Brought in some fixes from the story31.2_merge branch.

main
fjc40 9 years ago
parent 60458f0f7a
commit d88c353213

@ -33,7 +33,7 @@ public class Race implements Runnable {
protected List<Leg> legs;
protected int boatsFinished = 0;
protected long totalTimeElapsed;
protected int scaleFactor = 3;
protected int scaleFactor = 15;
private long startTime;
private int raceId;
private int dnfChance = 0; //percentage chance a boat fails at each checkpoint
@ -63,6 +63,8 @@ public class Race implements Runnable {
this.windSpeed = 12;//TODO could use input parameters for these. And should fluctuate during race.
this.windDirection = 180;
}
/**
@ -257,11 +259,7 @@ public class Race implements Runnable {
double totalDistanceTravelledInTack = distanceTravelled + boat.getDistanceTravelledInTack();
double bound1 = (boat.calculateBearingToDestination() - 90) % 360;
double bound2 = (boat.calculateBearingToDestination() + 90) % 360;
//TODO the actual bearing bounds need to be the interval in which the boat won't go out of bounds.
bound1 = 0;
bound2 = 360;
boat.setTimeSinceTackChange(boat.getTimeSinceTackChange() + this.scaleFactor * millisecondsElapsed);
@ -273,23 +271,19 @@ public class Race implements Runnable {
double turnAngle = turnRate * boat.getTimeSinceTackChange();
//System.out.println("boat " + boat.getAbbrev() + " turn angle is " + turnAngle + ".");//TEMP DEBUG REMOVE
//Find the bounds on what angle the boat is allowed to travel at.
bound1 = boat.getHeading() - turnAngle;
bound2 = boat.getHeading() + turnAngle;
double bound1 = boat.getHeading() - turnAngle;
double bound2 = boat.getHeading() + turnAngle;
//The bounds cap out at [0, 360).
bound1 = Math.max(bound1, 0);
bound2 = Math.min(bound2, 360);
//Calculate the new VMG.
VMG newHeading = boat.getPolars().calculateVMG(this.windDirection, this.windSpeed,
boat.calculateBearingToDestination(), bound1, bound2);
if (!GPSCoordinate.isInsideBoundary(boat.getCurrentPosition(), boundary)){
double tempHeading = (newHeading.getBearing() - this.windDirection +90)%360;
newHeading.setBearing(tempHeading);
}
//Is this new VMG better than the current VMG?
@ -297,21 +291,27 @@ public class Race implements Runnable {
double angleBetweenDestAndNewVMG = newHeading.getBearing() - boat.calculateBearingToDestination();
double currentVelocity = cos(Math.toRadians(angleBetweenDestAndHeading)) * boat.getVelocity();
double vmgVelocity = cos(Math.toRadians(angleBetweenDestAndNewVMG)) * newHeading.getSpeed();
//System.out.println("boat " + boat.getAbbrev() + " current velocity is " + currentVelocity + " knots, possible VMG is " + vmgVelocity + " knots.");//TEMP DEBUG REMOVE
if (vmgVelocity > currentVelocity) {
boat.setHeading(newHeading.getBearing());
boat.setVelocity(newHeading.getSpeed());
boat.setTimeSinceTackChange(0);
//System.out.println("boat " + boat.getAbbrev() + " has a new bearing " + boat.getHeading() + " degrees, and is " + boat.calculateDistanceToNextMarker() + " nautical miles to the next marker. Velocity to next marker is " + boat.getVelocity() + " knots.");//TEMP DEBUG REMOVE
}
double azimuth = boat.getHeading();
if (azimuth > 180) {
azimuth = azimuth - 360;
}
//tests to see if a point in front of the boat is out of bounds, if so mirror heading in the wind
GPSCoordinate test = calculatePosition(boat.getCurrentPosition(), (100.0 / Constants.NMToMetersConversion), azimuth);
if (!GPSCoordinate.isInsideBoundary(test, boundary)) {
double tempHeading = (boat.getHeading() - this.windDirection + 90) % 360;
boat.setHeading(tempHeading);
}
//TODO one way to fix the boat's rapid turning it to only update the velocity/heading every X seconds (e.g., every 5 seconds).
//TODO may need a lower tack period
//TODO another way would be to allow boats use a better VMG if it is within turnRate * timeSinceTackChange. E.g., after 100ms a boat can select a more optimal VMG within 5deg of their current bearing. After 500ms VMG can be within 25deg of current bearing. After 2sec it can be 100deg of bearing, etc...
//calc the distance travelled in a straight line to windward
//double angleBetweenDestAndHeading = boat.getHeading() - boat.calculateBearingToDestination();
@ -320,7 +320,7 @@ public class Race implements Runnable {
//Calculate boat's new position by adding the distance travelled onto the start point of the leg
double azimuth = boat.getHeading();
azimuth = boat.getHeading();
if (azimuth > 180) {
azimuth = azimuth - 360;
}

@ -32,7 +32,7 @@ public class VMG {
/**
* Returns the speed component of this VMG object, measured in.
* Returns the speed component of this VMG object, measured in knots.
* @return Speed component of this VMG object.
*/
public double getSpeed() {

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