package modern_chunk_detector.mixin; import net.minecraft.server.MinecraftServer; import org.spongepowered.asm.mixin.Mixin; import org.spongepowered.asm.mixin.injection.At; import org.spongepowered.asm.mixin.injection.Inject; import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; @Mixin(MinecraftServer.class) public class ExampleMixin { @Inject(at = @At("HEAD"), method = "loadWorld") private void init(CallbackInfo info) { // This code is injected into the start of MinecraftServer.loadWorld()V } }