Merge pull request #176 from Wiewiogr/138-add-items-container

Added Container object #138

Server/src/main/java/net/simon987/server/game/objects/ItemsContainer.java

@@ -0,0 +1,69 @@
+package net.simon987.server.game.objects;
+
+import net.simon987.server.game.item.Item;
+import org.bson.Document;
+import org.json.simple.JSONObject;
+
+import java.util.*;
+
+public class ItemsContainer extends GameObject implements InventoryHolder {
+
+    private static final char MAP_INFO = 0x0240;
+
+    private final List<Item> items;
+    private int containerCapacity;
+
+    public ItemsContainer(int containerCapacity) {
+        this.containerCapacity = containerCapacity;
+        this.items = new ArrayList<>();
+    }
+
+    public ItemsContainer(Document document) {
+        super(document);
+        this.items = (List<Item>) document.get("items");
+    }
+
+    @Override
+    public char getMapInfo() {
+        return MAP_INFO;
+    }
+
+    @Override
+    public boolean placeItem(Item item) {
+        if (items.size() < containerCapacity) {
+            items.add(item);
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public void takeItem(int itemId) {
+        Optional<Item> first = items.stream()
+                .filter(item -> item.getId() == itemId)
+                .findFirst();
+
+        items.remove(first.get());
+    }
+
+    @Override
+    public boolean canTakeItem(int itemId) {
+        return items.stream()
+                .anyMatch(item -> item.getId() == itemId);
+    }
+
+    @Override
+    public JSONObject jsonSerialise() {
+        JSONObject json = super.jsonSerialise();
+        json.put("items", items);
+        return json;
+    }
+
+    @Override
+    public Document mongoSerialise() {
+        Document dbObject = super.mongoSerialise();
+        dbObject.put("items", items);
+        return dbObject;
+    }
+}

Server/src/test/java/net/simon987/server/game/objects/ItemsContainerTest.java

@@ -0,0 +1,72 @@
+package net.simon987.server.game.objects;
+
+import net.simon987.server.game.item.ItemCopper;
+import org.bson.Document;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ItemsContainerTest {
+
+    @Test
+    public void shouldBeSerializableToMongoFormat() {
+        ItemsContainer itemsContainer = new ItemsContainer(2);
+        ItemCopper item = new ItemCopper();
+        itemsContainer.placeItem(item);
+
+        Document document = itemsContainer.mongoSerialise();
+
+        ItemsContainer deserialized = new ItemsContainer(document);
+        Assert.assertTrue(deserialized.canTakeItem(item.getId()));
+    }
+
+    @Test
+    public void shouldPlaceItemWhenCapacityAllowsIt() {
+        ItemsContainer itemsContainer = new ItemsContainer(1);
+
+        boolean result = itemsContainer.placeItem(new ItemCopper());
+
+        Assert.assertEquals(true, result);
+    }
+
+    @Test
+    public void shouldNotPlaceItemWhenThereIsNoCapacityLeft() {
+        ItemsContainer itemsContainer = new ItemsContainer(1);
+
+        itemsContainer.placeItem(new ItemCopper());
+        boolean result = itemsContainer.placeItem(new ItemCopper());
+
+        Assert.assertEquals(false, result);
+    }
+
+    @Test
+    public void shouldNotBeAbleToTakeItemWhenItWasNotPlacedBefore() {
+        ItemsContainer itemsContainer = new ItemsContainer(1);
+
+        boolean result = itemsContainer.canTakeItem(1);
+
+        Assert.assertEquals(false, result);
+    }
+
+    @Test
+    public void shouldBeAbleToTakeItemIfItWasPlacedBefore() {
+        ItemsContainer itemsContainer = new ItemsContainer(1);
+        ItemCopper item = new ItemCopper();
+
+        itemsContainer.placeItem(item);
+        boolean result = itemsContainer.canTakeItem(item.getId());
+
+        Assert.assertEquals(true, result);
+    }
+
+    @Test
+    public void shouldNotBeAbleToTakeItemAfterItWasTaken() {
+        ItemsContainer itemsContainer = new ItemsContainer(1);
+        ItemCopper item = new ItemCopper();
+
+        itemsContainer.placeItem(item);
+        itemsContainer.takeItem(item.getId());
+        boolean result = itemsContainer.canTakeItem(item.getId());
+
+        Assert.assertEquals(false, result);
+    }
+}