mirror of
https://github.com/diasurgical/DevilutionX.git
synced 2026-05-21 05:40:35 +00:00
Yuri Pourre
3afccc256d
* Add Lua towner API and dynamic dialog options Expose TownerShortNames to Lua (devilutionx.towners), per-towner position helpers, and RegisterTownerDialogOption for mod-driven store dialog lines. Includes stores integration and tests.
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
#include "lua/modules/towners.hpp"
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#include <optional>
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#include <string>
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#include <utility>
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#include <sol/sol.hpp>
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#include "engine/point.hpp"
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#include "lua/metadoc.hpp"
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#include "player.h"
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#include "stores.h"
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#include "towners.h"
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namespace devilution {
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namespace {
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void PopulateTownerTable(_talker_id townerId, sol::table &out)
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{
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LuaSetDocFn(out, "position", "()",
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"Returns towner coordinates",
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[townerId]() -> std::optional<std::pair<int, int>> {
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const Towner *towner = GetTowner(townerId);
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if (towner == nullptr) return std::nullopt;
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return std::make_pair(towner->position.x, towner->position.y);
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});
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}
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} // namespace
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sol::table LuaTownersModule(sol::state_view &lua)
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{
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sol::table table = lua.create_table();
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// Iterate over all towner types found in TSV data
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for (const auto &[townerId, name] : TownerLongNames) {
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auto shortNameIt = TownerShortNames.find(townerId);
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if (shortNameIt == TownerShortNames.end())
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continue; // Skip if no short name mapping
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sol::table townerTable = lua.create_table();
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PopulateTownerTable(townerId, townerTable);
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LuaSetDoc(table, shortNameIt->second, /*signature=*/"", name.c_str(), std::move(townerTable));
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}
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LuaSetDocFn(table, "addDialogOption",
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"(townerName: string, getLabel: function, onSelect: function)",
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"Adds a dynamic dialog option to a towner's talk menu.\n"
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"getLabel() is called each time the dialog opens; return a non-empty string to show\n"
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"the option or an empty string/nil to hide it.\n"
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"onSelect() is called when the player chooses the option.\n"
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"All options are cleared when mods reload or Lua shuts down; register from mod init.",
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[](std::string_view townerName, const sol::function &getLabel, const sol::function &onSelect) {
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RegisterTownerDialogOption(
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townerName,
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[getLabel]() -> std::string {
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sol::object result = getLabel();
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if (result.get_type() == sol::type::string)
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return result.as<std::string>();
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return {};
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},
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[onSelect]() {
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onSelect();
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});
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});
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return table;
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}
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} // namespace devilution
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