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d0dcd7d251
Fixes incorrect spigot handling of the invulnerability damage reduction applied when an already invulnerable entity is damaged with a larger damage amount than the initial damage. Vanilla still damages entities even if invulnerable if the damage to be applied is larger than the previous damage taken. In that case, vanilla applies the difference between the previous damage taken and the proposed damage. Spigot's damage modifier API takes over the computation of damage reducing effects, however spigot invokes this handling with the initial damage before computing the difference to the previous damage amount. This leads to the reduction values to generally be larger than expected, as they are computed on the not-yet-reduced value. Spigot applies these reductions after calling the EntityDamageEvent and *then* subtracts the previous damage point, leading to the final damage amount being smaller than expected. This patch cannot simply call the EntityDamageEvent with the reduced damage, as that would lead to EntityDamageEvent#getDamage() returning the already reduced damage, which breaks its method contract. Instead, this patch makes use of the DamageModifier API, implementing the last-damage-reduction as a DamageModifier.
72 lines
3.6 KiB
Diff
72 lines
3.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Bjarne Koll <git@lynxplay.dev>
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Date: Sat, 6 Nov 2021 23:15:20 +0100
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Subject: [PATCH] Fix setPatternColor on tropical fish bucket meta
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Prior to this commit, the tropical fish bucket meta would set the body
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color to the previous metas pattern colour when updating the pattern
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colour.
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This commit hence simply fixes this by using the proper body colour
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value when updating the pattern color.
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java
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index 8169d08c1bccf7c9896bb083eba388f918fac6c9..a514fe98d3d2b65d2cfd029079c69189bcb99c01 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java
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@@ -128,7 +128,7 @@ class CraftMetaTropicalFishBucket extends CraftMetaItem implements TropicalFishB
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if (this.variant == null) {
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this.variant = 0;
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}
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- this.variant = CraftTropicalFish.getData(color, this.getPatternColor(), this.getPattern());
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+ this.variant = CraftTropicalFish.getData(color, this.getBodyColor(), this.getPattern()); // Paper - properly set tropical fish pattern color without mutating body color
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}
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@Override
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diff --git a/src/test/java/io/papermc/paper/inventory/CraftMetaTropicalFishBucketTest.java b/src/test/java/io/papermc/paper/inventory/CraftMetaTropicalFishBucketTest.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..68a557cedbffb41f27ba21096e2ae5eebbf13f5c
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--- /dev/null
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+++ b/src/test/java/io/papermc/paper/inventory/CraftMetaTropicalFishBucketTest.java
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@@ -0,0 +1,41 @@
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+package io.papermc.paper.inventory;
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+
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+import org.bukkit.DyeColor;
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+import org.bukkit.Material;
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+import org.bukkit.entity.TropicalFish;
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+import org.bukkit.inventory.ItemStack;
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+import org.bukkit.inventory.meta.TropicalFishBucketMeta;
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+import org.bukkit.support.environment.AllFeatures;
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+import org.junit.jupiter.api.Assertions;
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+import org.junit.jupiter.api.Test;
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+
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+@AllFeatures
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+public class CraftMetaTropicalFishBucketTest {
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+
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+ @Test
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+ public void testAllCombinations() {
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+ final var rawMeta = new ItemStack(Material.TROPICAL_FISH_BUCKET).getItemMeta();
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+ Assertions.assertTrue(rawMeta instanceof TropicalFishBucketMeta, "Meta was not a tropical fish bucket");
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+
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+ final var meta = (TropicalFishBucketMeta) rawMeta;
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+
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+ for (final var bodyColor : DyeColor.values()) {
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+ for (final var pattern : TropicalFish.Pattern.values()) {
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+ for (final var patternColor : DyeColor.values()) {
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+ meta.setBodyColor(bodyColor);
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+ Assertions.assertEquals(bodyColor, meta.getBodyColor(), "Body color did not match post body color!");
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+
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+ meta.setPattern(pattern);
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+ Assertions.assertEquals(pattern, meta.getPattern(), "Pattern did not match post pattern!");
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+ Assertions.assertEquals(bodyColor, meta.getBodyColor(), "Body color did not match post pattern!");
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+
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+ meta.setPatternColor(patternColor);
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+ Assertions.assertEquals(pattern, meta.getPattern(), "Pattern did not match post pattern color!");
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+ Assertions.assertEquals(bodyColor, meta.getBodyColor(), "Body color did not match post pattern color!");
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+ Assertions.assertEquals(patternColor, meta.getPatternColor(), "Pattern color did not match post pattern color!");
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+ }
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+ }
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+ }
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+ }
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+
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+}
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