protected override Vector2Int ScreenToGrid(Vector2 screenPosition)
{
if (tilemap != null)
{
var transform = tilemap.transform;
Plane plane = new Plane(GetGridForward(tilemap), transform.position);
Vector3Int cell = LocalToGrid(tilemap, GridEditorUtility.ScreenToLocal(transform, screenPosition, plane));
return(new Vector2Int(cell.x, cell.y));
}
if (grid != null)
{
Vector3Int cell = LocalToGrid(grid, GridEditorUtility.ScreenToLocal(gridTransform, screenPosition, GetGridPlane(grid)));
return(new Vector2Int(cell.x, cell.y));
}
return(Vector2Int.zero);
}
private void DuringSceneGui(SceneView sceneView)
{
Event evt = Event.current;
if (evt.type != EventType.DragUpdated && evt.type != EventType.DragPerform && evt.type != EventType.DragExited && evt.type != EventType.Repaint)
{
return;
}
Grid activeGrid = GetActiveGrid();
if (activeGrid == null || DragAndDrop.objectReferences.Length == 0)
{
return;
}
Vector3 localMouse = GridEditorUtility.ScreenToLocal(activeGrid.transform, evt.mousePosition);
Vector3Int mouseGridPosition = activeGrid.LocalToCell(localMouse);
switch (evt.type)
{
//TODO: Cache this
case EventType.DragUpdated:
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
List <TileBase> tiles = TileDragAndDrop.GetValidTiles(DragAndDrop.objectReferences);
instance.m_HoverData = TileDragAndDrop.CreateHoverData(null, null, tiles);
if (instance.m_HoverData.Count > 0)
{
Event.current.Use();
GUI.changed = true;
}
break;
case EventType.DragPerform:
if (instance.m_HoverData.Count > 0)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
var tileSheet = TileDragAndDrop.ConvertToTileSheet(instance.m_HoverData);
Tilemap tilemap = GetOrCreateActiveTilemap();
tilemap.ClearAllEditorPreviewTiles();
int i = 0;
foreach (KeyValuePair <Vector2Int, TileDragAndDropHoverData> item in instance.m_HoverData)
{
Vector3Int position = new Vector3Int(mouseGridPosition.x + item.Key.x, mouseGridPosition.y + item.Key.y, 0);
tilemap.SetTile(position, tileSheet[i++]);
tilemap.SetTransformMatrix(position, Matrix4x4.TRS(item.Value.positionOffset - tilemap.tileAnchor, Quaternion.identity, Vector3.one));
}
instance.m_HoverData = null;
GUI.changed = true;
Event.current.Use();
}
break;
case EventType.Repaint:
if (instance.m_HoverData != null)
{
Tilemap map = Selection.activeGameObject.GetComponentInParent <Tilemap>();
if (map != null)
{
map.ClearAllEditorPreviewTiles();
}
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
foreach (KeyValuePair <Vector2Int, TileDragAndDropHoverData> item in instance.m_HoverData)
{
Vector3Int gridPos = mouseGridPosition + new Vector3Int(item.Key.x, item.Key.y, 0);
if (item.Value.hoverObject is TileBase)
{
TileBase tile = item.Value.hoverObject as TileBase;
if (map != null)
{
map.SetEditorPreviewTile(gridPos, tile);
}
}
}
}
break;
}
if (instance.m_HoverData != null && (
Event.current.type == EventType.DragExited ||
Event.current.type == EventType.KeyDown && Event.current.keyCode == KeyCode.Escape))
{
if (instance.m_HoverData.Count > 0)
{
Tilemap map = Selection.activeGameObject.GetComponentInParent <Tilemap>();
if (map != null)
{
map.ClearAllEditorPreviewTiles();
}
Event.current.Use();
}
instance.m_HoverData = null;
}
}
