mirror of https://github.com/OpenTTD/OpenTTD.git
Codechange: Add support for additional command result values.
This commit is contained in:
parent
8503854655
commit
3e85e833a7
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@ -18,6 +18,7 @@
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#include "ai.hpp"
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#include "../script/script_storage.hpp"
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#include "../script/script_cmd.h"
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#include "ai_info.hpp"
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#include "ai_instance.hpp"
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@ -96,8 +97,9 @@ ScriptInfo *AIInstance::FindLibrary(const char *library, int version)
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* @param result The result of the command.
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* @param tile The tile on which the command was executed.
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* @param data Command data as given to Command<>::Post.
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* @param result_data Additional returned data from the command.
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*/
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void CcAI(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data)
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void CcAI(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data)
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{
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/*
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* The company might not exist anymore. Check for this.
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@ -108,7 +110,7 @@ void CcAI(Commands cmd, const CommandCost &result, TileIndex tile, const Command
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const Company *c = Company::GetIfValid(_current_company);
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if (c == nullptr || c->ai_instance == nullptr) return;
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if (c->ai_instance->DoCommandCallback(result, tile, data, cmd)) {
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if (c->ai_instance->DoCommandCallback(result, tile, data, std::move(result_data), cmd)) {
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c->ai_instance->Continue();
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}
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}
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@ -111,10 +111,30 @@ protected:
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* Templated wrapper that exposes the command parameter arguments
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* for the various Command::Do/Post calls.
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* @tparam Tcmd The command-id to execute.
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* @tparam Tret Return type of the command.
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* @tparam Targs The command parameter types.
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*/
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template <Commands Tcmd, typename... Targs>
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struct CommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...), true> : protected CommandHelperBase {
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template <Commands Tcmd, typename Tret, typename... Targs>
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struct CommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...), true> : protected CommandHelperBase {
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private:
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/** Extract the \c CommandCost from a command proc result. */
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static inline CommandCost &ExtractCommandCost(Tret &ret)
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{
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if constexpr (std::is_same_v<Tret, CommandCost>) {
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return ret;
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} else {
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return std::get<0>(ret);
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}
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}
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/** Make a command proc result from a \c CommandCost. */
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static inline Tret MakeResult(const CommandCost &cost)
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{
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Tret ret{};
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ExtractCommandCost(ret) = cost;
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return ret;
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}
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public:
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/**
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* This function executes a given command with the parameters from the #CommandProc parameter list.
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@ -129,12 +149,12 @@ public:
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* @see CommandProc
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* @return the cost
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*/
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static CommandCost Do(DoCommandFlag flags, Targs... args)
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static Tret Do(DoCommandFlag flags, Targs... args)
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{
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if constexpr (std::is_same_v<TileIndex, std::tuple_element_t<0, std::tuple<Targs...>>>) {
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/* Do not even think about executing out-of-bounds tile-commands. */
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TileIndex tile = std::get<0>(std::make_tuple(args...));
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if (tile != 0 && (tile >= MapSize() || (!IsValidTile(tile) && (flags & DC_ALL_TILES) == 0))) return CMD_ERROR;
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if (tile != 0 && (tile >= MapSize() || (!IsValidTile(tile) && (flags & DC_ALL_TILES) == 0))) return MakeResult(CMD_ERROR);
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}
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RecursiveCommandCounter counter{};
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@ -142,17 +162,17 @@ public:
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/* Only execute the test call if it's toplevel, or we're not execing. */
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if (counter.IsTopLevel() || !(flags & DC_EXEC)) {
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InternalDoBefore(counter.IsTopLevel(), true);
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CommandCost res = CommandTraits<Tcmd>::proc(flags & ~DC_EXEC, args...);
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InternalDoAfter(res, flags, counter.IsTopLevel(), true); // Can modify res.
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Tret res = CommandTraits<Tcmd>::proc(flags & ~DC_EXEC, args...);
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InternalDoAfter(ExtractCommandCost(res), flags, counter.IsTopLevel(), true); // Can modify res.
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if (res.Failed() || !(flags & DC_EXEC)) return res;
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if (ExtractCommandCost(res).Failed() || !(flags & DC_EXEC)) return res;
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}
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/* Execute the command here. All cost-relevant functions set the expenses type
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* themselves to the cost object at some point. */
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InternalDoBefore(counter.IsTopLevel(), false);
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CommandCost res = CommandTraits<Tcmd>::proc(flags, args...);
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InternalDoAfter(res, flags, counter.IsTopLevel(), false);
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Tret res = CommandTraits<Tcmd>::proc(flags, args...);
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InternalDoAfter(ExtractCommandCost(res), flags, counter.IsTopLevel(), false);
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return res;
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}
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@ -237,7 +257,7 @@ public:
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* @return the command cost of this function.
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*/
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template <typename Tcallback>
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static CommandCost Unsafe(StringID err_message, Tcallback *callback, bool my_cmd, bool estimate_only, TileIndex location, std::tuple<Targs...> args)
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static Tret Unsafe(StringID err_message, Tcallback *callback, bool my_cmd, bool estimate_only, TileIndex location, std::tuple<Targs...> args)
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{
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return Execute(err_message, reinterpret_cast<CommandCallback *>(callback), my_cmd, estimate_only, false, location, std::move(args));
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}
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@ -259,6 +279,13 @@ protected:
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((SetClientIdHelper(std::get<Tindices>(values))), ...);
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}
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/** Remove the first element of a tuple. */
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template <template <typename...> typename Tt, typename T1, typename... Ts>
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static inline Tt<Ts...> RemoveFirstTupleElement(const Tt<T1, Ts...> &tuple)
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{
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return std::apply([](auto &&, const auto&... args) { return std::tie(args...); }, tuple);
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}
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template <typename Tcallback>
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static bool InternalPost(StringID err_message, Tcallback *callback, bool my_cmd, bool network_command, std::tuple<Targs...> args)
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{
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@ -280,23 +307,33 @@ protected:
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/* Only set client IDs when the command does not come from the network. */
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if (!network_command && GetCommandFlags<Tcmd>() & CMD_CLIENT_ID) SetClientIds(args, std::index_sequence_for<Targs...>{});
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CommandCost res = Execute(err_message, reinterpret_cast<CommandCallback *>(callback), my_cmd, estimate_only, network_command, tile, args);
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InternalPostResult(res, tile, estimate_only, only_sending, err_message, my_cmd);
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Tret res = Execute(err_message, reinterpret_cast<CommandCallback *>(callback), my_cmd, estimate_only, network_command, tile, args);
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InternalPostResult(ExtractCommandCost(res), tile, estimate_only, only_sending, err_message, my_cmd);
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if (!estimate_only && !only_sending && callback != nullptr) {
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if constexpr (std::is_same_v<Tcallback, CommandCallback>) {
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/* Callback that doesn't need any command arguments. */
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callback(Tcmd, res, tile);
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callback(Tcmd, ExtractCommandCost(res), tile);
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} else if constexpr (std::is_same_v<Tcallback, CommandCallbackData>) {
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/* Generic callback that takes packed arguments as a buffer. */
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callback(Tcmd, res, tile, EndianBufferWriter<CommandDataBuffer>::FromValue(args));
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if constexpr (std::is_same_v<Tret, CommandCost>) {
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callback(Tcmd, ExtractCommandCost(res), tile, EndianBufferWriter<CommandDataBuffer>::FromValue(args), {});
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} else {
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callback(Tcmd, ExtractCommandCost(res), tile, EndianBufferWriter<CommandDataBuffer>::FromValue(args), EndianBufferWriter<CommandDataBuffer>::FromValue(RemoveFirstTupleElement(res)));
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}
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} else if constexpr (!std::is_same_v<Tret, CommandCost> && std::is_same_v<Tcallback *, typename CommandTraits<Tcmd>::RetCallbackProc>) {
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std::apply(callback, std::tuple_cat(std::make_tuple(Tcmd), res));
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} else {
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/* Callback with arguments. We assume that the tile is only interesting if it actually is in the command arguments. */
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std::apply(callback, std::tuple_cat(std::make_tuple(Tcmd, res), args));
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if constexpr (std::is_same_v<Tret, CommandCost>) {
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std::apply(callback, std::tuple_cat(std::make_tuple(Tcmd, res), args));
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} else {
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std::apply(callback, std::tuple_cat(std::make_tuple(Tcmd), res, args));
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}
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}
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}
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return res.Succeeded();
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return ExtractCommandCost(res).Succeeded();
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}
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/** Helper to process a single ClientID argument. */
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@ -317,7 +354,7 @@ protected:
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return (ClientIdIsSet(std::get<Tindices>(values)) && ...);
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}
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static CommandCost Execute(StringID err_message, CommandCallback *callback, bool my_cmd, bool estimate_only, bool network_command, TileIndex tile, std::tuple<Targs...> args)
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static Tret Execute(StringID err_message, CommandCallback *callback, bool my_cmd, bool estimate_only, bool network_command, TileIndex tile, std::tuple<Targs...> args)
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{
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/* Prevent recursion; it gives a mess over the network */
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RecursiveCommandCounter counter{};
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@ -334,14 +371,14 @@ protected:
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Backup<CompanyID> cur_company(_current_company, FILE_LINE);
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if (!InternalExecutePrepTest(cmd_flags, tile, cur_company)) {
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cur_company.Trash();
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return CMD_ERROR;
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return MakeResult(CMD_ERROR);
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}
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/* Test the command. */
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DoCommandFlag flags = CommandFlagsToDCFlags(cmd_flags);
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CommandCost res = std::apply(CommandTraits<Tcmd>::proc, std::tuple_cat(std::make_tuple(flags), args));
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Tret res = std::apply(CommandTraits<Tcmd>::proc, std::tuple_cat(std::make_tuple(flags), args));
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auto [exit_test, desync_log, send_net] = InternalExecuteValidateTestAndPrepExec(res, cmd_flags, estimate_only, network_command, cur_company);
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auto [exit_test, desync_log, send_net] = InternalExecuteValidateTestAndPrepExec(ExtractCommandCost(res), cmd_flags, estimate_only, network_command, cur_company);
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if (exit_test) {
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if (desync_log) LogCommandExecution(Tcmd, err_message, tile, EndianBufferWriter<CommandDataBuffer>::FromValue(args), true);
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cur_company.Restore();
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@ -358,15 +395,20 @@ protected:
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* This way it's not handled by DoCommand and only the
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* actual execution of the command causes messages. Also
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* reset the storages as we've not executed the command. */
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return CommandCost();
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return {};
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}
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if (desync_log) LogCommandExecution(Tcmd, err_message, tile, EndianBufferWriter<CommandDataBuffer>::FromValue(args), false);
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/* Actually try and execute the command. */
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CommandCost res2 = std::apply(CommandTraits<Tcmd>::proc, std::tuple_cat(std::make_tuple(flags | DC_EXEC), args));
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Tret res2 = std::apply(CommandTraits<Tcmd>::proc, std::tuple_cat(std::make_tuple(flags | DC_EXEC), args));
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return InternalExecuteProcessResult(Tcmd, cmd_flags, res, res2, tile, cur_company);
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if constexpr (std::is_same_v<Tret, CommandCost>) {
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return InternalExecuteProcessResult(Tcmd, cmd_flags, res, res2, tile, cur_company);
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} else {
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std::get<0>(res2) = InternalExecuteProcessResult(Tcmd, cmd_flags, ExtractCommandCost(res), ExtractCommandCost(res2), tile, cur_company);
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return res2;
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}
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}
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};
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@ -374,13 +416,14 @@ protected:
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* Overload for #CommandHelper that exposes additional \c Post variants
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* for commands that don't take a TileIndex themselves.
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* @tparam Tcmd The command-id to execute.
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* @tparam Tret Return type of the command.
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* @tparam Targs The command parameter types.
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*/
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template <Commands Tcmd, typename... Targs>
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struct CommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...), false> : CommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...), true>
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template <Commands Tcmd, typename Tret, typename... Targs>
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struct CommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...), false> : CommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...), true>
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{
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/* Import Post overloads from our base class. */
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using CommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...), true>::Post;
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using CommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...), true>::Post;
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/**
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* Shortcut for Post when not using an error message.
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@ -416,7 +459,7 @@ struct CommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...), false> : Com
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template <typename Tcallback>
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static inline bool Post(StringID err_message, Tcallback *callback, TileIndex location, Targs... args)
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{
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return CommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...), true>::InternalPost(err_message, callback, true, false, location, std::forward_as_tuple(args...));
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return CommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...), true>::InternalPost(err_message, callback, true, false, location, std::forward_as_tuple(args...));
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}
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};
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@ -409,6 +409,14 @@ template <typename T> struct CommandFunctionTraitHelper;
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template <typename... Targs>
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struct CommandFunctionTraitHelper<CommandCost(*)(DoCommandFlag, Targs...)> {
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using Args = std::tuple<std::decay_t<Targs>...>;
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using CbArgs = Args;
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using CbProcType = void(*)(Commands, const CommandCost &);
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};
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template <template <typename...> typename Tret, typename... Tretargs, typename... Targs>
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struct CommandFunctionTraitHelper<Tret<CommandCost, Tretargs...>(*)(DoCommandFlag, Targs...)> {
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using Args = std::tuple<std::decay_t<Targs>...>;
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using CbArgs = std::tuple<std::decay_t<Tretargs>..., std::decay_t<Targs>...>;
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using CbProcType = void(*)(Commands, const CommandCost &, Tretargs...);
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};
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/** Defines the traits of a command. */
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@ -418,6 +426,8 @@ template <Commands Tcmd> struct CommandTraits;
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template<> struct CommandTraits<cmd_> { \
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using ProcType = decltype(&proc_); \
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using Args = typename CommandFunctionTraitHelper<ProcType>::Args; \
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using CbArgs = typename CommandFunctionTraitHelper<ProcType>::CbArgs; \
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using RetCallbackProc = typename CommandFunctionTraitHelper<ProcType>::CbProcType; \
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static constexpr Commands cmd = cmd_; \
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static constexpr auto &proc = proc_; \
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static constexpr CommandFlags flags = (CommandFlags)(flags_); \
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@ -453,8 +463,9 @@ typedef void CommandCallback(Commands cmd, const CommandCost &result, TileIndex
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* @param result The result of the executed command
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* @param tile The tile of the command action
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* @param data Additional data of the command
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* @param result_data Additional returned data from the command
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* @see CommandProc
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*/
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typedef void CommandCallbackData(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data);
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typedef void CommandCallbackData(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data);
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#endif /* COMMAND_TYPE_H */
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@ -13,6 +13,7 @@
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#include "../script/squirrel_class.hpp"
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#include "../script/script_storage.hpp"
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#include "../script/script_cmd.h"
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#include "../ai/ai_gui.hpp"
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#include "game_config.hpp"
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#include "game_info.hpp"
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@ -85,10 +86,11 @@ void GameInstance::Died()
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* @param result The result of the command.
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* @param tile The tile on which the command was executed.
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* @param data Command data as given to Command<>::Post.
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* @param result_data Additional returned data from the command.
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*/
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void CcGame(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data)
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void CcGame(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data)
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{
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if (Game::GetGameInstance()->DoCommandCallback(result, tile, data, cmd)) {
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if (Game::GetGameInstance()->DoCommandCallback(result, tile, data, std::move(result_data), cmd)) {
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Game::GetGameInstance()->Continue();
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}
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}
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@ -527,7 +527,7 @@ void UnpackNetworkCommand(const CommandPacket* cp)
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/* Check if the callback matches with the command arguments. If not, drop the callback. */
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using Tcallback = std::tuple_element_t<Tcb, decltype(_callback_tuple)>;
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if constexpr (std::is_same_v<Tcallback, CommandCallback * const> || std::is_same_v<Tcallback, CommandCallbackData * const> || std::is_same_v<typename CommandTraits<Tcmd>::Args, typename CallbackArgsHelper<Tcallback>::Args>) {
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if constexpr (std::is_same_v<Tcallback, CommandCallback * const> || std::is_same_v<Tcallback, CommandCallbackData * const> || std::is_same_v<typename CommandTraits<Tcmd>::CbArgs, typename CallbackArgsHelper<Tcallback>::Args>) {
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Command<Tcmd>::PostFromNet(cp->err_msg, std::get<Tcb>(_callback_tuple), cp->my_cmd, cp->tile, args);
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} else {
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Command<Tcmd>::PostFromNet(cp->err_msg, (CommandCallback *)nullptr, cp->my_cmd, cp->tile, args);
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@ -173,6 +173,16 @@ ScriptObject::ActiveInstance::~ActiveInstance()
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return GetStorage()->last_command_res;
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}
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/* static */ void ScriptObject::SetLastCommandResData(CommandDataBuffer data)
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{
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GetStorage()->last_cmd_ret = std::move(data);
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}
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/* static */ const CommandDataBuffer &ScriptObject::GetLastCommandResData()
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{
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return GetStorage()->last_cmd_ret;
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}
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/* static */ void ScriptObject::SetNewVehicleID(VehicleID vehicle_id)
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{
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GetStorage()->new_vehicle_id = vehicle_id;
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@ -61,6 +61,12 @@ public:
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*/
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static void SetLastCommandRes(bool res);
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/**
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* Store the extra data return by the last DoCommand.
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* @param data Extra data return by the command.
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*/
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static void SetLastCommandResData(CommandDataBuffer data);
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/**
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* Get the currently active instance.
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* @return The instance.
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@ -74,10 +80,11 @@ protected:
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* Templated wrapper that exposes the command parameter arguments
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* on the various DoCommand calls.
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* @tparam Tcmd The command-id to execute.
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* @tparam Tret Return type of the command.
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* @tparam Targs The command parameter types.
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*/
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template <Commands Tcmd, typename... Targs>
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struct ScriptDoCommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...)> {
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template <Commands Tcmd, typename Tret, typename... Targs>
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struct ScriptDoCommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...)> {
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static bool Do(Script_SuspendCallbackProc *callback, Targs... args)
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{
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return Execute(callback, std::forward_as_tuple(args...));
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@ -180,6 +187,11 @@ protected:
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*/
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static bool GetLastCommandRes();
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/**
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* Get the extra return data from the last DoCommand.
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*/
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static const CommandDataBuffer &GetLastCommandResData();
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/**
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* Get the latest stored new_vehicle_id.
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*/
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@ -363,10 +375,17 @@ namespace ScriptObjectInternal {
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{
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((SetClientIdHelper(std::get<Tindices>(values))), ...);
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}
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|
||||
/** Remove the first element of a tuple. */
|
||||
template <template <typename...> typename Tt, typename T1, typename... Ts>
|
||||
static inline Tt<Ts...> RemoveFirstTupleElement(const Tt<T1, Ts...> &tuple)
|
||||
{
|
||||
return std::apply([](auto &&, const auto&... args) { return std::tie(args...); }, tuple);
|
||||
}
|
||||
}
|
||||
|
||||
template <Commands Tcmd, typename... Targs>
|
||||
bool ScriptObject::ScriptDoCommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Targs...)>::Execute(Script_SuspendCallbackProc *callback, std::tuple<Targs...> args)
|
||||
template <Commands Tcmd, typename Tret, typename... Targs>
|
||||
bool ScriptObject::ScriptDoCommandHelper<Tcmd, Tret(*)(DoCommandFlag, Targs...)>::Execute(Script_SuspendCallbackProc *callback, std::tuple<Targs...> args)
|
||||
{
|
||||
auto [err, estimate_only, networking] = ScriptObject::DoCommandPrep();
|
||||
if (err) return false;
|
||||
|
@ -387,9 +406,14 @@ bool ScriptObject::ScriptDoCommandHelper<Tcmd, CommandCost(*)(DoCommandFlag, Tar
|
|||
if (!estimate_only && networking) ScriptObject::SetLastCommand(tile, EndianBufferWriter<CommandDataBuffer>::FromValue(args), Tcmd);
|
||||
|
||||
/* Try to perform the command. */
|
||||
CommandCost res = ::Command<Tcmd>::Unsafe((StringID)0, networking ? ScriptObject::GetDoCommandCallback() : nullptr, false, estimate_only, tile, args);
|
||||
Tret res = ::Command<Tcmd>::Unsafe((StringID)0, networking ? ScriptObject::GetDoCommandCallback() : nullptr, false, estimate_only, tile, args);
|
||||
|
||||
return ScriptObject::DoCommandProcessResult(res, callback, estimate_only);
|
||||
if constexpr (std::is_same_v<Tret, CommandCost>) {
|
||||
return ScriptObject::DoCommandProcessResult(res, callback, estimate_only);
|
||||
} else {
|
||||
ScriptObject::SetLastCommandResData(EndianBufferWriter<CommandDataBuffer>::FromValue(ScriptObjectInternal::RemoveFirstTupleElement(res)));
|
||||
return ScriptObject::DoCommandProcessResult(std::get<0>(res), callback, estimate_only);
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* SCRIPT_OBJECT_HPP */
|
||||
|
|
|
@ -687,7 +687,7 @@ SQInteger ScriptInstance::GetOpsTillSuspend()
|
|||
return this->engine->GetOpsTillSuspend();
|
||||
}
|
||||
|
||||
bool ScriptInstance::DoCommandCallback(const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, Commands cmd)
|
||||
bool ScriptInstance::DoCommandCallback(const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data, Commands cmd)
|
||||
{
|
||||
ScriptObject::ActiveInstance active(this);
|
||||
|
||||
|
@ -697,6 +697,7 @@ bool ScriptInstance::DoCommandCallback(const CommandCost &result, TileIndex tile
|
|||
}
|
||||
|
||||
ScriptObject::SetLastCommandRes(result.Succeeded());
|
||||
ScriptObject::SetLastCommandResData(std::move(result_data));
|
||||
|
||||
if (result.Failed()) {
|
||||
ScriptObject::SetLastError(ScriptError::StringToError(result.GetErrorMessage()));
|
||||
|
|
|
@ -179,10 +179,11 @@ public:
|
|||
* @param result The result of the command.
|
||||
* @param tile The tile on which the command was executed.
|
||||
* @param data Command data as given to DoCommandPInternal.
|
||||
* @param result_data Extra data return from the command.
|
||||
* @param cmd cmd as given to DoCommandPInternal.
|
||||
* @return true if we handled result.
|
||||
*/
|
||||
bool DoCommandCallback(const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, Commands cmd);
|
||||
bool DoCommandCallback(const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data, Commands cmd);
|
||||
|
||||
/**
|
||||
* Insert an event for this script.
|
||||
|
|
|
@ -47,6 +47,7 @@ private:
|
|||
TileIndex last_tile; ///< The last tile passed to a command.
|
||||
CommandDataBuffer last_data; ///< The last data passed to a command.
|
||||
Commands last_cmd; ///< The last cmd passed to a command.
|
||||
CommandDataBuffer last_cmd_ret; ///< The extra data returned by the last command.
|
||||
|
||||
VehicleID new_vehicle_id; ///< The ID of the new Vehicle.
|
||||
SignID new_sign_id; ///< The ID of the new Sign.
|
||||
|
|
Loading…
Reference in New Issue