MidnightControls 0.1.0 (Beta)

Changes from LambdaControls:
- Support for Steam Deck and Dualsense
- Support for L4, L5, R4, R5 buttons
- Updated Libraries
- New Logo and Name
- Lots of Bugfixes
- MidnightConfig backend

src/main/java/eu/midnightdust/midnightcontrols/client/controller/Controller.java

@@ -0,0 +1,188 @@
+/*
+ * Copyright © 2021 LambdAurora <aurora42lambda@gmail.com>
+ *
+ * This file is part of midnightcontrols.
+ *
+ * Licensed under the MIT license. For more information,
+ * see the LICENSE file.
+ */
+
+package eu.midnightdust.midnightcontrols.client.controller;
+
+import eu.midnightdust.midnightcontrols.MidnightControls;
+import eu.midnightdust.midnightcontrols.client.MidnightControlsClient;
+import eu.midnightdust.midnightcontrols.client.MidnightControlsConfig;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.toast.SystemToast;
+import net.minecraft.text.LiteralText;
+import net.minecraft.text.TranslatableText;
+import org.aperlambda.lambdacommon.utils.Nameable;
+import org.jetbrains.annotations.NotNull;
+import org.lwjgl.glfw.GLFW;
+import org.lwjgl.glfw.GLFWGamepadState;
+import org.lwjgl.system.MemoryStack;
+import org.lwjgl.system.MemoryUtil;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+import static org.lwjgl.BufferUtils.createByteBuffer;
+
+/**
+ * Represents a controller.
+ *
+ * @author LambdAurora
+ * @version 1.7.0
+ * @since 1.0.0
+ */
+public record Controller(int id) implements Nameable {
+    private static final Map<Integer, Controller> CONTROLLERS = new HashMap<>();
+
+    /**
+     * Gets the controller's globally unique identifier.
+     *
+     * @return the controller's GUID
+     */
+    public String getGuid() {
+        String guid = GLFW.glfwGetJoystickGUID(this.id);
+        return guid == null ? "" : guid;
+    }
+
+    /**
+     * Returns whether this controller is connected or not.
+     *
+     * @return true if this controller is connected, else false
+     */
+    public boolean isConnected() {
+        return GLFW.glfwJoystickPresent(this.id);
+    }
+
+    /**
+     * Returns whether this controller is a gamepad or not.
+     *
+     * @return true if this controller is a gamepad, else false
+     */
+    public boolean isGamepad() {
+        return this.isConnected() && GLFW.glfwJoystickIsGamepad(this.id);
+    }
+
+    /**
+     * Gets the name of the controller.
+     *
+     * @return the controller's name
+     */
+    @Override
+    public String getName() {
+        var name = this.isGamepad() ? GLFW.glfwGetGamepadName(this.id) : GLFW.glfwGetJoystickName(this.id);
+        return name == null ? String.valueOf(this.id()) : name;
+    }
+
+    /**
+     * Gets the state of the controller.
+     *
+     * @return the state of the controller input
+     */
+    public GLFWGamepadState getState() {
+        var state = GLFWGamepadState.create();
+        if (this.isGamepad())
+            GLFW.glfwGetGamepadState(this.id, state);
+        return state;
+    }
+
+    public static Controller byId(int id) {
+        if (id > GLFW.GLFW_JOYSTICK_LAST) {
+            MidnightControlsClient.get().log("Controller '" + id + "' doesn't exist.");
+            id = GLFW.GLFW_JOYSTICK_LAST;
+        }
+        Controller controller;
+        if (CONTROLLERS.containsKey(id))
+            return CONTROLLERS.get(id);
+        else {
+            controller = new Controller(id);
+            CONTROLLERS.put(id, controller);
+            return controller;
+        }
+    }
+
+    public static Optional<Controller> byGuid(@NotNull String guid) {
+        return CONTROLLERS.values().stream().filter(Controller::isConnected)
+                .filter(controller -> controller.getGuid().equals(guid))
+                .max(Comparator.comparingInt(Controller::id));
+    }
+
+    /**
+     * Reads the specified resource and returns the raw data as a ByteBuffer.
+     *
+     * @param resource the resource to read
+     * @param bufferSize the initial buffer size
+     * @return the resource data
+     * @throws IOException If an IO error occurs.
+     */
+    private static ByteBuffer ioResourceToBuffer(String resource, int bufferSize) throws IOException {
+        ByteBuffer buffer = null;
+
+        var path = Paths.get(resource);
+        if (Files.isReadable(path)) {
+            try (var fc = Files.newByteChannel(path)) {
+                buffer = createByteBuffer((int) fc.size() + 2);
+                while (fc.read(buffer) != -1) ;
+                buffer.put((byte) 0);
+            }
+        }
+
+        buffer.flip(); // Force Java 8 >.<
+        return buffer;
+    }
+
+    /**
+     * Updates the controller mappings.
+     */
+    public static void updateMappings() {
+        try {
+            if (!MidnightControlsClient.MAPPINGS_FILE.exists())
+                return;
+            MidnightControlsClient.get().log("Updating controller mappings...");
+            var buffer = ioResourceToBuffer(MidnightControlsClient.MAPPINGS_FILE.getPath(), 1024);
+            GLFW.glfwUpdateGamepadMappings(buffer);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        try (var memoryStack = MemoryStack.stackPush()) {
+            var pointerBuffer = memoryStack.mallocPointer(1);
+            int i = GLFW.glfwGetError(pointerBuffer);
+            if (i != 0) {
+                long l = pointerBuffer.get();
+                var string = l == 0L ? "" : MemoryUtil.memUTF8(l);
+                var client = MinecraftClient.getInstance();
+                if (client != null) {
+                    client.getToastManager().add(SystemToast.create(client, SystemToast.Type.TUTORIAL_HINT,
+                            new TranslatableText("midnightcontrols.controller.mappings.error"), new LiteralText(string)));
+                }
+            }
+        } catch (Throwable e) {
+            /* Ignored :concern: */
+        }
+
+        if (MidnightControlsConfig.debug) {
+            for (int i = GLFW.GLFW_JOYSTICK_1; i <= GLFW.GLFW_JOYSTICK_16; i++) {
+                var controller = byId(i);
+
+                if (!controller.isConnected())
+                    continue;
+
+                MidnightControls.get().log(String.format("Controller #%d name: \"%s\"\n GUID: %s\n Gamepad: %s",
+                        controller.id,
+                        controller.getName(),
+                        controller.getGuid(),
+                        controller.isGamepad()));
+            }
+        }
+    }
+}