text;
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}
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// OFFSET: 0x00833550
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// FUNCTION: fn_10411
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void DisplayNavigationLink(std::string& output, std::string value) {
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output = value;
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const auto begin = value.find("<NAVIL>");
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if (begin != std::string::npos) {
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output.clear();
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const std::string head = value.substr(0, begin);
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const std::string tail = value.substr(begin);
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const auto end = tail.find("</NAVIL>");
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if (end != std::string::npos) {
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const auto extent = end + 8;
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const std::string rest = tail.substr(extent);
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output = head;
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output += FormatNavigationLink(tail.substr(0, extent), true);
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output += rest;
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}
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}
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}
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// OFFSET: 0x00834980
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// FUNCTION: fn_10417
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void ExtractNavigationLink(std::string& output, std::string value) {
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output = value;
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const auto begin = value.find("<NAVIL>");
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if (begin != std::string::npos) {
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output = value.substr(begin);
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const auto end = output.find("</NAVIL>");
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if (end != std::string::npos) {
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output.resize(end + 8);
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}
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}
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}
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