I am trying to add methods to help with reading our robots actual speed off of a CANJaguar in fps. The issue I am having now is that it is not building becasue it needs a constructor, but if I am inheriting the class shouldn't they already exist. What i want to be able to do is when i call a CANJaguar object, e.g. leftMotor.getFps(), it will return the fps data to me. This is my code so far.
Any help is greatly appreciated.
Code:
/*
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package edu.wpi.first.wpilibj;
import edu.wpi.first.wpilibj.can.CANTimeoutException;
import edu.wpi.first.wpilibj.can.JaguarCANProtocol;
/**
*
* @author rudun
*/
public class fps extends CANJaguar {
final static double PI = Math.PI;
private double WheelSize;
/**
* Get the speed of your robot.
*
* @return The speed of the robot in fps.
*/
public double getFps() throws CANTimeoutException {
byte[] dataBuffer = new byte[8];
byte dataSize;
double rpms;
dataSize = getTransaction(JaguarCANProtocol.LM_API_STATUS_SPD, dataBuffer);
if (dataSize == 4) {
rpms = unpackFXP16_16(dataBuffer);
} else {
rpms = 0.0;
}
double fps = 0;
fps = (rpms *(WheelSize * PI))/(60 * 12);
return fps;
}
public void setWheelSize(double WheelSizeInInches) {
WheelSize = WheelSizeInInches;
}
}
and this is my current compiler output
Code:
init:
clean:
init:
clean:
Created dir: C:\Users\kyle\Documents\NetBeansProjects\fpstest\build
Compiling 2 source files to C:\Users\kyle\Documents\NetBeansProjects\fpstest\build
C:\Users\kyle\Documents\NetBeansProjects\fpstest\src\edu\wpi\first\wpilibj\fps.java:13: error: no suitable constructor found for CANJaguar()
public class fps extends CANJaguar {
constructor CANJaguar.CANJaguar(int,ControlMode) is not applicable
(actual and formal argument lists differ in length)
constructor CANJaguar.CANJaguar(int) is not applicable
(actual and formal argument lists differ in length)
1 error
C:\Users\kyle\sunspotfrcsdk\ant\compile.xml:48: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 8 seconds)