flutter_2048/lib/views/blocks.dart

import 'package:flutter/material.dart';
import 'package:flutter_2048/service/block_factory.dart';
import 'package:flutter_2048/model/block_info.dart';
import 'package:flutter_2048/store/game_state.dart';
import 'package:flutter_2048/utils/screen.dart';
import 'package:flutter_redux/flutter_redux.dart';

class Blocks extends StatefulWidget {
  @override
  _BlocksState createState() => _BlocksState();
}

class _BlocksState extends State<Blocks> with TickerProviderStateMixin {
  
  @override
  Widget build(BuildContext context) {
    return StoreConnector<GameState, BlocksProps>(
      converter: (store) => BlocksProps(
            data: store.state.data,
            mode: store.state.mode,
            padding: Screen.getBorderWidth(store.state.mode),
          ),
      builder: (context, props) {
        var blockFactory = BlockFactory(this, props.mode);
        blockFactory.play();
        return Center(
          child: Container(
            width: Screen.stageWidth,
            height: Screen.stageWidth,
            padding: EdgeInsets.fromLTRB(props.padding, props.padding, 0, 0),
            child: Stack(
              fit: StackFit.expand,
              children: getBlocks(blockFactory, props),
            ),
          ),
        );
      },
    );
  }

  getBlocks(BlockFactory blockFactory, BlocksProps props) {
    var blocks = <Widget>[];
    props.data.forEach((row) {
      row.forEach((block) {
        if (block.value != 0) {
          blocks.add(blockFactory.create(block));
        }
      });
    });
    return blocks;
  }
}

class BlocksProps {
  int mode;
  double padding;
  List<List<BlockInfo>> data;

  BlocksProps({required this.padding, required this.mode, required this.data});
}