From 99e977930083d1bc1d8c7e62bcb6125c350d4d91 Mon Sep 17 00:00:00 2001
From: copygirl <copygirl@mcft.net>
Date: Sat, 31 Aug 2024 19:34:07 +0200
Subject: [PATCH] Quick and dirty terrain texture editing

---
 terrain/Terrain+Editing.cs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/terrain/Terrain+Editing.cs b/terrain/Terrain+Editing.cs
index 7b42e7a..1090caf 100644
--- a/terrain/Terrain+Editing.cs
+++ b/terrain/Terrain+Editing.cs
@@ -84,6 +84,25 @@ public partial class Terrain
 			NotifyPropertyListChanged();
 		}
 
+		if ((ev is InputEventMouseButton { ButtonIndex: var wheel2, Pressed: var pressed2, CtrlPressed: true })
+		 && (wheel2 is MouseButton.WheelUp or MouseButton.WheelDown) && (_selection != null))
+		{
+			GetViewport().SetInputAsHandled();
+			if (!pressed2) return;
+
+			var amount = (wheel2 == MouseButton.WheelUp) ? 1 : -1;
+			var selection = TileRegion.From(_selection.Value);
+
+			foreach (var pos in selection.GetAllTiles()) {
+				var tile = GetTile(pos);
+				tile.TexturePrimary = PosMod(tile.TexturePrimary + amount, 4);
+				SetTile(pos, tile);
+			}
+
+			UpdateMeshAndShape();
+			NotifyPropertyListChanged();
+		}
+
 		if (ev is InputEventMouseMotion)
 			_unhandledMotion = true;
 	}