From 9b92d8fb7ff17e9b5b68224494de049034406963 Mon Sep 17 00:00:00 2001
From: alemi <me@alemi.dev>
Date: Wed, 1 Mar 2023 18:16:19 +0100
Subject: feat: added Highlighter

---
 .../java/ftbsc/bscv/modules/hud/Highlighter.java   | 101 +++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 src/main/java/ftbsc/bscv/modules/hud/Highlighter.java

diff --git a/src/main/java/ftbsc/bscv/modules/hud/Highlighter.java b/src/main/java/ftbsc/bscv/modules/hud/Highlighter.java
new file mode 100644
index 0000000..35da3c4
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/modules/hud/Highlighter.java
@@ -0,0 +1,101 @@
+package ftbsc.bscv.modules.hud;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.mojang.blaze3d.systems.RenderSystem;
+
+import ftbsc.bscv.modules.AbstractModule;
+import ftbsc.bscv.tools.Setting;
+import net.minecraft.client.gui.screen.inventory.ContainerScreen;
+import net.minecraft.inventory.container.Slot;
+import net.minecraft.item.EnchantedBookItem;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.Items;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.ListNBT;
+import net.minecraftforge.client.event.GuiContainerEvent;
+import net.minecraftforge.common.ForgeConfigSpec;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.client.gui.GuiUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import ftbsc.bscv.api.ILoadable;
+import com.google.auto.service.AutoService;
+
+@AutoService(ILoadable.class)
+public class Highlighter extends AbstractModule {
+
+	public final ForgeConfigSpec.ConfigValue<String> query;
+	private Pattern pattern;
+
+	public Highlighter() {
+		super();
+
+		this.pattern = Pattern.compile("");
+		this.query = Setting.Str.builder()
+			.fallback("")
+			.name("query")
+			.comment("search query")
+			.callback(to -> this.pattern = Pattern.compile(to))
+			.build(this);
+	}
+
+	private List<String> enchantments(ItemStack stack) {
+		final ListNBT tags;
+		if (Items.ENCHANTED_BOOK.equals(stack.getItem())) {
+			tags = EnchantedBookItem.getEnchantments(stack); // special case to also search book enchants
+		} else {
+			tags = stack.getEnchantmentTags();
+		}
+
+		List<String> out = new ArrayList<>();
+		for (int i = 0; i < tags.size(); i++) {
+			CompoundNBT tag = tags.getCompound(i);
+			out.add(String.format("%s %s", tag.getString("id"), tag.getInt("lvl")));
+		}
+
+		return out;
+	}
+
+	private boolean matches(ItemStack stack) {
+		if (stack.isEmpty()) return false;
+
+		String displayName = stack.getDisplayName().getString();
+		if (this.pattern.matcher(displayName).find()) return true;
+
+		if (Items.ENCHANTED_BOOK.equals(stack.getItem()) || stack.isEnchanted()) {
+			for (String ench : this.enchantments(stack)) {
+				if (this.pattern.matcher(ench).find()) return true;
+			}
+		}
+
+		return false;
+	}
+
+	@SubscribeEvent
+	public void onGuiContainerDraw(GuiContainerEvent.DrawBackground event) {
+		MatrixStack matrix = event.getMatrixStack();
+		ContainerScreen<?> screen = event.getGuiContainer();
+
+		RenderSystem.enableDepthTest();
+		matrix.pushPose();
+		matrix.translate(screen.getGuiLeft(), screen.getGuiTop(), 0);
+
+		for (Slot slot : screen.getMenu().slots) {
+			ItemStack stack = slot.getItem();
+			if (this.matches(stack)) {
+				GuiUtils.drawGradientRect(
+					matrix.last().pose(), 0,
+					slot.x, slot.y, slot.x + 16, slot.y + 16,
+					// TODO de-hardcode these colors by creating our util!
+					-925194976,  // R218 G165 B 32 A200
+					-927090837   // R189 G183 B107 A200
+				);
+			}
+		}
+
+		matrix.popPose();
+	}
+}
-- 
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