From de3f60d3f40ff024e986686365239235fb52da94 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@gmail.com>
Date: Sat, 3 Aug 2019 23:17:19 +0200
Subject: [PATCH] Added a new method to VoxelChunk.

---
 world/voxel_chunk.cpp | 23 +++++++++++++++++++++++
 world/voxel_chunk.h   |  1 +
 2 files changed, 24 insertions(+)

diff --git a/world/voxel_chunk.cpp b/world/voxel_chunk.cpp
index 15f4d1a..b58e6b9 100644
--- a/world/voxel_chunk.cpp
+++ b/world/voxel_chunk.cpp
@@ -271,6 +271,28 @@ void VoxelChunk::add_lights_into(Array target) {
 	}
 }
 
+void VoxelChunk::add_unique_lights_into(Array target) {
+	for (int i = 0; i < _voxel_lights.size(); ++i) {
+        Ref<VoxelLight> l = _voxel_lights.get(i);
+        
+        bool append = true;
+        for (int j = 0; j < target.size(); ++j) {
+            Ref<VoxelLight> l2 = target.get(j);
+            
+            if (!l2.is_valid())
+                continue;
+            
+            if (l2->get_world_position() == l->get_world_position() && l2->get_size() == l->get_size()) {
+                append = false;
+                break;
+            }
+        }
+        
+        if (append)
+            target.append(l);
+	}
+}
+
 Array VoxelChunk::get_lights() {
 	Array target;
 
@@ -807,6 +829,7 @@ void VoxelChunk::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("remove_voxel_light", "light"), &VoxelChunk::remove_voxel_light);
 	ClassDB::bind_method(D_METHOD("clear_voxel_lights"), &VoxelChunk::clear_voxel_lights);
 	ClassDB::bind_method(D_METHOD("add_lights_into", "lights"), &VoxelChunk::add_lights_into);
+	ClassDB::bind_method(D_METHOD("add_unique_lights_into", "lights"), &VoxelChunk::add_unique_lights_into);
 	ClassDB::bind_method(D_METHOD("get_lights"), &VoxelChunk::get_lights);
 
 	ClassDB::bind_method(D_METHOD("bake_lights"), &VoxelChunk::bake_lights);
diff --git a/world/voxel_chunk.h b/world/voxel_chunk.h
index 33278f4..0b1ef98 100644
--- a/world/voxel_chunk.h
+++ b/world/voxel_chunk.h
@@ -96,6 +96,7 @@ public:
 	void clear_voxel_lights();
 
 	void add_lights_into(Array target);
+    void add_unique_lights_into(Array target);
     Array get_lights();
 
     void bake_lights();