From 4ff697e19bd0b8444506b31e45694112d0c4a5b9 Mon Sep 17 00:00:00 2001
From: WayZer <himc.wicp@gmail.com>
Date: Thu, 3 Mar 2022 00:26:37 +0800
Subject: [PATCH] API: add DropDownEvent (#6611)

* API: add DropDownEvent

(cherry picked from commit d44a45c916da391200f1ffad3f98b15a99abb1aa)

* request changes
---
 .../mindustry/entities/comp/PayloadComp.java   |  2 ++
 core/src/mindustry/game/EventType.java         | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/core/src/mindustry/entities/comp/PayloadComp.java b/core/src/mindustry/entities/comp/PayloadComp.java
index 5bd52e7165..68d1dc8786 100644
--- a/core/src/mindustry/entities/comp/PayloadComp.java
+++ b/core/src/mindustry/entities/comp/PayloadComp.java
@@ -156,6 +156,7 @@ abstract class PayloadComp implements Posc, Rotc, Hitboxc, Unitc{
         if(!u.isAdded()) u.team.data().updateCount(u.type, -1);
         u.add();
         u.unloaded();
+        Events.fire(new PayloadDropEvent(self(), u));
 
         return true;
     }
@@ -168,6 +169,7 @@ abstract class PayloadComp implements Posc, Rotc, Hitboxc, Unitc{
         if(on != null && Build.validPlace(tile.block, tile.team, tx, ty, tile.rotation, false)){
             int rot = (int)((rotation + 45f) / 90f) % 4;
             payload.place(on, rot);
+            Events.fire(new PayloadDropEvent(self(), tile));
 
             if(getControllerName() != null){
                 payload.build.lastAccessed = getControllerName();
diff --git a/core/src/mindustry/game/EventType.java b/core/src/mindustry/game/EventType.java
index 26d7dcb740..74fa50582e 100644
--- a/core/src/mindustry/game/EventType.java
+++ b/core/src/mindustry/game/EventType.java
@@ -242,6 +242,24 @@ public class EventType{
         }
     }
 
+    public static class PayloadDropEvent{
+        public final Unit carrier;
+        public final @Nullable Unit unit;
+        public final @Nullable Building build;
+
+        public PayloadDropEvent(Unit carrier, Unit unit){
+            this.carrier = carrier;
+            this.unit = unit;
+            this.build = null;
+        }
+
+        public PayloadDropEvent(Unit carrier, Building build){
+            this.carrier = carrier;
+            this.build = build;
+            this.unit = null;
+        }
+    }
+
     public static class UnitControlEvent{
         public final Player player;
         public final @Nullable Unit unit;