From 4e9a9d211d8e87eefba62cd759310e742b3fca17 Mon Sep 17 00:00:00 2001
From: mcmonkey <agoodwin@freneticllc.com>
Date: Tue, 19 Feb 2019 01:29:40 -0800
Subject: [PATCH] add source_once to hurt command, fixes #1917

---
 .../denizen/scripts/commands/BukkitCommandRegistry.java   | 1 +
 .../denizen/scripts/commands/entity/HurtCommand.java      | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/BukkitCommandRegistry.java b/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/BukkitCommandRegistry.java
index 447795a334..1d37f4920d 100644
--- a/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/BukkitCommandRegistry.java
+++ b/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/BukkitCommandRegistry.java
@@ -1864,6 +1864,7 @@ public void registerCoreMembers() {
         // You may also optionally specify a damage cause to fire a proper damage event with the given cause,
         // only doing the damage if the event wasn't cancelled. Calculates the 'final damage' rather
         // than using the raw damage input number. See <@link language damage cause> for damage causes.
+        // To make the source only be included in the initial damage event, and not the application of damage, specify 'source_once'.
         //
         // @Tags
         // <e@entity.health>
diff --git a/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/entity/HurtCommand.java b/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/entity/HurtCommand.java
index da1c1d7fef..221d7030d4 100644
--- a/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/entity/HurtCommand.java
+++ b/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/entity/HurtCommand.java
@@ -43,6 +43,10 @@ else if (!scriptEntry.hasObject("cause")
                     && arg.matchesEnum(EntityDamageEvent.DamageCause.values())) {
                 scriptEntry.addObject("cause", arg.asElement());
             }
+            else if (!scriptEntry.hasObject("source_once")
+                    && arg.matchesOne("source_once")) {
+                scriptEntry.addObject("source_once", new Element(true));
+            }
             else {
                 arg.reportUnhandled();
             }
@@ -76,11 +80,13 @@ public void execute(ScriptEntry scriptEntry) throws CommandExecutionException {
         dEntity source = (dEntity) scriptEntry.getObject("source");
         Element amountElement = scriptEntry.getElement("amount");
         Element cause = scriptEntry.getElement("cause");
+        Element source_once = scriptEntry.getElement("source_once");
 
         if (scriptEntry.dbCallShouldDebug()) {
 
             dB.report(scriptEntry, getName(), amountElement.debug()
                     + aH.debugList("entities", entities)
+                    + (source_once == null ? "" : source_once.debug())
                     + (cause == null ? "" : cause.debug())
                     + (source == null ? "" : source.debug()));
 
@@ -107,7 +113,7 @@ public void execute(ScriptEntry scriptEntry) throws CommandExecutionException {
                 Bukkit.getPluginManager().callEvent(ede);
                 if (!ede.isCancelled()) {
                     entity.getLivingEntity().setLastDamageCause(ede);
-                    if (source == null) {
+                    if (source == null || (source_once != null && source_once.asBoolean())) {
                         entity.getLivingEntity().damage(ede.getFinalDamage());
                     }
                     else {