2 files changed, 151 insertions, 0 deletions
diff --git a/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java b/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java
index 3c710c3..92df1b1 100644
--- a/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java
+++ b/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java
@@ -16,4 +16,9 @@ public final class GuiUtils {
     public static void displayScreen(GuiScreen screen) {
         new TickDelay(() -> UScreen.displayScreen(screen), 1);
     }
+
+    /** Close the current open GUI screen. */
+    public static void closeScreen() {
+        UScreen.displayScreen(null);
+    }
 }
diff --git a/src/main/java/cc/polyfrost/oneconfig/utils/OneUIScreen.java b/src/main/java/cc/polyfrost/oneconfig/utils/OneUIScreen.java
new file mode 100644
index 0000000..6aaec37
--- /dev/null
+++ b/src/main/java/cc/polyfrost/oneconfig/utils/OneUIScreen.java
@@ -0,0 +1,146 @@
+package cc.polyfrost.oneconfig.utils;
+
+import cc.polyfrost.oneconfig.libs.universal.UMatrixStack;
+import cc.polyfrost.oneconfig.libs.universal.UScreen;
+import cc.polyfrost.oneconfig.lwjgl.RenderManager;
+import net.minecraft.client.gui.GuiScreen;
+import org.jetbrains.annotations.NotNull;
+import org.lwjgl.input.Mouse;
+
+/**
+ * <h1>OneUIScreen</h1>
+ * OneUIScreen is a GUI that can be used to render things on the client's screen.
+ * It contains many handy methods for rendering, including {@link #draw(long, float)} for drawing using OneConfig's {@link RenderManager}.
+ * <p> It also contains methods for mouse input. (see {@link InputUtils} for more utils).
+ * <p></p>
+ * Use {@link GuiUtils#displayScreen(GuiScreen)} to display a screen; and {@link GuiUtils#closeScreen()} to close it.
+ */
+public abstract class OneUIScreen extends UScreen {
+    private boolean mouseDown;
+    private boolean blockClicks;
+
+    /**
+     * Create a new OneUIScreen.
+     *
+     * @param restoreGuiOnClose use this to declare weather or not to open the Gui that was open before it when this screen is closed.
+     */
+    public OneUIScreen(boolean restoreGuiOnClose) {
+        super(restoreGuiOnClose);
+    }
+
+    /**
+     * Create a new OneUIScreen.
+     */
+    public OneUIScreen() {
+        super(false);
+    }
+
+    @Override
+    public void onDrawScreen(@NotNull UMatrixStack matrixStack, int mouseX, int mouseY, float partialTicks) {
+        super.onDrawScreen(matrixStack, mouseX, mouseY, partialTicks);
+        RenderManager.setupAndDraw(ignoreMinecraftScale(), vg -> draw(vg, partialTicks));
+        mouseDown = Mouse.isButtonDown(0);
+    }
+
+    /**
+     * This method is called when the screen is first opened. You can use it to set variables, initialize things, etc.
+     */
+    public abstract void onScreenOpen();
+
+    /**
+     * Use this method to draw things on the screen. It is called every render tick, and has a handy <code>vg</code> (NanoVG context) that can be used with the {@link RenderManager} to draw things.
+     * <p></p>
+     * For example: <d> <code>{@link RenderManager#drawRoundedRect(long, float, float, float, float, int, float)} </code>
+     *
+     * @param vg           the NanoVG context you can use to render things with
+     * @param partialTicks the time between ticks (You can use this as a deltaTime equivalent)
+     */
+    public abstract void draw(long vg, float partialTicks);
+
+    /**
+     * This method is called when the screen is closed. You can use it to clean up things, etc.
+     */
+    @Override
+    public abstract void onScreenClose();
+
+    @Override
+    public void initScreen(int width, int height) {
+        onScreenOpen();
+    }
+
+    /**
+     * Use this method to set weather or not to use the Minecraft scale on the GUI. Its default is true, and that is recommended for the NanoVG rendering.
+     */
+    public boolean ignoreMinecraftScale() {
+        return true;
+    }
+
+    /**
+     * Use this method to declare weather or not this Screen pauses the game when it is open. (Single-player only) Its default is false.
+     */
+    public boolean doesScreenPauseGame() {
+        return false;
+    }
+
+    @Override
+    public boolean doesGuiPauseGame() {
+        return doesScreenPauseGame();
+    }
+
+
+    /**
+     * Get the current x position of the mouse.
+     */
+    public int getMouseX() {
+        return InputUtils.mouseX();
+    }
+
+    /**
+     * Get the current y position of the mouse.
+     */
+    public int getMouseY() {
+        return InputUtils.mouseY();
+    }
+
+    @Override
+    public void onMouseClicked(double mouseX, double mouseY, int mouseButton) {
+        super.onMouseClicked(mouseX, mouseY, mouseButton);
+    }
+
+    /**
+     * Retrieve the click status of the mouse. This method uses a boolean to store the status of the mouse, so it will only return true once per click. (very useful)
+     *
+     * @param ignoreBlockClicks whether to ignore the current click blocker.
+     */
+    public boolean isClicked(boolean ignoreBlockClicks) {
+        return mouseDown && !Mouse.isButtonDown(0) && (!blockClicks || ignoreBlockClicks);
+    }
+
+    /**
+     * Retrieve the click status of the mouse. This method uses a boolean to store the status of the mouse, so it will only return true once per click. (very useful)
+     */
+    public boolean isClicked() {
+        return isClicked(false);
+    }
+
+    /**
+     * Retrieve weather or not the mouse is currently down. Will constantly return true if its clicked. See {@link #isClicked()} for a method that only executes once per tick.
+     */
+    public boolean isMouseDown() {
+        return Mouse.isButtonDown(0);
+    }
+
+    /**
+     * Click blocking can be useful when you are drawing buttons for example over the top of other elements, so a click blocker can be used to ensure that the mouse doesn't click through things.
+     */
+    public void shouldBlockClicks(boolean state) {
+        blockClicks = state;
+    }
+
+    /**
+     * Click blocking can be useful when you are drawing buttons for example over the top of other elements, so a click blocker can be used to ensure that the mouse doesn't click through things.
+     */
+    public boolean isBlockingClicks() {
+        return blockClicks;
+    }
+}