Improved light direction and added WorldIO

client/src/main/resources/shader/chunk/fragment.glsl

@@ -7,7 +7,7 @@ in vec3 vertexNormal;
 out vec4 fragmentColor;
 
 void main() {
-    vec3 lightDirection = normalize(vec3(0.1, -1.0, -0.5));// TODO: Add this via a uniform.
+    vec3 lightDirection = normalize(vec3(0.5, -1.0, -0.5));// TODO: Add this via a uniform.
     vec3 lightColor = vec3(1.0, 1.0, 0.9); // TODO: Add this via a uniform.
 
     vec3 ambientComponent = vec3(0.1, 0.1, 0.1);

core/src/main/java/nl/andrewl/aos_core/model/World.java

@@ -8,6 +8,10 @@ import org.joml.Vector3ic;
 import java.util.HashMap;
 import java.util.Map;
 
+/**
+ * A world is just a collection of chunks that together form the environment
+ * that players can interact in.
+ */
 public class World {
 	private final Map<Vector3ic, Chunk> chunkMap = new HashMap<>();
 

core/src/main/java/nl/andrewl/aos_core/model/WorldIO.java

@@ -0,0 +1,44 @@
+package nl.andrewl.aos_core.model;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+/**
+ * Utility class for reading and writing worlds to files.
+ */
+public final class WorldIO {
+	public static void write(World world, Path path) throws IOException {
+		var chunks = world.getChunkMap().values();
+		try (var os = Files.newOutputStream(path)) {
+			var out = new DataOutputStream(os);
+			out.writeInt(chunks.size());
+			for (var chunk : chunks) {
+				out.writeInt(chunk.getPosition().x);
+				out.writeInt(chunk.getPosition().y);
+				out.writeInt(chunk.getPosition().z);
+				out.write(chunk.getBlocks());
+			}
+		}
+	}
+
+	public static World read(Path path) throws IOException {
+		World world = new World();
+		try (var is = Files.newInputStream(path)) {
+			var in = new DataInputStream(is);
+			int chunkCount = in.readInt();
+			for (int i = 0; i < chunkCount; i++) {
+				Chunk chunk = new Chunk(
+						in.readInt(),
+						in.readInt(),
+						in.readInt(),
+						in.readNBytes(Chunk.TOTAL_SIZE)
+				);
+				world.addChunk(chunk);
+			}
+		}
+		return world;
+	}
+}

server/src/main/java/nl/andrewl/aos2_server/Server.java

@@ -1,20 +1,19 @@
 package nl.andrewl.aos2_server;
 
-import nl.andrewl.aos_core.model.Chunk;
 import nl.andrewl.aos_core.model.World;
+import nl.andrewl.aos_core.model.WorldIO;
 import nl.andrewl.aos_core.net.UdpReceiver;
 import nl.andrewl.aos_core.net.udp.ClientInputState;
 import nl.andrewl.aos_core.net.udp.ClientOrientationState;
 import nl.andrewl.aos_core.net.udp.DatagramInit;
 import nl.andrewl.aos_core.net.udp.PlayerUpdateMessage;
 import nl.andrewl.record_net.Message;
-import org.joml.Vector3f;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.net.*;
-import java.util.Random;
+import java.nio.file.Path;
 import java.util.concurrent.ForkJoinPool;
 
 public class Server implements Runnable {
@@ -37,24 +36,26 @@ public class Server implements Runnable {
 		this.worldUpdater = new WorldUpdater(this, 20);
 
 		// Generate world. TODO: do this elsewhere.
-		Random rand = new Random(1);
+//		Random rand = new Random(1);
-		this.world = new World();
+//		this.world = new World();
-		for (int x = -5; x <= 5; x++) {
+//		for (int x = -5; x <= 5; x++) {
-			for (int y = 0; y <= 5; y++) {
+//			for (int y = 0; y <= 5; y++) {
-				for (int z = -3; z <= 3; z++) {
+//				for (int z = -3; z <= 3; z++) {
-					Chunk chunk = new Chunk(x, y, z);
+//					Chunk chunk = new Chunk(x, y, z);
-					if (y <= 3) {
+//					if (y <= 3) {
-						for (int i = 0; i < Chunk.TOTAL_SIZE; i++) {
+//						for (int i = 0; i < Chunk.TOTAL_SIZE; i++) {
-							chunk.getBlocks()[i] = (byte) rand.nextInt(20, 40);
+//							chunk.getBlocks()[i] = (byte) rand.nextInt(20, 40);
-						}
+//						}
-					}
+//					}
-					world.addChunk(chunk);
+//					world.addChunk(chunk);
-				}
+//				}
-			}
+//			}
-		}
+//		}
-		world.setBlockAt(new Vector3f(5, 64, 5), (byte) 50);
+//		world.setBlockAt(new Vector3f(5, 64, 5), (byte) 50);
-		world.setBlockAt(new Vector3f(5, 65, 6), (byte) 50);
+//		world.setBlockAt(new Vector3f(5, 65, 6), (byte) 50);
-		world.setBlockAt(new Vector3f(5, 66, 7), (byte) 50);
+//		world.setBlockAt(new Vector3f(5, 66, 7), (byte) 50);
+//		WorldIO.write(world, Path.of("testworld"));
+		this.world = WorldIO.read(Path.of("testworld"));
 	}
 
 	@Override

server/src/main/java/nl/andrewl/aos2_server/WorldUpdater.java

@@ -89,7 +89,7 @@ public class WorldUpdater implements Runnable {
 		}
 
 		// Apply horizontal deceleration to the player before computing any input-derived acceleration.
-		if (hv.length() > 0) {
+		if (grounded && hv.length() > 0) {
 			Vector3f deceleration = new Vector3f(hv).negate().normalize().mul(0.1f);
 			hv.add(deceleration);
 			if (hv.length() < 0.1f) {
@@ -107,6 +107,7 @@ public class WorldUpdater implements Runnable {
 		}
 
 		// Compute horizontal motion separately.
+		if (grounded) {
 			if (inputState.forward()) a.z -= 1;
 			if (inputState.backward()) a.z += 1;
 			if (inputState.left()) a.x -= 1;
@@ -127,9 +128,7 @@ public class WorldUpdater implements Runnable {
 				v.z = hv.z;
 				updated = true;
 			}
-
+		}
-		// Check if the player is colliding with the world.
-
 
 		// Apply velocity to the player's position.
 		if (v.lengthSquared() > 0) {