Fix a new issue, refactor a function

Fix skin not being set after first load
Rename ISwitchableArmsModel check to comply with @unique name scheming

Signed-off-by: roadhog360 <[email protected]>

Author: Roadhog360

src/main/java/roadhog360/simpleskinbackport/client/ImageBufferDownloadPlayerSkin.java

@@ -1,12 +1,26 @@
 package roadhog360.simpleskinbackport.client;
 
+import com.mojang.authlib.minecraft.MinecraftProfileTexture;
 import net.minecraft.client.renderer.ImageBufferDownload;
+import net.minecraft.client.resources.SkinManager;
+import roadhog360.simpleskinbackport.core.Utils;
+import roadhog360.simpleskinbackport.ducks.INewModelData;
 
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.awt.image.DataBufferInt;
 
 public class ImageBufferDownloadPlayerSkin extends ImageBufferDownload {
+
+    private final MinecraftProfileTexture texture;
+    private final SkinManager.SkinAvailableCallback callback;
+
+    public ImageBufferDownloadPlayerSkin(MinecraftProfileTexture texture, SkinManager.SkinAvailableCallback callback) {
+        super();
+        this.texture = texture;
+        this.callback = callback;
+    }
+
     @Override
     public BufferedImage parseUserSkin(BufferedImage buffImg) {
         if (buffImg == null)
@@ -45,4 +59,13 @@ public BufferedImage parseUserSkin(BufferedImage buffImg) {
         setAreaTransparent(48, 48, 64, 64);
         return buffImg2;
     }
+
+    //This is temporary; Once I figure out how to inject where this is called in SkinManager.class I'll do that instead.
+    @Override
+    public void func_152634_a() {
+        super.func_152634_a();
+        if(callback instanceof INewModelData data) {
+            Utils.setSlimFromMetadata(texture, data);
+        }
+    }
 }

src/main/java/roadhog360/simpleskinbackport/core/ClientEventHandler.java

@@ -34,7 +34,7 @@ public void onRenderEntity(RenderLivingEvent.Pre event) {
     private void checkAndSetArmsState(Entity entity, Render render) {
         if(render instanceof RenderPlayer renderPlayer && renderPlayer.modelBipedMain instanceof ISwitchableArmsModel model
             && entity instanceof INewModelData player) {
-            model.setArmState(player.simpleSkinBackport$isSlim());
+            model.simpleSkinBackport$setSlim(player.simpleSkinBackport$isSlim());
         }
     }
 

src/main/java/roadhog360/simpleskinbackport/core/Utils.java

@@ -4,12 +4,17 @@
 import com.google.gson.Gson;
 import com.google.gson.JsonObject;
 import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.minecraft.MinecraftProfileTexture;
 import com.mojang.authlib.properties.Property;
+import net.minecraft.client.resources.SkinManager;
+import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.util.ResourceLocation;
+import roadhog360.simpleskinbackport.ducks.INewModelData;
 
 import java.nio.charset.StandardCharsets;
 import java.util.Base64;
 import java.util.Map;
+import java.util.Objects;
 import java.util.UUID;
 
 public class Utils {
@@ -78,6 +83,14 @@ public static Boolean getSlimFromGameProfile(GameProfile profile) {
         return null;
     }
 
+    public static void setSlimFromMetadata(MinecraftProfileTexture texture, INewModelData data) {
+        data.simpleSkinBackport$setSlim(Objects.equals(texture.getMetadata("model"), "slim"));
+    }
+
+    public static boolean isPlayer(MinecraftProfileTexture.Type type, SkinManager.SkinAvailableCallback callback) {
+        return type == MinecraftProfileTexture.Type.SKIN && callback instanceof EntityPlayer;
+    }
+
     public static String getCallerClassName() {
         StackTraceElement[] stElements = Thread.currentThread().getStackTrace();
         String callerClassName = null;

src/main/java/roadhog360/simpleskinbackport/ducks/ISwitchableArmsModel.java

@@ -1,5 +1,5 @@
 package roadhog360.simpleskinbackport.ducks;
 
 public interface ISwitchableArmsModel {
-    void setArmState(boolean slim);
+    void simpleSkinBackport$setSlim(boolean slim);
 }

src/main/java/roadhog360/simpleskinbackport/mixins/early/MixinEntityPlayer.java

@@ -9,7 +9,7 @@
 public class MixinEntityPlayer implements INewModelData {
 
     @Unique
-    private boolean simpleSkinBackport$slim;
+    private boolean simpleSkinBackport$slim = false;
 
     @Override
     public boolean simpleSkinBackport$isSlim() {

src/main/java/roadhog360/simpleskinbackport/mixins/early/MixinModelBiped.java

@@ -148,7 +148,7 @@ private void injectNewLimbs(float size, float p_i1149_2_, int texWidth, int texH
     }
 
     @Override
-    public void setArmState(boolean slim) {
+    public void simpleSkinBackport$setSlim(boolean slim) {
         if(simpleSkinBackport$isPlayerModel) {
             if (slim) {
                 bipedLeftArm = simpleSkinBackport$bipedLeftArmSlim;

src/main/java/roadhog360/simpleskinbackport/mixins/early/MixinSkinManager.java

@@ -6,55 +6,45 @@
 import com.mojang.authlib.minecraft.MinecraftProfileTexture;
 import net.minecraft.client.renderer.ImageBufferDownload;
 import net.minecraft.client.resources.SkinManager;
-import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.util.ResourceLocation;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 import roadhog360.simpleskinbackport.SimpleSkinBackport;
 import roadhog360.simpleskinbackport.client.ImageBufferDownloadPlayerSkin;
+import roadhog360.simpleskinbackport.core.Utils;
 import roadhog360.simpleskinbackport.ducks.INewModelData;
 
-import java.util.Objects;
-
 @Mixin(value = SkinManager.class, priority = 1100)
 public class MixinSkinManager {
     @WrapOperation(method = "func_152789_a", at = @At(value = "NEW", target = "(Ljava/lang/String;)Lnet/minecraft/util/ResourceLocation;"))
     private ResourceLocation changeDownloadLocation(String p_i1293_1_, Operation<ResourceLocation> original,
                                                     @Local(argsOnly = true) final MinecraftProfileTexture.Type p_152789_2_,
                                                     @Local(argsOnly = true) final SkinManager.SkinAvailableCallback p_152789_3_
                                                     ) {
-        if(simpleSkinBackport$isNewPlayerWithPlayerData(p_152789_2_, p_152789_3_)) {
+        if(Utils.isPlayer(p_152789_2_, p_152789_3_)) {
             return new ResourceLocation(SimpleSkinBackport.MODID, p_i1293_1_);
         }
         return original.call(p_i1293_1_);
     }
 
     @WrapOperation(method = "func_152789_a", at = @At(value = "NEW", target = "()Lnet/minecraft/client/renderer/ImageBufferDownload;"))
     private ImageBufferDownload changeDownloadBufferManager(Operation<ImageBufferDownload> original,
-                                                            @Local(argsOnly = true) final MinecraftProfileTexture.Type p_152789_2_,
+                                                            @Local(argsOnly = true) MinecraftProfileTexture p_152789_1_,
+                                                            @Local(argsOnly = true) MinecraftProfileTexture.Type p_152789_2_,
                                                             @Local(argsOnly = true) SkinManager.SkinAvailableCallback p_152789_3_) {
-        if(simpleSkinBackport$isNewPlayerWithPlayerData(p_152789_2_, p_152789_3_)) {
-            return new ImageBufferDownloadPlayerSkin();
+        if(Utils.isPlayer(p_152789_2_, p_152789_3_)) {
+            return new ImageBufferDownloadPlayerSkin(p_152789_1_, p_152789_3_);
         }
         return original.call();
     }
 
     @Inject(method = "func_152789_a",
-        at = @At(value = "INVOKE", target = "Lnet/minecraft/client/resources/SkinManager$SkinAvailableCallback;func_152121_a(Lcom/mojang/authlib/minecraft/MinecraftProfileTexture$Type;Lnet/minecraft/util/ResourceLocation;)V",
-        shift = At.Shift.AFTER))
+        at = @At(value = "TAIL", target = "Lnet/minecraft/client/resources/SkinManager$SkinAvailableCallback;func_152121_a(Lcom/mojang/authlib/minecraft/MinecraftProfileTexture$Type;Lnet/minecraft/util/ResourceLocation;)V"))
     private void injectCallbackSkinCheck(MinecraftProfileTexture p_152789_1_, MinecraftProfileTexture.Type p_152789_2_, SkinManager.SkinAvailableCallback p_152789_3_, CallbackInfoReturnable<ResourceLocation> cir) {
-        if(simpleSkinBackport$isNewPlayerWithPlayerData(p_152789_2_, p_152789_3_) && p_152789_3_ instanceof INewModelData playerData) {
-            if(Objects.equals(p_152789_1_.getMetadata("model"), "slim")) {
-                playerData.simpleSkinBackport$setSlim(true);
-            }
+        if(Utils.isPlayer(p_152789_2_, p_152789_3_) && p_152789_3_ instanceof INewModelData playerData) {
+            Utils.setSlimFromMetadata(p_152789_1_, playerData);
         }
     }
-
-    @Unique
-    private boolean simpleSkinBackport$isNewPlayerWithPlayerData(final MinecraftProfileTexture.Type type, SkinManager.SkinAvailableCallback callback) {
-        return type == MinecraftProfileTexture.Type.SKIN && callback instanceof EntityPlayer;
-    }
 }