Added bullets!

client/src/main/java/nl/andrewl/aos2_client/Client.java

@@ -12,6 +12,7 @@ import nl.andrewl.aos2_client.sound.SoundManager;
 import nl.andrewl.aos2_client.sound.SoundSource;
 import nl.andrewl.aos_core.config.Config;
 import nl.andrewl.aos_core.model.Player;
+import nl.andrewl.aos_core.model.Projectile;
 import nl.andrewl.aos_core.model.Team;
 import nl.andrewl.aos_core.net.client.*;
 import nl.andrewl.aos_core.net.world.ChunkDataMessage;
@@ -43,12 +44,14 @@ public class Client implements Runnable {
 	private ClientWorld world;
 	private ClientPlayer myPlayer;
 	private final Map<Integer, OtherPlayer> players;
+	private final Map<Integer, Projectile> projectiles;
 	private Map<Integer, Team> teams;
 
 	public Client(ClientConfig config) {
 		this.config = config;
 		this.players = new ConcurrentHashMap<>();
 		this.teams = new ConcurrentHashMap<>();
+		this.projectiles = new ConcurrentHashMap<>();
 		this.communicationHandler = new CommunicationHandler(this);
 		this.inputHandler = new InputHandler(this, communicationHandler);
 	}
@@ -96,6 +99,7 @@ public class Client implements Runnable {
 			world.processQueuedChunkUpdates();
 			gameRenderer.getCamera().interpolatePosition(dt);
 			interpolatePlayers(dt);
+			interpolateProjectiles(dt);
 			gameRenderer.draw();
 			lastFrameAt = now;
 		}
@@ -120,7 +124,9 @@ public class Client implements Runnable {
 				if (gameRenderer != null) {
 					gameRenderer.getCamera().setToPlayer(myPlayer);
 				}
+				if (soundManager != null) {
 					soundManager.updateListener(myPlayer.getPosition(), myPlayer.getVelocity());
+				}
 				lastPlayerUpdate = playerUpdate.timestamp();
 			} else {
 				OtherPlayer p = players.get(playerUpdate.clientId());
@@ -151,6 +157,18 @@ public class Client implements Runnable {
 			players.remove(leaveMessage.id());
 		} else if (msg instanceof SoundMessage soundMessage) {
 			playerSource.play(soundManager.getSoundBuffer(soundMessage.name()));
+		} else if (msg instanceof ProjectileMessage pm) {
+			Projectile p = projectiles.get(pm.id());
+			if (p == null && !pm.destroyed()) {
+				p = new Projectile(pm.id(), new Vector3f(pm.px(), pm.py(), pm.pz()), new Vector3f(pm.vx(), pm.vy(), pm.vz()), pm.type());
+				projectiles.put(p.getId(), p);
+			} else if (p != null) {
+				p.getPosition().set(pm.px(), pm.py(), pm.pz()); // Don't update position, it's too short of a timeframe to matter.
+				p.getVelocity().set(pm.vx(), pm.vy(), pm.vz());
+				if (pm.destroyed()) {
+					projectiles.remove(p.getId());
+				}
+			}
 		}
 	}
 
@@ -174,6 +192,10 @@ public class Client implements Runnable {
 		return players;
 	}
 
+	public Map<Integer, Projectile> getProjectiles() {
+		return projectiles;
+	}
+
 	public void interpolatePlayers(float dt) {
 		Vector3f movement = new Vector3f();
 		for (var player : players.values()) {
@@ -183,6 +205,14 @@ public class Client implements Runnable {
 		}
 	}
 
+	public void interpolateProjectiles(float dt) {
+		Vector3f movement = new Vector3f();
+		for (var proj : projectiles.values()) {
+			movement.set(proj.getVelocity()).mul(dt);
+			proj.getPosition().add(movement);
+		}
+	}
+
 	public static void main(String[] args) throws IOException {
 		List<Path> configPaths = Config.getCommonConfigPaths();
 		if (args.length > 0) {

client/src/main/java/nl/andrewl/aos2_client/config/ClientConfig.java

@@ -12,8 +12,8 @@ public class ClientConfig {
 	}
 
 	public static class DisplayConfig {
-		public boolean fullscreen = true;
-		public boolean captureCursor = true;
+		public boolean fullscreen = false;
+		public boolean captureCursor = false;
 		public float fov = 70;
 	}
 }

client/src/main/java/nl/andrewl/aos2_client/render/GameRenderer.java

@@ -45,6 +45,7 @@ public class GameRenderer {
 	private Model playerModel;
 	private Model rifleModel;
 	private Model blockModel;
+	private Model bulletModel;
 
 	// Standard GUI textures.
 	private GUITexture crosshairTexture;
@@ -132,6 +133,7 @@ public class GameRenderer {
 			playerModel = new Model("model/player_simple.obj", "model/simple_player.png");
 			rifleModel = new Model("model/rifle.obj", "model/rifle.png");
 			blockModel = new Model("model/block.obj", "model/block.png");
+			bulletModel = new Model("model/bullet.obj", "model/bullet.png");
 		} catch (IOException e) {
 			throw new RuntimeException(e);
 		}
@@ -216,6 +218,16 @@ public class GameRenderer {
 		}
 		blockModel.unbind();
 
+		bulletModel.bind();
+		Matrix4f projectileTransform = new Matrix4f();
+		for (var projectile : client.getProjectiles().values()) {
+			projectileTransform.identity()
+					.translate(projectile.getPosition())
+					.rotateTowards(projectile.getVelocity(), Camera.UP);
+			modelRenderer.render(bulletModel, projectileTransform);
+		}
+		bulletModel.unbind();
+
 		modelRenderer.end();
 
 		// GUI rendering

client/src/main/resources/model/bullet.mtl

@@ -0,0 +1,13 @@
+# Blender MTL File: 'bullet.blend'
+# Material Count: 1
+
+newmtl Material.001
+Ns 225.000000
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
+map_Kd /home/andrew/Programming/github-andrewlalis/ace-of-shades-2/client/src/main/resources/model/bullet.png

client/src/main/resources/model/bullet.obj

@@ -0,0 +1,140 @@
+# Blender v2.82 (sub 7) OBJ File: 'bullet.blend'
+# www.blender.org
+mtllib bullet.mtl
+o Cylinder
+v 0.000000 0.020000 -0.033933
+v 0.000000 0.020000 0.029329
+v 0.017321 0.010000 -0.033933
+v 0.017321 0.010000 0.029329
+v 0.017321 -0.010000 -0.033933
+v 0.017321 -0.010000 0.029329
+v -0.000000 -0.020000 -0.033933
+v -0.000000 -0.020000 0.029329
+v -0.017321 -0.010000 -0.033933
+v -0.017321 -0.010000 0.029329
+v -0.017321 0.010000 -0.033933
+v -0.017321 0.010000 0.029329
+v -0.000000 0.015593 0.042620
+v 0.013504 0.007796 0.042620
+v 0.013504 -0.007796 0.042620
+v -0.000000 -0.015593 0.042620
+v -0.013504 -0.007796 0.042620
+v -0.013504 0.007796 0.042620
+v -0.000000 0.004471 0.055747
+v 0.003872 0.002236 0.055747
+v 0.003872 -0.002236 0.055747
+v -0.000000 -0.004471 0.055747
+v -0.003872 -0.002236 0.055747
+v -0.003872 0.002236 0.055747
+vt 0.436144 0.309159
+vt 0.610602 1.000000
+vt 0.436144 1.000000
+vt 0.610602 0.309159
+vt 0.697830 0.973380
+vt 0.348915 0.717461
+vt 0.261686 0.000000
+vt 0.348915 0.026620
+vt 0.261686 0.690841
+vt 0.087229 0.000000
+vt 0.242465 0.841851
+vt 0.087229 0.690841
+vt 0.000000 0.026620
+vt 0.348915 0.282539
+vt 0.348915 0.973380
+vt 1.000000 0.110280
+vt 0.848915 0.441121
+vt 0.697831 0.110280
+vt 0.815623 0.441121
+vt 0.849399 0.588424
+vt 0.815623 0.563770
+vt 0.455366 0.158149
+vt 0.106450 0.841851
+vt 0.659387 0.137395
+vt 0.697830 0.282539
+vt 0.038443 0.862605
+vt 0.000000 0.717461
+vt 0.591380 0.158149
+vt 0.781846 0.637733
+vt 0.781846 0.588424
+vt 0.697831 0.699058
+vt 0.815623 0.662388
+vt 0.815623 0.785037
+vt 0.697831 0.527100
+vt 0.503872 0.000000
+vt 0.542874 0.000000
+vt 0.849399 0.637733
+vt 0.933415 0.699058
+vt 0.154956 1.000000
+vt 0.310472 0.862605
+vt 0.848915 0.000000
+vt 1.000000 0.330840
+vt 0.697831 0.330840
+vt 0.933415 0.527100
+vt 0.387358 0.137395
+vt 0.193959 1.000000
+vn 0.5000 0.8660 -0.0000
+vn 1.0000 0.0000 0.0000
+vn 0.5000 -0.8660 0.0000
+vn -0.5000 -0.8660 0.0000
+vn 0.4806 -0.8324 0.2760
+vn -1.0000 0.0000 0.0000
+vn -0.5000 0.8660 -0.0000
+vn -0.0000 0.0000 -1.0000
+vn 0.8062 0.0000 0.5916
+vn -0.4806 0.8324 0.2760
+vn -0.4806 -0.8324 0.2760
+vn 0.9612 0.0000 0.2760
+vn -0.9612 0.0000 0.2760
+vn 0.4806 0.8324 0.2760
+vn 0.0000 0.0000 1.0000
+vn -0.8062 0.0000 0.5916
+vn 0.4031 -0.6982 0.5916
+vn 0.4031 0.6982 0.5916
+vn -0.4031 0.6982 0.5916
+vn -0.4031 -0.6982 0.5916
+usemtl Material.001
+s off
+f 2/1/1 3/2/1 1/3/1
+f 4/4/2 5/5/2 3/2/2
+f 6/6/3 7/7/3 5/8/3
+f 8/9/4 9/10/4 7/7/4
+f 6/6/5 16/11/5 8/9/5
+f 10/12/6 11/13/6 9/10/6
+f 12/14/7 1/3/7 11/15/7
+f 3/16/8 7/17/8 11/18/8
+f 15/19/9 20/20/9 21/21/9
+f 12/14/10 13/22/10 2/1/10
+f 8/9/11 17/23/11 10/12/11
+f 4/4/12 15/24/12 6/25/12
+f 10/12/13 18/26/13 12/27/13
+f 4/4/14 13/22/14 14/28/14
+f 23/29/15 22/30/15 21/21/15
+f 17/31/16 24/32/16 18/33/16
+f 16/34/17 21/21/17 22/30/17
+f 14/28/18 19/35/18 20/36/18
+f 18/33/19 19/37/19 13/38/19
+f 16/11/20 23/39/20 17/23/20
+f 2/1/1 4/4/1 3/2/1
+f 4/4/2 6/25/2 5/5/2
+f 6/6/3 8/9/3 7/7/3
+f 8/9/4 10/12/4 9/10/4
+f 6/6/5 15/40/5 16/11/5
+f 10/12/6 12/27/6 11/13/6
+f 12/14/7 2/1/7 1/3/7
+f 11/18/8 1/41/8 3/16/8
+f 3/16/8 5/42/8 7/17/8
+f 7/17/8 9/43/8 11/18/8
+f 15/19/9 14/44/9 20/20/9
+f 12/14/10 18/45/10 13/22/10
+f 8/9/11 16/11/11 17/23/11
+f 4/4/12 14/28/12 15/24/12
+f 10/12/13 17/23/13 18/26/13
+f 4/4/14 2/1/14 13/22/14
+f 21/21/15 20/20/15 23/29/15
+f 20/20/15 19/37/15 23/29/15
+f 19/37/15 24/32/15 23/29/15
+f 17/31/16 23/29/16 24/32/16
+f 16/34/17 15/19/17 21/21/17
+f 14/28/18 13/22/18 19/35/18
+f 18/33/19 24/32/19 19/37/19
+f 16/11/20 22/46/20 23/39/20

core/src/main/java/nl/andrewl/aos_core/Net.java

@@ -43,6 +43,7 @@ public final class Net {
 		serializer.registerTypeSerializer(14, new ItemStackSerializer());
 		serializer.registerType(15, InventorySelectedStackMessage.class);
 		serializer.registerType(16, SoundMessage.class);
+		serializer.registerType(17, ProjectileMessage.class);
 	}
 
 	public static ExtendedDataInputStream getInputStream(InputStream in) {

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

@@ -0,0 +1,35 @@
+package nl.andrewl.aos_core.model;
+
+import org.joml.Vector3f;
+
+/**
+ * Represents a flying projectile object in the world (usually a bullet).
+ * All projectiles have their orientation dependent on their velocity vector.
+ */
+public class Projectile {
+	protected final int id;
+	protected final Vector3f position;
+	protected final Vector3f velocity;
+
+	public enum Type {BULLET}
+	protected final Type type;
+
+	public Projectile(int id, Vector3f position, Vector3f velocity, Type type) {
+		this.id = id;
+		this.position = position;
+		this.velocity = velocity;
+		this.type = type;
+	}
+
+	public int getId() {
+		return id;
+	}
+
+	public Vector3f getPosition() {
+		return position;
+	}
+
+	public Vector3f getVelocity() {
+		return velocity;
+	}
+}

core/src/main/java/nl/andrewl/aos_core/model/item/ItemTypes.java

@@ -1,5 +1,6 @@
 package nl.andrewl.aos_core.model.item;
 
+import nl.andrewl.aos_core.model.item.gun.Ak47;
 import nl.andrewl.aos_core.model.item.gun.Rifle;
 
 import java.util.HashMap;
@@ -14,10 +15,12 @@ public final class ItemTypes {
 
 	public static final BlockItem BLOCK = new BlockItem(1);
 	public static final Rifle RIFLE = new Rifle(2);
+	public static final Ak47 AK_47 = new Ak47(3);
 
 	static {
 		registerType(BLOCK);
 		registerType(RIFLE);
+		registerType(AK_47);
 	}
 
 	public static void registerType(Item type) {

core/src/main/java/nl/andrewl/aos_core/model/item/gun/Ak47.java

@@ -0,0 +1,21 @@
+package nl.andrewl.aos_core.model.item.gun;
+
+import nl.andrewl.aos_core.model.item.Gun;
+
+public class Ak47 extends Gun {
+	public Ak47(int id) {
+		super(
+				id,
+				"AK-47",
+				4,
+				30,
+				1,
+				0.95f,
+				0.1f,
+				1.2f,
+				40f,
+				30f,
+				true
+		);
+	}
+}

core/src/main/java/nl/andrewl/aos_core/model/world/Worlds.java

@@ -129,7 +129,8 @@ public final class Worlds {
 			}
 		}
 
-		world.setSpawnPoint("first", new Vector3f(0.5f, 0f, 0.5f));
+		world.setSpawnPoint("A", new Vector3f(0.5f, 0f, 0.5f));
+		world.setSpawnPoint("B", new Vector3f(20.5f, 0f, 20.5f));
 
 		return world;
 	}

core/src/main/java/nl/andrewl/aos_core/net/client/ProjectileMessage.java

@@ -0,0 +1,16 @@
+package nl.andrewl.aos_core.net.client;
+
+import nl.andrewl.aos_core.model.Projectile;
+import nl.andrewl.record_net.Message;
+
+/**
+ * A simple message with an update about a bullet. Instead of having a separate
+ * message to indicate that a bullet has been destroyed, we add it to the
+ * normal bullet message.
+ */
+public record ProjectileMessage(
+		int id, Projectile.Type type,
+		float px, float py, float pz,
+		float vx, float vy, float vz,
+		boolean destroyed
+) implements Message {}

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

@@ -1,5 +1,6 @@
 package nl.andrewl.aos2_server;
 
+import nl.andrewl.aos2_server.model.ServerPlayer;
 import nl.andrewl.aos_core.Net;
 import nl.andrewl.aos_core.model.item.ItemStack;
 import nl.andrewl.aos_core.model.world.Chunk;
@@ -163,7 +164,7 @@ public class ClientCommunicationHandler {
 		WorldIO.write(server.getWorld(), out);
 
 		// Team data.
-		var teams = server.getTeams().values();
+		var teams = server.getTeamManager().getTeams();
 		out.writeInt(teams.size());
 		for (var team : teams) {
 			out.writeInt(team.getId());

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

@@ -1,5 +1,6 @@
 package nl.andrewl.aos2_server;
 
+import nl.andrewl.aos2_server.model.ServerPlayer;
 import nl.andrewl.aos_core.Net;
 import nl.andrewl.aos_core.model.Team;
 import nl.andrewl.aos_core.net.client.PlayerJoinMessage;
@@ -78,6 +79,15 @@ public class PlayerManager {
 		return Collections.unmodifiableCollection(clientHandlers.values());
 	}
 
+	public void tick(long currentTimeMillis, float dt) {
+		for (var player : players.values()) {
+			player.getActionManager().tick(currentTimeMillis, dt, server.getWorld(), server);
+			if (player.getActionManager().isUpdated()) {
+				broadcastUdpMessage(player.getUpdateMessage(currentTimeMillis));
+			}
+		}
+	}
+
 	/**
 	 * Finds the team that's best suited for adding a new player. This is the
 	 * team that has the minimum (or tied for minimum) number of players.
@@ -86,7 +96,7 @@ public class PlayerManager {
 	private Team findBestTeamForNewPlayer() {
 		Team minTeam = null;
 		int minCount = Integer.MAX_VALUE;
-		for (var team : server.getTeams().values()) {
+		for (var team : server.getTeamManager().getTeams()) {
 			int playerCount = (int) players.values().stream()
 							.filter(p -> Objects.equals(p.getTeam(), team))
 							.count();

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

@@ -0,0 +1,58 @@
+package nl.andrewl.aos2_server;
+
+import nl.andrewl.aos2_server.model.ServerPlayer;
+import nl.andrewl.aos2_server.model.ServerProjectile;
+import nl.andrewl.aos_core.model.Projectile;
+import org.joml.Vector3f;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.Queue;
+
+public class ProjectileManager {
+	private final Server server;
+	private int nextProjectileId = 1;
+	private final Map<Integer, ServerProjectile> projectiles;
+	private final Queue<ServerProjectile> removalQueue;
+
+	public ProjectileManager(Server server) {
+		this.server = server;
+		this.projectiles = new HashMap<>();
+		this.removalQueue = new LinkedList<>();
+	}
+
+	public void spawnBullet(ServerPlayer player) {
+		int id = nextProjectileId++;
+		if (nextProjectileId == Integer.MAX_VALUE) nextProjectileId = 1;
+		Vector3f pos = new Vector3f(player.getEyePosition());
+		Vector3f vel = new Vector3f(player.getViewVector()).normalize().mul(300);
+		ServerProjectile bullet = new ServerProjectile(id, pos, vel, Projectile.Type.BULLET, player);
+		projectiles.put(bullet.getId(), bullet);
+		server.getPlayerManager().broadcastUdpMessage(bullet.toMessage(false));
+	}
+
+	public void tick(float dt) {
+		for (var projectile : projectiles.values()) {
+			tickProjectile(projectile, dt);
+		}
+		while (!removalQueue.isEmpty()) {
+			ServerProjectile projectile = removalQueue.remove();
+			projectiles.remove(projectile.getId());
+		}
+	}
+
+	private void tickProjectile(ServerProjectile projectile, float dt) {
+		projectile.getVelocity().y -= server.getConfig().physics.gravity * dt;
+		// TODO: Check if bullet will hit anything, like blocks or players, if it follows current velocity.
+		Vector3f movement = new Vector3f(projectile.getVelocity()).mul(dt);
+
+		projectile.getPosition().add(movement);
+		if (projectile.getDistanceTravelled() > 500) {
+			removalQueue.add(projectile);
+			server.getPlayerManager().broadcastUdpMessage(projectile.toMessage(true));
+		} else {
+			server.getPlayerManager().broadcastUdpMessage(projectile.toMessage(false));
+		}
+	}
+}

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

@@ -2,8 +2,8 @@ package nl.andrewl.aos2_server;
 
 import nl.andrewl.aos2_server.config.ServerConfig;
 import nl.andrewl.aos2_server.logic.WorldUpdater;
+import nl.andrewl.aos2_server.model.ServerPlayer;
 import nl.andrewl.aos_core.config.Config;
-import nl.andrewl.aos_core.model.Team;
 import nl.andrewl.aos_core.model.world.World;
 import nl.andrewl.aos_core.model.world.Worlds;
 import nl.andrewl.aos_core.net.UdpReceiver;
@@ -18,7 +18,7 @@ import org.slf4j.LoggerFactory;
 import java.io.IOException;
 import java.net.*;
 import java.nio.file.Path;
-import java.util.*;
+import java.util.List;
 import java.util.concurrent.ForkJoinPool;
 
 public class Server implements Runnable {
@@ -29,8 +29,8 @@ public class Server implements Runnable {
 	private volatile boolean running;
 	private final ServerConfig config;
 	private final PlayerManager playerManager;
-	private final Map<Integer, Team> teams;
-	private final Map<Team, String> teamSpawnPoints;
+	private final TeamManager teamManager;
+	private final ProjectileManager projectileManager;
 	private final World world;
 	private final WorldUpdater worldUpdater;
 
@@ -41,13 +41,14 @@ public class Server implements Runnable {
 		this.datagramSocket = new DatagramSocket(config.port);
 		this.datagramSocket.setReuseAddress(true);
 		this.playerManager = new PlayerManager(this);
+		this.teamManager = new TeamManager(this);
+		this.projectileManager = new ProjectileManager(this);
 		this.worldUpdater = new WorldUpdater(this, config.ticksPerSecond);
 		this.world = Worlds.testingWorld();
-		this.teams = new HashMap<>();
-		this.teamSpawnPoints = new HashMap<>();
-		// TODO: Add some way to configure teams with config files.
-		teams.put(1, new Team(1, "Red", new Vector3f(0.8f, 0, 0), world.getSpawnPoint("first")));
-		teams.put(2, new Team(2, "Blue", new Vector3f(0, 0, 0.8f), world.getSpawnPoint("first")));
+
+		// TODO: Add some way to configure teams with config files or commands.
+		teamManager.addTeam("Red", new Vector3f(0.8f, 0, 0), "A");
+		teamManager.addTeam("Blue", new Vector3f(0, 0, 0.8f), "B");
 	}
 
 	@Override
@@ -121,16 +122,12 @@ public class Server implements Runnable {
 		return playerManager;
 	}
 
-	public Map<Integer, Team> getTeams() {
-		return teams;
+	public TeamManager getTeamManager() {
+		return teamManager;
 	}
 
-	public String getSpawnPoint(Team team) {
-		return teamSpawnPoints.get(team);
-	}
-
-	public Collection<ServerPlayer> getPlayersInTeam(Team team) {
-		return playerManager.getPlayers().stream().filter(p -> Objects.equals(p.getTeam(), team)).toList();
+	public ProjectileManager getProjectileManager() {
+		return projectileManager;
 	}
 
 	public static void main(String[] args) throws IOException {

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

@@ -0,0 +1,49 @@
+package nl.andrewl.aos2_server;
+
+import nl.andrewl.aos2_server.model.ServerPlayer;
+import nl.andrewl.aos_core.model.Team;
+import org.joml.Vector3f;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Component that manages the teams on a server.
+ */
+public class TeamManager {
+	private int nextTeamId = 1;
+	private final Server server;
+	private final Map<Integer, Team> teams;
+
+	public TeamManager(Server server) {
+		this.server = server;
+		this.teams = new HashMap<>();
+	}
+
+	public synchronized void addTeam(String name, Vector3f color, String spawnPoint) {
+		int id = nextTeamId++;
+		teams.put(id, new Team(id, name, color, server.getWorld().getSpawnPoint(spawnPoint)));
+	}
+
+	public Team getTeam(int id) {
+		return teams.get(id);
+	}
+
+	public Collection<Team> getTeams() {
+		return Collections.unmodifiableCollection(teams.values());
+	}
+
+	public Collection<ServerPlayer> getPlayers(Team team) {
+		return server.getPlayerManager().getPlayers().stream()
+				.filter(p -> p.getTeam().equals(team))
+				.toList();
+	}
+
+	public Collection<ServerPlayer> getPlayers(int id) {
+		Team team = getTeam(id);
+		if (team == null) return Collections.emptyList();
+		return getPlayers(team);
+	}
+}

server/src/main/java/nl/andrewl/aos2_server/logic/PlayerActionManager.java

@@ -1,7 +1,7 @@
 package nl.andrewl.aos2_server.logic;
 
 import nl.andrewl.aos2_server.Server;
-import nl.andrewl.aos2_server.ServerPlayer;
+import nl.andrewl.aos2_server.model.ServerPlayer;
 import nl.andrewl.aos2_server.config.ServerConfig;
 import nl.andrewl.aos_core.model.item.*;
 import nl.andrewl.aos_core.model.world.World;
@@ -18,7 +18,7 @@ import org.joml.Vector3i;
 import java.util.ArrayList;
 import java.util.List;
 
-import static nl.andrewl.aos2_server.ServerPlayer.*;
+import static nl.andrewl.aos2_server.model.ServerPlayer.*;
 
 /**
  * Component that manages a server player's current actions and movement.
@@ -62,9 +62,8 @@ public class PlayerActionManager {
 		return updated;
 	}
 
-	public void tick(float dt, World world, Server server) {
+	public void tick(long now, float dt, World world, Server server) {
 		updated = false; // Reset the updated flag. This will be set to true if the player was updated in this tick.
-		long now = System.currentTimeMillis();
 		if (player.getInventory().getSelectedIndex() != lastInputState.selectedInventoryIndex()) {
 			player.getInventory().setSelectedIndex(lastInputState.selectedInventoryIndex());
 			// Tell the client that their inventory slot has been updated properly.
@@ -100,12 +99,7 @@ public class PlayerActionManager {
 				now - gunLastShotAt > gun.getShotCooldownTime() * 1000 &&
 				(gun.isAutomatic() || !gunNeedsReCock)
 		) {
-			// TODO: trace a ray from gun to see if players intersect with it.
-			var hit = world.getLookingAtPos(player.getEyePosition(), player.getViewVector(), 100);
-			if (hit != null) {
-				world.setBlockAt(hit.pos().x, hit.pos().y, hit.pos().z, (byte) 0);
-				server.getPlayerManager().broadcastUdpMessage(ChunkUpdateMessage.fromWorld(hit.pos(), world));
-			}
+			server.getProjectileManager().spawnBullet(player);
 			g.setBulletCount(g.getBulletCount() - 1);
 			gunLastShotAt = now;
 			if (!gun.isAutomatic()) {

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

@@ -52,12 +52,14 @@ public class WorldUpdater implements Runnable {
 		}
 	}
 
+	/**
+	 * The main server update method, that runs once on each game tick, and
+	 * performs all game state updates.
+	 * @param currentTimeMillis The current timestamp for the tick. This may
+	 *                          be needed for certain functions in logic.
+	 */
 	private void tick(long currentTimeMillis) {
-		for (var player : server.getPlayerManager().getPlayers()) {
-			player.getActionManager().tick(secondsPerTick, server.getWorld(), server);
-			if (player.getActionManager().isUpdated()) {
-				server.getPlayerManager().broadcastUdpMessage(player.getUpdateMessage(currentTimeMillis));
-			}
-		}
+		server.getPlayerManager().tick(currentTimeMillis, secondsPerTick);
+		server.getProjectileManager().tick(secondsPerTick);
 	}
 }

server/src/main/java/nl/andrewl/aos2_server/model/ServerPlayer.java

@@ -1,4 +1,4 @@
-package nl.andrewl.aos2_server;
+package nl.andrewl.aos2_server.model;
 
 import nl.andrewl.aos2_server.logic.PlayerActionManager;
 import nl.andrewl.aos_core.model.Player;
@@ -26,8 +26,9 @@ public class ServerPlayer extends Player {
 		super(id, username);
 		this.inventory = new Inventory(new ArrayList<>(), 0);
 		this.actionManager = new PlayerActionManager(this);
-		inventory.getItemStacks().add(new GunItemStack(ItemTypes.get("Rifle")));
-		inventory.getItemStacks().add(new BlockItemStack(ItemTypes.get("Block"), 50, (byte) 1));
+		inventory.getItemStacks().add(new GunItemStack(ItemTypes.RIFLE));
+		inventory.getItemStacks().add(new BlockItemStack(ItemTypes.BLOCK, 50, (byte) 1));
+		inventory.getItemStacks().add(new GunItemStack(ItemTypes.AK_47));
 	}
 
 	public PlayerActionManager getActionManager() {

server/src/main/java/nl/andrewl/aos2_server/model/ServerProjectile.java

@@ -0,0 +1,42 @@
+package nl.andrewl.aos2_server.model;
+
+import nl.andrewl.aos_core.model.Projectile;
+import nl.andrewl.aos_core.net.client.ProjectileMessage;
+import org.joml.Vector3f;
+
+/**
+ * A bullet with extra information about who shot it, and from where it was
+ * shot, so we can properly delete the bullet and know who is responsible
+ * for damage it causes.
+ */
+public class ServerProjectile extends Projectile {
+	private final ServerPlayer player;
+	private final Vector3f origin;
+
+	public ServerProjectile(int id, Vector3f position, Vector3f velocity, Type type, ServerPlayer player) {
+		super(id, position, velocity, type);
+		this.player = player;
+		this.origin = new Vector3f(position);
+	}
+
+	public ServerPlayer getPlayer() {
+		return player;
+	}
+
+	public Vector3f getOrigin() {
+		return origin;
+	}
+
+	public float getDistanceTravelled() {
+		return origin.distance(position);
+	}
+
+	public ProjectileMessage toMessage(boolean destroyed) {
+		return new ProjectileMessage(
+				id, type,
+				position.x, position.y, position.z,
+				velocity.x, velocity.y, velocity.z,
+				destroyed
+		);
+	}
+}