Added gunshot raytracing for environmental damage.

client/src/main/java/nl/andrewl/aos2_client/sound/SoundManager.java

@@ -1,6 +1,5 @@
 package nl.andrewl.aos2_client.sound;
 
-import nl.andrewl.aos2_client.model.ClientPlayer;
 import org.joml.Vector3f;
 import org.lwjgl.openal.AL;
 import org.lwjgl.openal.ALC;
@@ -11,9 +10,12 @@ import java.nio.IntBuffer;
 import java.util.HashMap;
 import java.util.Map;
 
-import static org.lwjgl.openal.ALC10.*;
 import static org.lwjgl.openal.AL10.*;
+import static org.lwjgl.openal.ALC10.*;
 
+/**
+ * Main class for managing the OpenAL audio interface.
+ */
 public class SoundManager {
 	private final long alContext;
 	private final Map<String, Integer> audioBuffers = new HashMap<>();
@@ -24,7 +26,6 @@ public class SoundManager {
 		alContext = alcCreateContext(device, (IntBuffer) null);
 		alcMakeContextCurrent(alContext);
 		AL.createCapabilities(capabilities);
-
 	}
 
 	public void load(String name, String resource) {

client/src/main/java/nl/andrewl/aos2_client/sound/WaveData.java

@@ -44,7 +44,7 @@ public class WaveData {
 		}
 	}
 
-	private ByteBuffer loadData() {
+	private void loadData() {
 		try {
 			int bytesRead = audioStream.read(dataArray, 0, totalBytes);
 			data.clear();
@@ -54,7 +54,6 @@ public class WaveData {
 			e.printStackTrace();
 			System.err.println("Couldn't read bytes from audio stream!");
 		}
-		return data;
 	}
 
 
@@ -62,7 +61,7 @@ public class WaveData {
 		InputStream stream = WaveData.class.getClassLoader().getResourceAsStream(file);
 		if (stream == null) {
 			System.err.println("Couldn't find file: " + file);
-			return null;
+			throw new RuntimeException();
 		}
 		InputStream bufferedInput = new BufferedInputStream(stream);
 		AudioInputStream audioStream;

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

@@ -14,7 +14,7 @@ public class Gun extends Item {
 	private final float reloadTime;
 	private final float baseDamage;
 	private final float recoil;
-	private boolean automatic;
+	private final boolean automatic;
 
 	public Gun(
 			int id,

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

@@ -180,43 +180,26 @@ public class World {
 		float factorY = Float.MAX_VALUE;
 		float factorZ = Float.MAX_VALUE;
 
-		if (dir.x != 0) {
+		if (dir.x != 0) factorX = factorToNextValue(pos.x, dir.x);
-			float nextValue;
+		if (dir.y != 0) factorY = factorToNextValue(pos.y, dir.y);
-			if (dir.x > 0) {
+		if (dir.z != 0) factorZ = factorToNextValue(pos.z, dir.z);
-				nextValue = (Math.ceil(pos.x) == pos.x) ? pos.x + 1 : Math.ceil(pos.x);
-			} else {
-				nextValue = Math.floor(pos.x) - DELTA;
-			}
-			float diff = nextValue - pos.x;
-			factorX = Math.abs(diff / dir.x);
-		}
-
-		if (dir.y != 0) {
-			float nextValue;
-			if (dir.y > 0) {
-				nextValue = (Math.ceil(pos.y) == pos.y) ? pos.y + 1 : Math.ceil(pos.y);
-			} else {
-				nextValue = Math.floor(pos.y) - DELTA;
-			}
-			float diff = nextValue - pos.y;
-			factorY = Math.abs(diff / dir.y);
-		}
-
-		if (dir.z != 0) {
-			float nextValue;
-			if (dir.z > 0) {
-				nextValue = (Math.ceil(pos.z) == pos.z) ? pos.z + 1 : Math.ceil(pos.z);
-			} else {
-				nextValue = Math.floor(pos.z) - DELTA;
-			}
-			float diff = nextValue - pos.z;
-			factorZ = Math.abs(diff / dir.z);
-		}
 
 		float minFactor = Math.min(factorX, Math.min(factorY, factorZ));
 		dir.mulAdd(minFactor, pos, pos);
 	}
 
+	private static float factorToNextValue(float n, float dir) {
+		if (dir == 0) return 0;
+		float nextValue;
+		if (dir > 0) {
+			nextValue = (Math.ceil(n) == n) ? n + 1 : Math.ceil(n);
+		} else {
+			nextValue = Math.floor(n) - DELTA;
+		}
+		float diff = nextValue - n;
+		return Math.abs(diff / dir);
+	}
+
 	/**
 	 * Gets the chunk position at the specified world position.
 	 * @param x The x coordinate.

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

@@ -101,6 +101,11 @@ public class PlayerActionManager {
 				(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));
+			}
 			g.setBulletCount(g.getBulletCount() - 1);
 			gunLastShotAt = now;
 			if (!gun.isAutomatic()) {