239 lines
8.5 KiB
Java
239 lines
8.5 KiB
Java
package io.gitlab.jfronny.glaunch;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import imgui.ImGui;
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import imgui.ImGuiIO;
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import imgui.flag.ImGuiConfigFlags;
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import imgui.gl3.ImGuiImplGl3;
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import imgui.glfw.ImGuiImplGlfw;
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import io.gitlab.jfronny.glaunch.gson.MinecraftArgumentDeserializer;
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import io.gitlab.jfronny.glaunch.gson.RulesDeserializer;
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import io.gitlab.jfronny.glaunch.model.MinecraftArgument;
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import io.gitlab.jfronny.glaunch.model.Rules;
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import io.gitlab.jfronny.glaunch.util.Utils;
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import io.gitlab.jfronny.glaunch.windows.MainWindow;
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import io.gitlab.jfronny.glaunch.windows.Window;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.lwjgl.glfw.*;
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import org.lwjgl.opengl.GL;
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import org.lwjgl.opengl.GL32;
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import org.lwjgl.system.MemoryStack;
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import org.lwjgl.system.MemoryUtil;
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import java.io.IOException;
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import java.io.InputStream;
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import java.nio.IntBuffer;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.LinkedHashSet;
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import java.util.Objects;
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import java.util.Set;
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//TODO generate gitignore
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//TODO mods browser
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//TODO load and launch instance from metadata
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//TODO allow instance sync through metadata
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//TODO update checker
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public class GLaunch {
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public static final Set<Window> WINDOWS = new LinkedHashSet<>();
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public static final Logger LOGGER = LogManager.getFormatterLogger("GLaunch");
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public static final Gson GSON = new GsonBuilder()
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.registerTypeAdapter(MinecraftArgument.class, new MinecraftArgumentDeserializer())
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.registerTypeAdapter(Rules.class, new RulesDeserializer())
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.create();
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//TODO allow moving to .config or elsewhere
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public static final Path CACHE_DIR = Path.of("run/cache");
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public static final Path INSTANCE_DIR = Path.of("run/instances");
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public static final Path ASSETS_DIR = Path.of("run/assets");
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public static final Path LIBRARIES_DIR = Path.of("run/libraries");
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private static final Path CONFIG_PATH = Path.of("run/glaunch2.json");
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public static Config CONFIG;
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public static void main(String[] args) throws IOException {
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LOGGER.info("Setting up cache dir");
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if (!Files.exists(CONFIG_PATH)) Utils.writeObject(CONFIG_PATH, new Config());
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CONFIG = Utils.loadObject(CONFIG_PATH, Config.class);
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if (!Files.exists(CACHE_DIR)) Files.createDirectories(CACHE_DIR);
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if (!Files.exists(INSTANCE_DIR)) Files.createDirectories(INSTANCE_DIR);
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if (!Files.exists(ASSETS_DIR)) Files.createDirectories(ASSETS_DIR);
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if (!Files.exists(LIBRARIES_DIR)) Files.createDirectories(LIBRARIES_DIR);
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LOGGER.info("Initializing UI");
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WINDOWS.add(new MainWindow());
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init();
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run();
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dispose();
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}
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public static void saveConfig() {
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try {
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Utils.writeObject(CONFIG_PATH, CONFIG);
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} catch (IOException e) {
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LOGGER.error("Could not save config", e);
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}
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}
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public static void open(Window window) {
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WINDOWS.add(window);
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}
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private static final ImGuiImplGlfw imGuiGlfw = new ImGuiImplGlfw();
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private static final ImGuiImplGl3 imGuiGl3 = new ImGuiImplGl3();
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private static String glslVersion = null;
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/**
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* Pointer to the native GLFW window.
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*/
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protected static long handle;
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/**
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* Method to initialize application.
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*/
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protected static void init() {
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initWindow();
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initImGui();
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imGuiGlfw.init(handle, true);
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imGuiGl3.init(glslVersion);
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}
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/**
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* Method to dispose all used application resources and destroy its window.
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*/
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protected static void dispose() {
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imGuiGl3.dispose();
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imGuiGlfw.dispose();
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ImGui.destroyContext();
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Callbacks.glfwFreeCallbacks(handle);
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GLFW.glfwDestroyWindow(handle);
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GLFW.glfwTerminate();
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Objects.requireNonNull(GLFW.glfwSetErrorCallback(null)).free();
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}
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/**
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* Method to create and initialize GLFW window.
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*/
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protected static void initWindow() {
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GLFWErrorCallback.createPrint(System.err).set();
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if (!GLFW.glfwInit()) {
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throw new IllegalStateException("Unable to initialize GLFW");
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}
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decideGlGlslVersions();
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GLFW.glfwWindowHint(GLFW.GLFW_VISIBLE, GLFW.GLFW_FALSE);
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GLFW.glfwWindowHint(GLFW.GLFW_RESIZABLE, GLFW.GLFW_FALSE);
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handle = GLFW.glfwCreateWindow(10, 10, "GLaunch", MemoryUtil.NULL, MemoryUtil.NULL);
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if (handle == MemoryUtil.NULL) {
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throw new RuntimeException("Failed to create the GLFW window");
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}
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try (MemoryStack stack = MemoryStack.stackPush()) {
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final IntBuffer pWidth = stack.mallocInt(1); // int*
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final IntBuffer pHeight = stack.mallocInt(1); // int*
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GLFW.glfwGetWindowSize(handle, pWidth, pHeight);
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final GLFWVidMode vidmode = Objects.requireNonNull(GLFW.glfwGetVideoMode(GLFW.glfwGetPrimaryMonitor()));
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GLFW.glfwSetWindowPos(handle, (vidmode.width() - pWidth.get(0)) / 2, (vidmode.height() - pHeight.get(0)) / 2);
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}
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GLFW.glfwMakeContextCurrent(handle);
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GL.createCapabilities();
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GLFW.glfwSwapInterval(GLFW.GLFW_TRUE);
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clearBuffer();
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renderBuffer();
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}
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private static void decideGlGlslVersions() {
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final boolean isMac = System.getProperty("os.name").toLowerCase().contains("mac");
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if (isMac) {
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glslVersion = "#version 150";
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GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MAJOR, 3);
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GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MINOR, 2);
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GLFW.glfwWindowHint(GLFW.GLFW_OPENGL_PROFILE, GLFW.GLFW_OPENGL_CORE_PROFILE); // 3.2+ only
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GLFW.glfwWindowHint(GLFW.GLFW_OPENGL_FORWARD_COMPAT, GLFW.GLFW_TRUE); // Required on Mac
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} else {
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glslVersion = "#version 130";
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GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MAJOR, 3);
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GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MINOR, 0);
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}
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}
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/**
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* Method to initialize Dear ImGui context. Could be overridden to do custom Dear ImGui setup before application start.
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*/
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protected static void initImGui() {
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ImGui.createContext();
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ImGuiIO io = ImGui.getIO();
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io.addConfigFlags(ImGuiConfigFlags.ViewportsEnable);
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//io.setConfigViewportsNoDecoration(false);
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io.setConfigViewportsNoAutoMerge(true);
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//TODO use included icons (https://www.nerdfonts.com/cheat-sheet)
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//Nerd Fonts-patched ubuntu font
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try (InputStream is = GLaunch.class.getClassLoader().getResourceAsStream("font.ttf")) {
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assert is != null;
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io.setFontDefault(io.getFonts().addFontFromMemoryTTF(is.readAllBytes(), 16f));
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} catch (IOException e) {
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e.printStackTrace();
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}
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applyTheme();
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}
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/**
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* Main application loop.
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*/
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protected static void run() {
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while (!GLFW.glfwWindowShouldClose(handle)) {
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//frame
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clearBuffer();
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imGuiGlfw.newFrame();
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ImGui.newFrame();
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//render
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if (GLaunch.WINDOWS.isEmpty()) exit();
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else {
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for (Window window : GLaunch.WINDOWS.toArray(new Window[0])) {
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if (window.isNew()) window.preFirstDraw();
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if (ImGui.begin(window.getName(), window.getOpenState(), window.getFlags())) window.draw();
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ImGui.end();
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if (!window.getOpenState().get()) window.close();
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}
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}
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//end frame
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ImGui.render();
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imGuiGl3.renderDrawData(ImGui.getDrawData());
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if (ImGui.getIO().hasConfigFlags(ImGuiConfigFlags.ViewportsEnable)) {
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final long backupWindowPtr = GLFW.glfwGetCurrentContext();
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ImGui.updatePlatformWindows();
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ImGui.renderPlatformWindowsDefault();
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GLFW.glfwMakeContextCurrent(backupWindowPtr);
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}
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renderBuffer();
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}
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}
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private static void clearBuffer() {
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GL32.glClear(GL32.GL_COLOR_BUFFER_BIT | GL32.GL_DEPTH_BUFFER_BIT);
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}
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private static void renderBuffer() {
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GLFW.glfwSwapBuffers(handle);
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GLFW.glfwPollEvents();
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}
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public static void exit() {
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GLFW.glfwSetWindowShouldClose(handle, true); //TODO fix hs_error_pid
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}
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public static void applyTheme() {
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if (CONFIG.darkTheme) ImGui.styleColorsDark();
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else ImGui.styleColorsLight();
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}
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}
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