Examples Clean-Up (#1408)

This commit is contained in:
Chris Gerth
2024-09-14 23:10:02 -05:00
committed by GitHub
parent 596c87519c
commit 9e6a066561
269 changed files with 9346 additions and 3734 deletions

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@@ -11,18 +11,12 @@ repositories {
jcenter()
}
wpi.maven.useDevelopment = true
wpi.versions.wpilibVersion = "2024.3.2"
wpi.versions.wpimathVersion = "2024.3.2"
apply from: "${rootDir}/../shared/examples_common.gradle"
ext {
wpilibVersion = "2025.0.0-alpha-1"
wpimathVersion = wpilibVersion
openCVversion = "4.8.0-2"
}
wpi.getVersions().getOpencvVersion().convention(openCVversion);
wpi.getVersions().getWpilibVersion().convention(wpilibVersion);
wpi.getVersions().getWpimathVersion().convention(wpimathVersion);
// Define my targets (RoboRIO) and artifacts (deployable files)
// This is added by GradleRIO's backing project DeployUtils.
deploy {
@@ -68,21 +62,36 @@ wpi.sim.addDriverstation()
model {
components {
frcUserProgram(NativeExecutableSpec) {
targetPlatform wpi.platforms.roborio
targetPlatform wpi.platforms.desktop
// We don't need to build for roborio -- if we do, we need to install
// a roborio toolchain every time we build in CI
// Ideally, we'd be able to set the roborio toolchain as optional, but
// I can't figure out how to set that environment variable from build.gradle
// (see https://github.com/wpilibsuite/native-utils/blob/2917c69fb5094e36d499c465f047dab81c68446c/ToolchainPlugin/src/main/java/edu/wpi/first/toolchain/ToolchainGraphBuildService.java#L71)
// for now, commented out
// targetPlatform wpi.platforms.roborio
if (includeDesktopSupport) {
targetPlatform wpi.platforms.desktop
}
sources.cpp {
source {
srcDir 'src/main/cpp'
include '**/*.cpp', '**/*.cc'
}
exportedHeaders {
srcDir 'src/main/include'
}
}
// Set deploy task to deploy this component
deployArtifact.component = it
// Enable run tasks for this component
wpi.cpp.enableExternalTasks(it)
// Enable simulation for this component
wpi.sim.enable(it)
// Defining my dependencies. In this case, WPILib (+ friends), and vendor libraries.
wpi.cpp.vendor.cpp(it)
@@ -100,6 +109,7 @@ model {
}
}
// Enable run tasks for this component
wpi.cpp.enableExternalTasks(it)
wpi.cpp.vendor.cpp(it)

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@@ -0,0 +1 @@
[]

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@@ -11,10 +11,13 @@
"incKey": 83
},
{
"decKey": 69,
"decayRate": 0.0,
"incKey": 82,
"keyRate": 0.009999999776482582
},
{},
{
"decKey": 81,
"incKey": 69
}
],
"axisCount": 6,

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@@ -1,50 +1,64 @@
{
"Docking": {
"Data": []
},
"MainWindow": {
"GLOBAL": {
"height": "720",
"fps": "120",
"height": "910",
"maximized": "0",
"style": "0",
"userScale": "2",
"width": "1280",
"xpos": "3124",
"ypos": "324"
"width": "1550",
"xpos": "-1602",
"ypos": "79"
}
},
"Window": {
"###/SmartDashboard/VisionSystemSim-main/Sim Field": {
"Collapsed": "0",
"Pos": "554,10",
"Size": "991,527"
},
"###FMS": {
"Collapsed": "0",
"Pos": "5,540",
"Size": "283,146"
"Pos": "12,604",
"Size": "336,158"
},
"###Joysticks": {
"Collapsed": "0",
"Pos": "250,465",
"Size": "796,155"
},
"###Keyboard 0 Settings": {
"Collapsed": "0",
"Pos": "10,50",
"Size": "300,560"
"Pos": "278,685",
"Size": "976,219"
},
"###NetworkTables": {
"Collapsed": "0",
"Pos": "250,277",
"Size": "750,185"
"Pos": "353,479",
"Size": "830,620"
},
"###NetworkTables Info": {
"Collapsed": "0",
"Pos": "315,527",
"Size": "750,145"
},
"###Other Devices": {
"Collapsed": "0",
"Pos": "1025,20",
"Size": "250,695"
},
"###Plot <0>": {
"Collapsed": "0",
"Pos": "113,22",
"Size": "448,400"
},
"###System Joysticks": {
"Collapsed": "0",
"Pos": "5,350",
"Size": "192,218"
"Size": "232,254"
},
"###Timing": {
"Collapsed": "0",
"Pos": "5,150",
"Size": "135,127"
"Size": "162,142"
},
"Debug##Default": {
"Collapsed": "0",
@@ -54,7 +68,7 @@
"Robot State": {
"Collapsed": "0",
"Pos": "5,20",
"Size": "92,99"
"Size": "109,134"
}
}
}

View File

@@ -1,7 +1,164 @@
{
"NTProvider": {
"types": {
"/FMSInfo": "FMSInfo"
"/FMSInfo": "FMSInfo",
"/SmartDashboard/VisionSystemSim-main/Sim Field": "Field2d"
},
"windows": {
"/SmartDashboard/VisionSystemSim-main/Sim Field": {
"EstimatedRobot": {
"arrowWeight": 3.0,
"length": 0.800000011920929,
"selectable": false,
"weight": 3.0,
"width": 0.800000011920929
},
"EstimatedRobotModules": {
"arrows": false,
"image": "swerve_module.png",
"length": 0.30000001192092896,
"selectable": false,
"width": 0.30000001192092896
},
"Robot": {
"arrowColor": [
1.0,
1.0,
1.0,
255.0
],
"arrowWeight": 2.0,
"color": [
1.0,
1.0,
1.0,
255.0
],
"length": 0.800000011920929,
"selectable": false,
"weight": 2.0,
"width": 0.800000011920929
},
"VisionEstimation": {
"arrowColor": [
0.0,
0.6075949668884277,
1.0,
255.0
],
"arrowWeight": 2.0,
"color": [
0.0,
0.6075949668884277,
1.0,
255.0
],
"selectable": false,
"weight": 2.0
},
"apriltag": {
"arrows": false,
"image": "tag-green.png",
"length": 0.6000000238418579,
"width": 0.5
},
"bottom": 1476,
"cameras": {
"arrowColor": [
0.29535865783691406,
1.0,
0.9910804033279419,
255.0
],
"arrowSize": 19,
"arrowWeight": 3.0,
"length": 1.0,
"style": "Hidden",
"weight": 1.0,
"width": 1.0
},
"height": 8.210550308227539,
"image": "2023-field.png",
"left": 150,
"right": 2961,
"top": 79,
"visibleTargetPoses": {
"arrows": false,
"image": "tag-blue.png",
"length": 0.5,
"selectable": false,
"width": 0.4000000059604645
},
"width": 16.541748046875,
"window": {
"visible": true
}
}
}
},
"NetworkTables": {
"transitory": {
"CameraPublisher": {
"YOUR CAMERA NAME-processed": {
"open": true,
"string[]##v_/CameraPublisher/YOUR CAMERA NAME-processed/streams": {
"open": true
}
},
"open": true
},
"SmartDashboard": {
"VisionSystemSim-main": {
"open": true
},
"open": true
}
}
},
"NetworkTables Info": {
"visible": true
},
"Plot": {
"Plot <0>": {
"plots": [
{
"axis": [
{
"autoFit": true
}
],
"backgroundColor": [
0.0,
0.0,
0.0,
0.8500000238418579
],
"height": 332,
"series": [
{
"color": [
0.2980392277240753,
0.44705885648727417,
0.6901960968971252,
1.0
],
"id": "NT:/SmartDashboard/GPLauncher Act Spd (RPM)"
},
{
"color": [
0.8666667342185974,
0.5176470875740051,
0.32156863808631897,
1.0
],
"id": "NT:/SmartDashboard/GPLauncher Des Spd (RPM)"
}
]
}
],
"window": {
"visible": false
}
}
}
}

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@@ -24,50 +24,98 @@
#include "Robot.h"
#include <photon/PhotonUtils.h>
#include <iostream>
#include <frc/Timer.h>
#include <frc/smartdashboard/SmartDashboard.h>
#include <units/time.h>
#include <frc/simulation/BatterySim.h>
#include <frc/simulation/RoboRioSim.h>
void Robot::RobotInit() {}
void Robot::RobotPeriodic() {
photon::PhotonCamera::SetVersionCheckEnabled(false);
drivetrain.Periodic();
drivetrain.Log();
}
auto start = frc::Timer::GetFPGATimestamp();
photon::PhotonPipelineResult result = camera.GetLatestResult();
auto end = frc::Timer::GetFPGATimestamp();
void Robot::DisabledInit() {}
std::printf("DT is %.2f uS for %i targets\n",
units::microsecond_t(end - start).to<double>(),
result.GetTargets().size());
void Robot::DisabledPeriodic() { drivetrain.Stop(); }
void Robot::DisabledExit() {}
void Robot::AutonomousInit() {}
void Robot::AutonomousPeriodic() {}
void Robot::AutonomousExit() {}
void Robot::TeleopInit() {
frc::Pose2d pose{1_m, 1_m, frc::Rotation2d{}};
drivetrain.ResetPose(pose, true);
}
void Robot::TeleopPeriodic() {
double forwardSpeed = -xboxController.GetRightY();
double rotationSpeed;
if (xboxController.GetAButton()) {
// Vision-alignment mode
// Query the latest result from PhotonVision
auto start = frc::Timer::GetFPGATimestamp();
photon::PhotonPipelineResult result = camera.GetLatestResult();
auto end = frc::Timer::GetFPGATimestamp();
frc::SmartDashboard::PutNumber("decode_dt", (end - start).to<double>());
// Calculate drivetrain commands from Joystick values
auto forward =
-1.0 * controller.GetLeftY() * constants::Swerve::kMaxLinearSpeed;
auto strafe =
-1.0 * controller.GetLeftX() * constants::Swerve::kMaxLinearSpeed;
auto turn =
-1.0 * controller.GetRightX() * constants::Swerve::kMaxAngularSpeed;
bool targetVisible = false;
double targetYaw = 0.0;
auto results = camera.GetAllUnreadResults();
if (results.size() > 0) {
// Camera processed a new frame since last
// Get the last one in the list.
auto result = results[results.size() - 1];
if (result.HasTargets()) {
// Rotation speed is the output of the PID controller
rotationSpeed = -controller.Calculate(result.GetBestTarget().GetYaw(), 0);
} else {
// If we have no targets, stay still.
rotationSpeed = 0;
// At least one AprilTag was seen by the camera
for (auto& target : result.GetTargets()) {
if (target.GetFiducialId() == 7) {
// Found Tag 7, record its information
targetYaw = target.GetYaw();
targetVisible = true;
}
}
}
} else {
// Manual Driver Mode
rotationSpeed = xboxController.GetLeftX();
}
// Use our forward/turn speeds to control the drivetrain
drive.ArcadeDrive(forwardSpeed, rotationSpeed);
// Auto-align when requested
if (controller.GetAButton() && targetVisible) {
// Driver wants auto-alignment to tag 7
// And, tag 7 is in sight, so we can turn toward it.
// Override the driver's turn command with an automatic one that turns
// toward the tag.
turn =
-1.0 * targetYaw * VISION_TURN_kP * constants::Swerve::kMaxAngularSpeed;
}
// Command drivetrain motors based on target speeds
drivetrain.Drive(forward, strafe, turn);
}
void Robot::TeleopExit() {}
void Robot::TestInit() {}
void Robot::TestPeriodic() {}
void Robot::TestExit() {}
void Robot::SimulationPeriodic() {
drivetrain.SimulationPeriodic();
vision.SimPeriodic(drivetrain.GetSimPose());
frc::Field2d& debugField = vision.GetSimDebugField();
debugField.GetObject("EstimatedRobot")->SetPose(drivetrain.GetPose());
debugField.GetObject("EstimatedRobotModules")
->SetPoses(drivetrain.GetModulePoses());
units::ampere_t totalCurrent = drivetrain.GetCurrentDraw();
units::volt_t loadedBattVolts =
frc::sim::BatterySim::Calculate({totalCurrent});
frc::sim::RoboRioSim::SetVInVoltage(loadedBattVolts);
}
#ifndef RUNNING_FRC_TESTS

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@@ -0,0 +1,200 @@
/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "subsystems/SwerveDrive.h"
#include <iostream>
#include <string>
#include <frc/TimedRobot.h>
#include <frc/smartdashboard/SmartDashboard.h>
SwerveDrive::SwerveDrive()
: poseEstimator(kinematics, GetGyroYaw(), GetModulePositions(),
frc::Pose2d{}, {0.1, 0.1, 0.1}, {1.0, 1.0, 1.0}),
gyroSim(gyro),
swerveDriveSim(constants::Swerve::kDriveFF, frc::DCMotor::Falcon500(1),
constants::Swerve::kDriveGearRatio,
constants::Swerve::kWheelDiameter / 2,
constants::Swerve::kSteerFF, frc::DCMotor::Falcon500(1),
constants::Swerve::kSteerGearRatio, kinematics) {}
void SwerveDrive::Periodic() {
for (auto& currentModule : swerveMods) {
currentModule.Periodic();
}
poseEstimator.Update(GetGyroYaw(), GetModulePositions());
}
void SwerveDrive::Drive(units::meters_per_second_t vx,
units::meters_per_second_t vy,
units::radians_per_second_t omega) {
frc::ChassisSpeeds newChassisSpeeds =
frc::ChassisSpeeds::FromFieldRelativeSpeeds(vx, vy, omega, GetHeading());
SetChassisSpeeds(newChassisSpeeds, true, false);
}
void SwerveDrive::SetChassisSpeeds(const frc::ChassisSpeeds& newChassisSpeeds,
bool openLoop, bool steerInPlace) {
SetModuleStates(kinematics.ToSwerveModuleStates(newChassisSpeeds), true,
steerInPlace);
this->targetChassisSpeeds = newChassisSpeeds;
}
void SwerveDrive::SetModuleStates(
const std::array<frc::SwerveModuleState, 4>& desiredStates, bool openLoop,
bool steerInPlace) {
std::array<frc::SwerveModuleState, 4> desaturatedStates = desiredStates;
frc::SwerveDriveKinematics<4>::DesaturateWheelSpeeds(
static_cast<wpi::array<frc::SwerveModuleState, 4>*>(&desaturatedStates),
constants::Swerve::kMaxLinearSpeed);
for (int i = 0; i < swerveMods.size(); i++) {
swerveMods[i].SetDesiredState(desaturatedStates[i], openLoop, steerInPlace);
}
}
void SwerveDrive::Stop() { Drive(0_mps, 0_mps, 0_rad_per_s); }
void SwerveDrive::ResetPose(const frc::Pose2d& pose, bool resetSimPose) {
if (resetSimPose) {
swerveDriveSim.Reset(pose, false);
for (int i = 0; i < swerveMods.size(); i++) {
swerveMods[i].SimulationUpdate(0_m, 0_mps, 0_A, 0_rad, 0_rad_per_s, 0_A);
}
gyroSim.SetAngle(-pose.Rotation().Degrees());
gyroSim.SetRate(0_rad_per_s);
}
poseEstimator.ResetPosition(GetGyroYaw(), GetModulePositions(), pose);
}
frc::Pose2d SwerveDrive::GetPose() const {
return poseEstimator.GetEstimatedPosition();
}
frc::Rotation2d SwerveDrive::GetHeading() const { return GetPose().Rotation(); }
frc::Rotation2d SwerveDrive::GetGyroYaw() const { return gyro.GetRotation2d(); }
frc::ChassisSpeeds SwerveDrive::GetChassisSpeeds() const {
return kinematics.ToChassisSpeeds(GetModuleStates());
}
std::array<frc::SwerveModuleState, 4> SwerveDrive::GetModuleStates() const {
std::array<frc::SwerveModuleState, 4> moduleStates;
moduleStates[0] = swerveMods[0].GetState();
moduleStates[1] = swerveMods[1].GetState();
moduleStates[2] = swerveMods[2].GetState();
moduleStates[3] = swerveMods[3].GetState();
return moduleStates;
}
std::array<frc::SwerveModulePosition, 4> SwerveDrive::GetModulePositions()
const {
std::array<frc::SwerveModulePosition, 4> modulePositions;
modulePositions[0] = swerveMods[0].GetPosition();
modulePositions[1] = swerveMods[1].GetPosition();
modulePositions[2] = swerveMods[2].GetPosition();
modulePositions[3] = swerveMods[3].GetPosition();
return modulePositions;
}
std::array<frc::Pose2d, 4> SwerveDrive::GetModulePoses() const {
std::array<frc::Pose2d, 4> modulePoses;
for (int i = 0; i < swerveMods.size(); i++) {
const SwerveModule& module = swerveMods[i];
modulePoses[i] = GetPose().TransformBy(frc::Transform2d{
module.GetModuleConstants().centerOffset, module.GetAbsoluteHeading()});
}
return modulePoses;
}
void SwerveDrive::Log() {
std::string table = "Drive/";
frc::Pose2d pose = GetPose();
frc::SmartDashboard::PutNumber(table + "X", pose.X().to<double>());
frc::SmartDashboard::PutNumber(table + "Y", pose.Y().to<double>());
frc::SmartDashboard::PutNumber(table + "Heading",
pose.Rotation().Degrees().to<double>());
frc::ChassisSpeeds chassisSpeeds = GetChassisSpeeds();
frc::SmartDashboard::PutNumber(table + "VX", chassisSpeeds.vx.to<double>());
frc::SmartDashboard::PutNumber(table + "VY", chassisSpeeds.vy.to<double>());
frc::SmartDashboard::PutNumber(
table + "Omega Degrees",
chassisSpeeds.omega.convert<units::degrees_per_second>().to<double>());
frc::SmartDashboard::PutNumber(table + "Target VX",
targetChassisSpeeds.vx.to<double>());
frc::SmartDashboard::PutNumber(table + "Target VY",
targetChassisSpeeds.vy.to<double>());
frc::SmartDashboard::PutNumber(
table + "Target Omega Degrees",
targetChassisSpeeds.omega.convert<units::degrees_per_second>()
.to<double>());
for (auto& module : swerveMods) {
module.Log();
}
}
void SwerveDrive::SimulationPeriodic() {
std::array<units::volt_t, 4> driveInputs;
std::array<units::volt_t, 4> steerInputs;
for (int i = 0; i < swerveMods.size(); i++) {
driveInputs[i] = swerveMods[i].GetDriveVoltage();
steerInputs[i] = swerveMods[i].GetSteerVoltage();
}
swerveDriveSim.SetDriveInputs(driveInputs);
swerveDriveSim.SetSteerInputs(steerInputs);
swerveDriveSim.Update(frc::TimedRobot::kDefaultPeriod);
auto driveStates = swerveDriveSim.GetDriveStates();
auto steerStates = swerveDriveSim.GetSteerStates();
totalCurrentDraw = 0_A;
std::array<units::ampere_t, 4> driveCurrents =
swerveDriveSim.GetDriveCurrentDraw();
for (const auto& current : driveCurrents) {
totalCurrentDraw += current;
}
std::array<units::ampere_t, 4> steerCurrents =
swerveDriveSim.GetSteerCurrentDraw();
for (const auto& current : steerCurrents) {
totalCurrentDraw += current;
}
for (int i = 0; i < swerveMods.size(); i++) {
units::meter_t drivePos{driveStates[i](0, 0)};
units::meters_per_second_t driveRate{driveStates[i](1, 0)};
units::radian_t steerPos{steerStates[i](0, 0)};
units::radians_per_second_t steerRate{steerStates[i](1, 0)};
swerveMods[i].SimulationUpdate(drivePos, driveRate, driveCurrents[i],
steerPos, steerRate, steerCurrents[i]);
}
gyroSim.SetRate(-swerveDriveSim.GetOmega());
gyroSim.SetAngle(-swerveDriveSim.GetPose().Rotation().Degrees());
}
frc::Pose2d SwerveDrive::GetSimPose() const { return swerveDriveSim.GetPose(); }
units::ampere_t SwerveDrive::GetCurrentDraw() const { return totalCurrentDraw; }

View File

@@ -0,0 +1,285 @@
/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "subsystems/SwerveDriveSim.h"
#include <iostream>
#include <frc/RobotController.h>
#include <frc/system/Discretization.h>
template <typename T>
int sgn(T val) {
return (T(0) < val) - (val < T(0));
}
SwerveDriveSim::SwerveDriveSim(
const frc::SimpleMotorFeedforward<units::meters>& driveFF,
const frc::DCMotor& driveMotor, double driveGearing,
units::meter_t driveWheelRadius,
const frc::SimpleMotorFeedforward<units::radians>& steerFF,
const frc::DCMotor& steerMotor, double steerGearing,
const frc::SwerveDriveKinematics<numModules>& kinematics)
: SwerveDriveSim(
frc::LinearSystem<2, 1, 2>{
(Eigen::MatrixXd(2, 2) << 0.0, 1.0, 0.0,
-driveFF.kV.to<double>() / driveFF.kA.to<double>())
.finished(),
Eigen::Matrix<double, 2, 1>{0.0, 1.0 / driveFF.kA.to<double>()},
(Eigen::MatrixXd(2, 2) << 1.0, 0.0, 0.0, 1.0).finished(),
Eigen::Matrix<double, 2, 1>{0.0, 0.0}},
driveFF.kS, driveMotor, driveGearing, driveWheelRadius,
frc::LinearSystem<2, 1, 2>{
(Eigen::MatrixXd(2, 2) << 0.0, 1.0, 0.0,
-steerFF.kV.to<double>() / steerFF.kA.to<double>())
.finished(),
Eigen::Matrix<double, 2, 1>{0.0, 1.0 / steerFF.kA.to<double>()},
(Eigen::MatrixXd(2, 2) << 1.0, 0.0, 0.0, 1.0).finished(),
Eigen::Matrix<double, 2, 1>{0.0, 0.0}},
steerFF.kS, steerMotor, steerGearing, kinematics) {}
SwerveDriveSim::SwerveDriveSim(
const frc::LinearSystem<2, 1, 2>& drivePlant, units::volt_t driveKs,
const frc::DCMotor& driveMotor, double driveGearing,
units::meter_t driveWheelRadius,
const frc::LinearSystem<2, 1, 2>& steerPlant, units::volt_t steerKs,
const frc::DCMotor& steerMotor, double steerGearing,
const frc::SwerveDriveKinematics<numModules>& kinematics)
: drivePlant(drivePlant),
driveKs(driveKs),
driveMotor(driveMotor),
driveGearing(driveGearing),
driveWheelRadius(driveWheelRadius),
steerPlant(steerPlant),
steerKs(steerKs),
steerMotor(steerMotor),
steerGearing(steerGearing),
kinematics(kinematics) {}
void SwerveDriveSim::SetDriveInputs(
const std::array<units::volt_t, numModules>& inputs) {
units::volt_t battVoltage = frc::RobotController::GetBatteryVoltage();
for (int i = 0; i < driveInputs.size(); i++) {
units::volt_t input = inputs[i];
driveInputs[i] = std::clamp(input, -battVoltage, battVoltage);
}
}
void SwerveDriveSim::SetSteerInputs(
const std::array<units::volt_t, numModules>& inputs) {
units::volt_t battVoltage = frc::RobotController::GetBatteryVoltage();
for (int i = 0; i < steerInputs.size(); i++) {
units::volt_t input = inputs[i];
steerInputs[i] = std::clamp(input, -battVoltage, battVoltage);
}
}
Eigen::Matrix<double, 2, 1> SwerveDriveSim::CalculateX(
const Eigen::Matrix<double, 2, 2>& discA,
const Eigen::Matrix<double, 2, 1>& discB,
const Eigen::Matrix<double, 2, 1>& x, units::volt_t input,
units::volt_t kS) {
auto Ax = discA * x;
double nextStateVel = Ax(1, 0);
double inputToStop = nextStateVel / -discB(1, 0);
double ksSystemEffect =
std::clamp(inputToStop, -kS.to<double>(), kS.to<double>());
nextStateVel += discB(1, 0) * ksSystemEffect;
inputToStop = nextStateVel / -discB(1, 0);
double signToStop = sgn(inputToStop);
double inputSign = sgn(input.to<double>());
double ksInputEffect = 0;
if (std::abs(ksSystemEffect) < kS.to<double>()) {
double absInput = std::abs(input.to<double>());
ksInputEffect =
-std::clamp(kS.to<double>() * inputSign, -absInput, absInput);
} else if ((input.to<double>() * signToStop) > (inputToStop * signToStop)) {
double absInput = std::abs(input.to<double>() - inputToStop);
ksInputEffect =
-std::clamp(kS.to<double>() * inputSign, -absInput, absInput);
}
auto sF = Eigen::Matrix<double, 1, 1>{input.to<double>() + ksSystemEffect +
ksInputEffect};
auto Bu = discB * sF;
auto retVal = Ax + Bu;
return retVal;
}
void SwerveDriveSim::Update(units::second_t dt) {
Eigen::Matrix<double, 2, 2> driveDiscA;
Eigen::Matrix<double, 2, 1> driveDiscB;
frc::DiscretizeAB<2, 1>(drivePlant.A(), drivePlant.B(), dt, &driveDiscA,
&driveDiscB);
Eigen::Matrix<double, 2, 2> steerDiscA;
Eigen::Matrix<double, 2, 1> steerDiscB;
frc::DiscretizeAB<2, 1>(steerPlant.A(), steerPlant.B(), dt, &steerDiscA,
&steerDiscB);
std::array<frc::SwerveModulePosition, 4> moduleDeltas;
for (int i = 0; i < numModules; i++) {
double prevDriveStatePos = driveStates[i](0, 0);
driveStates[i] = CalculateX(driveDiscA, driveDiscB, driveStates[i],
driveInputs[i], driveKs);
double currentDriveStatePos = driveStates[i](0, 0);
steerStates[i] = CalculateX(steerDiscA, steerDiscB, steerStates[i],
steerInputs[i], steerKs);
double currentSteerStatePos = steerStates[i](0, 0);
moduleDeltas[i] = frc::SwerveModulePosition{
units::meter_t{currentDriveStatePos - prevDriveStatePos},
frc::Rotation2d{units::radian_t{currentSteerStatePos}}};
}
frc::Twist2d twist = kinematics.ToTwist2d(moduleDeltas);
pose = pose.Exp(twist);
omega = twist.dtheta / dt;
}
void SwerveDriveSim::Reset(const frc::Pose2d& pose, bool preserveMotion) {
this->pose = pose;
if (!preserveMotion) {
for (int i = 0; i < numModules; i++) {
driveStates[i] = Eigen::Matrix<double, 2, 1>{0, 0};
steerStates[i] = Eigen::Matrix<double, 2, 1>{0, 0};
}
omega = 0_rad_per_s;
}
}
void SwerveDriveSim::Reset(const frc::Pose2d& pose,
const std::array<Eigen::Matrix<double, 2, 1>,
numModules>& moduleDriveStates,
const std::array<Eigen::Matrix<double, 2, 1>,
numModules>& moduleSteerStates) {
this->pose = pose;
driveStates = moduleDriveStates;
steerStates = moduleSteerStates;
omega = kinematics.ToChassisSpeeds(GetModuleStates()).omega;
}
frc::Pose2d SwerveDriveSim::GetPose() const { return pose; }
std::array<frc::SwerveModulePosition, numModules>
SwerveDriveSim::GetModulePositions() const {
std::array<frc::SwerveModulePosition, numModules> positions;
for (int i = 0; i < numModules; i++) {
positions[i] = frc::SwerveModulePosition{
units::meter_t{driveStates[i](0, 0)},
frc::Rotation2d{units::radian_t{steerStates[i](0, 0)}}};
}
return positions;
}
std::array<frc::SwerveModulePosition, numModules>
SwerveDriveSim::GetNoisyModulePositions(units::meter_t driveStdDev,
units::radian_t steerStdDev) {
std::array<frc::SwerveModulePosition, numModules> positions;
for (int i = 0; i < numModules; i++) {
positions[i] = frc::SwerveModulePosition{
units::meter_t{driveStates[i](0, 0)} +
randDist(generator) * driveStdDev,
frc::Rotation2d{units::radian_t{steerStates[i](0, 0)} +
randDist(generator) * steerStdDev}};
}
return positions;
}
std::array<frc::SwerveModuleState, numModules>
SwerveDriveSim::GetModuleStates() {
std::array<frc::SwerveModuleState, numModules> states;
for (int i = 0; i < numModules; i++) {
states[i] = frc::SwerveModuleState{
units::meters_per_second_t{driveStates[i](1, 0)},
frc::Rotation2d{units::radian_t{steerStates[i](0, 0)}}};
}
return states;
}
std::array<Eigen::Matrix<double, 2, 1>, numModules>
SwerveDriveSim::GetDriveStates() const {
return driveStates;
}
std::array<Eigen::Matrix<double, 2, 1>, numModules>
SwerveDriveSim::GetSteerStates() const {
return steerStates;
}
units::radians_per_second_t SwerveDriveSim::GetOmega() const { return omega; }
units::ampere_t SwerveDriveSim::GetCurrentDraw(
const frc::DCMotor& motor, units::radians_per_second_t velocity,
units::volt_t inputVolts, units::volt_t batteryVolts) const {
units::volt_t effVolts = inputVolts - velocity / motor.Kv;
if (inputVolts >= 0_V) {
effVolts = std::clamp(effVolts, 0_V, inputVolts);
} else {
effVolts = std::clamp(effVolts, inputVolts, 0_V);
}
auto retVal = (inputVolts / batteryVolts) * (effVolts / motor.R);
return retVal;
}
std::array<units::ampere_t, numModules> SwerveDriveSim::GetDriveCurrentDraw()
const {
std::array<units::ampere_t, numModules> currents;
for (int i = 0; i < numModules; i++) {
units::radians_per_second_t speed =
units::radians_per_second_t{driveStates[i](1, 0)} * driveGearing /
driveWheelRadius.to<double>();
currents[i] = GetCurrentDraw(driveMotor, speed, driveInputs[i],
frc::RobotController::GetBatteryVoltage());
}
return currents;
}
std::array<units::ampere_t, numModules> SwerveDriveSim::GetSteerCurrentDraw()
const {
std::array<units::ampere_t, numModules> currents;
for (int i = 0; i < numModules; i++) {
units::radians_per_second_t speed =
units::radians_per_second_t{steerStates[i](1, 0) * steerGearing};
// TODO: If uncommented we get huge current values.. Not sure how to fix
// atm. :(
currents[i] = 20_A;
// currents[i] = GetCurrentDraw(steerMotor, speed, steerInputs[i],
// frc::RobotController::GetBatteryVoltage());
}
return currents;
}
units::ampere_t SwerveDriveSim::GetTotalCurrentDraw() const {
units::ampere_t total{0};
for (const auto& val : GetDriveCurrentDraw()) {
total += val;
}
for (const auto& val : GetSteerCurrentDraw()) {
total += val;
}
return total;
}

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/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "subsystems/SwerveModule.h"
#include <iostream>
#include <string>
#include <frc/MathUtil.h>
#include <frc/RobotController.h>
#include <frc/smartdashboard/SmartDashboard.h>
SwerveModule::SwerveModule(const constants::Swerve::ModuleConstants& consts)
: moduleConstants(consts),
driveMotor(frc::PWMSparkMax{moduleConstants.driveMotorId}),
driveEncoder(frc::Encoder{moduleConstants.driveEncoderA,
moduleConstants.driveEncoderB}),
steerMotor(frc::PWMSparkMax{moduleConstants.steerMotorId}),
steerEncoder(frc::Encoder{moduleConstants.steerEncoderA,
moduleConstants.steerEncoderB}),
driveEncoderSim(driveEncoder),
steerEncoderSim(steerEncoder) {
driveEncoder.SetDistancePerPulse(
constants::Swerve::kDriveDistPerPulse.to<double>());
steerEncoder.SetDistancePerPulse(
constants::Swerve::kSteerRadPerPulse.to<double>());
steerPIDController.EnableContinuousInput(-std::numbers::pi, std::numbers::pi);
}
void SwerveModule::Periodic() {
units::volt_t steerPID = units::volt_t{
steerPIDController.Calculate(GetAbsoluteHeading().Radians().to<double>(),
desiredState.angle.Radians().to<double>())};
steerMotor.SetVoltage(steerPID);
units::volt_t driveFF =
constants::Swerve::kDriveFF.Calculate(desiredState.speed);
units::volt_t drivePID{0};
if (!openLoop) {
drivePID = units::volt_t{drivePIDController.Calculate(
driveEncoder.GetRate(), desiredState.speed.to<double>())};
}
driveMotor.SetVoltage(driveFF + drivePID);
}
void SwerveModule::SetDesiredState(const frc::SwerveModuleState& newState,
bool shouldBeOpenLoop, bool steerInPlace) {
frc::Rotation2d currentRotation = GetAbsoluteHeading();
frc::SwerveModuleState optimizedState =
frc::SwerveModuleState::Optimize(newState, currentRotation);
desiredState = optimizedState;
}
frc::Rotation2d SwerveModule::GetAbsoluteHeading() const {
return frc::Rotation2d{units::radian_t{steerEncoder.GetDistance()}};
}
frc::SwerveModuleState SwerveModule::GetState() const {
return frc::SwerveModuleState{driveEncoder.GetRate() * 1_mps,
GetAbsoluteHeading()};
}
frc::SwerveModulePosition SwerveModule::GetPosition() const {
return frc::SwerveModulePosition{driveEncoder.GetDistance() * 1_m,
GetAbsoluteHeading()};
}
units::volt_t SwerveModule::GetDriveVoltage() const {
return driveMotor.Get() * frc::RobotController::GetBatteryVoltage();
}
units::volt_t SwerveModule::GetSteerVoltage() const {
return steerMotor.Get() * frc::RobotController::GetBatteryVoltage();
}
units::ampere_t SwerveModule::GetDriveCurrentSim() const {
return driveCurrentSim;
}
units::ampere_t SwerveModule::GetSteerCurrentSim() const {
return steerCurrentSim;
}
constants::Swerve::ModuleConstants SwerveModule::GetModuleConstants() const {
return moduleConstants;
}
void SwerveModule::Log() {
frc::SwerveModuleState state = GetState();
std::string table =
"Module " + std::to_string(moduleConstants.moduleNum) + "/";
frc::SmartDashboard::PutNumber(table + "Steer Degrees",
frc::AngleModulus(state.angle.Radians())
.convert<units::degrees>()
.to<double>());
frc::SmartDashboard::PutNumber(
table + "Steer Target Degrees",
units::radian_t{steerPIDController.GetSetpoint()}
.convert<units::degrees>()
.to<double>());
frc::SmartDashboard::PutNumber(
table + "Drive Velocity Feet",
state.speed.convert<units::feet_per_second>().to<double>());
frc::SmartDashboard::PutNumber(
table + "Drive Velocity Target Feet",
desiredState.speed.convert<units::feet_per_second>().to<double>());
frc::SmartDashboard::PutNumber(table + "Drive Current",
driveCurrentSim.to<double>());
frc::SmartDashboard::PutNumber(table + "Steer Current",
steerCurrentSim.to<double>());
}
void SwerveModule::SimulationUpdate(
units::meter_t driveEncoderDist,
units::meters_per_second_t driveEncoderRate, units::ampere_t driveCurrent,
units::radian_t steerEncoderDist,
units::radians_per_second_t steerEncoderRate,
units::ampere_t steerCurrent) {
driveEncoderSim.SetDistance(driveEncoderDist.to<double>());
driveEncoderSim.SetRate(driveEncoderRate.to<double>());
driveCurrentSim = driveCurrent;
steerEncoderSim.SetDistance(steerEncoderDist.to<double>());
steerEncoderSim.SetRate(steerEncoderRate.to<double>());
steerCurrentSim = steerCurrent;
}

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@@ -0,0 +1,4 @@
Files placed in this directory will be deployed to the RoboRIO into the
'deploy' directory in the home folder. Use the 'frc::filesystem::GetDeployDirectory'
function from the 'frc/Filesystem.h' header to get a proper path relative to the deploy
directory.

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@@ -0,0 +1,118 @@
/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <numbers>
#include <frc/apriltag/AprilTagFieldLayout.h>
#include <frc/apriltag/AprilTagFields.h>
#include <frc/controller/SimpleMotorFeedforward.h>
#include <frc/geometry/Transform3d.h>
#include <frc/geometry/Translation2d.h>
#include <units/length.h>
namespace constants {
namespace Vision {
inline constexpr std::string_view kCameraName{"YOUR CAMERA NAME"};
inline const frc::Transform3d kRobotToCam{
frc::Translation3d{0.5_m, 0.0_m, 0.5_m},
frc::Rotation3d{0_rad, -30_deg, 0_rad}};
inline const frc::AprilTagFieldLayout kTagLayout{
frc::LoadAprilTagLayoutField(frc::AprilTagField::k2024Crescendo)};
inline const Eigen::Matrix<double, 3, 1> kSingleTagStdDevs{4, 4, 8};
inline const Eigen::Matrix<double, 3, 1> kMultiTagStdDevs{0.5, 0.5, 1};
} // namespace Vision
namespace Swerve {
inline constexpr units::meter_t kTrackWidth{18.5_in};
inline constexpr units::meter_t kTrackLength{18.5_in};
inline constexpr units::meter_t kRobotWidth{25_in + 3.25_in * 2};
inline constexpr units::meter_t kRobotLength{25_in + 3.25_in * 2};
inline constexpr units::meters_per_second_t kMaxLinearSpeed{15.5_fps};
inline constexpr units::radians_per_second_t kMaxAngularSpeed{720_deg_per_s};
inline constexpr units::meter_t kWheelDiameter{4_in};
inline constexpr units::meter_t kWheelCircumference{kWheelDiameter *
std::numbers::pi};
inline constexpr double kDriveGearRatio = 6.75;
inline constexpr double kSteerGearRatio = 12.8;
inline constexpr units::meter_t kDriveDistPerPulse =
kWheelCircumference / 1024.0 / kDriveGearRatio;
inline constexpr units::radian_t kSteerRadPerPulse =
units::radian_t{2 * std::numbers::pi} / 1024.0;
inline constexpr double kDriveKP = 1.0;
inline constexpr double kDriveKI = 0.0;
inline constexpr double kDriveKD = 0.0;
inline constexpr double kSteerKP = 20.0;
inline constexpr double kSteerKI = 0.0;
inline constexpr double kSteerKD = 0.25;
inline const frc::SimpleMotorFeedforward<units::meters> kDriveFF{
0.25_V, 2.5_V / 1_mps, 0.3_V / 1_mps_sq};
inline const frc::SimpleMotorFeedforward<units::radians> kSteerFF{
0.5_V, 0.25_V / 1_rad_per_s, 0.01_V / 1_rad_per_s_sq};
struct ModuleConstants {
public:
const int moduleNum;
const int driveMotorId;
const int driveEncoderA;
const int driveEncoderB;
const int steerMotorId;
const int steerEncoderA;
const int steerEncoderB;
const double angleOffset;
const frc::Translation2d centerOffset;
ModuleConstants(int moduleNum, int driveMotorId, int driveEncoderA,
int driveEncoderB, int steerMotorId, int steerEncoderA,
int steerEncoderB, double angleOffset, units::meter_t xOffset,
units::meter_t yOffset)
: moduleNum(moduleNum),
driveMotorId(driveMotorId),
driveEncoderA(driveEncoderA),
driveEncoderB(driveEncoderB),
steerMotorId(steerMotorId),
steerEncoderA(steerEncoderA),
steerEncoderB(steerEncoderB),
angleOffset(angleOffset),
centerOffset(frc::Translation2d{xOffset, yOffset}) {}
};
inline const ModuleConstants FL_CONSTANTS{
1, 0, 0, 1, 1, 2, 3, 0, kTrackLength / 2, kTrackWidth / 2};
inline const ModuleConstants FR_CONSTANTS{
2, 2, 4, 5, 3, 6, 7, 0, kTrackLength / 2, -kTrackWidth / 2};
inline const ModuleConstants BL_CONSTANTS{
3, 4, 8, 9, 5, 10, 11, 0, -kTrackLength / 2, kTrackWidth / 2};
inline const ModuleConstants BR_CONSTANTS{
4, 6, 12, 13, 7, 14, 15, 0, -kTrackLength / 2, -kTrackWidth / 2};
} // namespace Swerve
} // namespace constants

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@@ -28,27 +28,33 @@
#include <frc/TimedRobot.h>
#include <frc/XboxController.h>
#include <frc/controller/PIDController.h>
#include <frc/drive/DifferentialDrive.h>
#include <frc/motorcontrol/PWMVictorSPX.h>
#include <units/angle.h>
#include <units/length.h>
#include "Constants.h"
#include "VisionSim.h"
#include "subsystems/SwerveDrive.h"
class Robot : public frc::TimedRobot {
public:
void TeleopPeriodic() override;
void RobotInit() override;
void RobotPeriodic() override;
void DisabledInit() override;
void DisabledPeriodic() override;
void DisabledExit() override;
void AutonomousInit() override;
void AutonomousPeriodic() override;
void AutonomousExit() override;
void TeleopInit() override;
void TeleopPeriodic() override;
void TeleopExit() override;
void TestInit() override;
void TestPeriodic() override;
void TestExit() override;
void SimulationPeriodic() override;
private:
// Change this to match the name of your camera as shown in the web UI
photon::PhotonCamera camera{"WPI2024"};
// PID constants should be tuned per robot
frc::PIDController controller{.1, 0, 0};
frc::XboxController xboxController{0};
// Drive motors
frc::PWMVictorSPX leftMotor{0};
frc::PWMVictorSPX rightMotor{1};
frc::DifferentialDrive drive{leftMotor, rightMotor};
photon::PhotonCamera camera{constants::Vision::kCameraName};
SwerveDrive drivetrain{};
VisionSim vision{&camera};
frc::XboxController controller{0};
static constexpr double VISION_TURN_kP = 0.01;
};

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@@ -0,0 +1,87 @@
/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <photon/PhotonCamera.h>
#include <photon/PhotonPoseEstimator.h>
#include <photon/estimation/VisionEstimation.h>
#include <photon/simulation/VisionSystemSim.h>
#include <photon/simulation/VisionTargetSim.h>
#include <photon/targeting/PhotonPipelineResult.h>
#include <limits>
#include <memory>
#include <frc/apriltag/AprilTagFieldLayout.h>
#include <frc/apriltag/AprilTagFields.h>
#include "Constants.h"
class VisionSim {
public:
explicit VisionSim(photon::PhotonCamera* camera) {
if (frc::RobotBase::IsSimulation()) {
visionSim = std::make_unique<photon::VisionSystemSim>("main");
visionSim->AddAprilTags(constants::Vision::kTagLayout);
cameraProp = std::make_unique<photon::SimCameraProperties>();
cameraProp->SetCalibration(320, 240, frc::Rotation2d{90_deg});
cameraProp->SetCalibError(.35, .10);
cameraProp->SetFPS(70_Hz);
cameraProp->SetAvgLatency(30_ms);
cameraProp->SetLatencyStdDev(15_ms);
cameraSim =
std::make_shared<photon::PhotonCameraSim>(camera, *cameraProp.get());
visionSim->AddCamera(cameraSim.get(), constants::Vision::kRobotToCam);
cameraSim->EnableDrawWireframe(true);
}
}
photon::PhotonPipelineResult GetLatestResult() { return m_latestResult; }
void SimPeriodic(frc::Pose2d robotSimPose) {
visionSim->Update(robotSimPose);
}
void ResetSimPose(frc::Pose2d pose) {
if (frc::RobotBase::IsSimulation()) {
visionSim->ResetRobotPose(pose);
}
}
frc::Field2d& GetSimDebugField() { return visionSim->GetDebugField(); }
private:
std::unique_ptr<photon::VisionSystemSim> visionSim;
std::unique_ptr<photon::SimCameraProperties> cameraProp;
std::shared_ptr<photon::PhotonCameraSim> cameraSim;
// The most recent result, cached for calculating std devs
photon::PhotonPipelineResult m_latestResult;
};

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@@ -0,0 +1,80 @@
/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <frc/ADXRS450_Gyro.h>
#include <frc/SPI.h>
#include <frc/estimator/SwerveDrivePoseEstimator.h>
#include <frc/kinematics/SwerveDriveKinematics.h>
#include <frc/simulation/ADXRS450_GyroSim.h>
#include "SwerveDriveSim.h"
#include "SwerveModule.h"
class SwerveDrive {
public:
SwerveDrive();
void Periodic();
void Drive(units::meters_per_second_t vx, units::meters_per_second_t vy,
units::radians_per_second_t omega);
void SetChassisSpeeds(const frc::ChassisSpeeds& targetChassisSpeeds,
bool openLoop, bool steerInPlace);
void SetModuleStates(
const std::array<frc::SwerveModuleState, 4>& desiredStates, bool openLoop,
bool steerInPlace);
void Stop();
void ResetPose(const frc::Pose2d& pose, bool resetSimPose);
frc::Pose2d GetPose() const;
frc::Rotation2d GetHeading() const;
frc::Rotation2d GetGyroYaw() const;
frc::ChassisSpeeds GetChassisSpeeds() const;
std::array<frc::SwerveModuleState, 4> GetModuleStates() const;
std::array<frc::SwerveModulePosition, 4> GetModulePositions() const;
std::array<frc::Pose2d, 4> GetModulePoses() const;
void Log();
void SimulationPeriodic();
frc::Pose2d GetSimPose() const;
units::ampere_t GetCurrentDraw() const;
private:
std::array<SwerveModule, 4> swerveMods{
SwerveModule{constants::Swerve::FL_CONSTANTS},
SwerveModule{constants::Swerve::FR_CONSTANTS},
SwerveModule{constants::Swerve::BL_CONSTANTS},
SwerveModule{constants::Swerve::BR_CONSTANTS}};
frc::SwerveDriveKinematics<4> kinematics{
swerveMods[0].GetModuleConstants().centerOffset,
swerveMods[1].GetModuleConstants().centerOffset,
swerveMods[2].GetModuleConstants().centerOffset,
swerveMods[3].GetModuleConstants().centerOffset,
};
frc::ADXRS450_Gyro gyro{frc::SPI::Port::kOnboardCS0};
frc::SwerveDrivePoseEstimator<4> poseEstimator;
frc::ChassisSpeeds targetChassisSpeeds{};
frc::sim::ADXRS450_GyroSim gyroSim;
SwerveDriveSim swerveDriveSim;
units::ampere_t totalCurrentDraw{0};
};

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/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <random>
#include <frc/controller/SimpleMotorFeedforward.h>
#include <frc/kinematics/SwerveDriveKinematics.h>
#include <frc/system/LinearSystem.h>
#include <frc/system/plant/DCMotor.h>
#include <units/voltage.h>
static constexpr int numModules{4};
class SwerveDriveSim {
public:
SwerveDriveSim(const frc::SimpleMotorFeedforward<units::meters>& driveFF,
const frc::DCMotor& driveMotor, double driveGearing,
units::meter_t driveWheelRadius,
const frc::SimpleMotorFeedforward<units::radians>& steerFF,
const frc::DCMotor& steerMotor, double steerGearing,
const frc::SwerveDriveKinematics<numModules>& kinematics);
SwerveDriveSim(const frc::LinearSystem<2, 1, 2>& drivePlant,
units::volt_t driveKs, const frc::DCMotor& driveMotor,
double driveGearing, units::meter_t driveWheelRadius,
const frc::LinearSystem<2, 1, 2>& steerPlant,
units::volt_t steerKs, const frc::DCMotor& steerMotor,
double steerGearing,
const frc::SwerveDriveKinematics<numModules>& kinematics);
void SetDriveInputs(const std::array<units::volt_t, numModules>& inputs);
void SetSteerInputs(const std::array<units::volt_t, numModules>& inputs);
static Eigen::Matrix<double, 2, 1> CalculateX(
const Eigen::Matrix<double, 2, 2>& discA,
const Eigen::Matrix<double, 2, 1>& discB,
const Eigen::Matrix<double, 2, 1>& x, units::volt_t input,
units::volt_t kS);
void Update(units::second_t dt);
void Reset(const frc::Pose2d& pose, bool preserveMotion);
void Reset(const frc::Pose2d& pose,
const std::array<Eigen::Matrix<double, 2, 1>, numModules>&
moduleDriveStates,
const std::array<Eigen::Matrix<double, 2, 1>, numModules>&
moduleSteerStates);
frc::Pose2d GetPose() const;
std::array<frc::SwerveModulePosition, numModules> GetModulePositions() const;
std::array<frc::SwerveModulePosition, numModules> GetNoisyModulePositions(
units::meter_t driveStdDev, units::radian_t steerStdDev);
std::array<frc::SwerveModuleState, numModules> GetModuleStates();
std::array<Eigen::Matrix<double, 2, 1>, numModules> GetDriveStates() const;
std::array<Eigen::Matrix<double, 2, 1>, numModules> GetSteerStates() const;
units::radians_per_second_t GetOmega() const;
units::ampere_t GetCurrentDraw(const frc::DCMotor& motor,
units::radians_per_second_t velocity,
units::volt_t inputVolts,
units::volt_t batteryVolts) const;
std::array<units::ampere_t, numModules> GetDriveCurrentDraw() const;
std::array<units::ampere_t, numModules> GetSteerCurrentDraw() const;
units::ampere_t GetTotalCurrentDraw() const;
private:
std::random_device rd{};
std::mt19937 generator{rd()};
std::normal_distribution<double> randDist{0.0, 1.0};
const frc::LinearSystem<2, 1, 2> drivePlant;
const units::volt_t driveKs;
const frc::DCMotor driveMotor;
const double driveGearing;
const units::meter_t driveWheelRadius;
const frc::LinearSystem<2, 1, 2> steerPlant;
const units::volt_t steerKs;
const frc::DCMotor steerMotor;
const double steerGearing;
const frc::SwerveDriveKinematics<numModules> kinematics;
std::array<units::volt_t, numModules> driveInputs{};
std::array<Eigen::Matrix<double, 2, 1>, numModules> driveStates{};
std::array<units::volt_t, numModules> steerInputs{};
std::array<Eigen::Matrix<double, 2, 1>, numModules> steerStates{};
frc::Pose2d pose{frc::Pose2d{}};
units::radians_per_second_t omega{0};
};

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/*
* MIT License
*
* Copyright (c) PhotonVision
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <frc/Encoder.h>
#include <frc/controller/PIDController.h>
#include <frc/kinematics/SwerveModulePosition.h>
#include <frc/kinematics/SwerveModuleState.h>
#include <frc/motorcontrol/PWMSparkMax.h>
#include <frc/simulation/EncoderSim.h>
#include <units/current.h>
#include "Constants.h"
class SwerveModule {
public:
explicit SwerveModule(const constants::Swerve::ModuleConstants& consts);
void Periodic();
void SetDesiredState(const frc::SwerveModuleState& newState,
bool shouldBeOpenLoop, bool steerInPlace);
frc::Rotation2d GetAbsoluteHeading() const;
frc::SwerveModuleState GetState() const;
frc::SwerveModulePosition GetPosition() const;
units::volt_t GetDriveVoltage() const;
units::volt_t GetSteerVoltage() const;
units::ampere_t GetDriveCurrentSim() const;
units::ampere_t GetSteerCurrentSim() const;
constants::Swerve::ModuleConstants GetModuleConstants() const;
void Log();
void SimulationUpdate(units::meter_t driveEncoderDist,
units::meters_per_second_t driveEncoderRate,
units::ampere_t driveCurrent,
units::radian_t steerEncoderDist,
units::radians_per_second_t steerEncoderRate,
units::ampere_t steerCurrent);
private:
const constants::Swerve::ModuleConstants moduleConstants;
frc::PWMSparkMax driveMotor;
frc::Encoder driveEncoder;
frc::PWMSparkMax steerMotor;
frc::Encoder steerEncoder;
frc::SwerveModuleState desiredState{};
bool openLoop{false};
frc::PIDController drivePIDController{constants::Swerve::kDriveKP,
constants::Swerve::kDriveKI,
constants::Swerve::kDriveKD};
frc::PIDController steerPIDController{constants::Swerve::kSteerKP,
constants::Swerve::kSteerKI,
constants::Swerve::kSteerKD};
frc::sim::EncoderSim driveEncoderSim;
units::ampere_t driveCurrentSim{0};
frc::sim::EncoderSim steerEncoderSim;
units::ampere_t steerCurrentSim{0};
};

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