From ad8805b1cbe548095f12f76cf7e57bd652b77484 Mon Sep 17 00:00:00 2001
From: AlicanCopur <37244649+AlicanCopur@users.noreply.github.com>
Date: Tue, 5 May 2020 12:05:30 +0300
Subject: [PATCH 1/3] Added call BlockGrowEvent (#1403)

Added call BlockGrowEvent in Sugarcane
---
 src/main/java/cn/nukkit/block/BlockSugarcane.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/cn/nukkit/block/BlockSugarcane.java b/src/main/java/cn/nukkit/block/BlockSugarcane.java
index 529700e6163..4948a709b43 100644
--- a/src/main/java/cn/nukkit/block/BlockSugarcane.java
+++ b/src/main/java/cn/nukkit/block/BlockSugarcane.java
@@ -104,7 +104,12 @@ public int onUpdate(int type) {
                     for (int y = 1; y < 3; ++y) {
                         Block b = this.getLevel().getBlock(new Vector3(this.x, this.y + y, this.z));
                         if (b.getId() == AIR) {
-                            this.getLevel().setBlock(b, Block.get(BlockID.SUGARCANE_BLOCK), false);
+                            BlockGrowEvent ev = new BlockGrowEvent(b, Block.get(BlockID.SUGARCANE_BLOCK));
+                            Server.getInstance().getPluginManager().callEvent(ev);
+                            
+                            if (!ev.isCancelled()) {
+                                this.getLevel().setBlock(b, Block.get(BlockID.SUGARCANE_BLOCK), false);
+                            }
                             break;
                         }
                     }

From a71c3525e5db0085f156101823321624b8488365 Mon Sep 17 00:00:00 2001
From: AlicanCopur <37244649+AlicanCopur@users.noreply.github.com>
Date: Tue, 5 May 2020 12:33:53 +0300
Subject: [PATCH 2/3] Added PlayerJumpEvent (#1405)

* Create PlayerJumpEvent.java

* Call PlayerJumpEvent

* Removed Cancellable
---
 src/main/java/cn/nukkit/Player.java              |  3 +++
 .../cn/nukkit/event/player/PlayerJumpEvent.java  | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 src/main/java/cn/nukkit/event/player/PlayerJumpEvent.java

diff --git a/src/main/java/cn/nukkit/Player.java b/src/main/java/cn/nukkit/Player.java
index 6958440880b..5c7453935a9 100644
--- a/src/main/java/cn/nukkit/Player.java
+++ b/src/main/java/cn/nukkit/Player.java
@@ -27,6 +27,7 @@
 import cn.nukkit.event.player.PlayerAsyncPreLoginEvent.LoginResult;
 import cn.nukkit.event.player.PlayerInteractEvent.Action;
 import cn.nukkit.event.player.PlayerTeleportEvent.TeleportCause;
+import cn.nukkit.event.player.PlayerJumpEvent;
 import cn.nukkit.event.server.DataPacketReceiveEvent;
 import cn.nukkit.event.server.DataPacketSendEvent;
 import cn.nukkit.form.window.FormWindow;
@@ -2485,6 +2486,8 @@ public void onCompletion(Server server) {
                             this.respawn();
                             break;
                         case PlayerActionPacket.ACTION_JUMP:
+                            PlayerJumpEvent playerJumpEvent = new PlayerJumpEvent(this);
+                            this.server.getPluginManager().callEvent(playerJumpEvent);
                             break packetswitch;
                         case PlayerActionPacket.ACTION_START_SPRINT:
                             PlayerToggleSprintEvent playerToggleSprintEvent = new PlayerToggleSprintEvent(this, true);
diff --git a/src/main/java/cn/nukkit/event/player/PlayerJumpEvent.java b/src/main/java/cn/nukkit/event/player/PlayerJumpEvent.java
new file mode 100644
index 00000000000..b915ca1d8cb
--- /dev/null
+++ b/src/main/java/cn/nukkit/event/player/PlayerJumpEvent.java
@@ -0,0 +1,16 @@
+package cn.nukkit.event.player;
+
+import cn.nukkit.Player;
+import cn.nukkit.event.HandlerList;
+
+public class PlayerJumpEvent extends PlayerEvent {
+    private static final HandlerList handlers = new HandlerList();
+
+    public static HandlerList getHandlers() {
+        return handlers;
+    }
+
+    public PlayerJumpEvent(Player player){
+        this.player = player;
+    }
+}

From 42fac211c963cc0c07d7f2516df550788cc6027c Mon Sep 17 00:00:00 2001
From: PetteriM1 <petteri.malkavaara1@gmail.com>
Date: Wed, 6 May 2020 11:34:48 +0300
Subject: [PATCH 3/3] Fix wrong flags in MoveEntityAbsolutePacket + set
 onGround (#1410)

---
 src/main/java/cn/nukkit/level/Level.java                      | 1 +
 .../cn/nukkit/network/protocol/MoveEntityAbsolutePacket.java  | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/java/cn/nukkit/level/Level.java b/src/main/java/cn/nukkit/level/Level.java
index a14bb4d4546..1047fb2f137 100644
--- a/src/main/java/cn/nukkit/level/Level.java
+++ b/src/main/java/cn/nukkit/level/Level.java
@@ -3236,6 +3236,7 @@ public void addEntityMovement(Entity entity, double x, double y, double z, doubl
         pk.yaw = (float) yaw;
         pk.headYaw = (float) headYaw;
         pk.pitch = (float) pitch;
+        pk.onGround = entity.onGround;
 
         Server.broadcastPacket(entity.getViewers().values(), pk);
     }
diff --git a/src/main/java/cn/nukkit/network/protocol/MoveEntityAbsolutePacket.java b/src/main/java/cn/nukkit/network/protocol/MoveEntityAbsolutePacket.java
index f79138a8413..b4615cae370 100644
--- a/src/main/java/cn/nukkit/network/protocol/MoveEntityAbsolutePacket.java
+++ b/src/main/java/cn/nukkit/network/protocol/MoveEntityAbsolutePacket.java
@@ -46,10 +46,10 @@ public void encode() {
         this.reset();
         this.putEntityRuntimeId(this.eid);
         byte flags = 0;
-        if (teleport) {
+        if (onGround) {
             flags |= 0x01;
         }
-        if (onGround) {
+        if (teleport) {
             flags |= 0x02;
         }
         this.putByte(flags);