/// <summary>
/// Clears the selected tile(s) bitmap(s), not the tile id
/// </summary>
private void mnuClear_Click(object sender, EventArgs e)
{
// If targets are empty, return
if (_targets == null)
{
return;
}
// Panel changed
PanelChanged();
// Get tile ids
int[] tiles = _targets.ToArray();
// Iterate through tiles
foreach (int tile in tiles)
{
// If the tile is empty, continue
if (_tiles[tile] == null)
{
continue;
}
// Create a blank dummy tile
Bitmap image = new Bitmap(_tiles[tile].Width, _tiles[tile].Height);
image.Tag = (int)_tiles[tile].Tag;
// Clear the tile
_tiles[tile].Dispose();
_tiles[tile] = image;
}
// Reset selection values
ResetSelection();
// Update backbuffer
UpdateBackBuffer();
}
/// <summary>
/// Swaps tiles from the selection grid
/// </summary>
private void SwapTiles(bool ignoreUpdate)
{
// If the targets or swaps grids are empty, return
if (_targets == null || _swaps == null)
{
return;
}
// Get tile arrays
int[] targets = _targets.ToArray();
int[] swaps = _swaps.ToArray();
// If the swaps are the same as the targets, return
if (swaps[0] == targets[0])
{
return;
}
// Variables for correct swapping order
int index = 0;
int amount = 1;
int count = targets.Length;
// If the swap origin is less than the target origin
if (swaps[0] < targets[0])
{
// Iterate backwards for the proper ordering
amount = -1;
count = -1;
index = targets.Length - 1;
}
// If not ignoring the update and there are listeners, the panel changed
if (!ignoreUpdate && PanelChanged != null)
{
PanelChanged();
}
// Iterate through tiles
for (int i = index; i != count; i += amount)
{
// New bitmaps
Bitmap target = null;
Bitmap swap = null;
int targetId = targets[i];
int swapId = swaps[i];
// If the tile is not empty, copy it
if (_tiles[swaps[i]] != null)
{
swap = (Bitmap)_tiles[swaps[i]].Clone();
swap.Tag = (int)_tiles[swaps[i]].Tag;
_tiles[swaps[i]].Dispose();
}
// If the tile is not empty, copy it
if (_tiles[targets[i]] != null)
{
target = (Bitmap)_tiles[targets[i]].Clone();
target.Tag = (int)_tiles[targets[i]].Tag;
_tiles[targets[i]].Dispose();
}
// Swap tiles
_tiles[targets[i]] = swap;
_tiles[swaps[i]] = target;
}
// Reset selection
ResetSelection();
// Redraw backbuffer
if (!ignoreUpdate)
{
UpdateBackBuffer();
}
}