public Edge(CrystalBombDetonator parent, Vector2 a, Vector2 b)
{
Parent = parent;
A = a;
B = b;
Min = new Vector2(Math.Min(A.X, B.X), Math.Min(A.Y, B.Y));
Max = new Vector2(Math.Max(A.X, B.X), Math.Max(A.Y, B.Y));
Normal = (B - A).SafeNormalize();
Perpendicular = -Normal.Perpendicular();
Length = (A - B).Length();
}
// Add a field to the tracker
public void Track(CrystalBombDetonator block)
{
trackedFields.Add(block);
if (tiles == null)
{
levelTileBounds = (Scene as Level).TileBounds;
tiles = new VirtualMap <bool>(levelTileBounds.Width, levelTileBounds.Height, false);
}
for (int xTile = (int)block.X / 8; xTile < (block.Right / 8f); xTile++)
{
for (int yTile = (int)block.Y / 8; yTile < (block.Bottom / 8f); yTile++)
{
tiles[xTile - levelTileBounds.X, yTile - levelTileBounds.Y] = true;
}
}
dirty = true;
}
public void Untrack(CrystalBombDetonator block)
{
trackedFields.Remove(block);
if (trackedFields.Count <= 0)
{
tiles = null;
}
else
{
for (int xTile = (int)block.X / 8; xTile < (block.Right / 8f); xTile++)
{
for (int yTile = (int)block.Y / 8; yTile < (block.Bottom / 8f); yTile++)
{
tiles[xTile - levelTileBounds.X, yTile - levelTileBounds.Y] = false;
}
}
}
dirty = true;
}