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RightMotors.stop();
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return 0;
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}
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void aDrive(float distance) {
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driveDistance = distance;
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drivePID();
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}
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void aTurn(float distance) {
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driveDistance = distance;
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turnPID();
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}
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void aDriveFor(int speed, int time) {
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//drive the robot forward (or backward if speed is negative) for a specified amount of milliseconds
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RightMotors.spin(forward);
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LeftMotors.spin(forward);
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RightMotors.setVelocity(speed, percent);
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LeftMotors.setVelocity(speed, percent);
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wait(time, msec);
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LeftMotors.stop();
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RightMotors.stop();
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}
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void fireIndexer() {
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Indexer.spin(forward, 12, volt);
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wait(130, msec);
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Indexer.spin(forward, 6, volt);
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wait(60, msec);
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Indexer.spin(reverse, 6, volt);
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wait(100, msec);
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Indexer.stop();
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}
|
//below code copied from jpearman on vexforum
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int screen_origin_x = 150;
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int screen_origin_y = 20;
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int screen_width = 316;
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int screen_height = 212;
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// function to draw a single object
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void drawObject( vision::object &obj, vex::color c ) {
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int labelOffset = 0;
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Brain.Screen.setPenColor( vex::color::yellow );
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Brain.Screen.drawRectangle( screen_origin_x + obj.originX, screen_origin_y + obj.originY, obj.width, obj.height, c );
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Brain.Screen.setFont( vex::fontType::mono12 );
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if( obj.originX > 280 )
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labelOffset = -40;
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if( obj.originY > 10 )
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Brain.Screen.printAt( screen_origin_x + obj.originX + labelOffset, screen_origin_y + obj.originY-3, "Sig %o", obj.id );
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else
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Brain.Screen.printAt( screen_origin_x + obj.originX + labelOffset, screen_origin_y + obj.originY+10, "Sig %o", obj.id );
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}
|
// function to draw all objects found
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void drawObjects( vision &v, vex::color c, bool clearScreen ) {
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if( clearScreen ) {
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Brain.Screen.setPenColor( vex::color::black );
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Brain.Screen.drawRectangle( screen_origin_x, screen_origin_y, screen_width, screen_height, vex::color::black );
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}
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for(int i=0;i<v.objectCount;i++)
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drawObject( v.objects[i], c );
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}
|
int alignToGoal() {
|
//aligns the robot to the goal using the vision sensor
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float finalValue;
|
//first of all, find the goal using the vision sensor
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do {
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int x = 0;
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int center = 158; // the goal should be at x=158 when lined up perfectly with the robot
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int maxArea = 0; //we will align to the signature with the highest area on the screen (generally the right one)
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int maxX = -1;
|
for (int k = 0; k < 5; k++) {
|
if (visionTrackRed) {
|
VisionSensor.takeSnapshot( VisionSensor__RED_GOAL );
|
//if this is the new highest area, then update the variable
|
int area = VisionSensor.largestObject.width * VisionSensor.largestObject.height;
|
if (area > maxArea && area > 400) {
|
maxArea = area;
|
maxX = VisionSensor.largestObject.originX + (VisionSensor.largestObject.width / 2);
|
}
|
}
|
if (visionTrackBlue) {
|
VisionSensor.takeSnapshot( VisionSensor__BLUE_GOAL );
|
int area = VisionSensor.largestObject.width * VisionSensor.largestObject.height;
|
if (area > maxArea && area > 400) {
|
maxArea = area;
|
maxX = VisionSensor.largestObject.originX + (VisionSensor.largestObject.width / 2);
|
}
|
}
|
wait(20, msec);
|
}
|
if (maxX == -1) {
|
//dont do anything if no goal is detected
|
x = center;
|
printControllerSetup();
|
Controller1.Screen.print("No goal found");
|
} else {
|
x = maxX;
|
}
|
float value = x / 316.0 * 60; //angle, in degrees, that we are at. 30 degrees is dead center
|
finalValue = (value - 30) * -7.55; //degree-to-PID units conversion
|
//only turn if we are off by a good bit (over 1 degree)
|
if (std::abs(finalValue) > 7) {
|
aTurn(finalValue);
|
}
|
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