luojigou_battle/lib/button/button_controller.dart

import 'dart:math';

import 'package:battle/button/button_color.dart';
import 'package:flutter/animation.dart';
import 'package:flutter/foundation.dart';

import '../data/data.dart';

enum ButtonState { start, stop }

class ButtonInfo {
  Color color;
  int startIndex;
  int endIndex;
  double process;

  ButtonInfo({
    required this.color,
    required this.startIndex,
    required this.endIndex,
    this.process = 0,
  });
}

class ButtonController with ChangeNotifier {
  final TickerProvider vsync;

  ButtonController({required this.vsync}) {
    _animationController = AnimationController(
      upperBound: 6.0,
      vsync: vsync,
      duration: Duration(seconds: 10),
    );

    List<Color> colorList = _generateColorList();
    List<int> startIndex = _generateIntList();
    List<int> endIndex = _generateIntList();

    startButton = List.generate(6, (index) {
      return ButtonInfo(
        color: colorList[index],
        startIndex: startIndex[index],
        endIndex: endIndex[index],
      );
    });

    _animationController.addListener(() {
      int index = _animationController.value ~/ 1;
      double process = _animationController.value % 1.0;

      startButton[index].process = process;

      notifyListeners();
    });
  }

  void start() {
    _animationController.forward();
  }

  void reset() {
    List<Color> colorList = _generateColorList();
    List<int> startIndex = _generateIntList();
    List<int> endIndex = _generateIntList();

    startButton = List.generate(6, (index) {
      return ButtonInfo(
        color: colorList[index],
        startIndex: startIndex[index],
        endIndex: endIndex[index],
      );
    });

    _animationController.forward(from: 0);
  }

  void stop() {
    _animationController.stop();
  }

  late AnimationController _animationController;
  late List<ButtonInfo> startButton = [];

  List<Color> _generateColorList() {
    List<Color> list = List.of(colors);
    var random = Random.secure();
    for (int i = 0; i < 10; i++) {
      int i = random.nextInt(list.length);
      int j = random.nextInt(list.length);

      Color temp = list[i];
      list[i] = list[j];
      list[j] = temp;
    }

    return list;
  }

  List<int> _generateIntList() {
    List<int> list = answers[0].toList();
    var random = Random.secure();
    for (int i = 0; i < 3; i++) {
      int i = random.nextInt(list.length);
      int j = random.nextInt(list.length);

      int temp = list[i];
      list[i] = list[j];
      list[j] = temp;
    }

    return list;
  }
}