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app/src/main/java/de/frajul/endlessroll/levels/LevelPack.java

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+package de.frajul.endlessroll.levels;
+
+import org.simpleframework.xml.Attribute;
+import org.simpleframework.xml.Element;
+import org.simpleframework.xml.ElementList;
+import org.simpleframework.xml.Root;
+
+import java.util.List;
+
+import de.frajul.endlessroll.levels.worlds.World;
+
+/**
+ * Created by Julian on 07.12.2015.
+ */
+@Root
+public class LevelPack {
+
+    @Attribute
+    private int id;
+    @Element
+    private World world;
+    @ElementList
+    private List<Level> levels;
+
+    private String name;
+    private boolean locked = true;
+
+    public int getId() {
+        return id;
+    }
+
+    public List<Level> getLevels() {
+        return levels;
+    }
+
+    public World getWorld() {
+        return world;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getFinishedLevelCount() {
+        int count = 0;
+        for (Level level : levels)
+            if (level.isFinished())
+                count++;
+        return count;
+    }
+
+    public int getCollectedStarCount() {
+        int count = 0;
+        for (Level level : levels)
+            count += level.getCollectedStarCodeForSQL().length();
+        return count;
+    }
+
+    public int getAvailableStars() {
+        return levels.size() * 3;
+    }
+
+    public int getCollectedEnergyCount() {
+        int count = 0;
+        for (Level level : levels)
+            count += level.isEnergyCollected() ? 1 : 0;
+        return count;
+    }
+
+    public int getAvailableEnergy() {
+        return levels.size();
+    }
+
+    public void tryToUnlockFirstLevel() {
+        Level firstLevel = getLevel(1);
+        if (firstLevel != null)
+            firstLevel.setLocked(false);
+    }
+
+    public Level getLevel(int id) {
+        for (Level level : levels)
+            if (level.getId() == id)
+                return level;
+        return null;
+    }
+
+    public Level getNextLevel(Level currentLevel) {
+        return getLevel(currentLevel.getId() + 1);
+    }
+
+    public boolean isAllLevelsFinished() {
+        for (Level level : levels)
+            if (!level.isFinished())
+                return false;
+        return true;
+    }
+
+    public boolean isLastLevel(Level level) {
+        return getNextLevel(level) == null;
+    }
+
+    public void reset() {
+        for (Level level : levels)
+            level.reset();
+        setLocked(true);
+        tryToUnlockFirstLevel();
+    }
+
+    public void setLocked(boolean locked) {
+        this.locked = locked;
+    }
+
+    public boolean isLocked() {
+        return locked;
+    }
+}