From c33f961f819502623b79deda14c24eb52302db42 Mon Sep 17 00:00:00 2001
From: Sollace <sollacea@gmail.com>
Date: Tue, 13 Oct 2020 17:41:38 +0200
Subject: [PATCH] Swap the hud to the other side for people who play left
 handed

---
 .../unicopia/client/gui/ManaRingSlot.java     |  2 +-
 .../unicopia/client/gui/Slot.java             | 25 +++++++++++++++++--
 .../unicopia/client/gui/UHud.java             |  9 ++++++-
 3 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/minelittlepony/unicopia/client/gui/ManaRingSlot.java b/src/main/java/com/minelittlepony/unicopia/client/gui/ManaRingSlot.java
index 95bac4ab..671f72b1 100644
--- a/src/main/java/com/minelittlepony/unicopia/client/gui/ManaRingSlot.java
+++ b/src/main/java/com/minelittlepony/unicopia/client/gui/ManaRingSlot.java
@@ -20,7 +20,7 @@ class ManaRingSlot extends Slot {
     private static final double TWO_PI = Math.PI * 2;
 
     public ManaRingSlot(UHud uHud, AbilitySlot normalSlot, AbilitySlot backupSlot, int x, int y) {
-        super(uHud, normalSlot, backupSlot, x, y, 8, 49, 33, 43, 42);
+        super(uHud, normalSlot, backupSlot, x, y, 8, UHud.PRIMARY_SLOT_SIZE, 33, 43, 42);
         background(0, 5);
         foreground(0, 59);
     }
diff --git a/src/main/java/com/minelittlepony/unicopia/client/gui/Slot.java b/src/main/java/com/minelittlepony/unicopia/client/gui/Slot.java
index 94f5cfef..d1e7579f 100644
--- a/src/main/java/com/minelittlepony/unicopia/client/gui/Slot.java
+++ b/src/main/java/com/minelittlepony/unicopia/client/gui/Slot.java
@@ -62,9 +62,21 @@ class Slot {
         return this;
     }
 
+    int getX() {
+        if (uHud.xDirection < 0) {
+            return UHud.PRIMARY_SLOT_SIZE - size - x;
+        }
+
+        return x;
+    }
+
+    int getY() {
+        return y;
+    }
+
     void renderBackground(MatrixStack matrices, AbilityDispatcher abilities, boolean bSwap, float tickDelta) {
         matrices.push();
-        matrices.translate(x, y, 0);
+        matrices.translate(getX(), getY(), 0);
 
         float cooldown = abilities.getStat(bSwap ? bSlot : aSlot).getFillProgress();
 
@@ -101,7 +113,16 @@ class Slot {
         Text label = KeyBindingsHandler.INSTANCE.getBinding(aSlot).getBoundKeyLocalizedText();
 
         matrices.push();
-        matrices.translate(x + labelX, y + labelY, 0);
+
+        int x = getX();
+        if (uHud.xDirection > 0) {
+            x += labelX;
+        } else {
+            x += labelX - size/3;
+            x -= uHud.client.textRenderer.getWidth(label)/2;
+        }
+
+        matrices.translate(x, getY() + labelY, 0);
         matrices.scale(0.5F, 0.5F, 0.5F);
 
         UHud.drawTextWithShadow(matrices, uHud.font, label, 0, 0, 0xFFFFFF);
diff --git a/src/main/java/com/minelittlepony/unicopia/client/gui/UHud.java b/src/main/java/com/minelittlepony/unicopia/client/gui/UHud.java
index b79818ea..511f9de7 100644
--- a/src/main/java/com/minelittlepony/unicopia/client/gui/UHud.java
+++ b/src/main/java/com/minelittlepony/unicopia/client/gui/UHud.java
@@ -21,6 +21,7 @@ import net.minecraft.client.gui.hud.InGameHud;
 import net.minecraft.client.gui.screen.ingame.InventoryScreen;
 import net.minecraft.client.util.math.MatrixStack;
 import net.minecraft.text.Text;
+import net.minecraft.util.Arm;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.Util;
 
@@ -30,6 +31,8 @@ public class UHud extends DrawableHelper {
 
     public static final Identifier HUD_TEXTURE = new Identifier("unicopia", "textures/gui/hud.png");
 
+    public static final int PRIMARY_SLOT_SIZE = 49;
+
     public TextRenderer font;
 
     final MinecraftClient client = MinecraftClient.getInstance();
@@ -44,6 +47,8 @@ public class UHud extends DrawableHelper {
     private Text message;
     private int messageTime;
 
+    int xDirection;
+
     public void render(InGameHud hud, MatrixStack matrices, float tickDelta) {
 
         if (client.player == null || client.player.isSpectator()) {
@@ -52,11 +57,13 @@ public class UHud extends DrawableHelper {
 
         font = client.textRenderer;
 
+        xDirection = client.player.getMainArm() == Arm.LEFT ? -1 : 1;
+
         int scaledWidth = client.getWindow().getScaledWidth();
         int scaledHeight = client.getWindow().getScaledHeight();
 
         matrices.push();
-        matrices.translate(104 + (scaledWidth - 50) / 2, scaledHeight - 50, 0);
+        matrices.translate(((scaledWidth - 50) / 2) + (104 * xDirection), scaledHeight - 50, 0);
 
         Pony pony = Pony.of(client.player);
         AbilityDispatcher abilities = pony.getAbilities();