From 0c76804cac81408c2190571ad1dd35955c5427f4 Mon Sep 17 00:00:00 2001
From: Sollace <sollacea@gmail.com>
Date: Mon, 17 May 2021 00:21:20 +0200
Subject: [PATCH] Added a trigger pixel display to the skin uploader

---
 .../minelittlepony/api/pony/IPonyData.java    |  10 +-
 .../api/pony/ITriggerPixelMapped.java         |  29 ----
 .../api/pony/TriggerPixelSet.java             |  24 ++++
 .../api/pony/TriggerPixelType.java            |  73 ++++++++++
 .../api/pony/TriggerPixelValue.java           |  43 ++++++
 .../minelittlepony/api/pony/meta/Gender.java  |   6 +-
 .../minelittlepony/api/pony/meta/Race.java    |   6 +-
 .../minelittlepony/api/pony/meta/Size.java    |   5 +-
 .../minelittlepony/api/pony/meta/Sizes.java   |   5 +-
 .../api/pony/meta/TailLength.java             |   7 +-
 .../{TriggerPixels.java => TriggerPixel.java} |  28 ++--
 .../api/pony/meta/Wearable.java               |  12 +-
 .../api/pony/network/MsgPonyData.java         |  33 +++++
 .../client/hdskins/PonyPreview.java           |  72 +++++++++-
 .../client/pony/NativePonyData.java           | 127 ++++++++++++++++++
 .../minelittlepony/client/pony/PonyData.java  |  38 +++---
 16 files changed, 436 insertions(+), 82 deletions(-)
 delete mode 100644 src/main/java/com/minelittlepony/api/pony/ITriggerPixelMapped.java
 create mode 100644 src/main/java/com/minelittlepony/api/pony/TriggerPixelSet.java
 create mode 100644 src/main/java/com/minelittlepony/api/pony/TriggerPixelType.java
 create mode 100644 src/main/java/com/minelittlepony/api/pony/TriggerPixelValue.java
 rename src/main/java/com/minelittlepony/api/pony/meta/{TriggerPixels.java => TriggerPixel.java} (65%)
 create mode 100644 src/main/java/com/minelittlepony/client/pony/NativePonyData.java

diff --git a/src/main/java/com/minelittlepony/api/pony/IPonyData.java b/src/main/java/com/minelittlepony/api/pony/IPonyData.java
index bf8ed9f8..2a19e5f2 100644
--- a/src/main/java/com/minelittlepony/api/pony/IPonyData.java
+++ b/src/main/java/com/minelittlepony/api/pony/IPonyData.java
@@ -7,6 +7,7 @@ import com.minelittlepony.api.pony.meta.TailLength;
 import com.minelittlepony.api.pony.meta.Wearable;
 import com.minelittlepony.common.util.animation.Interpolator;
 
+import java.util.Map;
 import java.util.UUID;
 
 /**
@@ -46,7 +47,9 @@ public interface IPonyData {
     /**
      * Returns true if and only if this metadata represents a pony that can cast magic.
      */
-    boolean hasMagic();
+    default boolean hasMagic() {
+        return hasHorn() && getGlowColor() != 0;
+    }
 
     /**
      * Returns an array of wearables that this pony is carrying.
@@ -62,4 +65,9 @@ public interface IPonyData {
      * Gets an interpolator for interpolating values.
      */
     Interpolator getInterpolator(UUID interpolatorId);
+
+    /**
+     * Gets the trigger pixel values as they appeared in the underlying image.
+     */
+    Map<String, TriggerPixelType<?>> getTriggerPixels();
 }
diff --git a/src/main/java/com/minelittlepony/api/pony/ITriggerPixelMapped.java b/src/main/java/com/minelittlepony/api/pony/ITriggerPixelMapped.java
deleted file mode 100644
index 7075b440..00000000
--- a/src/main/java/com/minelittlepony/api/pony/ITriggerPixelMapped.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.minelittlepony.api.pony;
-
-/**
- * Interface for enums that can be parsed from an image trigger pixel value.
- */
-public interface ITriggerPixelMapped<T extends Enum<T> & ITriggerPixelMapped<T>> {
-    /**
-     * Gets the pixel colour matching this enum value.
-     */
-    int getTriggerPixel();
-
-    /**
-     * Gets the enum value corresponding to the given enum type and pixel value.
-     * If none are found, the first parameter is returned as the default.
-     *
-     * @param type Return type and default value.
-     * @param pixelValue The pixel colour to search for.
-     */
-    @SuppressWarnings("unchecked")
-    static <T extends Enum<T> & ITriggerPixelMapped<T>> T getByTriggerPixel(T type, int pixelValue) {
-        for (T i : (T[])type.getClass().getEnumConstants()) {
-            if (i.getTriggerPixel() == pixelValue) {
-                return i;
-            }
-        }
-
-        return type;
-    }
-}
diff --git a/src/main/java/com/minelittlepony/api/pony/TriggerPixelSet.java b/src/main/java/com/minelittlepony/api/pony/TriggerPixelSet.java
new file mode 100644
index 00000000..93866175
--- /dev/null
+++ b/src/main/java/com/minelittlepony/api/pony/TriggerPixelSet.java
@@ -0,0 +1,24 @@
+package com.minelittlepony.api.pony;
+
+import java.util.List;
+
+public class TriggerPixelSet<T extends Enum<T> & TriggerPixelType<T>> extends TriggerPixelValue<boolean[]> {
+
+    private final T def;
+
+    public TriggerPixelSet(int color, T def, boolean[] value) {
+        super(color, value);
+        this.def = def;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public List<TriggerPixelType<T>> getOptions() {
+        return def.getOptions();
+    }
+
+    @Override
+    public boolean matches(Object o) {
+        return o.getClass() == def.getClass() && getValue()[((Enum<?>)o).ordinal()];
+    }
+}
diff --git a/src/main/java/com/minelittlepony/api/pony/TriggerPixelType.java b/src/main/java/com/minelittlepony/api/pony/TriggerPixelType.java
new file mode 100644
index 00000000..dafd1e04
--- /dev/null
+++ b/src/main/java/com/minelittlepony/api/pony/TriggerPixelType.java
@@ -0,0 +1,73 @@
+package com.minelittlepony.api.pony;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Interface for enums that can be parsed from an image trigger pixel value.
+ */
+public interface TriggerPixelType<T> {
+    /**
+     * Gets the pixel colour matching this enum value.
+     */
+    int getColorCode();
+
+    /**
+     * Gets the pixel colour matching this enum value, adjusted to fill all three channels.
+     */
+    default int getChannelAdjustedColorCode() {
+        return getColorCode();
+    }
+
+    /**
+     * Gets a string representation of this value.
+     */
+    default String name() {
+        return "[Numeric " + getHexValue() + "]";
+    }
+
+    default String getHexValue() {
+        return toHex(getColorCode());
+    }
+
+    /**
+     * Returns a list of possible values this trigger pixel can accept.
+     */
+    default <Option extends TriggerPixelType<T>> List<Option> getOptions() {
+        if (this instanceof Enum) {
+            return List.of(getClass().getEnumConstants());
+        }
+        return List.of();
+    }
+
+    default boolean matches(Object o) {
+        return equals(o);
+    }
+
+    /**
+     * Gets the enum value corresponding to the given enum type and pixel value.
+     * If none are found, the first parameter is returned as the default.
+     *
+     * @param type Return type and default value.
+     * @param pixelValue The pixel colour to search for.
+     */
+    @SuppressWarnings("unchecked")
+    static <T extends TriggerPixelType<T>> T getByTriggerPixel(T type, int pixelValue) {
+        return (T)type.getOptions().stream()
+                .filter(i -> i.getColorCode() == pixelValue)
+                .findFirst()
+                .orElse(type);
+    }
+
+    static TriggerPixelType<?> of(int color) {
+        return () -> color;
+    }
+
+    static String toHex(int color) {
+        String v = Integer.toHexString(color).toUpperCase();
+        while (v.length() < 6) {
+            v = "0" + v;
+        }
+        return "#" + v;
+    }
+}
diff --git a/src/main/java/com/minelittlepony/api/pony/TriggerPixelValue.java b/src/main/java/com/minelittlepony/api/pony/TriggerPixelValue.java
new file mode 100644
index 00000000..3083c9ed
--- /dev/null
+++ b/src/main/java/com/minelittlepony/api/pony/TriggerPixelValue.java
@@ -0,0 +1,43 @@
+package com.minelittlepony.api.pony;
+
+import java.util.List;
+import java.util.Objects;
+
+public class TriggerPixelValue<T> implements TriggerPixelType<T> {
+
+    private final int color;
+    private final T value;
+
+    public TriggerPixelValue(int color, T value) {
+        this.color = color;
+        this.value = value;
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public String name() {
+        return value instanceof TriggerPixelType ? ((TriggerPixelType<T>)value).name() : TriggerPixelType.super.name();
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public <Option extends TriggerPixelType<T>> List<Option> getOptions() {
+        return value instanceof TriggerPixelType ? ((TriggerPixelType<T>)value).getOptions() : TriggerPixelType.super.getOptions();
+    }
+
+    public T getValue() {
+        return value;
+    }
+
+    @Override
+    public int getColorCode() {
+        return color;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        return super.equals(o)
+            || (o instanceof TriggerPixelValue && Objects.equals(((TriggerPixelValue<?>)o).getValue(), getValue()))
+            || Objects.equals(o, getValue());
+    }
+}
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/Gender.java b/src/main/java/com/minelittlepony/api/pony/meta/Gender.java
index a769d671..964bc554 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/Gender.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/Gender.java
@@ -1,8 +1,8 @@
 package com.minelittlepony.api.pony.meta;
 
-import com.minelittlepony.api.pony.ITriggerPixelMapped;
+import com.minelittlepony.api.pony.TriggerPixelType;
 
-public enum Gender implements ITriggerPixelMapped<Gender> {
+public enum Gender implements TriggerPixelType<Gender> {
     MARE(0),
     STALLION(0xffffff),
     ABOMONATION(0x888888);
@@ -14,7 +14,7 @@ public enum Gender implements ITriggerPixelMapped<Gender> {
     }
 
     @Override
-    public int getTriggerPixel() {
+    public int getColorCode() {
         return triggerValue;
     }
 
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/Race.java b/src/main/java/com/minelittlepony/api/pony/meta/Race.java
index dde33c10..317a61d0 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/Race.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/Race.java
@@ -1,10 +1,10 @@
 package com.minelittlepony.api.pony.meta;
 
-import com.minelittlepony.api.pony.ITriggerPixelMapped;
+import com.minelittlepony.api.pony.TriggerPixelType;
 
 import javax.annotation.Nonnull;
 
-public enum Race implements ITriggerPixelMapped<Race> {
+public enum Race implements TriggerPixelType<Race> {
 
     HUMAN       (0x000000, false, false),
     EARTH       (0xf9b131, false, false),
@@ -93,7 +93,7 @@ public enum Race implements ITriggerPixelMapped<Race> {
     }
 
     @Override
-    public int getTriggerPixel() {
+    public int getColorCode() {
         return triggerPixel;
     }
 }
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/Size.java b/src/main/java/com/minelittlepony/api/pony/meta/Size.java
index 773d6109..15b983d8 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/Size.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/Size.java
@@ -1,5 +1,7 @@
 package com.minelittlepony.api.pony.meta;
 
+import com.minelittlepony.api.pony.TriggerPixelType;
+
 /**
  * Represents the different model sizes that are possible.
  *
@@ -7,8 +9,7 @@ package com.minelittlepony.api.pony.meta;
  * This interface exists for servers so they can work with this information even though they might not have access to the client config.
  *
  */
-public interface Size {
-
+public interface Size extends TriggerPixelType<Size> {
     /**
      * The Enum index of this size. May be used on the client to convert to an instance of Sizes or use {@link Sizes#of}
      *
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/Sizes.java b/src/main/java/com/minelittlepony/api/pony/meta/Sizes.java
index 6a85191c..60f194be 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/Sizes.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/Sizes.java
@@ -1,6 +1,5 @@
 package com.minelittlepony.api.pony.meta;
 
-import com.minelittlepony.api.pony.ITriggerPixelMapped;
 import com.minelittlepony.client.MineLittlePony;
 
 /**
@@ -10,7 +9,7 @@ import com.minelittlepony.client.MineLittlePony;
  *
  * For spooky things at a distance, use {@link Size} instead.
  */
-public enum Sizes implements ITriggerPixelMapped<Sizes>, Size {
+public enum Sizes implements Size {
     TALL    (0x534b76, 0.45f, 1.1F,  1.15F),
     BULKY   (0xce3254, 0.5f,  1,     1.05F),
     LANKY   (0x3254ce, 0.45F, 0.85F, 0.9F),
@@ -61,7 +60,7 @@ public enum Sizes implements ITriggerPixelMapped<Sizes>, Size {
     }
 
     @Override
-    public int getTriggerPixel() {
+    public int getColorCode() {
         return triggerValue;
     }
 
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/TailLength.java b/src/main/java/com/minelittlepony/api/pony/meta/TailLength.java
index 3cdfd8cd..44c7bede 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/TailLength.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/TailLength.java
@@ -1,9 +1,8 @@
 package com.minelittlepony.api.pony.meta;
 
-import com.minelittlepony.api.pony.ITriggerPixelMapped;
-
-public enum TailLength implements ITriggerPixelMapped<TailLength> {
+import com.minelittlepony.api.pony.TriggerPixelType;
 
+public enum TailLength implements TriggerPixelType<TailLength> {
     STUB            (0x425844),
     QUARTER         (0xd19fe4),
     HALF            (0x534b76),
@@ -17,7 +16,7 @@ public enum TailLength implements ITriggerPixelMapped<TailLength> {
     }
 
     @Override
-    public int getTriggerPixel() {
+    public int getColorCode() {
         return triggerValue;
     }
 }
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/TriggerPixels.java b/src/main/java/com/minelittlepony/api/pony/meta/TriggerPixel.java
similarity index 65%
rename from src/main/java/com/minelittlepony/api/pony/meta/TriggerPixels.java
rename to src/main/java/com/minelittlepony/api/pony/meta/TriggerPixel.java
index 06437b75..edafdbce 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/TriggerPixels.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/TriggerPixel.java
@@ -2,7 +2,9 @@ package com.minelittlepony.api.pony.meta;
 
 import net.minecraft.client.texture.NativeImage;
 
-import com.minelittlepony.api.pony.ITriggerPixelMapped;
+import com.minelittlepony.api.pony.TriggerPixelSet;
+import com.minelittlepony.api.pony.TriggerPixelType;
+import com.minelittlepony.api.pony.TriggerPixelValue;
 import com.minelittlepony.common.util.Color;
 
 /**
@@ -10,7 +12,7 @@ import com.minelittlepony.common.util.Color;
  *
  */
 @SuppressWarnings("unchecked")
-public enum TriggerPixels {
+public enum TriggerPixel {
     RACE(Race.HUMAN, Channel.ALL, 0, 0),
     TAIL(TailLength.FULL, Channel.ALL, 1, 0),
     GENDER(Gender.MARE, Channel.ALL, 2, 0),
@@ -23,9 +25,9 @@ public enum TriggerPixels {
 
     private Channel channel;
 
-    ITriggerPixelMapped<?> def;
+    TriggerPixelType<?> def;
 
-    TriggerPixels(ITriggerPixelMapped<?> def, Channel channel, int x, int y) {
+    TriggerPixel(TriggerPixelType<?> def, Channel channel, int x, int y) {
         this.def = def;
         this.channel = channel;
         this.x = x;
@@ -46,33 +48,35 @@ public enum TriggerPixels {
      *
      * @param image Image to read
      */
-    public <T extends Enum<T> & ITriggerPixelMapped<T>> T readValue(NativeImage image) {
+    public <T extends TriggerPixelType<T>> TriggerPixelValue<T> readValue(NativeImage image) {
+        int color = readColor(image);
+
         if (Channel.ALPHA.readValue(x, y, image) < 255) {
-            return (T)def;
+            return new TriggerPixelValue<>(color, (T)def);
         }
 
-        return ITriggerPixelMapped.getByTriggerPixel((T)def, readColor(image));
+        return new TriggerPixelValue<>(color, TriggerPixelType.getByTriggerPixel((T)def, color));
     }
 
-    public <T extends Enum<T> & ITriggerPixelMapped<T>> boolean[] readFlags(NativeImage image) {
+    public <T extends Enum<T> & TriggerPixelType<T>> TriggerPixelSet<T> readFlags(NativeImage image) {
         boolean[] out = new boolean[def.getClass().getEnumConstants().length];
         readFlags(out, image);
-        return out;
+        return new TriggerPixelSet<>(readColor(image), (T)def, out);
     }
 
-    public <T extends Enum<T> & ITriggerPixelMapped<T>> void readFlags(boolean[] out, NativeImage image) {
+    public <T extends Enum<T> & TriggerPixelType<T>> void readFlags(boolean[] out, NativeImage image) {
         readFlag(out, Channel.RED, image);
         readFlag(out, Channel.GREEN, image);
         readFlag(out, Channel.BLUE, image);
     }
 
-    private <T extends Enum<T> & ITriggerPixelMapped<T>> void readFlag(boolean[] out, Channel channel, NativeImage image) {
+    private <T extends Enum<T> & TriggerPixelType<T>> void readFlag(boolean[] out, Channel channel, NativeImage image) {
 
         if (Channel.ALPHA.readValue(x, y, image) < 255) {
             return;
         }
 
-        T value = ITriggerPixelMapped.getByTriggerPixel((T)def, channel.readValue(x, y, image));
+        T value = TriggerPixelType.getByTriggerPixel((T)def, channel.readValue(x, y, image));
 
         out[value.ordinal()] |= value != def;
     }
diff --git a/src/main/java/com/minelittlepony/api/pony/meta/Wearable.java b/src/main/java/com/minelittlepony/api/pony/meta/Wearable.java
index 0199f078..7784f521 100644
--- a/src/main/java/com/minelittlepony/api/pony/meta/Wearable.java
+++ b/src/main/java/com/minelittlepony/api/pony/meta/Wearable.java
@@ -1,11 +1,12 @@
 package com.minelittlepony.api.pony.meta;
 
-import com.minelittlepony.api.pony.ITriggerPixelMapped;
+import com.minelittlepony.api.pony.TriggerPixelType;
+import com.minelittlepony.common.util.Color;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public enum Wearable implements ITriggerPixelMapped<Wearable> {
+public enum Wearable implements TriggerPixelType<Wearable> {
     NONE        (0x00),
     MUFFIN      (0x32),
     HAT         (0x64),
@@ -20,10 +21,15 @@ public enum Wearable implements ITriggerPixelMapped<Wearable> {
     }
 
     @Override
-    public int getTriggerPixel() {
+    public int getColorCode() {
         return triggerValue;
     }
 
+    @Override
+    public int getChannelAdjustedColorCode() {
+        return triggerValue == 0 ? 0 : Color.argbToHex(255, triggerValue, triggerValue, triggerValue);
+    }
+
     public static boolean[] flags(Wearable[] wears) {
         boolean[] flags = new boolean[values().length];
         for (int i = 0; i < wears.length; i++) {
diff --git a/src/main/java/com/minelittlepony/api/pony/network/MsgPonyData.java b/src/main/java/com/minelittlepony/api/pony/network/MsgPonyData.java
index 44901f0a..a8b89e11 100644
--- a/src/main/java/com/minelittlepony/api/pony/network/MsgPonyData.java
+++ b/src/main/java/com/minelittlepony/api/pony/network/MsgPonyData.java
@@ -1,8 +1,11 @@
 package com.minelittlepony.api.pony.network;
 
 import net.minecraft.network.PacketByteBuf;
+import net.minecraft.util.Lazy;
+import net.minecraft.util.Util;
 
 import com.minelittlepony.api.pony.IPonyData;
+import com.minelittlepony.api.pony.TriggerPixelType;
 import com.minelittlepony.api.pony.meta.Gender;
 import com.minelittlepony.api.pony.meta.Race;
 import com.minelittlepony.api.pony.meta.Size;
@@ -10,6 +13,8 @@ import com.minelittlepony.api.pony.meta.TailLength;
 import com.minelittlepony.api.pony.meta.Wearable;
 import com.minelittlepony.common.util.animation.Interpolator;
 
+import java.util.Map;
+import java.util.TreeMap;
 import java.util.UUID;
 
 public class MsgPonyData implements IPonyData {
@@ -24,8 +29,19 @@ public class MsgPonyData implements IPonyData {
 
     private final boolean noSkin;
 
+    private final int wearableColor;
     private final boolean[] wearables;
 
+    private final Lazy<Map<String, TriggerPixelType<?>>> triggerPixels = new Lazy<>(() -> Util.make(new TreeMap<>(), this::initTriggerPixels));
+    private void initTriggerPixels(Map<String, TriggerPixelType<?>> map) {
+        map.put("race", race);
+        map.put("tail", tailLength);
+        map.put("gender", gender);
+        map.put("size", size);
+        map.put("magic", TriggerPixelType.of(glowColor));
+        map.put("gear", TriggerPixelType.of(wearableColor));
+    }
+
     public MsgPonyData(PacketByteBuf buffer) {
         race = Race.values()[buffer.readInt()];
         tailLength = TailLength.values()[buffer.readInt()];
@@ -41,6 +57,7 @@ public class MsgPonyData implements IPonyData {
             gear[i] = all[buffer.readInt()];
         }
         wearables = Wearable.flags(gear);
+        wearableColor = buffer.readInt();
     }
 
     public MsgPonyData(IPonyData data, boolean noSkin) {
@@ -52,6 +69,7 @@ public class MsgPonyData implements IPonyData {
         hasHorn = data.hasHorn();
         hasMagic = data.hasMagic();
         wearables = Wearable.flags(data.getGear());
+        wearableColor = data.getTriggerPixels().get("gear").getColorCode();
         this.noSkin = noSkin;
     }
 
@@ -70,6 +88,7 @@ public class MsgPonyData implements IPonyData {
         for (int i = 0; i < gear.length; i++) {
             buffer.writeInt(gear[i].ordinal());
         }
+        buffer.writeInt(wearableColor);
     }
 
     public boolean isNoSkin() {
@@ -126,6 +145,11 @@ public class MsgPonyData implements IPonyData {
         return Interpolator.linear(interpolatorId);
     }
 
+    @Override
+    public Map<String, TriggerPixelType<?>> getTriggerPixels() {
+        return triggerPixels.get();
+    }
+
     private static final class MsgSize implements Size {
 
         private final int ordinal;
@@ -134,6 +158,7 @@ public class MsgPonyData implements IPonyData {
         private final float scale;
         private final float eyeHeight;
         private final float eyeDistance;
+        private final int triggerPixel;
 
         MsgSize(Size size) {
             ordinal = size.ordinal();
@@ -142,6 +167,7 @@ public class MsgPonyData implements IPonyData {
             scale = size.getScaleFactor();
             eyeHeight = size.getEyeHeightFactor();
             eyeDistance = size.getEyeDistanceFactor();
+            triggerPixel = size.getColorCode();
         }
 
         MsgSize(PacketByteBuf buffer) {
@@ -151,6 +177,7 @@ public class MsgPonyData implements IPonyData {
             scale = buffer.readFloat();
             eyeHeight = buffer.readFloat();
             eyeDistance = buffer.readFloat();
+            triggerPixel = buffer.readInt();
         }
 
         public void toBuffer(PacketByteBuf buffer) {
@@ -160,6 +187,7 @@ public class MsgPonyData implements IPonyData {
             buffer.writeFloat(scale);
             buffer.writeFloat(eyeHeight);
             buffer.writeFloat(eyeDistance);
+            buffer.writeFloat(triggerPixel);
         }
 
         @Override
@@ -196,5 +224,10 @@ public class MsgPonyData implements IPonyData {
         public String toString() {
             return name;
         }
+
+        @Override
+        public int getColorCode() {
+            return triggerPixel;
+        }
     }
 }
diff --git a/src/main/java/com/minelittlepony/client/hdskins/PonyPreview.java b/src/main/java/com/minelittlepony/client/hdskins/PonyPreview.java
index f8ad27c0..8f30dd5d 100644
--- a/src/main/java/com/minelittlepony/client/hdskins/PonyPreview.java
+++ b/src/main/java/com/minelittlepony/client/hdskins/PonyPreview.java
@@ -1,11 +1,20 @@
 package com.minelittlepony.client.hdskins;
 
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.text.LiteralText;
+import net.minecraft.text.Text;
 import net.minecraft.util.Identifier;
 
+import com.minelittlepony.api.pony.IPonyData;
+import com.minelittlepony.api.pony.TriggerPixelType;
+import com.minelittlepony.client.MineLittlePony;
 import com.minelittlepony.hdskins.client.dummy.DummyPlayer;
 import com.minelittlepony.hdskins.client.dummy.PlayerPreview;
 import com.minelittlepony.hdskins.profile.SkinType;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 class PonyPreview extends PlayerPreview {
 
     public static final Identifier NO_SKIN_STEVE_PONY = new Identifier("minelittlepony", "textures/mob/noskin.png");
@@ -47,9 +56,70 @@ class PonyPreview extends PlayerPreview {
         return remotePony;
     }
 
-
     @Override
     public DummyPlayer getLocal() {
         return localPony;
     }
+
+    @Override
+    public void renderWorldAndPlayer(DummyPlayer thePlayer,
+            int frameLeft, int frameRight, int frameBottom, int frameTop,
+            float xPos, float yPos, int horizon, int mouseX, int mouseY, int ticks, float partialTick, float scale,
+            MatrixStack matrices) {
+        super.renderWorldAndPlayer(thePlayer, frameLeft, frameRight, frameBottom, frameTop, xPos, yPos, horizon, mouseX, mouseY, ticks, partialTick, scale, matrices);
+
+        IPonyData data = MineLittlePony.getInstance().getManager().getPony(thePlayer).getMetadata();
+        int[] index = new int[1];
+        data.getTriggerPixels().forEach((key, value) -> {
+            drawLegendBlock(matrices, index[0]++, frameLeft, frameTop, mouseX, mouseY, key, value);
+        });
+    }
+
+    private void drawLegendBlock(MatrixStack matrices, int index, int x, int y, int mouseX, int mouseY, String key, TriggerPixelType<?> value) {
+        int size = 10;
+        int yPos = y + index * size + 20;
+        fill(matrices,
+                x,        yPos,
+                x + size, yPos + size,
+                0xFF003333
+        );
+        fill(matrices,
+                x + 1,        yPos + 1,
+                x - 1 + size, yPos - 1 + size,
+                value.getColorCode() | 0xFF000000
+        );
+
+        char symbol = value.name().charAt(0);
+        if (symbol == '[') {
+            symbol = key.charAt(0);
+        }
+
+        minecraft.textRenderer.drawWithShadow(matrices,
+               Text.of(String.valueOf(symbol).toUpperCase()),
+               x + 2,
+               yPos + 1,
+               0xFFFFFFFF
+        );
+
+        if (mouseX > x && mouseX < (x + size) && mouseY > yPos && mouseY < (yPos + size)) {
+
+            List<Text> lines = value.getOptions().stream().map(option -> {
+                boolean selected = value.matches(option);
+                return new LiteralText((selected ? "* " : "  ") + option.name()).styled(s -> {
+                    int color = option.getChannelAdjustedColorCode();
+                    return (color == 0 ? s : s.withColor(color)).withItalic(selected);
+                });
+            }).collect(Collectors.toList());
+
+            lines.add(0, Text.of(key.toUpperCase() + ": " + value.getHexValue()));
+            if (lines.size() == 1) {
+                lines.add(new LiteralText(value.name()).styled(s -> {
+                    int color = value.getChannelAdjustedColorCode();
+                    return color == 0 ? s : s.withColor(value.getColorCode());
+                }));
+            }
+
+            minecraft.currentScreen.renderTooltip(matrices, lines, mouseX, mouseY);
+        }
+    }
 }
diff --git a/src/main/java/com/minelittlepony/client/pony/NativePonyData.java b/src/main/java/com/minelittlepony/client/pony/NativePonyData.java
new file mode 100644
index 00000000..5026014a
--- /dev/null
+++ b/src/main/java/com/minelittlepony/client/pony/NativePonyData.java
@@ -0,0 +1,127 @@
+package com.minelittlepony.client.pony;
+
+import net.minecraft.client.texture.NativeImage;
+
+import com.google.common.base.MoreObjects;
+import com.minelittlepony.api.pony.IPonyData;
+import com.minelittlepony.api.pony.TriggerPixelSet;
+import com.minelittlepony.api.pony.TriggerPixelType;
+import com.minelittlepony.api.pony.TriggerPixelValue;
+import com.minelittlepony.api.pony.meta.Gender;
+import com.minelittlepony.api.pony.meta.Race;
+import com.minelittlepony.api.pony.meta.Size;
+import com.minelittlepony.api.pony.meta.Sizes;
+import com.minelittlepony.api.pony.meta.TailLength;
+import com.minelittlepony.api.pony.meta.TriggerPixel;
+import com.minelittlepony.api.pony.meta.Wearable;
+import com.minelittlepony.client.MineLittlePony;
+import com.minelittlepony.common.util.animation.Interpolator;
+
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.UUID;
+
+import javax.annotation.concurrent.Immutable;
+
+/**
+ * Implementation for IPonyData.
+ */
+@Immutable
+class NativePonyData implements IPonyData {
+    private final TriggerPixelValue<Race> race;
+    private final TriggerPixelValue<TailLength> tailSize;
+    private final TriggerPixelValue<Gender> gender;
+    private final TriggerPixelValue<Size> size;
+    private final int glowColor;
+
+    private final TriggerPixelSet<Wearable> wearables;
+
+    private final Map<String, TriggerPixelType<?>> attributes = new TreeMap<>();
+
+    NativePonyData(NativeImage image) {
+        race = TriggerPixel.RACE.readValue(image);
+        tailSize = TriggerPixel.TAIL.readValue(image);
+        size = TriggerPixel.SIZE.readValue(image);
+        gender = TriggerPixel.GENDER.readValue(image);
+        glowColor = TriggerPixel.GLOW.readColor(image);
+        wearables = TriggerPixel.WEARABLES.readFlags(image);
+
+        attributes.put("race", race);
+        attributes.put("tail", tailSize);
+        attributes.put("gender", gender);
+        attributes.put("size", size);
+        attributes.put("magic", TriggerPixelType.of(glowColor));
+        attributes.put("gear", wearables);
+    }
+
+    @Override
+    public Race getRace() {
+        return race.getValue();
+    }
+
+    @Override
+    public TailLength getTail() {
+        return tailSize.getValue();
+    }
+
+    @Override
+    public Gender getGender() {
+        return gender.getValue();
+    }
+
+    @Override
+    public Sizes getSize() {
+        Sizes sz = MineLittlePony.getInstance().getConfig().sizeOverride.get();
+
+        if (sz != Sizes.UNSET) {
+            return sz;
+        }
+
+        if (size.getValue() == Sizes.UNSET || !MineLittlePony.getInstance().getConfig().sizes.get()) {
+            return Sizes.NORMAL;
+        }
+
+        return (Sizes)size.getValue();
+    }
+
+    @Override
+    public int getGlowColor() {
+        return glowColor;
+    }
+
+    @Override
+    public boolean hasHorn() {
+        return getRace() != null && Pony.getEffectiveRace(getRace(), false).hasHorn();
+    }
+
+    @Override
+    public Wearable[] getGear() {
+        return Wearable.flags(wearables.getValue());
+    }
+
+    @Override
+    public boolean isWearing(Wearable wearable) {
+        return wearables.matches(wearable);
+    }
+
+    @Override
+    public Interpolator getInterpolator(UUID interpolatorId) {
+        return Interpolator.linear(interpolatorId);
+    }
+
+    public Map<String, TriggerPixelType<?>> getTriggerPixels() {
+        return attributes;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("race", race.getValue())
+                .add("tailSize", tailSize.getValue())
+                .add("gender", gender.getValue())
+                .add("size", size.getValue())
+                .add("wearables", getGear())
+                .add("glowColor", TriggerPixelType.toHex(glowColor))
+                .toString();
+    }
+}
diff --git a/src/main/java/com/minelittlepony/client/pony/PonyData.java b/src/main/java/com/minelittlepony/client/pony/PonyData.java
index 7f9514a6..1c11b7ec 100644
--- a/src/main/java/com/minelittlepony/client/pony/PonyData.java
+++ b/src/main/java/com/minelittlepony/client/pony/PonyData.java
@@ -1,18 +1,16 @@
 package com.minelittlepony.client.pony;
 
 import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.texture.NativeImage;
 import net.minecraft.resource.Resource;
 import net.minecraft.util.Identifier;
-
 import com.google.common.base.MoreObjects;
 import com.google.gson.annotations.Expose;
 import com.minelittlepony.api.pony.IPonyData;
+import com.minelittlepony.api.pony.TriggerPixelType;
 import com.minelittlepony.api.pony.meta.Gender;
 import com.minelittlepony.api.pony.meta.Race;
 import com.minelittlepony.api.pony.meta.Sizes;
 import com.minelittlepony.api.pony.meta.TailLength;
-import com.minelittlepony.api.pony.meta.TriggerPixels;
 import com.minelittlepony.api.pony.meta.Wearable;
 import com.minelittlepony.client.MineLittlePony;
 import com.minelittlepony.client.util.render.NativeUtil;
@@ -20,6 +18,8 @@ import com.minelittlepony.common.util.animation.Interpolator;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.util.Map;
+import java.util.TreeMap;
 import java.util.UUID;
 
 import javax.annotation.Nullable;
@@ -27,7 +27,6 @@ import javax.annotation.concurrent.Immutable;
 
 /**
  * Implementation for IPonyData.
- *
  */
 @Immutable
 public class PonyData implements IPonyData {
@@ -58,7 +57,7 @@ public class PonyData implements IPonyData {
         }
 
         try {
-            return NativeUtil.parseImage(identifier, PonyData::new);
+            return NativeUtil.parseImage(identifier, NativePonyData::new);
         } catch (IllegalStateException e) {
             MineLittlePony.logger.fatal("Unable to read {} metadata", identifier, e);
             return NULL;
@@ -83,24 +82,22 @@ public class PonyData implements IPonyData {
     @Expose
     private final boolean[] wearables;
 
+    private final Map<String, TriggerPixelType<?>> attributes = new TreeMap<>();
+
     public PonyData(Race race) {
         this.race = race;
         tailSize = TailLength.FULL;
         gender = Gender.MARE;
         size = Sizes.NORMAL;
         glowColor = 0x4444aa;
-
         wearables = new boolean[Wearable.values().length];
-    }
 
-    private PonyData(NativeImage image) {
-        race = TriggerPixels.RACE.readValue(image);
-        tailSize = TriggerPixels.TAIL.readValue(image);
-        size = TriggerPixels.SIZE.readValue(image);
-        gender = TriggerPixels.GENDER.readValue(image);
-        glowColor = TriggerPixels.GLOW.readColor(image);
-
-        wearables = TriggerPixels.WEARABLES.readFlags(image);
+        attributes.put("race", race);
+        attributes.put("tail", tailSize);
+        attributes.put("gender", gender);
+        attributes.put("size", size);
+        attributes.put("magic", TriggerPixelType.of(glowColor));
+        attributes.put("gear", TriggerPixelType.of(0));
     }
 
     @Override
@@ -143,11 +140,6 @@ public class PonyData implements IPonyData {
         return getRace() != null && Pony.getEffectiveRace(getRace(), false).hasHorn();
     }
 
-    @Override
-    public boolean hasMagic() {
-        return hasHorn() && getGlowColor() != 0;
-    }
-
     @Override
     public Wearable[] getGear() {
         return Wearable.flags(wearables);
@@ -163,6 +155,10 @@ public class PonyData implements IPonyData {
         return Interpolator.linear(interpolatorId);
     }
 
+    public Map<String, TriggerPixelType<?>> getTriggerPixels() {
+        return attributes;
+    }
+
     @Override
     public String toString() {
         return MoreObjects.toStringHelper(this)
@@ -171,7 +167,7 @@ public class PonyData implements IPonyData {
                 .add("gender", gender)
                 .add("size", size)
                 .add("wearables", getGear())
-                .add("glowColor", "#" + Integer.toHexString(glowColor))
+                .add("glowColor", TriggerPixelType.toHex(glowColor))
                 .toString();
     }
 }