riversong code showcase

2026-05-21 15:52:18 +02:00
commit 4c9eea1c02
462 changed files with 23406 additions and 0 deletions
--- a/Source/Riversong/Game/EditTools/DragTool.cs
+++ b/Source/Riversong/Game/EditTools/DragTool.cs
@@ -0,0 +1,96 @@
+using Cysharp.Threading.Tasks;
+using Unity.Mathematics;
+using UnityEngine.InputSystem;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public abstract class DragTool : EditTool
+    {
+        private IPointerService _pointerService;
+
+        private ITileSpace _tileSpace;
+
+        private bool _isDragging;
+
+        private int2 _startTile;
+
+        private int2 _endTile;
+
+        private bool _isValid;
+
+        protected DragTool(IServiceLocator serviceLocator) : base(serviceLocator)
+        {
+        }
+
+        protected virtual DeletedGameObjectsFilter DeletedGameObjectsFilter => DeletedGameObjectsFilter.None;
+
+        public override async UniTask InitializeAsync()
+        {
+            await base.InitializeAsync();
+
+            _pointerService = ServiceLocator.GetService<IPointerService>();
+            _tileSpace = ServiceLocator.GetService<ITileSpace>();
+        }
+
+        public override void OnDisabled()
+        {
+            base.OnDisabled();
+
+            _isDragging = false;
+        }
+
+        public override void Update()
+        {
+            base.Update();
+
+            AffectedTiles.Clear();
+
+            var lmb = Mouse.current.leftButton;
+
+            var isPointerOnTerrain = _pointerService.TryGetPositionOnTerrain(out var position);
+            if (!isPointerOnTerrain)
+            {
+                _isDragging &= lmb.isPressed;
+                _isValid = false;
+                return;
+            }
+
+            if (!_isDragging)
+            {
+                _startTile = _tileSpace.WorldToTile(position);
+                _endTile = _startTile;
+            }
+            _isDragging |= _pointerService.TryConsumeLeftClick();
+            if (_isDragging && !_pointerService.IsPointerOverUI) _endTile = _tileSpace.WorldToTile(position);
+
+            _isValid = Validate(ref _startTile, ref _endTile);
+            UpdateAffectedTiles(_isValid, _startTile, _endTile);
+
+            if (lmb.wasReleasedThisFrame)
+            {
+                if (_isValid && !_pointerService.IsPointerOverUI) DoTool(_startTile, _endTile);
+
+                _isDragging = false;
+            }
+        }
+
+        protected abstract bool Validate(ref int2 startTile, ref int2 endTile);
+
+        protected abstract void UpdateAffectedTiles(bool isValid, int2 startTile, int2 endTile);
+
+        protected abstract void DoTool(int2 startTile, int2 endTile);
+
+        public override void GetDeleteGameObjectsPreviewInfo(out DeletedGameObjectsFilter filter, out TileRect rect)
+        {
+            if (!_isValid)
+            {
+                filter = DeletedGameObjectsFilter.None;
+                rect = TileRect.Empty;
+                return;
+            }
+
+            filter = DeletedGameObjectsFilter;
+            rect = new TileRect(_startTile, _endTile);
+        }
+    }
+}