import 'dart:async';
import 'dart:math';

import 'package:flutter/material.dart';
import 'package:testmoduled/gameOver.dart';
import 'package:testmoduled/main.dart';
import 'dart:ui';

import 'package:testmoduled/ranking.dart';
import 'package:testmoduled/username.dart';

late Offset playerOffset;

int mkg = 0;
int fg = 0;
int pf = 0;
int fish = 0;
int gt = 0;



class Piece{
  late int score;
  late String assets;
  late Offset offset;
  bool alive =true;
  Piece(this.score,this.assets,this.offset);
}


class Game extends StatefulWidget {
  const Game({super.key});

  @override
  State<Game> createState() => _GameState();
}

class _GameState extends State<Game>  with TickerProviderStateMixin{
  late int live;
  late int score;
  late int duration;
  late Timer timer;
  bool isPause =false;
  late AnimationController controller;
  late List<Piece> pieces;
  late double speed;
  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    resetGame();
  }

  void resetGame(){
    live = 3;
    score = 0;
    duration = 0;
    speed = 0.5;
    pieces = [];
    playerOffset = Offset(phoneWidth-100, phoneHeight-110);
    timer = Timer.periodic(Duration(seconds: 1), (_) {
      duration++;
      String randomString = dishList[Random().nextInt(dishList.length)];
      pieces.add(Piece(
        mapData[randomString]["score"],
        mapData[randomString]["assets"],
        Offset(Random().nextInt((phoneWidth-160).toInt())+80, 300)
      ));
      setState(() {

      });
    });
    controller = AnimationController(vsync: this,duration: Duration(seconds: 1))
    ..addListener(a)
    ..repeat()
    ;
  }

  void a(){
    myDown();
    upDate();
    gameOver();
    setState(() {
    });
  }


  void myDown(){
    for (var piece in pieces) {
      piece.offset+=Offset(0,speed);
      if(piece.offset.dy>phoneHeight){
        piece.alive = false;
        if(piece.score>0){
          live--;
        }
      }
    }
    setState(() {

    });
  }

  void gameOver(){
    if(live==0){
      controller.dispose();
      timer.cancel();
      rankList.add(ScoreModal(score, duration, textEditingController.value.text));
      Navigator.of(context).push(MaterialPageRoute(builder: (c)=>GameOver()));
    }

  }

  void upDate(){
    pieces.removeWhere((element) => !element.alive);
    speed = (score~/100).toDouble()+0.5;
    // if(score%50==0){
    //   live++;
    // }
    for (var piece in pieces) {
      if((piece.offset.dy-playerOffset.dy).abs()<65 && (piece.offset.dx-playerOffset.dx).abs()<65){
        piece.alive =false;
        score+=piece.score;
        if(piece.score==30){
          duration+=30;
        }
        if(piece.score==-20){
          live--;
        }

        switch(piece.score){
          case 10:
            fg++;
          case 20:
            mkg++;
          case 30:
            pf++;
          case -20:
            fish++;
          case -10:
            gt++;
        }


      }
    }
    setState(() {

    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: GestureDetector(
        onPanUpdate: (d){
          if(d.globalPosition.dx>80 && d.globalPosition.dx<phoneWidth-80){
            playerOffset = Offset(d.globalPosition.dx, playerOffset.dy);
          }
          setState(() {

          });
        },
        child: Stack(
          children: [
            //暂停
            Positioned(
                right: 16,top: 16,
                child: GestureDetector(onTap: (){
                  setState(() {
                    isPause = true;
                    controller.stop();
                  });
                },child: Image.asset("lib/assets/stop.png",height: 45,width: 45,))
            ),
            //随即物
            for (var piece in pieces )
              Positioned.fromRect(
                rect: Rect.fromCenter(center: piece.offset, width: 50, height: 50),
                child: Image.asset("lib/assets/${piece.assets}"),
              ),
            //暂停页面
            isPause?buildGamePause():Positioned(left: 0,top: 0,child: SizedBox()),
            Positioned(
              left: 0,right: 0,
              bottom: 0,
              child: Image.asset(
                "lib/assets/game_bg.jpg",
                fit: BoxFit.fill,
                height: 50,
              )
            ),
              Positioned(
                left: 16,
                top: 16,
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Container(
                        height: 30,
                        width: 140,
                        alignment: Alignment.center,
                        decoration: BoxDecoration(
                            image: DecorationImage(image: AssetImage("lib/assets/title_bg.png"),fit: BoxFit.fill)
                        ),
                        child: Row(
                          mainAxisAlignment: MainAxisAlignment.spaceAround,
                          children: [
                            Image.asset("lib/assets/board.png",fit: BoxFit.cover),
                            Text("$score")
                          ],
                        )
                    ),
                    Container(
                      height: 30,
                      width: 100,
                      alignment: Alignment.center,
                      decoration: BoxDecoration(
                        image: DecorationImage(image: AssetImage("lib/assets/title_bg.png"),fit: BoxFit.fill)
                      ),
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.spaceAround,
                        children: [
                          Image.asset("lib/assets/life.png",fit: BoxFit.cover),
                          Text("X $live")
                        ],
                      )
                    ),
                    Text("Time: ${(duration~/60).toString().padLeft(2,"0")}:${(duration%60).toString().padLeft(2,"0")}",style: TextStyle(fontSize: 16,fontWeight: FontWeight.w500,color: Colors.black87),)
                  ],
                )
              ),

            Positioned.fromRect(
                rect: Rect.fromCenter(center: playerOffset, width: 120, height: 120),
                child: Image.asset("lib/assets/player.png",fit: BoxFit.fill,))


            
          ],
        ),
      )
    );
  }

  Widget buildGamePause(){
    return Container(
      color: Colors.black54,
      child: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text("Game Pause",style: TextStyle(fontSize: 22,fontWeight: FontWeight.bold,color: Colors.white),),
            GestureDetector(onTap: (){
              setState(() {
                isPause = false;
                controller.repeat();
              });
            },child: Image.asset("lib/assets/play.png",height: 50,width: 50,fit: BoxFit.fill,)),
            SizedBox(height: 16,),
            GestureDetector(onTap: (){
              resetGame();
              isPause = false;
              setState(() {

              });
            },child: Image.asset("lib/assets/restart.png",height: 50,width: 50,fit: BoxFit.fill,)),
            SizedBox(height: 16,),
            GestureDetector(onTap: ()=>Navigator.of(context).push(MaterialPageRoute(builder: (c)=>StartGame())),child: Image.asset("lib/assets/out.png",height: 50,width: 50,fit: BoxFit.fill,)),


          ],
        )
      )
    );
  }



}