player save dat

src/main/java/com/github/halotroop/litecraft/Litecraft.java

@@ -1,5 +1,7 @@
 package com.github.halotroop.litecraft;
 
+import java.io.IOException;
+
 import org.joml.Vector4i;
 import org.lwjgl.glfw.GLFW;
 
@@ -30,6 +32,7 @@ public class Litecraft extends Game
 	private LitecraftSave save;
 	private Ginger ginger3D;
 	private static Litecraft INSTANCE;
+	private static Player player;
 	//temp stuff to test out fbo fixes
 	int oldWindowWidth = Window.width;
 	int oldWindowHeight = Window.height;
@@ -56,7 +59,7 @@ public class Litecraft extends Game
 		Window.setBackgroundColour(0.2f, 0.2f, 0.6f);
 		TexturedModel dirtModel = ModelLoader.loadGenericCube("block/cubes/stone/brick/stonebrick.png");
 		StaticCube.scaleCube(1f);
-		Player player = new Player(dirtModel, new Vector3f(0, 0, -3), 0, 180f, 0, new Vector3f(0.2f, 0.2f, 0.2f));
+		player = new Player(dirtModel, new Vector3f(0, 0, -3), 0, 180f, 0, new Vector3f(0.2f, 0.2f, 0.2f));
 		Camera camera = new FirstPersonCamera(player);
 		player.isVisible = false;
 		ginger3D = new Ginger();
@@ -85,7 +88,18 @@ public class Litecraft extends Game
 	public void exit()
 	{
 		if (this.world != null)
+		{
 			this.world.unloadAllChunks();
+
+			try
+			{ this.save.saveGlobalData(this.world.getSeed(), this.player); }
+			catch (IOException e)
+			{
+				System.err.println("A critical error occurred while trying to save world data!");
+				e.printStackTrace();
+			}
+		}
+	
 		ginger3D.cleanup(); 
 		System.exit(0);
 	}

src/main/java/com/github/halotroop/litecraft/save/LitecraftSave.java

@@ -5,6 +5,8 @@ import java.util.Random;
 
 import com.github.halotroop.litecraft.world.*;
 import com.github.halotroop.litecraft.world.gen.*;
+import com.github.hydos.ginger.engine.elements.objects.Player;
+import com.github.hydos.ginger.engine.math.vectors.Vector3f;
 
 import tk.valoeghese.sod.*;
 
@@ -110,15 +112,7 @@ public final class LitecraftSave
 			try
 			{
 				globalDataFile.createNewFile(); // create world file
-				BinaryData data = new BinaryData(); // create empty binary data
+				this.writeGlobalData(globalDataFile, seed, new Vector3f(0, 0, -3)); // write global data with default player pos
-				DataSection properties = new DataSection(); // create empty data section for properties
-				properties.writeLong(seed); // write seed at index 0
-				DataSection playerData = new DataSection();
-				playerData.writeFloat(0); // default spawn player x/y/z
-				playerData.writeFloat(0);
-				playerData.writeFloat(-3);
-				data.put("properties", properties); // add properties section
-				data.write(globalDataFile); // write to file
 			}
 			catch (IOException e)
 			{
@@ -132,5 +126,27 @@ public final class LitecraftSave
 		}
 	}
 
+	public void saveGlobalData(long seed, Player player) throws IOException
+	{
+		File globalDataFile = new File(this.file.getPath() + "/global_data.sod");
+		globalDataFile.createNewFile(); // create world file if it doesn't exist.
+
+		writeGlobalData(globalDataFile, seed, player.getPosition());
+	}
+
+	private void writeGlobalData(File globalDataFile, long seed, Vector3f playerPos) 
+	{
+		BinaryData data = new BinaryData(); // create empty binary data
+		DataSection properties = new DataSection(); // create empty data section for properties
+		properties.writeLong(seed); // write seed at index 0
+		DataSection playerData = new DataSection();
+		playerData.writeFloat(playerPos.x); // default spawn player x/y/z
+		playerData.writeFloat(playerPos.y);
+		playerData.writeFloat(playerPos.z);
+		data.put("properties", properties); // add properties section to data
+		data.put("player", playerData); // add player section to data
+		data.write(globalDataFile); // write to file
+	}
+
 	private static final String SAVE_DIR = "./saves/";
 }

src/main/java/com/github/halotroop/litecraft/world/World.java

@@ -152,6 +152,11 @@ public class World implements BlockAccess, WorldGenConstants
 		chunkPositions.forEach((LongConsumer) (pos -> this.chunks.remove(pos))); // remove all chunks
 	}
 
+	public long getSeed()
+	{
+		return this.seed;
+	}
+
 	private static final class GenerationWorld implements BlockAccess, WorldGenConstants
 	{
 		GenerationWorld(World parent)