Server/src/main/java/de/towerdefence/server/match/Match.java

package de.towerdefence.server.match;

import de.towerdefence.server.player.Player;
import de.towerdefence.server.server.channels.match.placing.InvalidPlacementReason;
import de.towerdefence.server.server.channels.match.placing.Tower;
import lombok.AllArgsConstructor;
import lombok.Getter;

@AllArgsConstructor
@Getter
public class Match {

    public final static int MAP_SIZE_X = 10;
    public final static int MAP_SIZE_Y = 20;
    private final String matchId;
    private final Player player1;
    private final Player player2;
    private final Tower[][] player1Map = new Tower[MAP_SIZE_X][MAP_SIZE_Y];
    private final Tower[][] player2Map = new Tower[MAP_SIZE_X][MAP_SIZE_Y];

    public Player getOpponent(Player player) {
        boolean isPlayer1 = player1.equals(player);
        boolean isPlayer2 = player2.equals(player);
        if (!isPlayer1 && !isPlayer2) {
            return null;
        }
        if (isPlayer1) {
            return player2;
        }
        return player1;
    }

    /**
     * @return opponent
     */
    public Player addTower(Player player, Tower tower, int x, int y) throws InvalidPlacementException {
        if (player != player1 && player != player2) {
            return null;
        }
        if (x < 0 || y < 0 || x + 1 > Match.MAP_SIZE_X || y + 1 > Match.MAP_SIZE_Y) {
            throw new InvalidPlacementException(InvalidPlacementReason.OUT_OF_BOUNDS);
        }
        if (player == player1) {
            if (player1Map[x][y] != null) {
                throw new InvalidPlacementException(InvalidPlacementReason.LOCATION_USED);
            }
            player1Map[x][y] = tower;
        } else {
            if (player2Map[x][y] != null) {
                throw new InvalidPlacementException(InvalidPlacementReason.LOCATION_USED);
            }
            player2Map[x][y] = tower;
        }
        return getOpponent(player);
    }
}