void ITilemapToolEnvironment.PerformEditTiles(EditTilemapActionType actionType, Tilemap tilemap, Point2 pos, Grid<bool> brush, ITileDrawSource source, Point2 sourceOffset)
{
Grid<Tile> drawPatch = new Grid<Tile>(brush.Width, brush.Height);
source.FillTarget(drawPatch, sourceOffset);
UndoRedoManager.Do(new EditTilemapAction(
tilemap,
actionType,
pos,
drawPatch,
brush,
this.actionTool.Settings.UseAutoTiling));
}
public EditTilemapAction(Tilemap tilemap, EditTilemapActionType type, Point2 origin, Grid <Tile> newTiles, Grid <bool> editMask, AutoTilePaintMode autoTileMode)
{
if (tilemap == null)
{
throw new ArgumentNullException("tilemap");
}
if (newTiles == null)
{
throw new ArgumentNullException("newTiles");
}
if (editMask == null)
{
throw new ArgumentNullException("editMask");
}
Point2 size = new Point2(newTiles.Width, newTiles.Height);
Point2 margin = Point2.Zero;
// If we'll update neighbouring AutoTiles, we'll need a one tile margin
// to properly support Undo / Redo and painting.
if (autoTileMode == AutoTilePaintMode.Full)
{
margin = new Point2(1, 1);
}
// Extend the editing area by the above margin.
size.X += margin.X * 2;
size.Y += margin.Y * 2;
origin.X -= margin.X;
origin.Y -= margin.Y;
// Clamp the specified editing area to what is actually valid for this tilemap
Point2 clampedOrigin = origin;
Point2 clampedSize = size;
clampedSize.X += Math.Min(clampedOrigin.X, 0);
clampedSize.Y += Math.Min(clampedOrigin.Y, 0);
clampedOrigin.X = MathF.Clamp(clampedOrigin.X, 0, tilemap.Size.X);
clampedOrigin.Y = MathF.Clamp(clampedOrigin.Y, 0, tilemap.Size.Y);
clampedSize.X = MathF.Clamp(clampedSize.X, 0, tilemap.Size.X - clampedOrigin.X);
clampedSize.Y = MathF.Clamp(clampedSize.Y, 0, tilemap.Size.Y - clampedOrigin.Y);
this.tilemap = tilemap;
this.type = type;
this.origin = clampedOrigin;
this.autoTileMode = autoTileMode;
// Copy edited tiles and masking to the operation's tilemap-clamped space
this.newTiles = new Grid <Tile>(clampedSize.X, clampedSize.Y);
this.editMask = new Grid <bool>(clampedSize.X, clampedSize.Y);
this.editMaskAutoTile = new Grid <bool>(clampedSize.X, clampedSize.Y);
newTiles.CopyTo(this.newTiles, margin.X + Math.Min(origin.X, 0), margin.X + Math.Min(origin.Y, 0));
editMask.CopyTo(this.editMask, margin.Y + Math.Min(origin.X, 0), margin.Y + Math.Min(origin.Y, 0));
editMask.CopyTo(this.editMaskAutoTile, margin.Y + Math.Min(origin.X, 0), margin.Y + Math.Min(origin.Y, 0));
// If we're updating neighbouring AutoTiles, expand the AutoTile mask by one
// so we'll properly undo them too, despite not painting them directly.
if (autoTileMode == AutoTilePaintMode.Full)
{
ExpandMask(this.editMaskAutoTile);
}
}
