Purpur/patches/server/0058-Implement-elytra-settings.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 25 Jul 2019 18:07:37 -0500
Subject: [PATCH] Implement elytra settings


diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 8829e613e1c307e9a40b30a797cada500971453d..d711bef21fba8e32ae99a0a52992e609e4841734 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3772,7 +3772,17 @@ public abstract class LivingEntity extends Entity implements Attackable {
                     }).toList();
                     EquipmentSlot enumitemslot = (EquipmentSlot) Util.getRandom(list, this.random);
 
-                    this.getItemBySlot(enumitemslot).hurtAndBreak(1, this, enumitemslot);
+                    // Purpur start
+                    int damage = level().purpurConfig.elytraDamagePerSecond;
+                    if (level().purpurConfig.elytraDamageMultiplyBySpeed > 0) {
+                        double speed = getDeltaMovement().lengthSqr();
+                        if (speed > level().purpurConfig.elytraDamageMultiplyBySpeed) {
+                            damage *= (int) speed;
+                        }
+                    }
+
+                    this.getItemBySlot(enumitemslot).hurtAndBreak(damage, this, enumitemslot);
+                    // Purpur end
                 }
 
                 this.gameEvent(GameEvent.ELYTRA_GLIDE);
@@ -3781,7 +3791,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
 
     }
 
-    protected boolean canGlide() {
+    public boolean canGlide() { // Purpur
         if (!this.onGround() && !this.isPassenger() && !this.hasEffect(MobEffects.LEVITATION)) {
             Iterator iterator = EquipmentSlot.VALUES.iterator();
 
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 8ccc760e84aec8aabbe5b8112b332cee13849b23..fee0ffaaf94c484c9272d3b5743b90bb70e0d08d 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1664,7 +1664,7 @@ public abstract class Player extends LivingEntity {
     }
 
     @Override
-    protected boolean canGlide() {
+    public boolean canGlide() { // Purpur
         return !this.abilities.flying && super.canGlide();
     }
 
diff --git a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
index 29a048a9b09166838616ac7ba1d31625d56b0bca..184e6d9bf393188fc1f1c7acd545b4ac6d31f6a4 100644
--- a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
+++ b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
@@ -66,6 +66,18 @@ public class FireworkRocketItem extends Item implements ProjectileItem {
                 com.destroystokyo.paper.event.player.PlayerElytraBoostEvent event = new com.destroystokyo.paper.event.player.PlayerElytraBoostEvent((org.bukkit.entity.Player) user.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemStack), (org.bukkit.entity.Firework) delayed.projectile().getBukkitEntity(), org.bukkit.craftbukkit.CraftEquipmentSlot.getHand(hand));
                 if (event.callEvent() && delayed.attemptSpawn()) {
                     user.awardStat(Stats.ITEM_USED.get(this)); // Moved up from below
+
+                    // Purpur start
+                    if (world.purpurConfig.elytraDamagePerFireworkBoost > 0) {
+                        List<net.minecraft.world.entity.EquipmentSlot> list = net.minecraft.world.entity.EquipmentSlot.VALUES.stream().filter((enumitemslot) -> net.minecraft.world.entity.LivingEntity.canGlideUsing(user.getItemBySlot(enumitemslot), enumitemslot)).toList();
+                        net.minecraft.world.entity.EquipmentSlot enumitemslot = net.minecraft.Util.getRandom(list, user.random);
+
+                        ItemStack glideItem = user.getItemBySlot(enumitemslot);
+                        if (user.canGlide()) {
+                            glideItem.hurtAndBreak(world.purpurConfig.elytraDamagePerFireworkBoost, user, enumitemslot);
+                        }
+                    }
+                    // Purpur end
                     if (event.shouldConsume() && !user.hasInfiniteMaterials()) {
                         itemStack.shrink(1); // Moved up from below
                     } else ((net.minecraft.server.level.ServerPlayer) user).getBukkitEntity().updateInventory();
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index 122859ba52e9719f98111a9c543dab27abac39b5..c616ebbf0f709b8c3a500a23a2190f7023f7757d 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -786,6 +786,12 @@ public final class ItemStack implements DataComponentHolder {
                 org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemBreakEvent(serverPlayer, this); // Paper - Add EntityDamageItemEvent
             }
             // CraftBukkit end
+            // Purpur start
+            if (this.has(DataComponents.GLIDER)) {
+                setDamageValue(this.getMaxDamage() - 1);
+                return;
+            }
+            // Purpur end
 
             this.shrink(1);
             breakCallback.accept(item);
diff --git a/src/main/java/net/minecraft/world/item/TridentItem.java b/src/main/java/net/minecraft/world/item/TridentItem.java
index 2b2af4b7cc2c8be8c3aed30885be26816c021bdc..aff4f33be216f62d6c6e139dcd7fd82efdbd267c 100644
--- a/src/main/java/net/minecraft/world/item/TridentItem.java
+++ b/src/main/java/net/minecraft/world/item/TridentItem.java
@@ -132,6 +132,18 @@ public class TridentItem extends Item implements ProjectileItem {
                         f4 *= f / f6;
                         f5 *= f / f6;
                         org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerRiptideEvent(entityhuman, stack, f3, f4, f5); // CraftBukkit
+
+                        // Purpur start
+                        List<EquipmentSlot> list = EquipmentSlot.VALUES.stream().filter((enumitemslot) -> LivingEntity.canGlideUsing(entityhuman.getItemBySlot(enumitemslot), enumitemslot)).toList();
+                        if (!list.isEmpty()) {
+                            EquipmentSlot enumitemslot = net.minecraft.Util.getRandom(list, entityhuman.random);
+                            ItemStack glideItem = entityhuman.getItemBySlot(enumitemslot);
+                            if (glideItem.has(net.minecraft.core.component.DataComponents.GLIDER) && world.purpurConfig.elytraDamagePerTridentBoost > 0) {
+                                glideItem.hurtAndBreak(world.purpurConfig.elytraDamagePerTridentBoost, entityhuman, enumitemslot);
+                            }
+                        }
+                        // Purpur end
+
                         entityhuman.push((double) f3, (double) f4, (double) f5);
                         entityhuman.startAutoSpinAttack(20, 8.0F, stack);
                         if (entityhuman.onGround()) {
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 6b7a6a7889353f9557c6e3bfa8ff8caf66416c1b..bc355a6b03877ca5e74688df13a089b487cde86c 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -109,6 +109,17 @@ public class PurpurWorldConfig {
         tridentLoyaltyVoidReturnHeight = getDouble("gameplay-mechanics.trident-loyalty-void-return-height", tridentLoyaltyVoidReturnHeight);
     }
 
+    public int elytraDamagePerSecond = 1;
+    public double elytraDamageMultiplyBySpeed = 0;
+    public int elytraDamagePerFireworkBoost = 0;
+    public int elytraDamagePerTridentBoost = 0;
+    private void elytraSettings() {
+        elytraDamagePerSecond = getInt("gameplay-mechanics.elytra.damage-per-second", elytraDamagePerSecond);
+        elytraDamageMultiplyBySpeed = getDouble("gameplay-mechanics.elytra.damage-multiplied-by-speed", elytraDamageMultiplyBySpeed);
+        elytraDamagePerFireworkBoost = getInt("gameplay-mechanics.elytra.damage-per-boost.firework", elytraDamagePerFireworkBoost);
+        elytraDamagePerTridentBoost = getInt("gameplay-mechanics.elytra.damage-per-boost.trident", elytraDamagePerTridentBoost);
+    }
+
     public double minecartMaxSpeed = 0.4D;
     public boolean minecartPlaceAnywhere = false;
     public boolean minecartControllable = false;