Change Log #

0.2.0 #

Renamed <Grid>.contains to <Grid>.containsXY:

- if (grid.contains(0, 0)) {
+ if (grid.containsXY(0, 0)) {

Added <Grid>.contains to check if a given element is within the grid, similar to List.contains:
```
if (grid.contains('#')) {
  // ...
}
```
Removed Uint8Grid, in favor of ListGrid.view(List<T>, {int width}):
```
- final grid = Uint8Grid(3, 3);
+ final grid = ListGrid.view(Uint8List(3 * 3), width: 3);
```
This reducs the API surface, and focuses on the key use-case of creating a grid without copying the data: using compact lists as backing storage without generics or codegen.
Added GridIterator, GridIterable and Traversal. These classes provide ways to iterate over the elements of a grid, and to traverse the grid in different directions.

For example, a row-major traversal:
```
for (final element in grid.traverse(rowMajor())) {
  // ...
}
```
See also:
- rowMajor
- drawLine
Added <Grid>.layoutHint and <Grid>.getByIndexUnchecked; these methods allow for more efficient traversal of the grid, by providing a hint about the layout of the grid, and by accessing elements by index without extra bounds checking.

Most users never need to use these methods.

Added Uint8Grid, the first sub-type of TypedDataGrid. A Uint8Grid, like it's counterpart Uint8List, is a grid of unsigned 8-bit integers, which makes it suitable for storing pixel data, tile maps, and other data that can be represented as a grid of 8-bit values.

🎉 Initial release 🎉