Hi, i’m creating a coremod using the mixin library created by sponge, but I want to make it compatible also with base forge without spongeforge installed, so i’ve only downloaded the mixin library from github. I’ve made some modification following the documentation, but how to inizialize the mixins? now the mod is starting, but my modifications doesn’t runs.
Thanks
You need to create a coremod, and invoke MixinBootstrap.init()
I think it’s also possible by creating a tweaker too
Here are two mods that use mixins: https://github.com/elytra/MovingWorld and GitHub - ForgeEssentials/ForgeEssentials: Repository for ForgeEssentials 1.x
may be helpful to see how they’ve done it
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Thanks it worked!
I’ve also another problem: I want to overwrite a method of worldserver class, that use some instance fields:
@Mixin(value = WorldServer.class) public class MixinWorldServer extends WorldServer { ...
But this not working, because i can’t extend the target class. I need to make these fields public via accesstransformer or there is another way via mixin?
Thanks again
You need to extend World
You can get fields by using @Shadow on a field
for example @Shadow @Final private MinecraftServer mcServer;
See the Mixin wiki for details
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Thank you for your support, I’ve successfully implemented the abstract @Shadow methods, but i’ve some problems with the constructor: https://github.com/elytra/MovingWorld/blob/1.11/src/main/java/com/elytradev/movingworld/common/asm/mixin/core/world/MixinWorld.java here you are not specify any constructor, but i’m getting this error:
how did you create a class with no constructor?
Thanks again
That example from MovingWorld actually doesn’t extend World because it’s mixing into World (who’s super class is Object). Mixin ignores the constructor so it doesn’t matter what you put there as long as it compiles
Here is an example from spongecommon
https://github.com/SpongePowered/SpongeCommon/blob/bleeding/src/main/java/org/spongepowered/common/mixin/realtime/mixin/MixinWorldServer.java#L44-L47
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Yeah, that worked, now i’m able to run the mod and all modifications are working.
About running on a forge server, how can i compile that into a mod?
Because when i try to do gradle build it throw to me this exception:
[details=Exception]:deobfCompileDummyTask :deobfProvidedDummyTask :sourceApiJava :compileApiJava UP-TO-DATE :processApiResources UP-TO-DATE :apiClasses UP-TO-DATE :sourceMainJava :compileJava java.util.ServiceConfigurationError: org.spongepowered.tools.obfuscation.service.IObfuscationService: Provider org.spongepowered.tools.obfuscation.json.ObfuscationServiceJson not found at java.util.ServiceLoader.fail(ServiceLoader.java:239) at java.util.ServiceLoader.access$300(ServiceLoader.java:185) at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:372) at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404) at java.util.ServiceLoader$1.next(ServiceLoader.java:480) at org.spongepowered.tools.obfuscation.service.ObfuscationServices.initProviders(ObfuscationServices.java:82) at org.spongepowered.tools.obfuscation.ObfuscationManager.init(ObfuscationManager.java:81) at org.spongepowered.tools.obfuscation.AnnotatedMixins.<init>(AnnotatedMixins.java:147) at org.spongepowered.tools.obfuscation.AnnotatedMixins.getMixinsForEnvironment(AnnotatedMixins.java:587) at org.spongepowered.tools.obfuscation.MixinObfuscationProcessor.init(MixinObfuscationProcessor.java:57) at com.sun.tools.javac.processing.JavacProcessingEnvironment$ProcessorState.<init>(JavacProcessingEnvironment.java:500) at com.sun.tools.javac.processing.JavacProcessingEnvironment$DiscoveredProcessors$ProcessorStateIterator.next(JavacProcessingEnvironment.java:597) at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:690) at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91) at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035) at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176) at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170) at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:856) at com.sun.tools.javac.main.Main.compile(Main.java:523) at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129) at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138) at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:46) at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:33) at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.delegateAndHandleErrors(NormalizingJavaCompiler.java:104) at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:53) at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:38) at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:35) at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:25) at org.gradle.api.tasks.compile.JavaCompile.performCompilation(JavaCompile.java:163) at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:145) at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:93) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:245) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:232) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46) at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35) at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66) at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52) at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52) at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53) at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110) at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37) at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23) at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43) at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30) at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:153) at org.gradle.internal.Factories$1.create(Factories.java:22) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53) at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:150) at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32) at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98) at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63) at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92) at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83) at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:99) at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28) at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30) at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81) at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46) at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72) at org.gradle.util.Swapper.swap(Swapper.java:38) at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:40) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50) at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:237) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54) at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Note: SpongePowered MIXIN Annotation Processor Version=0.6.8 Note: ObfuscationServiceMCP supports type: "searge" Note: ObfuscationServiceMCP supports type: "notch" error: ServiceConfigurationError: org.spongepowered.tools.obfuscation.service.IObfuscationService: Provider org.spongepowered.tools.obfuscation.json.ObfuscationServiceJson not found[/details]
I’ve added the mixin library in this way to the build.gradle:
[details=build.gradle]... dependencies { // you may put jars on which you depend on in ./libs // or you may define them like so.. //compile "some.group:artifact:version:classifier" compile files("./libs/mixin-0.6.8-SNAPSHOT.jar") compile files("./libs/mixin-0.6.8-SNAPSHOT-processor.jar") compile files("./libs/mixin-0.6.8-SNAPSHOT-thin.jar") compile files("./libs/mixin-0.6.8-SNAPSHOT-sources.jar") ...[/details]
It need other dependency?
Another thing, there is a way to change fields attribute?
For example, if i have this class
public class Aaa { public List<String> mylist = new ArrayList()<>; }
There is a way for example in my MixinAaa to replace the arraylist with a linkedlist?
Thanks for your help
Up? Anyone know how to compile?
As far as I know, it’s not required to extend a class in order to create a mixin. See this project that I made some while back to remove the eula notification from the server. You need to
- Mark the mixin using the @Mixin annotation
- Add some attributes to your Manifest (seen here)
- Add a JSON file to the jar to provide the classpath to your mixins (here)
- If not already done, apply the Mixin gradle plugin
After that, mixins should be recognized and applied by the server.