import com.nolimitscoaster.*;

public class CarScript extends Script implements TrackTriggerListener {

    private CarHandler handlers[];
    private Coaster coaster;

    private String startTriggerName = "start";
    private String stopTriggerName = "stop";

    private TrackTrigger startTrigger;
    private TrackTrigger stopTrigger;

    public bool onInit() {
        coaster = sim.getCoaster("Track");
        handlers = new CarHandler[coaster.getTrainCount()];
        for (int i = 0; i < coaster.getTrainCount(); i++) {
            Train train = coaster.getTrainAt(i);
            handlers[i] = new CarHandler(this, sim, coaster, train, i);
        }

        startTrigger = coaster.getTrackTrigger(startTriggerName);
        if (startTrigger == null) {
            System.err.println("CarScript: Can't find trigger " + startTriggerName + "!");
            return false;
        }
        startTrigger.addTrackTriggerListener(this);

        stopTrigger = coaster.getTrackTrigger(stopTriggerName);
        if (stopTrigger == null) {
            System.err.println("CarScript: Can't find trigger " + startTriggerName + "!");
            return false;
        }
        stopTrigger.addTrackTriggerListener(this);

        return true;
    }

    public void onNextFrame(float tick) {
        for (int i = 0; i < coaster.getTrainCount(); i++) {
            handlers[i].process(tick);
        }
    }

    public void onTrainEntering(TrackTrigger trigger, Train train) {
        if (trigger == startTrigger) {
            for (int i = 0; i < coaster.getTrainCount(); i++) {
                if (handlers[i].getTrain() == train) {
                    handlers[i].start();
                }
            }
        }

        if (trigger == stopTrigger) {
            for (int i = 0; i < coaster.getTrainCount(); i++) {
                if (handlers[i].getTrain() == train) {
                    handlers[i].stop();
                }
            }
        }
    }

    public void onTrainLeaving(TrackTrigger trigger, Train train) {

    }
}