RiverTargetFinder.java

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package jsettlers.ai.highlevel.pioneers.target;

import jsettlers.ai.highlevel.AiPositions;
import jsettlers.ai.highlevel.AiStatistics;
import jsettlers.common.buildings.EBuildingType;
import jsettlers.common.position.ShortPoint2D;

/**
 * @author codingberlin
 */
public class RiverTargetFinder extends AbstractPioneerTargetFinder {

	public RiverTargetFinder(AiStatistics aiStatistics, byte playerId, int searchDistance) {
		super(aiStatistics, playerId, searchDistance);
	}

	@Override
	public ShortPoint2D findTarget(AiPositions playerBorder, ShortPoint2D center) {
		int buildingCount = aiStatistics.getTotalNumberOfBuildingTypeForPlayer(EBuildingType.WATERWORKS, playerId) + 1;
		if (aiStatistics.getRiversForPlayer(playerId).size() > buildingCount * 5)
			return null;

		ShortPoint2D nearestRiver = aiStatistics.getNearestRiverPointInDefaultPartitionFor(
				center, searchDistance, new SameBlockedPartitionLikePlayerFilter(aiStatistics, playerId));
		if (nearestRiver == null)
			return null;

		return playerBorder.getNearestPoint(nearestRiver, searchDistance);
	}
}