hasCollision method

bool hasCollision(T item, MapRectangle boundary)

Checks if an item collides with any existing items in the index.

Uses grid-based lookup to efficiently check only items in nearby cells.

item Item to check for collisions Returns true if collision detected, false otherwise

Implementation

bool hasCollision(T item, MapRectangle boundary) {
  final cells = _getCells(boundary);
  for (final cell in cells) {
    final cellItems = _grid[cell];
    if (cellItems != null) {
      for (final existing in cellItems) {
        if (existing.clashesWith(item)) {
          return true;
        }
      }
    }
  }
  return false;
}