From 3dcce18ceb63da9c88a6d285623cb6f98b41c167 Mon Sep 17 00:00:00 2001
From: NorbiPeti <szatmari.norbert.peter@gmail.com>
Date: Mon, 8 Jun 2020 00:10:10 +0200
Subject: [PATCH] Add method to get selected blocks by player

---
 .../GamecraftModdingAPI.csproj                |  1 +
 GamecraftModdingAPI/Player.cs                 |  9 ++++++++
 GamecraftModdingAPI/Players/PlayerEngine.cs   | 22 +++++++++++++++++++
 3 files changed, 32 insertions(+)

diff --git a/GamecraftModdingAPI/GamecraftModdingAPI.csproj b/GamecraftModdingAPI/GamecraftModdingAPI.csproj
index c72b77a..559ddd8 100644
--- a/GamecraftModdingAPI/GamecraftModdingAPI.csproj
+++ b/GamecraftModdingAPI/GamecraftModdingAPI.csproj
@@ -8,6 +8,7 @@
     <PackageLicenseExpression>GNU General Public Licence 3+</PackageLicenseExpression>
     <PackageProjectUrl>https://git.exmods.org/modtainers/GamecraftModdingAPI</PackageProjectUrl>
     <NeutralLanguage>en-CA</NeutralLanguage>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
   </PropertyGroup>
diff --git a/GamecraftModdingAPI/Player.cs b/GamecraftModdingAPI/Player.cs
index 086c910..efb381e 100644
--- a/GamecraftModdingAPI/Player.cs
+++ b/GamecraftModdingAPI/Player.cs
@@ -366,6 +366,15 @@ namespace GamecraftModdingAPI
 		        : null;
         }
 
+        /// <summary>
+        /// Returns the blocks that are in the player's current selection.
+        /// </summary>
+        /// <returns>An array of blocks or an empty array</returns>
+        public Block[] GetSelectedBlocks()
+        {
+	        return playerEngine.GetSelectedBlocks(Id);
+        }
+
         public bool Equals(Player other)
         {
 	        if (ReferenceEquals(null, other)) return false;
diff --git a/GamecraftModdingAPI/Players/PlayerEngine.cs b/GamecraftModdingAPI/Players/PlayerEngine.cs
index bcbfd11..4ab5ed9 100644
--- a/GamecraftModdingAPI/Players/PlayerEngine.cs
+++ b/GamecraftModdingAPI/Players/PlayerEngine.cs
@@ -5,6 +5,7 @@ using RobocraftX.Character;
 using RobocraftX.Character.Movement;
 using RobocraftX.Common.Players;
 using RobocraftX.Common.Input;
+using RobocraftX.CR.MachineEditing.BoxSelect;
 using RobocraftX.Physics;
 using RobocraftX.Blocks.Ghost;
 using RobocraftX.Character.Camera;
@@ -408,5 +409,26 @@ namespace GamecraftModdingAPI.Players
 
 	        return null;
         }
+
+        public unsafe Block[] GetSelectedBlocks(uint playerid)
+        {
+	        if (!entitiesDB.Exists<BoxSelectStateEntityStruct>(playerid,
+		        BoxSelectExclusiveGroups.BoxSelectVolumeExclusiveGroup))
+		        return new Block[0];
+	        var state = entitiesDB.QueryEntity<BoxSelectStateEntityStruct>(playerid,
+		        BoxSelectExclusiveGroups.BoxSelectVolumeExclusiveGroup);
+	        var blocks = entitiesDB.QueryEntity<SelectedBlocksStruct>(playerid,
+		        BoxSelectExclusiveGroups.BoxSelectVolumeExclusiveGroup);
+	        if (!state.active) return new Block[0];
+	        var pointer = (EGID*) blocks.selectedBlocks.ToPointer();
+	        var ret = new Block[blocks.count];
+	        for (int j = 0; j < blocks.count; j++)
+	        {
+		        var egid = pointer[j];
+		        ret[j] = new Block(egid);
+	        }
+
+	        return ret;
+        }
 	}
 }