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//minimum voltage of 11V * .2 |
/*if (std::abs(slewRate) != .12) { |
if (std::abs(motorPower) < 0.2) { |
if (motorPower > 0) { |
motorPower = 0.2; |
} else { |
motorPower = -0.2; |
} |
} |
}*/ |
//apply motor voltages |
Left1.spin(forward, 11 * motorPower * -1, volt); |
Left2.spin(forward, 11 * motorPower * -1, volt); |
Left3.spin(forward, 11 * motorPower * -1, volt); |
Right1.spin(forward, 11 * motorPower, volt); |
Right2.spin(forward, 11 * motorPower, volt); |
Right3.spin(forward, 11 * motorPower, volt); |
//update histories |
errorHistory.push_back(error); |
powerHistory.push_back(motorPower); |
time += 20; |
//update final variables |
//printController(error); |
//break out of the loop if we have reached the target or B is pressed |
//we have reached the target if the error is less than 5 and the previous error is similar |
if (absolute) { |
if (Controller1.ButtonB.pressing() || exitPID || ((std::abs(error) < 0.4) && std::abs(error - prevError) < 1)) { |
break; |
} |
} else { |
if (Controller1.ButtonB.pressing() || exitPID || ((std::abs(error) < 0.5) && std::abs(error - prevError) < 2)) { |
break; |
} |
} |
prevMotorPower = motorPower; |
prevError = error; |
graphPID(errorHistory, powerHistory, driveDistance, error, time); |
//don't hog CPU |
wait(20, msec); |
} |
wait(20, msec); //allow time for status update to draw itself |
//graph the PID at the end |
drawMode = 1; |
graphPID(errorHistory, powerHistory, driveDistance, error, time); |
Left1.stop(); |
Left2.stop(); |
Left3.stop(); |
Right1.stop(); |
Right2.stop(); |
Right3.stop(); |
return 0; |
} |
void aDrive(float distance) { |
driveDistance = distance; |
drivePID(); |
} |
void aTurn(float distance) { |
driveDistance = distance; |
turnPID(false); |
} |
void aDriveFor(int speed, int time) { |
//drive the robot forward (or backward if speed is negative) for a specified amount of milliseconds |
Left1.spin(forward); |
Left2.spin(forward); |
Left3.spin(forward); |
Right1.spin(forward); |
Right2.spin(forward); |
Right3.spin(forward); |
Left1.setVelocity(speed, percent); |
Left2.setVelocity(speed, percent); |
Left3.setVelocity(speed, percent); |
Right1.setVelocity(speed, percent); |
Right2.setVelocity(speed, percent); |
Right3.setVelocity(speed, percent); |
wait(time, msec); |
Left1.stop(); |
Left2.stop(); |
Left3.stop(); |
Right1.stop(); |
Right2.stop(); |
Right3.stop(); |
} |
//below code copied from jpearman on vexforum |
int screen_origin_x = 150; |
int screen_origin_y = 20; |
int screen_width = 316; |
int screen_height = 212; |
// function to draw a single object |
void drawObject( vision::object &obj, vex::color c ) { |
int labelOffset = 0; |
Brain.Screen.setPenColor( vex::color::yellow ); |
Brain.Screen.drawRectangle( screen_origin_x + obj.originX, screen_origin_y + obj.originY, obj.width, obj.height, c ); |
Brain.Screen.setFont( vex::fontType::mono12 ); |
if( obj.originX > 280 ) |
labelOffset = -40; |
if( obj.originY > 10 ) |
Brain.Screen.printAt( screen_origin_x + obj.originX + labelOffset, screen_origin_y + obj.originY-3, "Sig %o", obj.id ); |
else |
Brain.Screen.printAt( screen_origin_x + obj.originX + labelOffset, screen_origin_y + obj.originY+10, "Sig %o", obj.id ); |
} |
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