fin exo6

lib/Plateau.dart

@@ -3,19 +3,6 @@ import 'package:flutter/material.dart';
 
 import 'Tile.dart';
 
-class Plateau{
-  List<Tile> listTile;
-  double size;
-
-  Plateau({this.listTile,this.size});
-
-  List<Tile> getListTile(){
-    return listTile;
-  }
-}
-
-int size=5;
-
 class DisplayPlateauWidget extends StatefulWidget {
   @override
   _DisplayPlateauWidgetState createState() => _DisplayPlateauWidgetState();
@@ -50,7 +37,7 @@ class _DisplayPlateauWidgetState extends State<DisplayPlateauWidget> {
                       onChanged: (double value) {
                         setState(() {_currentSliderValue = value;});
                       }
-                  ),
+                    ),
                   ),
                 ]
             ),
@@ -82,9 +69,9 @@ class _DisplayPlateauWidgetState extends State<DisplayPlateauWidget> {
     for(double i=-1.0;i<=1.0;){
       for(double j=-1.0;j<=1.0;){
         res.add(new Tile(imageURL: 'https://picsum.photos/512/1024', alignment: Alignment(j, i),size: size));
-        j+=(1/((size-1)/2));
+        j+=(2/(size-1));
       }
-      i+=(1/((size-1)/2));
+      i+=(2/(size-1));
     }
     return res;
   }

lib/exo6.dart

 import 'package:flutter/material.dart';
-import 'dart:math' as math;
-
-// ==============
-// Models
-// ==============
-
-math.Random random = new math.Random();
 
 class Tile {
   Color color;
@@ -14,14 +7,11 @@ class Tile {
   Tile(this.index,this.color);
 }
 
-// ==============
-// Widgets
-// ==============
-
 class TileWidget extends StatelessWidget {
-  final Tile tile;
+  Tile tile;
+  bool isUsable=false;
 
-  TileWidget(this.tile);
+  TileWidget(this.tile,this.isUsable);
 
   @override
   Widget build(BuildContext context) {
@@ -39,19 +29,33 @@ class TileWidget extends StatelessWidget {
   }
 }
 
-int emptyIndex=0;
+BoxDecoration myBoxDecoration(bool isUsable) {
+  BoxDecoration res=BoxDecoration();
+  if(isUsable){
+    res= BoxDecoration(
+      border: Border.all(
+        color: Colors.red,
+        width: 5.0,
+      ),
+    );
+  }
+  return res;
+}
 
-List<Widget>createTileWidgets(double slide){
-  List<Widget> tiles = <Widget>[];
+List<TileWidget>createTileWidgets(double slide, int emptyIndex){
+  List<TileWidget> tiles = <TileWidget>[];
   int max=slide.toInt()*slide.toInt();
-  tiles.add(TileWidget(Tile("Vide",Colors.white)));
-  for(int i=0;i<max-1;i++){
-    tiles.add(TileWidget(Tile((i+1).toString(), Colors.grey)));
+  for(int i=0;i<max;i++){
+    if(i==emptyIndex){
+      tiles.add(TileWidget(Tile("Vide",Colors.white),false));
+    }else if(i==emptyIndex+1 || i==emptyIndex+slide.toInt()){
+      tiles.add(TileWidget(Tile((i).toString(), Colors.grey),true));
+    }
+    else tiles.add(TileWidget(Tile((i).toString(), Colors.grey),false));
   }
   return tiles;
 }
 
-
 void main() => runApp(new MaterialApp(home: PositionedTiles()));
 
 class PositionedTiles extends StatefulWidget {
@@ -63,7 +67,8 @@ class PositionedTilesState extends State<PositionedTiles> {
   TextStyle textStyle = TextStyle(fontSize: 16, fontWeight: FontWeight.bold,);
   var appBar= AppBar(title: Text('Exo 6'),);
   double _currentSlideValue=4;
-  List<Widget> tiles=createTileWidgets(4);
+  List<TileWidget> tiles=createTileWidgets(4,0);
+  int emptyIndex=0;
 
   @override
   Widget build(BuildContext context) {
@@ -81,11 +86,14 @@ class PositionedTilesState extends State<PositionedTiles> {
               mainAxisSpacing: 5.0,
             ),
             itemBuilder: (BuildContext context, int index) {
-              return InkWell(
-                child: tiles[index],
-                onTap: (){
-                  swapTiles(index,emptyIndex);
-                },
+              return Container(
+                decoration: myBoxDecoration(tiles[index].isUsable),
+                child:InkWell(
+                  child: tiles[index],
+                  onTap: (){
+                    swapTiles(index,emptyIndex);
+                  },
+                ),
               );
             },
           ),
@@ -99,7 +107,7 @@ class PositionedTilesState extends State<PositionedTiles> {
                   onChanged: (double value) {
                     setState(() {
                       _currentSlideValue = value;
-                      tiles=createTileWidgets(_currentSlideValue);
+                      tiles=createTileWidgets(_currentSlideValue,emptyIndex);
                       //initialSize=_currentSlideValue;
                     });
                   }
@@ -114,10 +122,18 @@ class PositionedTilesState extends State<PositionedTiles> {
 
   swapTiles(int current, int empty) {
     setState(() {
-      //print(current);
+      //RESET bordures des cases apres deplacements
+      for(int i=0;i<tiles.length;i++){
+        if(i!=empty ) tiles[i].isUsable=false;
+      }
+
       if(current==empty+1 && current%_currentSlideValue!=0){
         emptyIndex=current;
         tiles.insert(empty, tiles.removeAt(current));
+       // tiles[empty].isUsable=true;
+       // tiles[empty+2].isUsable=true;
+      //  tiles[empty+_currentSlideValue.toInt()+1].isUsable=true;
+
       }else if(current==empty-1  && empty%_currentSlideValue!=0){
         emptyIndex=current;
         tiles.insert(empty, tiles.removeAt(current));
@@ -131,6 +147,11 @@ class PositionedTilesState extends State<PositionedTiles> {
         tiles.insert(current, tiles.removeAt(empty));
         tiles.insert(empty, tiles.removeAt(current+1));
       }else print("Can't move this");
+
+      if(emptyIndex>=_currentSlideValue) tiles[emptyIndex-_currentSlideValue.toInt()].isUsable=true;
+      if(emptyIndex<(_currentSlideValue*(_currentSlideValue-1))) tiles[emptyIndex+_currentSlideValue.toInt()].isUsable=true;
+      if((emptyIndex+1)%_currentSlideValue!=0)tiles[emptyIndex+1].isUsable=true;
+      if(emptyIndex%_currentSlideValue!=0)tiles[emptyIndex-1].isUsable=true;
     });
   }