174 lines
6.5 KiB
C++

/**
* @file include/lemlib/chassis/chassis.hpp
* @author LemLib Team
* @brief Chassis class declarations
* @version 0.4.5
* @date 2023-01-23
*
* @copyright Copyright (c) 2023
*
*/
#pragma once
#include "pros/motors.hpp"
#include "pros/imu.hpp"
#include "lemlib/chassis/trackingWheel.hpp"
#include "lemlib/pose.hpp"
namespace lemlib {
/**
* @brief Struct containing all the sensors used for odometry
*
* The sensors are stored in a struct so that they can be easily passed to the chassis class
* The variables are pointers so that they can be set to nullptr if they are not used
* Otherwise the chassis class would have to have a constructor for each possible combination of sensors
*
* @param vertical1 pointer to the first vertical tracking wheel
* @param vertical2 pointer to the second vertical tracking wheel
* @param horizontal1 pointer to the first horizontal tracking wheel
* @param horizontal2 pointer to the second horizontal tracking wheel
* @param imu pointer to the IMU
*/
typedef struct {
TrackingWheel* vertical1;
TrackingWheel* vertical2;
TrackingWheel* horizontal1;
TrackingWheel* horizontal2;
pros::Imu* imu;
} OdomSensors_t;
/**
* @brief Struct containing constants for a chassis controller
*
* The constants are stored in a struct so that they can be easily passed to the chassis class
* Set a constant to 0 and it will be ignored
*
* @param kP proportional constant for the chassis controller
* @param kD derivative constant for the chassis controller
* @param smallError the error at which the chassis controller will switch to a slower control loop
* @param smallErrorTimeout the time the chassis controller will wait before switching to a slower control loop
* @param largeError the error at which the chassis controller will switch to a faster control loop
* @param largeErrorTimeout the time the chassis controller will wait before switching to a faster control loop
* @param slew the maximum acceleration of the chassis controller
*/
typedef struct {
float kP;
float kD;
float smallError;
float smallErrorTimeout;
float largeError;
float largeErrorTimeout;
float slew;
} ChassisController_t;
/**
* @brief Struct containing constants for a drivetrain
*
* The constants are stored in a struct so that they can be easily passed to the chassis class
* Set a constant to 0 and it will be ignored
*
* @param leftMotors pointer to the left motors
* @param rightMotors pointer to the right motors
* @param trackWidth the track width of the robot
* @param wheelDiameter the diameter of the wheels (2.75, 3.25, 4, 4.125)
* @param rpm the rpm of the wheels
*/
typedef struct {
pros::Motor_Group* leftMotors;
pros::Motor_Group* rightMotors;
float trackWidth;
float wheelDiameter;
float rpm;
} Drivetrain_t;
/**
* @brief Chassis class
*
*/
class Chassis {
public:
/**
* @brief Construct a new Chassis
*
* @param drivetrain drivetrain to be used for the chassis
* @param lateralSettings settings for the lateral controller
* @param angularSettings settings for the angular controller
* @param sensors sensors to be used for odometry
*/
Chassis(Drivetrain_t drivetrain, ChassisController_t lateralSettings, ChassisController_t angularSettings,
OdomSensors_t sensors);
/**
* @brief Calibrate the chassis sensors
*
*/
void calibrate();
/**
* @brief Set the pose of the chassis
*
* @param x new x value
* @param y new y value
* @param theta new theta value
* @param radians true if theta is in radians, false if not. False by default
*/
void setPose(double x, double y, double theta, bool radians = false);
/**
* @brief Set the pose of the chassis
*
* @param pose the new pose
* @param radians whether pose theta is in radians (true) or not (false). false by default
*/
void setPose(Pose pose, bool radians = false);
/**
* @brief Get the pose of the chassis
*
* @param radians whether theta should be in radians (true) or degrees (false). false by default
* @return Pose
*/
Pose getPose(bool radians = false);
/**
* @brief Turn the chassis so it is facing the target point
*
* The PID logging id is "angularPID"
*
* @param x x location
* @param y y location
* @param timeout longest time the robot can spend moving
* @param reversed whether the robot should turn in the opposite direction. false by default
* @param maxSpeed the maximum speed the robot can turn at. Default is 200
* @param log whether the chassis should log the turnTo function. false by default
*/
void turnTo(float x, float y, int timeout, bool reversed = false, float maxSpeed = 127, bool log = false);
/**
* @brief Move the chassis towards the target point
*
* The PID logging ids are "angularPID" and "lateralPID"
*
* @param x x location
* @param y y location
* @param timeout longest time the robot can spend moving
* @param maxSpeed the maximum speed the robot can move at
* @param log whether the chassis should log the turnTo function. false by default
*/
void moveTo(float x, float y, int timeout, float maxSpeed = 200, bool log = false);
/**
* @brief Move the chassis along a path
*
* @param filePath file path to the path. No need to preface it with /usd/
* @param timeout the maximum time the robot can spend moving
* @param lookahead the lookahead distance. Units in inches. Larger values will make the robot move faster but
* will follow the path less accurately
* @param reverse whether the robot should follow the path in reverse. false by default
* @param maxSpeed the maximum speed the robot can move at
* @param log whether the chassis should log the path on a log file. false by default.
*/
void follow(const char* filePath, int timeout, float lookahead, bool reverse = false, float maxSpeed = 127,
bool log = false);
private:
ChassisController_t lateralSettings;
ChassisController_t angularSettings;
Drivetrain_t drivetrain;
OdomSensors_t odomSensors;
};
} // namespace lemlib