Provision to reward player on quest completion

src/main/java/org/terasology/tasks/DefaultQuest.java

@@ -17,6 +17,9 @@
 package org.terasology.tasks;
 
 import org.terasology.entitySystem.entity.EntityRef;
+import org.terasology.logic.inventory.StartingInventoryComponent;
+
+import java.util.List;
 
 /**
  *
@@ -26,12 +29,14 @@ public class DefaultQuest implements Quest {
     private final String description;
     private final TaskGraph tasks;
     private final EntityRef entity;
+    private final List<StartingInventoryComponent.InventoryItem> reward;
 
-    public DefaultQuest(EntityRef entity, String shortName, String description, TaskGraph tasks) {
+    public DefaultQuest(EntityRef entity, String shortName, String description, TaskGraph tasks, List<StartingInventoryComponent.InventoryItem> reward) {
         this.entity = entity;
         this.shortName = shortName;
         this.description = description;
         this.tasks = tasks;
+        this.reward = reward;
     }
 
     @Override
@@ -54,6 +59,11 @@ public TaskGraph getTaskGraph() {
         return tasks;
     }
 
+    @Override
+    public List<StartingInventoryComponent.InventoryItem> getReward() {
+        return reward;
+    }
+
     /**
      * The quest fails if any task failed. Otherwise, the quest is active if any task is active. Otherwise,
      * the quest has completed successfully.

src/main/java/org/terasology/tasks/Quest.java

@@ -17,6 +17,9 @@
 package org.terasology.tasks;
 
 import org.terasology.entitySystem.entity.EntityRef;
+import org.terasology.logic.inventory.StartingInventoryComponent;
+
+import java.util.List;
 
 public interface Quest {
 
@@ -42,4 +45,10 @@ public interface Quest {
      * @return the target entity for this quest
      */
     EntityRef getEntity();
+
+    /**
+     *
+     * @return the reward attached to this quest
+     */
+    List<StartingInventoryComponent.InventoryItem> getReward();
 }

src/main/java/org/terasology/tasks/components/QuestComponent.java

@@ -17,10 +17,14 @@
 package org.terasology.tasks.components;
 
 import org.terasology.entitySystem.Component;
+import org.terasology.logic.inventory.StartingInventoryComponent;
 import org.terasology.tasks.TaskGraph;
 
+import java.util.List;
+
 public class QuestComponent implements Component {
     public String shortName;
     public String description;
     public TaskGraph tasks;
+    public List<StartingInventoryComponent.InventoryItem> reward;
 }

src/main/java/org/terasology/tasks/systems/QuestSystem.java

@@ -16,11 +16,9 @@
 
 package org.terasology.tasks.systems;
 
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.Optional;
-
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.Collections2;
+import com.google.common.collect.ListMultimap;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.terasology.entitySystem.entity.EntityRef;
@@ -29,6 +27,9 @@
 import org.terasology.entitySystem.systems.RegisterMode;
 import org.terasology.entitySystem.systems.RegisterSystem;
 import org.terasology.logic.common.ActivateEvent;
+import org.terasology.logic.inventory.ItemCommands;
+import org.terasology.logic.inventory.StartingInventoryComponent;
+import org.terasology.registry.In;
 import org.terasology.registry.Share;
 import org.terasology.tasks.DefaultQuest;
 import org.terasology.tasks.Quest;
@@ -41,9 +42,10 @@
 import org.terasology.tasks.events.StartTaskEvent;
 import org.terasology.tasks.events.TaskCompletedEvent;
 
-import com.google.common.collect.ArrayListMultimap;
-import com.google.common.collect.Collections2;
-import com.google.common.collect.ListMultimap;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
 
 /**
  * This controls the main logic of the quest, and defines what to do with a "quest card"
@@ -54,6 +56,9 @@ public class QuestSystem extends BaseComponentSystem {
 
     private static final Logger logger = LoggerFactory.getLogger(QuestSystem.class);
 
+    @In
+    private ItemCommands commands;
+
     private final ListMultimap<EntityRef, Quest> quests = ArrayListMultimap.create();
     private final Collection<Quest> activeQuestView = Collections2.filter(quests.values(),
             quest -> quest.getStatus() == Status.ACTIVE);
@@ -70,7 +75,7 @@ public void onActivate(ActivateEvent event, EntityRef questItem) {
         if (!beforeQuestEvent.isConsumed()) {
             TaskGraph taskGraph = questComp.tasks;
 
-            DefaultQuest quest = new DefaultQuest(entity, questComp.shortName, questComp.description, taskGraph);
+            DefaultQuest quest = new DefaultQuest(entity, questComp.shortName, questComp.description, taskGraph, questComp.reward);
             quests.put(entity, quest);
 
             for (Task task : taskGraph) {
@@ -100,6 +105,15 @@ public void onTaskComplete(TaskCompletedEvent event, EntityRef entity) {
         }
     }
 
+    @ReceiveEvent
+    public void reward(QuestCompleteEvent event, EntityRef entity) {
+        Quest quest = event.getQuest();
+        List<StartingInventoryComponent.InventoryItem> rewards = quest.getReward();
+        for (StartingInventoryComponent.InventoryItem item : rewards) {
+            commands.give(entity, item.uri, item.quantity, null);
+        }
+    }
+
     /**
      * @return an unmodifiable map of all known quests.
      */