Fix NPE when setting a player's spectator target (#1596)

Fix NPE when setting a player's spectator target
This commit is contained in:
Caleb Bassham
2018-10-21 14:27:53 -05:00
parent 4c9478551c
commit 0c7c2af037
41 changed files with 136 additions and 130 deletions

View File

@@ -23,34 +23,39 @@ index 7ac07ac07ac0..7ac07ac07ac0 100644
- public void setSpectatorTarget(Entity entity) {
+ public void setSpectatorTarget(Entity newSpectatorTarget) {
+ // Paper start - Add PlayerStartSpectatingEntityEvent and PlayerStopSpectatingEntity Event
Entity entity1 = this.getSpecatorTarget();
- this.cv = (Entity) (entity == null ? this : entity);
- if (entity1 != this.cv) {
- this.playerConnection.sendPacket(new PacketPlayOutCamera(this.cv));
- this.playerConnection.a(this.cv.locX, this.cv.locY, this.cv.locZ, this.yaw, this.pitch, TeleportCause.SPECTATE); // CraftBukkit
+ if (newSpectatorTarget == null) {
+ newSpectatorTarget = this;
+ }
+
+ if (entity1 != newSpectatorTarget) {
+ if (newSpectatorTarget == this) {
+ com.destroystokyo.paper.event.player.PlayerStopSpectatingEntityEvent playerStopSpectatingEntityEvent = new com.destroystokyo.paper.event.player.PlayerStopSpectatingEntityEvent(this.getBukkitEntity(), entity1.getBukkitEntity());
+
+ if (!playerStopSpectatingEntityEvent.callEvent()) {
+ return;
+ }
+ } else {
+ com.destroystokyo.paper.event.player.PlayerStartSpectatingEntityEvent playerStartSpectatingEntityEvent = new com.destroystokyo.paper.event.player.PlayerStartSpectatingEntityEvent(this.getBukkitEntity(), entity1.getBukkitEntity(), newSpectatorTarget.getBukkitEntity());
+
+ if (!playerStartSpectatingEntityEvent.callEvent()) {
+ return;
+ }
+ }
+
this.playerConnection.sendPacket(new PacketPlayOutCamera(this.cv));
this.playerConnection.a(this.cv.locX, this.cv.locY, this.cv.locZ, this.yaw, this.pitch, TeleportCause.SPECTATE); // CraftBukkit
}
+ if (entity1 == newSpectatorTarget) return; // new spec target is the current spec target
+
+ if (newSpectatorTarget == this) {
+ com.destroystokyo.paper.event.player.PlayerStopSpectatingEntityEvent playerStopSpectatingEntityEvent = new com.destroystokyo.paper.event.player.PlayerStopSpectatingEntityEvent(this.getBukkitEntity(), entity1.getBukkitEntity());
+
+ if (!playerStopSpectatingEntityEvent.callEvent()) {
+ return;
+ }
+ } else {
+ com.destroystokyo.paper.event.player.PlayerStartSpectatingEntityEvent playerStartSpectatingEntityEvent = new com.destroystokyo.paper.event.player.PlayerStartSpectatingEntityEvent(this.getBukkitEntity(), entity1.getBukkitEntity(), newSpectatorTarget.getBukkitEntity());
+
+ if (!playerStartSpectatingEntityEvent.callEvent()) {
+ return;
+ }
+ }
+
+ setSpectatorTargetField(newSpectatorTarget);
+
+ this.playerConnection.sendPacket(new PacketPlayOutCamera(newSpectatorTarget));
+ // Paper end
+
+ this.playerConnection.a(this.cv.locX, this.cv.locY, this.cv.locZ, this.yaw, this.pitch, TeleportCause.SPECTATE); // CraftBukkit
}
protected void E() {