8c7d5b9d38
用户定向：在 python 层写 switch，调用不同 java 后端（而非一个文件里 switch）。
新增：
mcfold/backends/{__init__,base,gen_1_20,gen_1_21}.py 后端体系与分派
scaffold/java/gen_1_20/ 对 1.20.x client jar 编译
scaffold/java/gen_1_21/ 对 1.21.1 client jar 编译（✅ 实测编译通过）
scaffold/java/VERSION-DIFFS.md 实测差异全表
判据：DeltaTracker 类是否存在（1.21 引入，正是 render 签名变化的根源）
⇒ 比硬编码版本号稳
实测差异共 11 处（21 个检查点里 13 个跨世代完全一致）：
setLevel / GameRenderer.render / countRendered* / createPackRepository /
ResourceLocation 构造 / enableDataFixerOptimizations(移除) / User 构造 /
ChunkStatus 包路径 / ClientPacketListener 构造(参数个数语义都变) /
loadEffect(变 private)
为什么必须分后端：DeltaTracker 在 1.20.x jar 中不存在，
两代调用无法共存于一份源码（实测编译报 cannot find symbol）。
1.21.1 反混淆已验证（29MB named jar，DeltaTracker 3 处）
64 lines
5.7 KiB
Plaintext
64 lines
5.7 KiB
Plaintext
[17:51:20] [Datafixer Bootstrap/INFO]: 188 Datafixer optimizations took 108 milliseconds
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[17:51:21] [main/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
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[17:51:22] [main/ERROR]: Failed to verify authentication
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com.mojang.authlib.exceptions.InvalidCredentialsException: Status: 401
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at com.mojang.authlib.exceptions.MinecraftClientHttpException.toAuthenticationException(MinecraftClientHttpException.java:56) ~[authlib-4.0.43.jar:?]
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at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.fetchProperties(YggdrasilUserApiService.java:156) ~[authlib-4.0.43.jar:?]
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at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.<init>(YggdrasilUserApiService.java:55) ~[authlib-4.0.43.jar:?]
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at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.createUserApiService(YggdrasilAuthenticationService.java:124) ~[authlib-4.0.43.jar:?]
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at net.minecraft.client.Minecraft.createUserApiService(SourceFile:733) ~[client-named.jar:?]
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at net.minecraft.client.Minecraft.<init>(SourceFile:442) ~[client-named.jar:?]
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at McfoldRenderServer.boot(McfoldRenderServer.java:517) ~[classes/:?]
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at McfoldRenderServer.main(McfoldRenderServer.java:104) ~[classes/:?]
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Caused by: com.mojang.authlib.exceptions.MinecraftClientHttpException: Status: 401
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at com.mojang.authlib.minecraft.client.MinecraftClient.readInputStream(MinecraftClient.java:85) ~[authlib-4.0.43.jar:?]
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at com.mojang.authlib.minecraft.client.MinecraftClient.get(MinecraftClient.java:48) ~[authlib-4.0.43.jar:?]
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at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.fetchProperties(YggdrasilUserApiService.java:129) ~[authlib-4.0.43.jar:?]
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... 6 more
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[17:51:22] [main/INFO]: Setting user: mcfold_cam
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[17:51:22] [main/INFO]: Backend library: LWJGL version 3.3.1 build 7
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[17:51:22] [main/INFO]: [STDERR]: [LWJGL] [ThreadLocalUtil] Unsupported JNI version detected, this may result in a crash. Please inform LWJGL developers.
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[17:51:22] [main/WARN]: Attempted to end step for load_time_pre_window_ms before starting it
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[17:51:22] [main/INFO]: Reloading ResourceManager: vanilla
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[17:51:22] [Worker-Main-4/INFO]: Found unifont_all_no_pua-15.0.06.hex, loading
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[17:51:22] [main/INFO]: [STDERR]: [mcfold] Minecraft constructed
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[17:52:22] [main/INFO]: [STDERR]: [mcfold] TIMEOUT TextureManager
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[17:52:22] [main/WARN]: Missing sound for event: minecraft:item.goat_horn.play
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[17:52:22] [main/WARN]: Missing sound for event: minecraft:entity.goat.screaming.horn_break
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[17:52:22] [main/ERROR]: Error starting SoundSystem. Turning off sounds & music
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java.lang.IllegalStateException: Failed to open OpenAL device
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at com.mojang.blaze3d.audio.Library.openDeviceOrFallback(SourceFile:283) ~[client-named.jar:?]
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at com.mojang.blaze3d.audio.Library.init(SourceFile:153) ~[client-named.jar:?]
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at net.minecraft.client.sounds.SoundEngine.loadLibrary(SourceFile:116) ~[client-named.jar:?]
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at net.minecraft.client.sounds.SoundEngine.reload(SourceFile:106) ~[client-named.jar:?]
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at net.minecraft.client.sounds.SoundManager.apply(SourceFile:125) ~[client-named.jar:?]
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at net.minecraft.client.sounds.SoundManager.apply(SourceFile:40) ~[client-named.jar:?]
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at net.minecraft.server.packs.resources.SimplePreparableReloadListener.lambda$reload$1(SourceFile:13) ~[client-named.jar:?]
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at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:718) ~[?:?]
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at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[?:?]
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at java.util.concurrent.CompletableFuture.uniAcceptNow(CompletableFuture.java:754) ~[?:?]
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at java.util.concurrent.CompletableFuture.uniAcceptStage(CompletableFuture.java:735) ~[?:?]
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at java.util.concurrent.CompletableFuture.thenAcceptAsync(CompletableFuture.java:2223) ~[?:?]
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at net.minecraft.server.packs.resources.SimplePreparableReloadListener.reload(SourceFile:13) ~[client-named.jar:?]
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at McfoldRenderServer.reloadResources(McfoldRenderServer.java:588) ~[classes/:?]
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at McfoldRenderServer.boot(McfoldRenderServer.java:521) ~[classes/:?]
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at McfoldRenderServer.main(McfoldRenderServer.java:104) ~[classes/:?]
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[17:52:22] [main/INFO]: Found unifont_all_no_pua-15.0.06.hex, loading
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[17:52:23] [main/INFO]: Created: 1024x512x4 minecraft:textures/atlas/blocks.png-atlas
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[17:52:23] [main/INFO]: Created: 256x256x4 minecraft:textures/atlas/signs.png-atlas
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[17:52:23] [main/INFO]: Created: 512x512x4 minecraft:textures/atlas/shield_patterns.png-atlas
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[17:52:23] [main/INFO]: Created: 512x512x4 minecraft:textures/atlas/banner_patterns.png-atlas
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[17:52:23] [main/INFO]: Created: 1024x1024x4 minecraft:textures/atlas/armor_trims.png-atlas
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[17:52:23] [main/INFO]: Created: 128x64x4 minecraft:textures/atlas/decorated_pot.png-atlas
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[17:52:23] [main/INFO]: Created: 256x256x4 minecraft:textures/atlas/chest.png-atlas
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[17:52:23] [main/INFO]: Created: 512x256x4 minecraft:textures/atlas/shulker_boxes.png-atlas
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[17:52:23] [main/INFO]: Created: 512x256x4 minecraft:textures/atlas/beds.png-atlas
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[17:52:24] [main/WARN]: Shader rendertype_entity_translucent_emissive could not find sampler named Sampler2 in the specified shader program.
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[17:52:24] [main/INFO]: Created: 256x256x0 minecraft:textures/atlas/particles.png-atlas
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[17:52:24] [main/INFO]: Created: 256x256x0 minecraft:textures/atlas/paintings.png-atlas
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[17:52:24] [main/INFO]: Created: 128x128x0 minecraft:textures/atlas/mob_effects.png-atlas
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[17:52:24] [main/INFO]: [STDERR]: [mcfold] resources reloaded
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[17:52:24] [main/WARN]: Shader rendertype_entity_translucent_emissive could not find sampler named Sampler2 in the specified shader program.
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[17:52:24] [main/INFO]: [STDERR]: [mcfold] boot done
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[17:52:35] [main/WARN]: Shader invert could not find uniform named InSize in the specified shader program.
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