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package ftbsc.bscv.patches;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.AbstractInsnNode;
import org.objectweb.asm.tree.ClassNode;
import org.objectweb.asm.tree.JumpInsnNode;
import org.objectweb.asm.tree.LabelNode;
import org.objectweb.asm.tree.MethodNode;
import ftbsc.lll.processor.annotations.Injector;
import ftbsc.lll.processor.annotations.Patch;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.tools.PatternMatcher;
import net.minecraft.client.entity.player.ClientPlayerEntity;
@Patch(value = ClientPlayerEntity.class, reason = "prevent minecraft from force closing guis when entering portals")
public abstract class PortalGuiPatch implements Opcodes {
@Target
abstract void handleNetherPortalClient();
@Injector
public void inject(ClassNode clazz, MethodNode main) {
LabelNode skip = new LabelNode();
AbstractInsnNode found = PatternMatcher.builder()
.opcodes(ALOAD, GETFIELD, IFEQ)
.ignoreFrames()
.ignoreLabels()
.ignoreLineNumbers()
.build()
.find(main)
.getLast();
AbstractInsnNode after = PatternMatcher.builder()
.opcodes(GETFIELD, ACONST_NULL, CHECKCAST, INVOKEVIRTUAL)
.ignoreFrames()
.ignoreLabels()
.ignoreLineNumbers()
.build()
.find(main)
.getLast();
main.instructions.insert(found, new JumpInsnNode(GOTO, skip));
main.instructions.insert(after, skip);
}
}
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