CodeRally is a competitive coding challenge where you develop a rally car to compete against other cars. Your ability to develop a good algorithm will make the difference.
- Java 8
- Eclipse Oxygen JEE
This document has a more detailed description that the steps below.
- Java 8 JDK
- Eclipse Oxygen JEE. Expand the archive to a location where you have permission to modify files and execute eclipse
- IBM Bluemix Tools Eclipse plugin. Visit http://marketplace.eclipse.org/content/ibm-eclipse-tools-bluemix and drag and drop the Install icon onto your Eclipse Workspace.
- Coderally Eclipse plugin.
- In Eclipse.
- Help -> Install New Software...
- Add... -> Name "Code Rally" and Url http://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/coderally/downloads/eclipseplugin.
- Uncheck 'Group Items by Category' and check the plugin and click install.
- WebSphere Liberty Profile
- In Eclipse
- Window -> Open Perspective -> Java EE
- Servers View -> New Server
- IBM -> WebSphere Liberty Profile
- Choose location where you have write access
- Choose WebSphere Liberty Profile Web Profile Option.
- Once installed Double-click on Server Configuration -> Feature Manager and add
websocket-1.1and save, - Start the Server.
- CodeRallyWeb
- Download WAR from https://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/coderally/downloads/CodeRallyWeb.war
- In Eclipse
- File -> Import -> WAR file
- Select you downloaded file
- Don't check and sub modules.
- When imported, right-click on CodeRallyWeb -> Run As -> Run on Server and select your WebSphere Liberty Profile server.
- Visit homepage on http://localhost:9080/CodeRallyWeb
Some people have experienced issue with the Intermediate car. This is the kind that the plugin will generate when you create your first agent car.
Always start the WebSphere Liberty Server before creating a car or making any changes to your car. It seems once the plugin has failed to connect it doesn't try again.
This is a very basic car. You can change the behaviour by remove call to super and performing alternative logic.
import com.ibm.coderally.agent.DefaultCarAIAgent;
import com.ibm.coderally.api.agent.AIUtils;
import com.ibm.coderally.entity.cars.agent.Car;
import com.ibm.coderally.entity.obstacle.agent.Obstacle;
import com.ibm.coderally.geo.agent.CheckPoint;
import com.ibm.coderally.track.agent.Track;
public class VeryBasicCar extends DefaultCarAIAgent {
@Override
public void onCarCollision(Car other) {
super.onCarCollision(other);
}
@Override
public void onCheckpointUpdated(CheckPoint oldCheckpoint) {
getCar().setBrakePercent(0);
getCar().setAccelerationPercent(100);
getCar().setTarget(AIUtils.getClosestLane(getCar().getCheckpoint(), getCar().getPosition()));
}
@Override
public void onObstacleInProximity(Obstacle obstacle) {
super.onObstacleInProximity(obstacle);
}
@Override
public void onOnTrack() {
super.onOnTrack();
}
@Override
public void onOffTrack() {
super.onOffTrack();
}
@Override
public void onOpponentInProximity(Car car) {
super.onOpponentInProximity(car);
}
@Override
public void onRaceStart() {
// Replace with custom logic or remove method for default implementation.
getCar().setBrakePercent(0);
getCar().setAccelerationPercent(100);
getCar().setTarget(AIUtils.getClosestLane(getCar().getCheckpoint(), getCar().getPosition()));
}
@Override
public void onTimeStep() {
AIUtils.recalculateHeading(getCar());
}
@Override
public void init(Car car, Track track) {
super.init(car, track);
}
@Override
public void onObstacleCollision(Obstacle obstacle) {
super.onObstacleCollision(obstacle);
}
@Override
public void onStalled() {
super.onStalled();
}
}