Our Function Library (Fall 2020)
A
function library is a set of functions, variables, constants, and algorithms that are
included with the basic RobotC programs. The functions and variables in the library can then be referenced and called upon as needed in your program.
The purpose of keeping these functions and variables in one file is to make your programs more modular. Many programs can refer to and use the same function library.
Driving Forward and Turning
// JavaScript Function Library
// Created: Fall 2020
function driveBackward(inches) {
syncMotors(B, C, 30) // Start driving backward
resetEncoder(B) // Reset the encoder
while( abs(encoderValue(B)) < inches * 58 ) { // Convert inches to degrees by multiplying by 58
clearScreen() // Clear the screen
drawText( 10, 10, encoderValue(B), 2 ) // Show the encoder value
sleep(100) // Move for a period of time
} // Repeat the loop
}
function driveForward(inches) {
resetEncoder(B) // Reset the encoder
syncMotors(B, C, -30) // Start driving forward
while( abs(encoderValue(B)) < inches * 58 ) { // Convert inches to degrees by multiplying by 58
clearScreen() // Clear the screen
drawText( 10, 10, encoderValue(B)) // Show the encoder value
sleep(100) // Move for a period of time
} // Repeat the loop
}
function swingTurnCounterClockwise(degrees) {
syncMotors( B, C, 30, -100 ) // Start a swing turn
resetGyroSensor() // Reset the sensor
while( abs(gyroSensorValue()) < degrees ) { // While the absolute value of the sensor is less than 90 degrees
sleep(50) // Move for a period of time
} // Repeat the loop
}
function swingTurnClockwise(degrees) {
syncMotors( B, C, 30, 100 ) // Start a swing turn
resetGyroSensor() // Reset the sensor
while( abs(gyroSensorValue()) < degrees ) { // While the absolute value of the sensor is less than 90 degrees
sleep(50) // Move for a period of time
} // Repeat the loop
}Using the Functions in your Program
driveForward(10)
swingTurnClockwise(60)
driveBackward(10)
swingTurnCounterClockwise(60)
driveForward(10)
swingTurnClockwise(60)
driveBackward(10)
swingTurnCounterClockwise(60)
driveForward(10)
swingTurnClockwise(60)
driveBackward(10)
swingTurnCounterClockwise(60)
driveForward(10)
swingTurnClockwise(60)
driveBackward(10)
swingTurnCounterClockwise(60)
