lower java version requirement to 14

ReadMe.md

@@ -28,7 +28,7 @@ Minosoft is an open source minecraft client, written from scratch in kotlin (and
 - RAM: ~500Mib. With overhead, etc 2Gib recommended
 - Disk space: Minosoft itself is pretty small (2-3 Mib), the libraries are a bit bigger. You also need to have the "normal" minecraft assets (~ 300 MB for one version).
 - GPU: OpenGL 3.3+. Every moden GPU works and is recommended.
-- Java 16 (This is really important, we use features that are only available in this version. Java 8 is currently **not** supported).
+- Java 14+, 16 recommended (This is really important, we use features that are only available in this version. Java 8 is currently **not** supported).
 
 ## Rendering
 

src/main/java/de/bixilon/minosoft/data/commands/CommandNode.java

@@ -116,13 +116,13 @@ public abstract class CommandNode {
         if (stringReader.getRemainingLength() == 0) {
             if (this.isExecutable) {
                 if (this.executor != null) {
-                    if (this.executor instanceof CommandExecutor commandExecutor) {
-                        commandExecutor.execute(stack);
-                    } else if (this.executor instanceof CommandConnectionExecutor commandConnectionExecutor) {
+                    if (this.executor instanceof CommandExecutor) {
+                        ((CommandExecutor) this.executor).execute(stack);
+                    } else if (this.executor instanceof CommandConnectionExecutor) {
                         if (connection == null) {
                             throw new NoConnectionCommandParseException(stringReader, stringReader.getString());
                         }
-                        commandConnectionExecutor.execute(connection, stack);
+                        ((CommandConnectionExecutor) this.executor).execute(connection, stack);
                     }
                 }
 
@@ -171,11 +171,12 @@ public abstract class CommandNode {
 
     public CommandNode addChildren(Set<CommandNode> children) {
         for (CommandNode child : children) {
-            if (child instanceof CommandArgumentNode argumentNode) {
-                this.argumentsChildren.add(argumentNode);
+            if (child instanceof CommandArgumentNode) {
+                this.argumentsChildren.add(((CommandArgumentNode) child));
                 continue;
             }
-            if (child instanceof CommandLiteralNode literalNode) {
+            if (child instanceof CommandLiteralNode) {
+                CommandLiteralNode literalNode = (CommandLiteralNode) child;
                 this.literalChildren.put(literalNode.getName(), literalNode);
             }
         }

src/main/java/de/bixilon/minosoft/data/mappings/LegacyResourceLocation.kt

@@ -10,36 +10,25 @@
  *
  * This software is not affiliated with Mojang AB, the original developer of Minecraft.
  */
+package de.bixilon.minosoft.data.mappings
 
-package de.bixilon.minosoft.data.mappings;
+class LegacyResourceLocation(resourceLocation: String) : ResourceLocation("", resourceLocation) {
+    override val full: String = path
 
-public class LegacyResourceLocation extends ResourceLocation {
-
-    public LegacyResourceLocation(String resourceLocation) {
-        super(null, resourceLocation);
+    override fun hashCode(): Int {
+        return this.path.hashCode()
     }
 
-    @Override
-    public String getFull() {
-        return getPath();
+    override fun equals(other: Any?): Boolean {
+        if (other === this) {
+            return true
         }
-
-    @Override
-    public int hashCode() {
-        return this.path.hashCode();
+        if (hashCode() != other.hashCode()) {
+            return false
         }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (super.equals(obj)) {
-            return true;
+        if (other !is ResourceLocation) {
+            return false
         }
-        if (hashCode() != obj.hashCode()) {
-            return false;
-        }
-        if (obj instanceof ResourceLocation legacyResourceLocation) {
-            return getPath().equals(legacyResourceLocation.getPath());
-        }
-        return false;
+        return path == other.path
     }
 }

src/main/java/de/bixilon/minosoft/data/mappings/ResourceLocation.java

@@ -1,107 +0,0 @@
-/*
- * Minosoft
- * Copyright (C) 2020 Moritz Zwerger
- *
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- * This software is not affiliated with Mojang AB, the original developer of Minecraft.
- */
-
-package de.bixilon.minosoft.data.mappings;
-
-import de.bixilon.minosoft.protocol.protocol.ProtocolDefinition;
-import de.bixilon.minosoft.util.Util;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Objects;
-
-public class ResourceLocation implements Comparable<ResourceLocation> {
-    public final String full;
-    protected final String namespace;
-    protected final String path;
-
-    public ResourceLocation(String namespace, String path) {
-        this.namespace = namespace;
-        this.path = path;
-        this.full = namespace + ":" + path;
-    }
-
-    public ResourceLocation(String full) {
-        String[] split = full.split(":");
-        if (split.length == 1) {
-            this.namespace = ProtocolDefinition.DEFAULT_NAMESPACE;
-            this.path = full;
-        } else {
-            this.namespace = split[0];
-            this.path = split[1];
-        }
-        this.full = this.namespace + ":" + this.path;
-    }
-
-    public static ResourceLocation getResourceLocation(String resourceLocation) throws IllegalArgumentException {
-        // if (!ProtocolDefinition.RESOURCE_LOCATION_PATTERN.matcher(resourceLocation).matches()) {
-        //     throw new IllegalArgumentException(String.format("%s in not a valid resource location!", resourceLocation));
-        // }
-
-        if (Util.doesStringContainsUppercaseLetters(resourceLocation)) {
-            // just a string but wrapped into a resourceLocation (like old plugin channels MC|BRAND or ...)
-            return new LegacyResourceLocation(resourceLocation);
-        }
-
-        return new ResourceLocation(resourceLocation);
-    }
-
-    public static ResourceLocation getPathResourceLocation(String resourceLocation) {
-        if (resourceLocation.contains(":")) {
-            return new ResourceLocation(resourceLocation);
-        }
-        String[] split = resourceLocation.split("/", 2);
-        return new ResourceLocation(split[0], split[1]);
-    }
-
-    public String getNamespace() {
-        return this.namespace;
-    }
-
-    public String getPath() {
-        return this.path;
-    }
-
-    public String getFull() {
-        return this.full;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(this.namespace, this.path);
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (super.equals(obj)) {
-            return true;
-        }
-        if (hashCode() != obj.hashCode()) {
-            return false;
-        }
-        if (obj instanceof LegacyResourceLocation legacyModIdentifier) {
-            return getPath().equals(legacyModIdentifier.getPath());
-        }
-        ResourceLocation their = (ResourceLocation) obj;
-        return getPath().equals(their.getPath()) && getNamespace().equals(their.getNamespace());
-    }
-
-    @Override
-    public String toString() {
-        return getFull();
-    }
-
-    @Override
-    public int compareTo(@NotNull ResourceLocation resourceLocation) {
-        return resourceLocation.hashCode() - this.hashCode();
-    }
-}

src/main/java/de/bixilon/minosoft/data/mappings/ResourceLocation.kt

@@ -0,0 +1,92 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.data.mappings
+
+import de.bixilon.minosoft.protocol.protocol.ProtocolDefinition
+import de.bixilon.minosoft.util.Util
+import java.util.*
+
+open class ResourceLocation(
+    val namespace: String = ProtocolDefinition.DEFAULT_NAMESPACE,
+    val path: String,
+) : Comparable<ResourceLocation> { // compare is for moshi
+    open val full: String = "$namespace:$path"
+
+    constructor(full: String) : this(full.namespace, full.path)
+
+    override fun hashCode(): Int {
+        return Objects.hash(namespace, path)
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (other === this) {
+            return true
+        }
+        if (hashCode() != other.hashCode()) {
+            return false
+        }
+        if (other is LegacyResourceLocation) {
+            return path == other.path
+        }
+        if (other !is ResourceLocation) {
+            return false
+        }
+        return path == other.path && namespace == other.namespace
+    }
+
+    override fun toString(): String {
+        return full
+    }
+
+    companion object {
+        val String.namespace: String
+            get() {
+                val split = this.split(':', limit = 2)
+                if (split.size == 1) {
+                    return ProtocolDefinition.DEFAULT_NAMESPACE
+                }
+                return split[0]
+            }
+
+        val String.path: String
+            get() {
+                val split = this.split(':', limit = 2)
+                if (split.size == 1) {
+                    return split[0]
+                }
+                return split[1]
+            }
+
+        fun getResourceLocation(resourceLocation: String): ResourceLocation {
+            // if (!ProtocolDefinition.RESOURCE_LOCATION_PATTERN.matcher(resourceLocation).matches()) {
+            //     throw new IllegalArgumentException(String.format("%s in not a valid resource location!", resourceLocation));
+            // }
+            return if (Util.doesStringContainsUppercaseLetters(resourceLocation)) {
+                // just a string but wrapped into a resourceLocation (like old plugin channels MC|BRAND or ...)
+                LegacyResourceLocation(resourceLocation)
+            } else ResourceLocation(resourceLocation)
+        }
+
+        fun getPathResourceLocation(resourceLocation: String): ResourceLocation {
+            if (resourceLocation.contains(":")) {
+                return ResourceLocation(resourceLocation)
+            }
+            val split = resourceLocation.split("/".toRegex(), 2).toTypedArray()
+            return ResourceLocation(split[0], split[1])
+        }
+    }
+
+    override fun compareTo(other: ResourceLocation): Int {
+        return hashCode() - other.hashCode()
+    }
+}

src/main/java/de/bixilon/minosoft/data/text/HoverEvent.java

@@ -62,7 +62,16 @@ public class HoverEvent {
         SHOW_ACHIEVEMENT
     }
 
-    public static record EntityHoverData(UUID uuid, ResourceLocation resourceLocation, ChatComponent name) {
+    public static final class EntityHoverData {
+        private final UUID uuid;
+        private final ResourceLocation resourceLocation;
+        private final ChatComponent name;
+
+        public EntityHoverData(UUID uuid, ResourceLocation resourceLocation, ChatComponent name) {
+            this.uuid = uuid;
+            this.resourceLocation = resourceLocation;
+            this.name = name;
+        }
 
         public static EntityHoverData deserialize(JsonElement data) {
             JsonObject json;
@@ -81,5 +90,17 @@ public class HoverEvent {
             }
             return new EntityHoverData(Util.getUUIDFromString(json.get("id").getAsString()), type, ChatComponent.Companion.of(json.get("name")));
         }
+
+        public UUID uuid() {
+            return this.uuid;
+        }
+
+        public ResourceLocation resourceLocation() {
+            return this.resourceLocation;
+        }
+
+        public ChatComponent name() {
+            return this.name;
+        }
     }
 }

src/main/java/de/bixilon/minosoft/gui/main/GUITools.java

@@ -75,8 +75,8 @@ public class GUITools {
 
     public static Scene initializeScene(Scene scene) {
         scene.getStylesheets().add("/assets/minosoft/layout/style.css"); // ToDo: Migrate to minosoft assets manager
-        if (scene.getWindow() instanceof Stage stage) {
-            stage.getIcons().add(MINOSOFT_LOGO);
+        if (scene.getWindow() instanceof Stage) {
+            ((Stage) scene.getWindow()).getIcons().add(MINOSOFT_LOGO);
         }
         return scene;
     }
@@ -93,7 +93,8 @@ public class GUITools {
         stage.initModality(modality);
         double width = 600;
         double height = 400;
-        if (root instanceof Pane pane) {
+        if (root instanceof Pane) {
+            Pane pane = (Pane) root;
             width = pane.getPrefWidth();
             height = pane.getPrefHeight();
         }

src/main/java/de/bixilon/minosoft/gui/rendering/particle/types/norender/ExplosionEmitterParticle.kt

@@ -18,6 +18,7 @@ import de.bixilon.minosoft.data.mappings.particle.data.ParticleData
 import de.bixilon.minosoft.gui.rendering.particle.ParticleFactory
 import de.bixilon.minosoft.gui.rendering.particle.ParticleRenderer
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.ExplosionParticle
+import de.bixilon.minosoft.gui.rendering.util.VecUtil.plus
 import de.bixilon.minosoft.protocol.network.connection.PlayConnection
 import de.bixilon.minosoft.util.KUtil.asResourceLocation
 import glm_.vec3.Vec3
@@ -33,11 +34,8 @@ class ExplosionEmitterParticle(connection: PlayConnection, particleRenderer: Par
     override fun realTick() {
         super.realTick()
         for (i in 0 until 6) {
-            val position = Vec3(
-                x = position.x + (random.nextFloat() - random.nextFloat()) * 4.0f,
-                y = position.y + (random.nextFloat() - random.nextFloat()) * 4.0f,
-                z = position.z + (random.nextFloat() - random.nextFloat()) * 4.0f
-            )
+            val position = position + { (random.nextFloat() - random.nextFloat()) * 4.0f }
+
             particleRenderer.add(ExplosionParticle(connection, particleRenderer, position, explosionParticleType.simple(), (tickAge.toFloat() / maxTickAge)))
         }
     }

src/main/java/de/bixilon/minosoft/gui/rendering/util/VecUtil.kt

@@ -76,6 +76,14 @@ object VecUtil {
         )
     }
 
+    infix operator fun Vec3.plus(lambda: () -> Float): Vec3 {
+        return Vec3(
+            x = x + lambda(),
+            y = y + lambda(),
+            z = z + lambda(),
+        )
+    }
+
     fun getRotatedValues(x: Float, y: Float, sin: Float, cos: Float, rescale: Boolean): Vec2 {
         val result = Vec2(x * cos - y * sin, x * sin + y * cos)
         if (rescale) {

src/main/java/de/bixilon/minosoft/protocol/network/socket/BlockingSocketNetwork.java

@@ -199,9 +199,9 @@ public class BlockingSocketNetwork extends Network {
 
                     this.outputStream.write(prepareC2SPacket(packet));
                     this.outputStream.flush();
-                    if (packet instanceof EncryptionResponseC2SP packetEncryptionResponse) {
+                    if (packet instanceof EncryptionResponseC2SP) {
                         // enable encryption
-                        enableEncryption(packetEncryptionResponse.getSecretKey());
+                        enableEncryption(((EncryptionResponseC2SP) packet).getSecretKey());
                         // wake up other thread
                         this.socketReceiveThread.interrupt();
                     }

src/main/java/de/bixilon/minosoft/protocol/network/socket/NonBlockingSocketNetwork.java

@@ -89,9 +89,9 @@ public class NonBlockingSocketNetwork extends Network {
                             this.socketChannel.write(sendBuffer);
                         }
 
-                        if (packet instanceof EncryptionResponseC2SP packetEncryptionResponse) {
+                        if (packet instanceof EncryptionResponseC2SP) {
                             // enable encryption
-                            enableEncryption(packetEncryptionResponse.getSecretKey());
+                            enableEncryption(((EncryptionResponseC2SP) packet).getSecretKey());
                         }
 
                     }