public virtual void ClearPreview()
{
if (!(this.m_LastGrid == null))
{
BoundsInt?lastBounds = this.m_LastBounds;
if (lastBounds.HasValue && !(this.m_LastBrushTarget == null))
{
GridBrushBase.Tool?lastTool = this.m_LastTool;
if (lastTool.HasValue)
{
Tilemap component = this.m_LastBrushTarget.GetComponent <Tilemap>();
if (component != null)
{
GridBrushBase.Tool?lastTool2 = this.m_LastTool;
if (lastTool2.HasValue)
{
GridBrushBase.Tool value = lastTool2.Value;
if (value != GridBrushBase.Tool.FloodFill)
{
if (value != GridBrushBase.Tool.Box)
{
if (value == GridBrushBase.Tool.Paint)
{
foreach (Vector3Int current in this.m_LastBounds.Value.allPositionsWithin)
{
GridBrushEditor.ClearTilemapPreview(component, current);
}
}
}
else
{
Vector3Int position = this.m_LastBounds.Value.position;
Vector3Int a = position + this.m_LastBounds.Value.size;
BoundsInt boundsInt = new BoundsInt(position, a - position);
foreach (Vector3Int current2 in boundsInt.allPositionsWithin)
{
GridBrushEditor.ClearTilemapPreview(component, current2);
}
}
}
else
{
component.ClearAllEditorPreviewTiles();
}
}
}
this.m_LastBrushTarget = null;
this.m_LastGrid = null;
this.m_LastBounds = null;
this.m_LastTool = null;
}
}
}
}
public override void OnPaintSceneGUI(GridLayout gridLayout, GameObject brushTarget, BoundsInt position, GridBrushBase.Tool tool, bool executing)
{
BoundsInt position2 = position;
bool flag = false;
if (Event.current.type == EventType.Layout)
{
int hash = GridBrushEditor.GetHash(gridLayout, brushTarget, position, tool, this.brush);
flag = (hash != this.m_LastPreviewRefreshHash);
if (flag)
{
this.m_LastPreviewRefreshHash = hash;
}
}
if (tool == GridBrushBase.Tool.Move)
{
if (flag && executing)
{
this.ClearPreview();
this.PaintPreview(gridLayout, brushTarget, position.min);
}
}
else if (tool == GridBrushBase.Tool.Paint || tool == GridBrushBase.Tool.Erase)
{
if (flag)
{
this.ClearPreview();
if (tool != GridBrushBase.Tool.Erase)
{
this.PaintPreview(gridLayout, brushTarget, position.min);
}
}
position2 = new BoundsInt(position.min - this.brush.pivot, this.brush.size);
}
else if (tool == GridBrushBase.Tool.Box)
{
if (flag)
{
this.ClearPreview();
this.BoxFillPreview(gridLayout, brushTarget, position);
}
}
else if (tool == GridBrushBase.Tool.FloodFill)
{
if (flag)
{
this.ClearPreview();
this.FloodFillPreview(gridLayout, brushTarget, position.min);
}
}
base.OnPaintSceneGUI(gridLayout, brushTarget, position2, tool, executing);
}
public virtual void BoxFillPreview(GridLayout gridLayout, GameObject brushTarget, BoundsInt position)
{
if (brushTarget != null)
{
Tilemap component = brushTarget.GetComponent <Tilemap>();
if (component != null)
{
foreach (Vector3Int current in position.allPositionsWithin)
{
Vector3Int vector3Int = current - position.min;
GridBrush.BrushCell brushCell = this.brush.cells[this.brush.GetCellIndexWrapAround(vector3Int.x, vector3Int.y, vector3Int.z)];
if (brushCell.tile != null)
{
GridBrushEditor.SetTilemapPreviewCell(component, current, brushCell.tile, brushCell.matrix, brushCell.color);
}
}
}
}
this.m_LastGrid = gridLayout;
this.m_LastBounds = new BoundsInt?(position);
this.m_LastBrushTarget = brushTarget;
this.m_LastTool = new GridBrushBase.Tool?(GridBrushBase.Tool.Box);
}
public virtual void PaintPreview(GridLayout gridLayout, GameObject brushTarget, Vector3Int position)
{
Vector3Int vector3Int = position - this.brush.pivot;
Vector3Int a = vector3Int + this.brush.size;
BoundsInt value = new BoundsInt(vector3Int, a - vector3Int);
if (brushTarget != null)
{
Tilemap component = brushTarget.GetComponent <Tilemap>();
foreach (Vector3Int current in value.allPositionsWithin)
{
Vector3Int brushPosition = current - vector3Int;
GridBrush.BrushCell brushCell = this.brush.cells[this.brush.GetCellIndex(brushPosition)];
if (brushCell.tile != null && component != null)
{
GridBrushEditor.SetTilemapPreviewCell(component, current, brushCell.tile, brushCell.matrix, brushCell.color);
}
}
}
this.m_LastGrid = gridLayout;
this.m_LastBounds = new BoundsInt?(value);
this.m_LastBrushTarget = brushTarget;
this.m_LastTool = new GridBrushBase.Tool?(GridBrushBase.Tool.Paint);
}