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feat: better chat patch, still not optional

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əlemi 2023-03-06 02:18:24 +01:00
parent dd9b4bb539
commit 62df0cf4ba
Signed by: alemi
GPG key ID: A4895B84D311642C
1 changed files with 21 additions and 10 deletions
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src/main/java/ftbsc/bscv/patches/ChatPatch.java
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@ -3,29 +3,40 @@ package ftbsc.bscv.patches;
import ftbsc.lll.processor.annotations.Injector; import ftbsc.lll.processor.annotations.Injector;
import ftbsc.lll.processor.annotations.Patch; import ftbsc.lll.processor.annotations.Patch;
import ftbsc.lll.processor.annotations.Target; import ftbsc.lll.processor.annotations.Target;
import net.minecraft.client.gui.NewChatGui; import ftbsc.lll.tools.InsnSequence;
import ftbsc.lll.tools.PatternMatcher;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.screen.Screen;
import org.objectweb.asm.Opcodes; import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.*; import org.objectweb.asm.tree.*;
public class ChatPatch { public class ChatPatch {
@Patch(value = NewChatGui.class, reason = "add hook to prevent chat from being cleared") @Patch(value = Minecraft.class, reason = "add hook to prevent chat from being cleared")
public abstract static class ChatClearInterceptor implements Opcodes { public abstract static class ChatClearInterceptor implements Opcodes {
/* // TODO this should be optional
* 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 @Target
abstract void clearMessages(boolean clearSent); abstract void setScreen(Screen screen);
@Injector @Injector
public void inject(ClassNode clazz, MethodNode main) { public void inject(ClassNode clazz, MethodNode main) {
main.instructions.insert(new InsnNode(RETURN)); InsnSequence match = PatternMatcher.builder()
.opcodes(ALOAD, GETFIELD, INVOKEVIRTUAL, ICONST_1, INVOKEVIRTUAL)
.ignoreLineNumbers()
.ignoreLabels()
.ignoreFrames()
.build()
.find(main);
LabelNode skip = new LabelNode();
JumpInsnNode jump = new JumpInsnNode(GOTO, skip);
main.instructions.insertBefore(match.getFirst(), jump);
main.instructions.insert(match.getLast(), skip);
} }
} }