From a364f91bd5b55e74e562ed11f8cf08b2b22be953 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@protonmail.com>
Date: Thu, 20 May 2021 19:16:25 +0200
Subject: [PATCH] Set up job's texture packer property.

---
 prop_instance_merger.cpp | 37 ++++++++++++++++++++++++++++++-------
 1 file changed, 30 insertions(+), 7 deletions(-)

diff --git a/prop_instance_merger.cpp b/prop_instance_merger.cpp
index b8fc0c3..dba31ea 100644
--- a/prop_instance_merger.cpp
+++ b/prop_instance_merger.cpp
@@ -45,6 +45,10 @@ typedef class RenderingServer VS;
 #include "./props/prop_data_prop.h"
 #include "./props/prop_data_scene.h"
 
+#if TEXTURE_PACKER_PRESENT
+#include "./singleton/prop_texture_cache.h"
+#endif
+
 Ref<PropInstanceJob> PropInstanceMerger::get_job() {
 	return _job;
 }
@@ -197,16 +201,35 @@ void PropInstanceMerger::_build() {
 	_building = true;
 	_build_queued = false;
 
-	if (!_job.is_valid()) {
-		_job = Ref<PropInstanceJob>(memnew(PropInstancePropJob()));
-	}
-
-	_job->set_prop_instace(this);
-
-	if (!is_inside_tree()) {
+	if (!_prop_data.is_valid()) {
+		_building = false;
 		return;
 	}
 
+	if (!_job.is_valid()) {
+		_job = Ref<PropInstanceJob>(memnew(PropInstancePropJob()));
+		_job->set_prop_instace(this);
+	}
+
+	if (!is_inside_tree()) {
+		_building = false;
+		_build_queued = true;
+		return;
+	}
+
+#if TEXTURE_PACKER_PRESENT
+	Ref<TexturePacker> packer = PropTextureCache::get_singleton()->get_or_create_texture_threaded(_prop_data);
+
+	if (packer->get_generated_texture_count() == 0) {
+		_building = false;
+		_build_queued = true;
+		return;
+	}
+
+	_job->set_texture_packer(packer);
+#endif
+
+
 	for (int i = 0; i < get_child_count(); ++i) {
 		Node *n = get_child(i);