Added proper alex model support to HDSkins. Skin servers should remember what the "model" parameter was when saving a skin and include it in their responses.

src/hdskins/java/com/voxelmodpack/hdskins/HDSkinManager.java

@@ -231,7 +231,7 @@ public final class HDSkinManager implements IResourceManagerReloadListener {
             return null;
 
         IImageBuffer buffer = new ImageBufferDownloadHD();
-        PreviewTexture skinTexture = new PreviewTexture(url.getUrl(), def, type == Type.SKIN ? new IImageBuffer() {
+        PreviewTexture skinTexture = new PreviewTexture(url.getMetadata("model"), url.getUrl(), def, type == Type.SKIN ? new IImageBuffer() {
             @Override
             @Nullable
             public BufferedImage parseUserSkin(BufferedImage image) {

src/hdskins/java/com/voxelmodpack/hdskins/PreviewTexture.java

@@ -10,8 +10,12 @@ public class PreviewTexture extends ThreadDownloadImageData {
 
     private boolean uploaded;
 
-    public PreviewTexture(String url, ResourceLocation fallbackTexture, @Nullable IImageBuffer imageBuffer) {
+    private String model;
+
+    public PreviewTexture(String model, String url, ResourceLocation fallbackTexture, @Nullable IImageBuffer imageBuffer) {
         super(null, url, fallbackTexture, imageBuffer);
+
+        this.model = model;
     }
 
     public boolean isTextureUploaded() {
@@ -23,4 +27,12 @@ public class PreviewTexture extends ThreadDownloadImageData {
         super.deleteGlTexture();
         this.uploaded = true;
     }
+
+    public boolean hasModel() {
+        return model != null;
+    }
+
+    public boolean usesThinArms() {
+        return "thin".equals(model);
+    }
 }

src/hdskins/java/com/voxelmodpack/hdskins/gui/EntityPlayerModel.java

@@ -16,6 +16,7 @@ import net.minecraft.client.resources.SkinManager;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.inventory.EntityEquipmentSlot;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumHand;
 import net.minecraft.util.EnumHandSide;
 import net.minecraft.util.ResourceLocation;
 
@@ -49,9 +50,10 @@ public class EntityPlayerModel extends EntityLivingBase {
     private DynamicTexture localElytraTexture;
     private TextureManager textureManager;
     public final GameProfile profile;
-    public boolean isSwinging = false;
+
     protected boolean remoteSkin = false;
     protected boolean hasLocalTexture = false;
+    protected boolean previewThinArms = false;
 
     public EntityPlayerModel(GameProfile profile) {
         super(null);
@@ -59,8 +61,8 @@ public class EntityPlayerModel extends EntityLivingBase {
         this.textureManager = Minecraft.getMinecraft().getTextureManager();
         this.remoteSkinResource = new ResourceLocation("skins/preview_" + this.profile.getName() + ".png");
         this.remoteElytraResource = new ResourceLocation("elytras/preview_" + this.profile.getName() + ".png");
-        this.localSkinResource = NO_SKIN;
+        this.localSkinResource = getBlankSkin();
-        this.localElytraResource = NO_ELYTRA;
+        this.localElytraResource = getBlankElytra();
         this.textureManager.deleteTexture(this.remoteSkinResource);
         this.textureManager.deleteTexture(this.remoteElytraResource);
     }
@@ -74,8 +76,8 @@ public class EntityPlayerModel extends EntityLivingBase {
             this.textureManager.deleteTexture(this.remoteElytraResource);
         }
 
-        this.remoteSkinTexture = HDSkinManager.getPreviewTexture(this.remoteSkinResource, this.profile, Type.SKIN, NO_SKIN, listener);
+        this.remoteSkinTexture = HDSkinManager.getPreviewTexture(this.remoteSkinResource, this.profile, Type.SKIN, getBlankSkin(), listener);
-        this.remoteElytraTexture = HDSkinManager.getPreviewTexture(this.remoteElytraResource, this.profile, Type.ELYTRA, NO_ELYTRA, null);
+        this.remoteElytraTexture = HDSkinManager.getPreviewTexture(this.remoteElytraResource, this.profile, Type.ELYTRA, getBlankElytra(), null);
 
     }
 
@@ -94,7 +96,7 @@ public class EntityPlayerModel extends EntityLivingBase {
                     bufferedImage = new ImageBufferDownloadHD().parseUserSkin(image);
                     assert bufferedImage != null;
                 } catch (IOException var4) {
-                    this.localSkinResource = NO_SKIN;
+                    this.localSkinResource = getBlankSkin();
                     var4.printStackTrace();
                     return;
                 }
@@ -113,7 +115,7 @@ public class EntityPlayerModel extends EntityLivingBase {
                 try {
                     bufferedImage = ImageIO.read(skinTextureFile);
                 } catch (IOException var4) {
-                    this.localElytraResource = NO_ELYTRA;
+                    this.localElytraResource = getBlankElytra();
                     var4.printStackTrace();
                     return;
                 }
@@ -125,6 +127,14 @@ public class EntityPlayerModel extends EntityLivingBase {
         }
     }
 
+    protected ResourceLocation getBlankSkin() {
+        return NO_SKIN;
+    }
+
+    protected ResourceLocation getBlankElytra() {
+        return NO_ELYTRA;
+    }
+
     public boolean isUsingLocalTexture() {
         return !this.remoteSkin && this.hasLocalTexture;
     }
@@ -137,13 +147,13 @@ public class EntityPlayerModel extends EntityLivingBase {
         if (this.localSkinTexture != null) {
             this.textureManager.deleteTexture(this.localSkinResource);
             this.localSkinTexture = null;
-            this.localSkinResource = NO_SKIN;
+            this.localSkinResource = getBlankSkin();
             this.hasLocalTexture = false;
         }
         if (this.localElytraTexture != null) {
             this.textureManager.deleteTexture(this.localElytraResource);
             this.localElytraTexture = null;
-            this.localElytraResource = NO_ELYTRA;
+            this.localElytraResource = getBlankElytra();
             this.hasLocalTexture = false;
         }
     }
@@ -157,21 +167,36 @@ public class EntityPlayerModel extends EntityLivingBase {
         return this.remoteSkin && this.remoteElytraTexture != null ? this.remoteElytraResource : localElytraResource;
     }
 
-    public void swingArm() {
+    public void setPreviewThinArms(boolean thinArms) {
-        if (!this.isSwinging || this.swingProgressInt >= 4 || this.swingProgressInt < 0) {
+        previewThinArms = thinArms;
+    }
+
+    public boolean usesThinSkin() {
+        if (isTextureSetupComplete() && remoteSkinTexture.hasModel()) {
+            return remoteSkinTexture.usesThinArms();
+        }
+
+        return previewThinArms;
+    }
+
+    @Override
+    public void swingArm(EnumHand hand) {
+        super.swingArm(hand);
+        if (!this.isSwingInProgress || this.swingProgressInt >= 4 || this.swingProgressInt < 0) {
             this.swingProgressInt = -1;
-            this.isSwinging = true;
+            this.isSwingInProgress = true;
+            this.swingingHand = hand;
         }
 
     }
 
     public void updateModel() {
         this.prevSwingProgress = this.swingProgress;
-        if (this.isSwinging) {
+        if (this.isSwingInProgress) {
             ++this.swingProgressInt;
             if (this.swingProgressInt >= 8) {
                 this.swingProgressInt = 0;
-                this.isSwinging = false;
+                this.isSwingInProgress = false;
             }
         } else {
             this.swingProgressInt = 0;

src/hdskins/java/com/voxelmodpack/hdskins/gui/GuiSkins.java

@@ -27,6 +27,7 @@ import net.minecraft.client.resources.I18n;
 import net.minecraft.init.Items;
 import net.minecraft.inventory.EntityEquipmentSlot;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumHand;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.Session;
 import net.minecraft.util.math.MathHelper;
@@ -63,6 +64,7 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
     private GuiButton btnClear;
     private GuiButton btnBack;
     private GuiButton btnModeSkin;
+    private GuiButton btnModeSkinnySkin;
     private GuiButton btnModeElytra;
 
     protected EntityPlayerModel localPlayer;
@@ -89,6 +91,7 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
     private static GuiSkins instance;
 
     private MinecraftProfileTexture.Type textureType = SKIN;
+    private boolean thinArmType = false;
 
     public GuiSkins() {
         Minecraft minecraft = Minecraft.getMinecraft();
@@ -181,12 +184,18 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
 
         ItemStack skin = new ItemStack(Items.LEATHER_LEGGINGS);
         Items.LEATHER_LEGGINGS.setColor(skin, 0x3c5dcb);
-        this.buttonList.add(this.btnModeElytra = new GuiItemStackButton(5, 2, 24, new ItemStack(Items.ELYTRA)));
         this.buttonList.add(this.btnModeSkin = new GuiItemStackButton(4, 2, 2, skin));
+        skin = new ItemStack(Items.LEATHER_LEGGINGS);
+        Items.LEATHER_LEGGINGS.setColor(skin, 0xfff500);
+        this.buttonList.add(this.btnModeSkinnySkin = new GuiItemStackButton(6, 2, 24, skin));
+        this.buttonList.add(this.btnModeElytra = new GuiItemStackButton(5, 2, 46, new ItemStack(Items.ELYTRA)));
 
         this.btnUpload.enabled = false;
         this.btnBrowse.enabled = !this.mc.isFullScreen();
-        (this.textureType == SKIN ? this.btnModeSkin : this.btnModeElytra).enabled = false;
+
+        this.btnModeSkin.enabled = this.thinArmType || this.textureType != SKIN;
+        this.btnModeSkinnySkin.enabled = !this.thinArmType || this.textureType != SKIN;
+        this.btnModeElytra.enabled = this.textureType == SKIN;
 
     }
 
@@ -282,15 +291,24 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
                     this.mc.displayGuiScreen(new GuiMainMenu());
                 }
 
-                if (guiButton.id == this.btnModeSkin.id || guiButton.id == this.btnModeElytra.id) {
+                if (guiButton.id == this.btnModeSkin.id || guiButton.id == this.btnModeElytra.id || guiButton.id == this.btnModeSkinnySkin.id) {
                     ItemStack stack;
                     if (guiButton.id == this.btnModeSkin.id) {
+                        this.thinArmType = false;
                         this.textureType = SKIN;
                         this.btnModeElytra.enabled = true;
+                        this.btnModeSkinnySkin.enabled = true;
+                        stack = ItemStack.EMPTY;
+                    } else if (guiButton.id == this.btnModeSkinnySkin.id) {
+                        this.thinArmType = true;
+                        this.textureType = SKIN;
+                        this.btnModeSkin.enabled = true;
+                        this.btnModeElytra.enabled = true;
                         stack = ItemStack.EMPTY;
                     } else {
                         this.textureType = ELYTRA;
                         this.btnModeSkin.enabled = true;
+                        this.btnModeSkinnySkin.enabled = true;
                         stack = new ItemStack(Items.ELYTRA);
                     }
                     guiButton.enabled = false;
@@ -301,6 +319,9 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
                     // put on or take off the elytra
                     this.localPlayer.setItemStackToSlot(EntityEquipmentSlot.CHEST, stack);
                     this.remotePlayer.setItemStackToSlot(EntityEquipmentSlot.CHEST, stack);
+
+                    this.localPlayer.setPreviewThinArms(thinArmType);
+                    this.remotePlayer.setPreviewThinArms(thinArmType);
                 }
 
             }
@@ -317,8 +338,8 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
             int bottom = this.height - 40;
             int mid = this.width / 2;
             if ((mouseX > 30 && mouseX < mid - 30 || mouseX > mid + 30 && mouseX < this.width - 30) && mouseY > top && mouseY < bottom) {
-                this.localPlayer.swingArm();
+                this.localPlayer.swingArm(EnumHand.MAIN_HAND);
-                this.remotePlayer.swingArm();
+                this.remotePlayer.swingArm(EnumHand.MAIN_HAND);
             }
 
         }
@@ -527,11 +548,13 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
             Gui.drawRect(40, this.height / 2 - 12, this.width / 2 - 40, this.height / 2 + 12, 0xB0000000);
             this.fontRenderer.drawStringWithShadow(this.skinMessage, (int) (xPos1 - opacity), this.height / 2 - 4, 0xffffff);
         }
-        if (this.btnModeSkin.isMouseOver() || this.btnModeElytra.isMouseOver()) {
+        if (this.btnModeSkin.isMouseOver() || this.btnModeElytra.isMouseOver() || this.btnModeSkinnySkin.isMouseOver()) {
             int y = Math.max(mouseY, 16);
             String text;
             if (this.btnModeSkin.isMouseOver()) {
                 text = "hdskins.mode.skin";
+            } else if (this.btnModeSkinnySkin.isMouseOver()) {
+                text = "hdskins.mode.skinny";
             } else {
                 text = "hdskins.mode.elytra";
             }
@@ -643,14 +666,14 @@ public class GuiSkins extends GuiScreen implements FutureCallback<SkinUploadResp
     private void clearUploadedSkin(Session session) {
         this.uploadingSkin = true;
         this.skinUploadMessage = I18n.format("hdskins.request");
-        Futures.addCallback(HDSkinManager.INSTANCE.getGatewayServer().uploadSkin(session, null, this.textureType), this);
+        Futures.addCallback(HDSkinManager.INSTANCE.getGatewayServer().uploadSkin(session, null, this.textureType, this.thinArmType), this);
     }
 
     private void uploadSkin(Session session, @Nullable File skinFile) {
         this.uploadingSkin = true;
         this.skinUploadMessage = I18n.format("hdskins.upload");
         Path path = skinFile == null ? null : skinFile.toPath();
-        Futures.addCallback(HDSkinManager.INSTANCE.getGatewayServer().uploadSkin(session, path, this.textureType), this);
+        Futures.addCallback(HDSkinManager.INSTANCE.getGatewayServer().uploadSkin(session, path, this.textureType, this.thinArmType), this);
     }
 
     private void setUploadError(@Nullable String error) {

src/hdskins/java/com/voxelmodpack/hdskins/gui/RenderPlayerModel.java

@@ -27,7 +27,7 @@ public class RenderPlayerModel<M extends EntityPlayerModel> extends RenderLiving
     protected final ResourceLocation TEXTURE_ELYTRA = new ResourceLocation("textures/entity/elytra.png");
 
     private static final ModelPlayer FAT = new ModelPlayer(0, false);
-    //private static final ModelPlayer THIN = new ModelPlayer(0, true);
+    private static final ModelPlayer THIN = new ModelPlayer(0, true);
 
     public RenderPlayerModel(RenderManager renderer) {
         super(renderer, FAT, 0.0F);
@@ -83,7 +83,7 @@ public class RenderPlayerModel<M extends EntityPlayerModel> extends RenderLiving
     }
 
     public ModelPlayer getEntityModel(M entity) {
-        return FAT;
+        return entity.usesThinSkin() ? THIN : FAT;
     }
 
     @Override

src/hdskins/java/com/voxelmodpack/hdskins/skins/LegacySkinServer.java

@@ -88,7 +88,7 @@ public class LegacySkinServer implements SkinServer {
     }
 
     @Override
-    public ListenableFuture<SkinUploadResponse> uploadSkin(Session session, @Nullable Path image, MinecraftProfileTexture.Type type) {
+    public ListenableFuture<SkinUploadResponse> uploadSkin(Session session, @Nullable Path image, MinecraftProfileTexture.Type type, boolean thinSkinType) {
 
         if (Strings.isNullOrEmpty(this.gateway))
             return Futures.immediateFailedFuture(new NullPointerException("gateway url is blank"));
@@ -96,27 +96,28 @@ public class LegacySkinServer implements SkinServer {
         return HDSkinManager.skinUploadExecutor.submit(() -> {
             verifyServerConnection(session, SERVER_ID);
 
-            Map<String, ?> data = image == null ? getClearData(session, type) : getUploadData(session, type, image);
+            Map<String, ?> data = image == null ? getClearData(session, type) : getUploadData(session, type, (thinSkinType ? "thin" : "default"), image);
             ThreadMultipartPostUpload upload = new ThreadMultipartPostUpload(this.gateway, data);
             String response = upload.uploadMultipart();
             return new SkinUploadResponse(response.equalsIgnoreCase("OK"), response);
         });
     }
 
-    private static Map<String, ?> getData(Session session, MinecraftProfileTexture.Type type, String param, Object val) {
+    private static Map<String, ?> getData(Session session, MinecraftProfileTexture.Type type, String model, String param, Object val) {
         return ImmutableMap.of(
                 "user", session.getUsername(),
                 "uuid", session.getPlayerID(),
                 "type", type.toString().toLowerCase(Locale.US),
+                "model", model,
                 param, val);
     }
 
     private static Map<String, ?> getClearData(Session session, MinecraftProfileTexture.Type type) {
-        return getData(session, type, "clear", "1");
+        return getData(session, type, "default", "clear", "1");
     }
 
-    private static Map<String, ?> getUploadData(Session session, MinecraftProfileTexture.Type type, Path skinFile) {
+    private static Map<String, ?> getUploadData(Session session, MinecraftProfileTexture.Type type, String model, Path skinFile) {
-        return getData(session, type, type.toString().toLowerCase(Locale.US), skinFile);
+        return getData(session, type, model, type.toString().toLowerCase(Locale.US), skinFile);
     }
 
     private static String getPath(String address, MinecraftProfileTexture.Type type, GameProfile profile) {

src/hdskins/java/com/voxelmodpack/hdskins/skins/SkinServer.java

@@ -20,7 +20,7 @@ public interface SkinServer {
 
     Optional<MinecraftProfileTexture> getPreviewTexture(MinecraftProfileTexture.Type type, GameProfile profile);
 
-    ListenableFuture<SkinUploadResponse> uploadSkin(Session session, @Nullable Path image, MinecraftProfileTexture.Type type);
+    ListenableFuture<SkinUploadResponse> uploadSkin(Session session, @Nullable Path image, MinecraftProfileTexture.Type type, boolean thinArmType);
 
     static SkinServer from(String server) {
         int i = server.indexOf(':');

src/hdskins/java/com/voxelmodpack/hdskins/skins/ValhallaSkinServer.java

@@ -32,7 +32,7 @@ public class ValhallaSkinServer implements SkinServer {
     }
 
     @Override
-    public ListenableFuture<SkinUploadResponse> uploadSkin(Session session, @Nullable Path image, MinecraftProfileTexture.Type type) {
+    public ListenableFuture<SkinUploadResponse> uploadSkin(Session session, @Nullable Path image, MinecraftProfileTexture.Type type, boolean thinArmType) {
         return null;
     }
 

src/hdskins/resources/assets/hdskins/lang/en_us.lang

@@ -17,6 +17,7 @@ hdskins.upload=Uploading skin please wait...
 hdskins.local=Local Skin
 hdskins.server=Server Skin
 
-hdskins.mode.skin=Skin
+hdskins.mode.skin=Skin (Steve)
+hdskins.mode.skinny=Skin (Alex)
 hdskins.mode.elytra=Elytra
 

src/main/java/com/minelittlepony/PonyManager.java

@@ -65,7 +65,14 @@ public class PonyManager implements IResourceManagerReloadListener, ISkinCacheCl
      * @param resource A texture resource
      */
     public Pony getPony(ResourceLocation resource, boolean slim) {
-        return poniesCache.computeIfAbsent(resource, res -> new Pony(res, slim));
+        Pony pony = poniesCache.computeIfAbsent(resource, res -> new Pony(res, slim));
+
+        if (pony.usesThinArms() != slim) {
+            pony = new Pony(resource, slim);
+            poniesCache.put(resource,  pony);
+        }
+
+        return pony;
     }
 
     /**

src/main/java/com/minelittlepony/hdskins/gui/EntityPonyModel.java

@@ -1,12 +1,8 @@
 package com.minelittlepony.hdskins.gui;
 
-import java.io.File;
-
 import com.mojang.authlib.GameProfile;
-import com.mojang.authlib.minecraft.MinecraftProfileTexture.Type;
 import com.voxelmodpack.hdskins.gui.EntityPlayerModel;
 
-import net.minecraft.util.EnumHand;
 import net.minecraft.util.ResourceLocation;
 
 /**
@@ -20,25 +16,8 @@ public class EntityPonyModel extends EntityPlayerModel {
         super(profile);
     }
 
-    public void setLocalTexture(File skinTextureFile, Type type) {
+    @Override
-        super.setLocalTexture(skinTextureFile, type);
+    protected ResourceLocation getBlankSkin() {
-    }
-
-    public ResourceLocation getSkinTexture() {
-        ResourceLocation skin = super.getSkinTexture();
-        if (skin == NO_SKIN) {
-            // We're a pony, might as well look like one.
         return NO_SKIN_PONY;
     }
-
-        return skin;
-    }
-
-    public void swingArm() {
-        super.swingArm();
-
-        // Fixes the preview model swinging the wrong arm.
-        // Who's maintaining HDSkins anyway?
-        swingingHand = EnumHand.MAIN_HAND;
-    }
 }

src/main/java/com/minelittlepony/hdskins/gui/RenderPonyModel.java

@@ -1,7 +1,6 @@
 package com.minelittlepony.hdskins.gui;
 
 import com.minelittlepony.MineLittlePony;
-import com.minelittlepony.PonyManager;
 import com.minelittlepony.model.ModelWrapper;
 import com.minelittlepony.model.components.PonyElytra;
 import com.minelittlepony.pony.data.Pony;
@@ -40,9 +39,7 @@ public class RenderPonyModel extends RenderPlayerModel<EntityPonyModel> {
             return super.getEntityModel(playermodel);
         }
 
-        // TODO: We can't find out whether to use thin arms just by the texture.
+        Pony thePony = MineLittlePony.getInstance().getManager().getPony(loc, playermodel.usesThinSkin());
-        //       Maybe a trigger pixel for thin arms? #FutureThoughts
-        Pony thePony = MineLittlePony.getInstance().getManager().getPony(loc, PonyManager.isSlimSkin(playermodel.profile.getId()));
 
         if (thePony.getRace(false).isHuman()) {
             return super.getEntityModel(playermodel);

src/main/java/com/minelittlepony/pony/data/Pony.java

@@ -136,6 +136,10 @@ public class Pony {
         return metadata.getRace().getEffectiveRace(MineLittlePony.getConfig().getEffectivePonyLevel(ignorePony));
     }
 
+    public boolean usesThinArms() {
+        return smallArms;
+    }
+
     public ResourceLocation getTexture() {
         return texture;
     }