InventoryMessageListener.java

package net.scapeemulator.game.model.player.inventory;

import net.scapeemulator.game.model.player.Item;
import net.scapeemulator.game.model.player.Player;
import net.scapeemulator.game.model.player.SlottedItem;
import net.scapeemulator.game.msg.impl.inter.InterfaceItemsMessage;
import net.scapeemulator.game.msg.impl.inter.InterfaceResetItemsMessage;
import net.scapeemulator.game.msg.impl.inter.InterfaceSlottedItemsMessage;

public final class InventoryMessageListener implements InventoryListener {

    private final Player player;
    private final int id, child, type;

    public InventoryMessageListener(Player player, int id, int child, int type) {
        this.player = player;
        this.id = id;
        this.child = child;
        this.type = type;
    }

    @Override
    public void itemChanged(Inventory inventory, int slot, Item item, Item oldItem) {
        SlottedItem[] items = new SlottedItem[] { new SlottedItem(slot, item) };
        player.send(new InterfaceSlottedItemsMessage(id, child, type, items));
    }

    @Override
    public void itemsChanged(Inventory inventory) {
        if (inventory.isEmpty() && id >= 0 && child >= 0) {
            // TODO: consider how this interacts with the 'type'?
            player.send(new InterfaceResetItemsMessage(id, child));
        } else {
            Item[] items = inventory.toArray();
            player.send(new InterfaceItemsMessage(id, child, type, items));
        }
    }

    @Override
    public void capacityExceeded(Inventory inventory) {
        /* empty */
    }

}