From de3ee7ba415bbf9bd665119fc78605ab7082745c Mon Sep 17 00:00:00 2001
From: Kurt <kaphotics@gmail.com>
Date: Mon, 1 Jun 2020 20:47:04 -0700
Subject: [PATCH] Rotate terrain tile on ctlr-shift click

Closes #290
---
 .../Structures/Map/Terrain/TerrainTile.cs     | 20 +++++++++++++++++++
 NHSE.WinForms/Subforms/Map/FieldItemEditor.cs | 14 +++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/NHSE.Core/Structures/Map/Terrain/TerrainTile.cs b/NHSE.Core/Structures/Map/Terrain/TerrainTile.cs
index a75d143..0d509ba 100644
--- a/NHSE.Core/Structures/Map/Terrain/TerrainTile.cs
+++ b/NHSE.Core/Structures/Map/Terrain/TerrainTile.cs
@@ -74,5 +74,25 @@ public void CopyRoadFrom(TerrainTile tile)
             VariationRoad = tile.VariationRoad;
             LandMakingAngleRoad = tile.LandMakingAngleRoad;
         }
+
+        public bool Rotate() => UnitModelRoad != 0 ? RotateRoad() : RotateTerrain();
+
+        private bool RotateTerrain()
+        {
+            if (UnitModel == TerrainUnitModel.Base)
+                return false;
+            var rot = LandMakingAngle;
+            rot = (ushort)((rot + 1) & 3);
+            LandMakingAngle = rot;
+            return true;
+        }
+
+        private bool RotateRoad()
+        {
+            var rot = LandMakingAngleRoad;
+            rot = (ushort) ((rot + 1) & 3);
+            LandMakingAngleRoad = rot;
+            return true;
+        }
     }
 }
diff --git a/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs b/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs
index 09d150d..51cb105 100644
--- a/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs
+++ b/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs
@@ -204,6 +204,9 @@ private void OmniTileTerrain(TerrainTile tile)
                 default:
                     ViewTile(tile);
                     return;
+                case Keys.Shift | Keys.Control:
+                    RotateTile(tile);
+                    return;
                 case Keys.Shift:
                     SetTile(tile);
                     return;
@@ -358,6 +361,17 @@ private void SetTile(Item tile, int x, int y)
             ReloadItems();
         }
 
+        private void RotateTile(TerrainTile tile)
+        {
+            bool rotated = tile.Rotate();
+            if (!rotated)
+            {
+                System.Media.SystemSounds.Asterisk.Play();
+                return;
+            }
+            ReloadBuildingsTerrain();
+        }
+
         private void SetTile(TerrainTile tile)
         {
             var pgt = (TerrainTile)PG_TerrainTile.SelectedObject;