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4f7a858bd6
c2d29a73 PlayerElytraBoostEvent (BillyGalbreath)
* pull/1248/head:
PlayerElytraBoostEvent
Also merged paper config into parent
109 Zeilen
4.5 KiB
Diff
109 Zeilen
4.5 KiB
Diff
From 2c64129f6d08bbf3d89edebe4c9c5c0ae61849b3 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Fri, 15 Jun 2018 00:30:32 -0400
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Subject: [PATCH] Configurable Alternative LootPool Luck Formula
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Rewrites the Vanilla luck application formula so that luck can be
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applied to items that do not have any quality defined.
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See: https://luckformula.emc.gs for data and details
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-----------
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The rough summary is:
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My goal was that in a pool, when luck was applied, the pool
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rebalances so the percentages for bigger items is
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lowered and smaller items is boosted.
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Do this by boosting and then reducing the weight value,
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so that larger numbers are penalized more than smaller numbers.
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resulting in a larger reduction of entries for more common
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items than the reduction on small weights,
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giving smaller weights more of a chance
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-----------
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This work kind of obsoletes quality, but quality would be useful
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for 2 items with same weight that you want luck to impact
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in varying directions.
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Fishing still falls into that as the weights are closer, so luck
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will invalidate junk more.
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This change will result in some major changes to fishing formulas.
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-----------
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I would love to see this change in Vanilla, so Mojang please pull :)
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 03846919f..5a17ce3d2 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -295,4 +295,12 @@ public class PaperConfig {
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"such as inventories, experience points, advancements and the like will not be saved when they log out.");
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}
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}
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+
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+ public static boolean useAlternativeLuckFormula = false;
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+ private static void useAlternativeLuckFormula() {
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+ useAlternativeLuckFormula = getBoolean("settings.use-alternative-luck-formula", false);
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+ if (useAlternativeLuckFormula) {
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+ Bukkit.getLogger().log(Level.INFO, "Using Aikar's Alternative Luck Formula to apply Luck attribute to all loot pool calculations. See https://luckformula.emc.gs");
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+ }
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/LotoSelectorEntry.java b/src/main/java/net/minecraft/server/LotoSelectorEntry.java
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index add618866..9f8e17b9d 100644
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--- a/src/main/java/net/minecraft/server/LotoSelectorEntry.java
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+++ b/src/main/java/net/minecraft/server/LotoSelectorEntry.java
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@@ -14,8 +14,8 @@ import java.util.Random;
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public abstract class LotoSelectorEntry {
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- protected final int c;
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- protected final int d;
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+ protected final int c; public int getWeight() { return c; } // Paper - OBFHELPER
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+ protected final int d; public int getQuality() { return d; } // Paper - OBFHELPER
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protected final LootItemCondition[] e;
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protected LotoSelectorEntry(int i, int j, LootItemCondition[] alootitemcondition) {
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@@ -25,8 +25,34 @@ public abstract class LotoSelectorEntry {
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}
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public int a(float f) {
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- return Math.max(MathHelper.d((float) this.c + (float) this.d * f), 0);
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+ // Paper start - Offer an alternative loot formula to refactor how luck bonus applies
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+ // SEE: https://luckformula.emc.gs for details and data
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+ if (lastLuck != null && lastLuck == f) {
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+ return lastWeight;
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+ }
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+ // This is vanilla
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+ float qualityModifer = (float) this.getQuality() * f;
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+ double baseWeight = (this.getWeight() + qualityModifer);
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+ if (com.destroystokyo.paper.PaperConfig.useAlternativeLuckFormula) {
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+ // Random boost to avoid losing precision in the final int cast on return
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+ final int weightBoost = 100;
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+ baseWeight *= weightBoost;
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+ // If we have vanilla 1, bump that down to 0 so nothing is is impacted
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+ // vanilla 3 = 300, 200 basis = impact 2%
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+ // =($B2*(($B2-100)/100/100))
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+ double impacted = baseWeight * ((baseWeight - weightBoost) / weightBoost / 100);
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+ // =($B$7/100)
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+ float luckModifier = Math.min(100, f * 10) / 100;
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+ // =B2 - (C2 *($B$7/100))
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+ baseWeight = Math.ceil(baseWeight - (impacted * luckModifier));
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+ }
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+ lastLuck = f;
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+ lastWeight = (int) Math.max(0, Math.floor(baseWeight));
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+ return lastWeight;
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}
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+ private Float lastLuck = null;
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+ private int lastWeight = 0;
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+ // Paper end
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public abstract void a(Collection<ItemStack> collection, Random random, LootTableInfo loottableinfo);
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--
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2.18.0
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