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import robotrace.Vector;
import static java.lang.Math.*;
/**
* Implementation of a race track that is made from Bezier segments.
*/
class RaceTrack {
/**
* Array with control points for the O-track.
*/
private Vector[] controlPointsOTrack;
/**
* Array with control points for the L-track.
*/
private Vector[] controlPointsLTrack;
/**
* Array with control points for the C-track.
*/
private Vector[] controlPointsCTrack;
/**
* Array with control points for the custom track.
*/
private Vector[] controlPointsCustomTrack;
/**
* Constructs the race track, sets up display lists.
*/
public RaceTrack() {
// code goes here ...
}
/**
* Draws this track, based on the selected track number.
*/
public void draw(int trackNr) {
// The test track is selected
if (0 == trackNr) {
// code goes here ...
} else if (1 == trackNr) { // The O-track is selected
// code goes here ...
} else if (2 == trackNr) { // The L-track is selected
// code goes here ...
} else if (3 == trackNr) { // The C-track is selected
// code goes here ...
} else if (4 == trackNr) { // The custom track is selected
// code goes here ...
}
}
/**
* Returns the position of the curve at 0 <= {@code t} <= 1.
*/
public Vector getPoint(double t) {
return new Vector(10 * cos(2 * PI * t),
14 * sin(2 * PI * t),
1);
}
/**
* Returns the tangent of the curve at 0 <= {@code t} <= 1.
*/
public Vector getTangent(double t) {
// robot looks forward
return new Vector(0,
1,
1);
}
}
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