1 files changed, 71 insertions, 0 deletions
diff --git a/src/main/java/kubatech/savedata/PlayerDataManager.java b/src/main/java/kubatech/savedata/PlayerDataManager.java
new file mode 100644
index 0000000000..3fcaf1ba25
--- /dev/null
+++ b/src/main/java/kubatech/savedata/PlayerDataManager.java
@@ -0,0 +1,71 @@
+package kubatech.savedata;
+
+import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import java.util.HashMap;
+import java.util.Map;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.world.World;
+import net.minecraft.world.WorldSavedData;
+import net.minecraftforge.event.world.WorldEvent;
+
+public class PlayerDataManager extends WorldSavedData {
+
+    private static final String playerDataName = "KubaTech_PlayerData";
+    static PlayerDataManager Instance = null;
+    private final HashMap<String, PlayerData> players = new HashMap<>();
+
+    public static void Initialize(World world) {
+        if (Instance != null) {
+            Instance.players.clear();
+        }
+        Instance = (PlayerDataManager) world.mapStorage.loadData(PlayerDataManager.class, playerDataName);
+        if (Instance == null) {
+            Instance = new PlayerDataManager();
+            world.mapStorage.setData(playerDataName, Instance);
+        }
+        Instance.markDirty();
+    }
+
+    @SuppressWarnings("unused")
+    public PlayerDataManager(String p_i2141_1_) {
+        super(p_i2141_1_);
+    }
+
+    public PlayerDataManager() {
+        super(playerDataName);
+    }
+
+    @Override
+    public void readFromNBT(NBTTagCompound NBTData) {
+        if (!NBTData.hasKey("size")) return;
+        players.clear();
+        for (int i = 0, imax = NBTData.getInteger("size"); i < imax; i++) {
+            NBTTagCompound playerNBTData = NBTData.getCompoundTag("Player." + i);
+            players.put(playerNBTData.getString("username"), new PlayerData(playerNBTData.getCompoundTag("data")));
+        }
+    }
+
+    @Override
+    public void writeToNBT(NBTTagCompound NBTData) {
+        NBTData.setInteger("size", players.size());
+        int i = 0;
+        for (Map.Entry<String, PlayerData> playerDataEntry : players.entrySet()) {
+            NBTTagCompound playerNBTData = new NBTTagCompound();
+            playerNBTData.setString("username", playerDataEntry.getKey());
+            playerNBTData.setTag("data", playerDataEntry.getValue().toNBTData());
+            NBTData.setTag("Player." + (i++), playerNBTData);
+        }
+    }
+
+    public static PlayerData getPlayer(String username) {
+        if (Instance == null) return null;
+        return Instance.players.computeIfAbsent(username, s -> new PlayerData());
+    }
+
+    @SuppressWarnings("unused")
+    @SubscribeEvent
+    public void onWorldLoad(WorldEvent.Load event) {
+        if (event.world.isRemote || event.world.provider.dimensionId != 0) return;
+        Initialize(event.world);
+    }
+}