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Hwan-seokHwan-seok
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feat: Add convenience method for getting images in each layer (flame-engine#66)
This PR adds the convenience method to the TiledMap that gets all TiledImage in the specific layer. If the layer is Group, the method gets all images in the group recursively.
1 parent d71d0c8 commit 1d3043f

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+182
-18
lines changed

‎packages/tiled/lib/src/tiled_map.dart

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@@ -219,6 +219,33 @@ class TiledMap {
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return imageSet.toList();
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}
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List<TiledImage> collectImagesInLayer(Layer layer) {
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if (layer is ImageLayer) {
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return [layer.image];
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} else if (layer is Group) {
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return layer.layers.expand(collectImagesInLayer).toList();
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} else if (layer is TileLayer) {
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const emptyTile = 0;
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final rows = layer.tileData ?? <List<Gid>>[];
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final gids = rows
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.expand((row) => row.map((gid) => gid.tile))
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.where((gid) => gid != emptyTile)
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.toSet();
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return gids
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.map(tilesetByTileGId)
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.toSet() // The different gid can be in the same tileset
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.expand(
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(tileset) =>
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[tileset.image, ...tileset.tiles.map((tile) => tile.image)],
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)
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.whereNotNull()
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.toList();
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}
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return [];
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}
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/// Finds the first layer with the matching [name], or throw an
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/// [ArgumentError] if one cannot be found.
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/// Will search recursively through [Group] children.

‎packages/tiled/pubspec.yaml

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@@ -14,6 +14,7 @@ dependencies:
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xml: ^6.1.0
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dev_dependencies:
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dartdoc: ^4.1.0
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flame_lint: ^0.1.2
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test: any
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dartdoc: ^6.0.1
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flame_lint: ^0.2.0
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flutter_test:
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sdk: flutter

‎packages/tiled/test/complexmap_infinite_test.dart

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@@ -1,6 +1,6 @@
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import 'dart:io';
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3-
import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

‎packages/tiled/test/image_layer_test.dart

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@@ -1,6 +1,6 @@
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import 'dart:io';
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

‎packages/tiled/test/isometric_staggered_test.dart

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@@ -1,6 +1,6 @@
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import 'dart:io';
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

‎packages/tiled/test/isometric_test.dart

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@@ -1,6 +1,6 @@
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import 'dart:io';
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

‎packages/tiled/test/layer_test.dart

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@@ -1,8 +1,7 @@
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import 'dart:async';
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import 'dart:io';
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import 'dart:ui';
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

‎packages/tiled/test/map_test.dart

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@@ -1,4 +1,4 @@
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {
@@ -151,6 +151,142 @@ void main() {
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});
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});
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group('Map.collectImagesInLayer', () {
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late TiledMap map;
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setUp(() {
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map = TiledMap(
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width: 2,
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height: 2,
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tileWidth: 8,
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tileHeight: 8,
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layers: [
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TileLayer(
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name: 'tile layer 1',
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width: 2,
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height: 2,
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data: [1, 0, 2, 0],
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),
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Group(
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name: 'group layer 1',
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layers: [
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TileLayer(
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name: 'group - tile layer 1',
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width: 2,
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height: 2,
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data: [1, 2, 3, 0],
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),
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TileLayer(
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name: 'group - tile layer 2',
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width: 2,
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height: 2,
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data: [5, 0, 0, 0],
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),
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],
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),
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ImageLayer(
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name: 'image layer 1',
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image: const TiledImage(source: 'image_layer.png'),
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repeatX: false,
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repeatY: false,
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),
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ObjectGroup(name: 'object layer 1', objects: []),
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TileLayer(
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name: 'tile layer 3 (empty)',
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width: 2,
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height: 2,
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data: [0, 0, 0, 0],
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),
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],
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tilesets: [
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Tileset(
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name: 'TileSet_1',
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image: const TiledImage(source: 'tileset_1.png'),
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firstGid: 1,
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columns: 1,
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tileCount: 2,
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tiles: [
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Tile(localId: 0),
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Tile(localId: 1),
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],
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),
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Tileset(
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name: 'TileSet_2',
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image: const TiledImage(source: 'tileset_2.png'),
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firstGid: 3,
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columns: 1,
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tileCount: 2,
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tiles: [
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Tile(localId: 0),
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Tile(localId: 1),
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],
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),
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Tileset(
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name: 'TileSet_3',
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image: const TiledImage(source: 'tileset_3.png'),
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firstGid: 5,
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columns: 1,
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tileCount: 2,
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tiles: [
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Tile(localId: 0),
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Tile(localId: 1),
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],
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),
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],
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);
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});
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test('gets images only in use on each TileLayer', () {
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final tileLayer1 = map.layerByName('tile layer 1');
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final tileLayer2 = map.layerByName('group - tile layer 1');
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final images1 = map.collectImagesInLayer(tileLayer1);
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final images2 = map.collectImagesInLayer(tileLayer2);
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expect(images1, hasLength(1));
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expect(images1[0].source, equals('tileset_1.png'));
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expect(images2, hasLength(2));
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expect(images2[0].source, equals('tileset_1.png'));
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expect(images2[1].source, equals('tileset_2.png'));
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});
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test('gets no image if TileLayer is empty', () {
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final tileLayer = map.layerByName('tile layer 3 (empty)');
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final images = map.collectImagesInLayer(tileLayer);
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expect(images, hasLength(0));
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});
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test('gets all images recursively in the Group', () {
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final tileLayerInsideGroup = map.layerByName('group layer 1');
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final images3 = map.collectImagesInLayer(tileLayerInsideGroup);
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expect(images3, hasLength(3));
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expect(images3[0].source, equals('tileset_1.png'));
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expect(images3[1].source, equals('tileset_2.png'));
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expect(images3[2].source, equals('tileset_3.png'));
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});
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test('gets a image in the ImageLayer', () {
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final imageLayer = map.layerByName('image layer 1');
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final images = map.collectImagesInLayer(imageLayer);
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expect(images, hasLength(1));
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expect(images[0].source, equals('image_layer.png'));
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});
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test('gets no image in the ObjectLayer', () {
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final imageLayer = map.layerByName('object layer 1');
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final images = map.collectImagesInLayer(imageLayer);
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expect(images, hasLength(0));
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});
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});
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group('Map.getTileSet', () {
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late TiledMap map;
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final tileset = Tileset(

‎packages/tiled/test/object_group_test.dart

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import 'dart:io';
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import 'dart:ui';
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

‎packages/tiled/test/overflow_bug_test.dart

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import 'dart:io';
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import 'package:test/test.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:tiled/tiled.dart';
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void main() {

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