From bd5867a96f792f0eb32c1d249bb4bbc1d8338d14 Mon Sep 17 00:00:00 2001
From: Lulu13022002 <41980282+Lulu13022002@users.noreply.github.com>
Date: Tue, 4 Jun 2024 22:55:29 +0200
Subject: [PATCH] Handle alpha channel from potion_contents component (#10808)

---
 patches/api/0056-Fix-upstream-javadocs.patch  |  6 +-
 patches/server/0691-More-Projectile-API.patch | 75 +++++++++++++++++++
 2 files changed, 78 insertions(+), 3 deletions(-)

diff --git a/patches/api/0056-Fix-upstream-javadocs.patch b/patches/api/0056-Fix-upstream-javadocs.patch
index c71ea6a14f..fe6b5c7dfa 100644
--- a/patches/api/0056-Fix-upstream-javadocs.patch
+++ b/patches/api/0056-Fix-upstream-javadocs.patch
@@ -1571,7 +1571,7 @@ index a23d030d2204098be17d8b18021fd0bb79b4431b..f427334c6e875a13aa53052ac1b5a746
       * AttributeModifiers without a slot are active in any slot.<br>
       * If there are no attributes set for the given slot, an empty map
 diff --git a/src/main/java/org/bukkit/inventory/meta/LeatherArmorMeta.java b/src/main/java/org/bukkit/inventory/meta/LeatherArmorMeta.java
-index c1676991c3cc5f8d6e3f97d8cb356d6e2aa52809..1d61cc4ab36413fe3c1ecdf9824a5e18cb4bc148 100644
+index c1676991c3cc5f8d6e3f97d8cb356d6e2aa52809..c701d5fbc5fef503f18a3a46fa54c983bf96e895 100644
 --- a/src/main/java/org/bukkit/inventory/meta/LeatherArmorMeta.java
 +++ b/src/main/java/org/bukkit/inventory/meta/LeatherArmorMeta.java
 @@ -8,8 +8,9 @@ import org.jetbrains.annotations.Nullable;
@@ -1581,7 +1581,7 @@ index c1676991c3cc5f8d6e3f97d8cb356d6e2aa52809..1d61cc4ab36413fe3c1ecdf9824a5e18
 - * Material#LEATHER_CHESTPLATE}, {@link Material#LEATHER_HELMET}, or {@link
 - * Material#LEATHER_LEGGINGS}) that can be colored.
 + * Material#LEATHER_LEGGINGS}, {@link Material#LEATHER_CHESTPLATE}, {@link
-+ * Material#LEATHER_HELMET}, {@link Material#LEATHER_HORSE_ARMOR}, {@link
++ * Material#LEATHER_HELMET}, {@link Material#LEATHER_HORSE_ARMOR} or {@link
 + * Material#WOLF_ARMOR}) that can be colored.
   */
  public interface LeatherArmorMeta extends ItemMeta {
@@ -1592,7 +1592,7 @@ index c1676991c3cc5f8d6e3f97d8cb356d6e2aa52809..1d61cc4ab36413fe3c1ecdf9824a5e18
       * @return the color of the armor, never null
 +     * @apiNote The method yielding {@link ItemFactory#getDefaultLeatherColor()} is incorrect
 +     * for {@link Material#WOLF_ARMOR} as its default color differs. Generally, it is recommended to check
-+     * {@link #isDyed()} to determined if this leather armor is dyed than to compare this colour to the default.
++     * {@link #isDyed()} to determine if this leather armor is dyed than to compare this color to the default.
       */
      @NotNull
      Color getColor();
diff --git a/patches/server/0691-More-Projectile-API.patch b/patches/server/0691-More-Projectile-API.patch
index 4db060784d..372a2e1a93 100644
--- a/patches/server/0691-More-Projectile-API.patch
+++ b/patches/server/0691-More-Projectile-API.patch
@@ -13,6 +13,7 @@ public net.minecraft.world.entity.projectile.ShulkerBullet currentMoveDirection
 public net.minecraft.world.entity.projectile.ShulkerBullet flightSteps
 public net.minecraft.world.entity.projectile.AbstractArrow soundEvent
 public net.minecraft.world.entity.projectile.ThrownTrident dealtDamage
+public net.minecraft.world.entity.projectile.Arrow NO_EFFECT_COLOR
 public net.minecraft.world.entity.projectile.Projectile hasBeenShot
 public net.minecraft.world.entity.projectile.Projectile leftOwner
 public net.minecraft.world.entity.projectile.Projectile preOnHit(Lnet/minecraft/world/phys/HitResult;)V
@@ -231,6 +232,80 @@ index 98f46fadd60ea688fefa8d83dbd6fe9b61b6a96f..0cc1cdf91deb07ebb437ef5e61d149b2
 +    }
 +    // Paper end
  }
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftAreaEffectCloud.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftAreaEffectCloud.java
+index 81f5e1d866128af8fb2acc13aca715580fdf9886..88f2a9f310f30a08893f3fa68af13a54cf72fa7f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftAreaEffectCloud.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftAreaEffectCloud.java
+@@ -125,7 +125,7 @@ public class CraftAreaEffectCloud extends CraftEntity implements AreaEffectCloud
+ 
+     @Override
+     public Color getColor() {
+-        return Color.fromRGB(this.getHandle().potionContents.getColor());
++        return Color.fromRGB(this.getHandle().potionContents.getColor() & 0x00FFFFFF); // Paper - skip alpha channel
+     }
+ 
+     @Override
+@@ -143,7 +143,7 @@ public class CraftAreaEffectCloud extends CraftEntity implements AreaEffectCloud
+             this.removeCustomEffect(effect.getType());
+         }
+         this.getHandle().addEffect(CraftPotionUtil.fromBukkit(effect));
+-        this.getHandle().updateColor();
++        // this.getHandle().updateColor(); // Paper - already done above
+         return true;
+     }
+ 
+@@ -151,7 +151,7 @@ public class CraftAreaEffectCloud extends CraftEntity implements AreaEffectCloud
+     public void clearCustomEffects() {
+         PotionContents old = this.getHandle().potionContents;
+         this.getHandle().setPotionContents(new PotionContents(old.potion(), old.customColor(), List.of()));
+-        this.getHandle().updateColor();
++        // this.getHandle().updateColor(); // Paper - already done above
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java
+index 5232fbef0d014edd32a5d18d4a1500ab215313f5..071be344c3265a0cd52b31ffbb02ff7a70bdf231 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftArrow.java
+@@ -43,7 +43,7 @@ public class CraftArrow extends CraftAbstractArrow implements Arrow {
+             this.removeCustomEffect(effect.getType());
+         }
+         this.getHandle().addEffect(CraftPotionUtil.fromBukkit(effect));
+-        this.getHandle().updateColor();
++        // this.getHandle().updateColor(); // Paper - already done above
+         return true;
+     }
+ 
+@@ -51,7 +51,7 @@ public class CraftArrow extends CraftAbstractArrow implements Arrow {
+     public void clearCustomEffects() {
+         PotionContents old = this.getHandle().getPotionContents();
+         this.getHandle().setPotionContents(new PotionContents(old.potion(), old.customColor(), List.of()));
+-        this.getHandle().updateColor();
++        // this.getHandle().updateColor(); // Paper - already done above
+     }
+ 
+     @Override
+@@ -117,16 +117,17 @@ public class CraftArrow extends CraftAbstractArrow implements Arrow {
+ 
+     @Override
+     public void setColor(Color color) {
+-        int colorRGB = (color == null) ? -1 : color.asRGB();
++        int colorRGB = (color == null) ? net.minecraft.world.entity.projectile.Arrow.NO_EFFECT_COLOR : color.asARGB(); // Paper
+         PotionContents old = this.getHandle().getPotionContents();
+         this.getHandle().setPotionContents(new PotionContents(old.potion(), Optional.of(colorRGB), old.customEffects()));
+     }
+ 
+     @Override
+     public Color getColor() {
+-        if (this.getHandle().getColor() <= -1) {
++        int color = this.getHandle().getColor(); // Paper
++        if (color == net.minecraft.world.entity.projectile.Arrow.NO_EFFECT_COLOR) { // Paper
+             return null;
+         }
+-        return Color.fromRGB(this.getHandle().getColor());
++        return Color.fromARGB(color); // Paper
+     }
+ }
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java
 index 7ba6302ecb72fa6e523054e7e3223d79eedf6589..907904da7f89e8e5e5cfab80977f04af3fdf17c7 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntityTypes.java