Files
allwpilib/commandsv2/src/main/native/include/wpi/commands2/SequentialCommandGroup.hpp
2025-11-07 23:09:21 -08:00

111 lines
3.2 KiB
C++

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#pragma once
#ifdef _WIN32
#pragma warning(push)
#pragma warning(disable : 4521)
#endif
#include <limits>
#include <memory>
#include <type_traits>
#include <utility>
#include <vector>
#include <wpi/DecayedDerivedFrom.h>
#include "frc2/command/CommandHelper.h"
namespace frc2 {
const size_t invalid_index = std::numeric_limits<size_t>::max();
/**
* A command composition that runs a list of commands in sequence.
*
* <p>The rules for command compositions apply: command instances that are
* passed to it are owned by the composition and cannot be added to any other
* composition or scheduled individually, and the composition requires all
* subsystems its components require.
*
* This class is provided by the NewCommands VendorDep
*/
class SequentialCommandGroup
: public CommandHelper<Command, SequentialCommandGroup> {
public:
/**
* Creates a new SequentialCommandGroup. The given commands will be run
* sequentially, with the composition finishing when the last command
* finishes.
*
* @param commands the commands to include in this composition.
*/
explicit SequentialCommandGroup(
std::vector<std::unique_ptr<Command>>&& commands);
/**
* Creates a new SequentialCommandGroup. The given commands will be run
* sequentially, with the composition finishing when the last command
* finishes.
*
* @param commands the commands to include in this composition.
*/
template <wpi::DecayedDerivedFrom<Command>... Commands>
explicit SequentialCommandGroup(Commands&&... commands) {
AddCommands(std::forward<Commands>(commands)...);
}
SequentialCommandGroup(SequentialCommandGroup&& other) = default;
// No copy constructors for command groups
SequentialCommandGroup(const SequentialCommandGroup&) = delete;
// Prevent template expansion from emulating copy ctor
SequentialCommandGroup(SequentialCommandGroup&) = delete;
/**
* Adds the given commands to the group.
*
* @param commands Commands to add, in order of execution.
*/
template <wpi::DecayedDerivedFrom<Command>... Commands>
void AddCommands(Commands&&... commands) {
std::vector<std::unique_ptr<Command>> foo;
((void)foo.emplace_back(std::make_unique<std::decay_t<Commands>>(
std::forward<Commands>(commands))),
...);
AddCommands(std::move(foo));
}
void Initialize() final;
void Execute() final;
void End(bool interrupted) final;
bool IsFinished() final;
bool RunsWhenDisabled() const override;
Command::InterruptionBehavior GetInterruptionBehavior() const override;
void InitSendable(wpi::SendableBuilder& builder) override;
private:
void AddCommands(std::vector<std::unique_ptr<Command>>&& commands);
wpi::SmallVector<std::unique_ptr<Command>, 4> m_commands;
size_t m_currentCommandIndex{invalid_index};
bool m_runWhenDisabled{true};
Command::InterruptionBehavior m_interruptBehavior{
Command::InterruptionBehavior::kCancelIncoming};
};
} // namespace frc2
#ifdef _WIN32
#pragma warning(pop)
#endif