Purpur/patches/server/0060-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 38c959c8af4f39f50d57fe49b8f8a1f6c3ed9cbb..21c0f2d109a30468c1db6c36bd3ae04ef9706fc0 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3639,7 +3639,16 @@ public abstract class LivingEntity extends Entity implements Attackable {
                     int j = i / 10;
 
                     if (j % 2 == 0) {
-                        itemstack.hurtAndBreak(1, this, EquipmentSlot.CHEST);
+                        // Purpur start
+                        int damage = level().purpurConfig.elytraDamagePerSecond;
+                        if (level().purpurConfig.elytraDamageMultiplyBySpeed > 0) {
+                            double speed = getDeltaMovement().lengthSqr();
+                            if (speed > level().purpurConfig.elytraDamageMultiplyBySpeed) {
+                                damage *= (int) speed;
+                            }
+                        }
+                        itemstack.hurtAndBreak(damage, this, EquipmentSlot.CHEST);
+                        // Purpur end
                     }
 
                     this.gameEvent(GameEvent.ELYTRA_GLIDE);
diff --git a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
index 218f2f085309f04438f8b07bc41cf242583db2dc..ea8e49b42b9dde74784189430be66ed6978015dd 100644
--- a/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
+++ b/src/main/java/net/minecraft/world/item/FireworkRocketItem.java
@@ -65,6 +65,14 @@ 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) fireworkRocketEntity.getBukkitEntity(), org.bukkit.craftbukkit.CraftEquipmentSlot.getHand(hand));
                 if (event.callEvent() && world.addFreshEntity(fireworkRocketEntity)) {
                     user.awardStat(Stats.ITEM_USED.get(this));
+                    // Purpur start
+                    if (world.purpurConfig.elytraDamagePerFireworkBoost > 0) {
+                        ItemStack chestItem = user.getItemBySlot(net.minecraft.world.entity.EquipmentSlot.CHEST);
+                        if (chestItem.getItem() == Items.ELYTRA) {
+                            chestItem.hurtAndBreak(world.purpurConfig.elytraDamagePerFireworkBoost, user, net.minecraft.world.entity.EquipmentSlot.CHEST);
+                        }
+                    }
+                    // Purpur end
                     if (event.shouldConsume() && !user.hasInfiniteMaterials()) {
                         itemStack.shrink(1);
                     } 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 c89663b093120d9c43a7f4d24ec8d798b3fa6d5f..5f57f3494705ca1664dbca395c1af3280a50cad8 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -728,6 +728,12 @@ public final class ItemStack implements DataComponentHolder {
                         org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemBreakEvent(serverPlayer, this); // Paper - Add EntityDamageItemEvent
                     }
                     // CraftBukkit end
+                    // Purpur start
+                    if (item == Items.ELYTRA) {
+                        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 f1b2d388a1a40a1d909a2e726f32d6c15e1eb0eb..4934bae61114b49a9f8d0ed044fbb881210df32a 100644
--- a/src/main/java/net/minecraft/world/item/TridentItem.java
+++ b/src/main/java/net/minecraft/world/item/TridentItem.java
@@ -127,6 +127,14 @@ 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
+                            ItemStack chestItem = entityhuman.getItemBySlot(EquipmentSlot.CHEST);
+                            if (chestItem.getItem() == Items.ELYTRA && world.purpurConfig.elytraDamagePerTridentBoost > 0) {
+                                chestItem.hurtAndBreak(world.purpurConfig.elytraDamagePerTridentBoost, entityhuman, EquipmentSlot.CHEST);
+                            }
+                            // 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 c3f652ff39d9736e1ff2faac1ce8999d99d38524..238cec1e37fcc9ca676a680ee616b43f1312dbd0 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -113,6 +113,17 @@ public class PurpurWorldConfig {
         voidDamageDealt = getDouble("gameplay-mechanics.void-damage-dealt", voidDamageDealt);
     }
 
+    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;