Server/src/main/java/de/towerdefence/server/game/GameSession.java

package de.towerdefence.server.game;

import de.towerdefence.server.game.callbacks.PlayerMoneyCallback;
import de.towerdefence.server.game.exeptions.InvalidPlacementException;
import de.towerdefence.server.game.exeptions.InvalidPlacementReason;
import de.towerdefence.server.player.Player;
import lombok.Getter;

public class GameSession {
    final static int START_HITPOINTS = 100;
    final static int START_MONEY = 50;
    final static int MAP_SIZE_X = 10;
    final static int MAP_SIZE_Y = 20;

    private final Tower[][] towers = new Tower[MAP_SIZE_X][MAP_SIZE_Y];

    private final Player player;
    @Getter
    private int money;
    @Getter
    private int playerHitpoints;
    private final PlayerMoneyCallback moneyCallback;
    //private final PlayerHitpointsCallback hitpointsCallback;

    public GameSession(Player player, PlayerMoneyCallback moneyCallback) {
        this.player = player;
        this.moneyCallback = moneyCallback;
        //this.hitpointsCallback = hitpointsCallback;
        this.money = START_MONEY;
        this.playerHitpoints = START_HITPOINTS;

    }

    public void placeTower(Tower tower, int x, int y) throws InvalidPlacementException {
        if (x < 0 || y < 0 || x + 1 > MAP_SIZE_X || y + 1 > MAP_SIZE_Y) {
            throw new InvalidPlacementException(InvalidPlacementReason.OUT_OF_BOUNDS);
        }
        if (towers[x][y] != null) {
            throw new InvalidPlacementException(InvalidPlacementReason.LOCATION_USED);
        }
        if (money < Tower.COST) {
            throw new InvalidPlacementException(InvalidPlacementReason.NOT_ENOUGH_MONEY);
        }
        money -= Tower.COST;
        moneyCallback.call(player, money);
        towers[x][y] = tower;
    }

    public void addMoney(int amount) {
        money += amount;
        moneyCallback.call(player, money);
    }
}