From dd9b4bb539326c949f4452547239d3c1c02442cb Mon Sep 17 00:00:00 2001
From: alemi <me@alemi.dev>
Date: Sat, 4 Mar 2023 04:22:39 +0100
Subject: [PATCH] feat: jank way to prevent chat clearing

---
 .../java/ftbsc/bscv/patches/ChatPatch.java    | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 src/main/java/ftbsc/bscv/patches/ChatPatch.java

diff --git a/src/main/java/ftbsc/bscv/patches/ChatPatch.java b/src/main/java/ftbsc/bscv/patches/ChatPatch.java
new file mode 100644
index 0000000..b8bc887
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/patches/ChatPatch.java
@@ -0,0 +1,32 @@
+package ftbsc.bscv.patches;
+
+import ftbsc.lll.processor.annotations.Injector;
+import ftbsc.lll.processor.annotations.Patch;
+import ftbsc.lll.processor.annotations.Target;
+import net.minecraft.client.gui.NewChatGui;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.*;
+
+
+public class ChatPatch {
+
+	@Patch(value = NewChatGui.class, reason = "add hook to prevent chat from being cleared")
+	public abstract static class ChatClearInterceptor implements Opcodes {
+
+		/*
+		 * TODO this patch is pretty bad because it prevents everyone from clearing the chat history.
+		 *
+		 * A better (but more complex) approach would be to patch in Minecraft.setScreen() and prevent clearing 
+		 *  chat history upon getting into main menu / multiplayer menu
+		 */
+
+		@Target
+		abstract void clearMessages(boolean clearSent);
+
+		@Injector
+		public void inject(ClassNode clazz, MethodNode main) {
+			main.instructions.insert(new InsnNode(RETURN));
+		}
+	}
+
+}