fix : MixedSolver

app/src/main/java/gui/AnimatedBackground.java

@@ -0,0 +1,28 @@
+package gui;
+
+import imgui.ImGui;
+import imgui.ImVec2;
+import imgui.flag.ImGuiWindowFlags;
+
+public class AnimatedBackground {
+
+	private float backgroundOffset = 0;
+
+	public AnimatedBackground() {
+
+	}
+
+	public void render() {
+		backgroundOffset += ImGui.getIO().getDeltaTime() / 10.0f * Options.BackgroundSpeed;
+		var displaySize = ImGui.getIO().getDisplaySize();
+		ImGui.setNextWindowPos(new ImVec2(0.0f, 0.0f));
+		ImGui.setNextWindowSize(displaySize);
+		ImGui.begin("Background", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove
+				| ImGuiWindowFlags.NoSavedSettings | ImGuiWindowFlags.NoBackground
+				| ImGuiWindowFlags.NoBringToFrontOnFocus | ImGuiWindowFlags.NoInputs);
+		ImGui.image(Images.BACKGROUND, displaySize, new ImVec2(backgroundOffset, backgroundOffset),
+				new ImVec2(1.0f + backgroundOffset, 1.0f + backgroundOffset));
+		ImGui.end();
+	}
+
+}

app/src/main/java/gui/Options.java

@@ -3,5 +3,6 @@ package gui;
 public class Options {
 
 	public static Symbols Symboles = Symbols.Numbers;
+	public static float BackgroundSpeed = 1.0f;
 
 }

app/src/main/java/gui/menu/OptionsMenu.java

@@ -8,6 +8,7 @@ import imgui.type.ImInt;
 public class OptionsMenu extends BaseView {
 
 	private ImInt currentValue = new ImInt();
+	private float backgroundSpeed[] = new float[]{Options.BackgroundSpeed};
 
 	public OptionsMenu(StateMachine stateMachine) {
 		super(stateMachine);
@@ -19,6 +20,9 @@ public class OptionsMenu extends BaseView {
 		if(ImGui.combo("Jeu de symboles", currentValue, Symbols.getSymbolsNames())){
 			Options.Symboles = Symbols.values()[currentValue.get()];
 		}
+		if(ImGui.sliderFloat("Vitesse d'animation de l'arrière plan", backgroundSpeed, 0.0f, 10.0f)){
+			Options.BackgroundSpeed = backgroundSpeed[0];
+		}
 		renderReturnButton();
 	}
 

app/src/main/java/gui/menu/StateMachine.java

@@ -2,7 +2,7 @@ package gui.menu;
 
 import java.util.Stack;
 
-import gui.Images;
+import gui.AnimatedBackground;
 import imgui.ImGui;
 import imgui.ImVec2;
 import imgui.flag.ImGuiKey;
@@ -11,9 +11,11 @@ import imgui.flag.ImGuiWindowFlags;
 public class StateMachine {
 
 	private final Stack<BaseView> menus;
+	private final AnimatedBackground background;
 
 	public StateMachine() {
 		this.menus = new Stack<>();
+		this.background = new AnimatedBackground();
 	}
 
 	public void clear() {
@@ -40,12 +42,7 @@ public class StateMachine {
 
 	public void render() {
 		var displaySize = ImGui.getIO().getDisplaySize();
-		ImGui.setNextWindowPos(new ImVec2(0.0f, 0.0f));
-		ImGui.setNextWindowSize(displaySize);
-		ImGui.begin("Background", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove
-		| ImGuiWindowFlags.NoSavedSettings | ImGuiWindowFlags.NoBackground  | ImGuiWindowFlags.NoBringToFrontOnFocus | ImGuiWindowFlags.NoInputs);
-		ImGui.image(Images.BACKGROUND, displaySize, new ImVec2(0, 0));
-		ImGui.end();
+		this.background.render();
 		ImGui.setNextWindowPos(new ImVec2(0.0f, 0.0f));
 		ImGui.setNextWindowSize(displaySize);
 		ImGui.begin("##Main Window", null, ImGuiWindowFlags.NoDecoration | ImGuiWindowFlags.NoMove

app/src/main/java/sudoku/solver/MixedSolver.java

@@ -17,8 +17,6 @@ public class MixedSolver implements Solver{
      * backtracking.
      *
      * @param doku MultiDoku, MultiDoku à résoudre.
-     * @param rand Random, pour tester aléatoirement les symboles, lors du
-     *             backtracking.
      * @return boolean, valant true si le MultiDoku est résolu, false sinon.
      */
 	@Override
@@ -40,29 +38,20 @@ public class MixedSolver implements Solver{
             return true;
         }
 
-        List<Cell> cellsToFill = doku.getEmptyCells();
-        if (cellsToFill.isEmpty()) {
+        Cell cellToFill = doku.getFirstEmptyCell();
+        if (cellToFill == null) {
             return false;
         }
 
-        // Règles de déduction
-        for (Cell cellToFill : cellsToFill) {
-
-            List<Integer> possibleSymbols = cellToFill.getPossibleSymbols();
-            if (possibleSymbols.size() != 1) {
-                continue;
-            }
-
-            cellToFill.setSymbolIndex(possibleSymbols.getFirst());
-
-            return this.solve(doku);
-        }
-
-        // Si ça ne marche pas
-        // On fait du backtracking
-        Cell cellToFill = doku.getRandomEmptyCell(rand);
         List<Integer> possibleSymbols = cellToFill.getPossibleSymbols();
 
+        if (possibleSymbols.size() == 1) {
+            cellToFill.setSymbolIndex(possibleSymbols.getFirst());
+            if (this.solve(doku)) {
+                return true;
+            }
+        }
+
         while (!possibleSymbols.isEmpty()) {
             int nextPossibleSymbolIndex = rand.nextInt(possibleSymbols.size());
             int nextSymbol = possibleSymbols.get(nextPossibleSymbolIndex);
@@ -71,9 +60,9 @@ public class MixedSolver implements Solver{
             if (this.solve(doku)) {
                 return true;
             }
-
             cellToFill.setSymbolIndex(Cell.NOSYMBOL);
             possibleSymbols.remove(nextPossibleSymbolIndex);
+
         }
 
         return false;

app/src/main/java/sudoku/structure/SudokuFactory.java

@@ -145,7 +145,7 @@ public class SudokuFactory {
 			cellsThatCanBeEmptied.remove(cellToEmpty);
 		}
 
-		return newDokuFromFilledOne(doku, --nbCellsToEmpty, solver);
+		return false;
 	}
 
 	/**
@@ -181,21 +181,22 @@ public class SudokuFactory {
 	 * @param sudoku2 Sudoku, second sudoku à connecter.
 	 * @param offset  Coordinate, décalage entre les deux Sudokus.
 	 */
-	private static void linkSquareSudokus(Sudoku sudoku1, Sudoku sudoku2, Coordinate offset) {
+	private static void linkRectangleSudokus(Sudoku sudoku1, Sudoku sudoku2, Coordinate offset) {
 		int blockWidth = sudoku1.getBlockWidth();
-		for (int dx = 0; dx < blockWidth; dx++) {
+		int blockHeight = sudoku1.getSize() / blockWidth;
+		for (int dx = 0; dx < blockHeight; dx++) {
 			for (int dy = 0; dy < blockWidth; dy++) {
 				int block1X = dx + offset.getX();
 				int block1Y = dy + offset.getY();
 				int block2X = dx;
 				int block2Y = dy;
 
-				if ((block1X < blockWidth) && (block1X >= 0) && (block1Y >= 0) && (block1Y < blockWidth)) {
-					Block block1 = sudoku1.getBlocks().get(block1Y * blockWidth + block1X);
-					Block block2 = sudoku2.getBlocks().get(block2Y * blockWidth + block2X);
+				if ((block1X < blockHeight) && (block1X >= 0) && (block1Y >= 0) && (block1Y < blockWidth)) {
+					Block block1 = sudoku1.getBlocks().get(block1Y * blockHeight + block1X);
+					Block block2 = sudoku2.getBlocks().get(block2Y * blockHeight + block2X);
 
 					// on remplace le bloc
-					sudoku2.getBlocks().set(block2Y * blockWidth + block2X, block1);
+					sudoku2.getBlocks().set(block2Y * blockHeight + block2X, block1);
 					block1.getSudokus().add(sudoku2);
 
 					// on remplace les cellules
@@ -231,10 +232,10 @@ public class SudokuFactory {
 		Sudoku sudoku4 = createSquareSudoku(size, constraints);
 		Sudoku sudoku5 = createSquareSudoku(size, constraints);
 
-		linkSquareSudokus(sudoku1, sudoku2, new Coordinate(1 - size, 1 - size));
-		linkSquareSudokus(sudoku1, sudoku3, new Coordinate(size - 1, 1 - size));
-		linkSquareSudokus(sudoku1, sudoku4, new Coordinate(1 - size, size - 1));
-		linkSquareSudokus(sudoku1, sudoku5, new Coordinate(size - 1, size - 1));
+		linkRectangleSudokus(sudoku1, sudoku2, new Coordinate(1 - size, 1 - size));
+		linkRectangleSudokus(sudoku1, sudoku3, new Coordinate(size - 1, 1 - size));
+		linkRectangleSudokus(sudoku1, sudoku4, new Coordinate(1 - size, size - 1));
+		linkRectangleSudokus(sudoku1, sudoku5, new Coordinate(size - 1, size - 1));
 
 		return new MultiDoku(Arrays.asList(sudoku1, sudoku2, sudoku3, sudoku4, sudoku5));
 	}
@@ -263,10 +264,10 @@ public class SudokuFactory {
 		Sudoku sudoku4 = createRectangleSudoku(width, height, constraints);
 		Sudoku sudoku5 = createRectangleSudoku(width, height, constraints);
 
-		linkSquareSudokus(sudoku1, sudoku2, new Coordinate(1 - width, 1 - height));
-		linkSquareSudokus(sudoku1, sudoku3, new Coordinate(width - 1, 1 - height));
-		linkSquareSudokus(sudoku1, sudoku4, new Coordinate(1 - width, height - 1));
-		linkSquareSudokus(sudoku1, sudoku5, new Coordinate(width - 1, height - 1));
+		linkRectangleSudokus(sudoku1, sudoku2, new Coordinate(1 - height, 1 - width));
+		linkRectangleSudokus(sudoku1, sudoku3, new Coordinate(height - 1, 1 - width));
+		linkRectangleSudokus(sudoku1, sudoku4, new Coordinate(1 - height, width - 1));
+		linkRectangleSudokus(sudoku1, sudoku5, new Coordinate(height - 1, width - 1));
 
 		return new MultiDoku(Arrays.asList(sudoku1, sudoku2, sudoku3, sudoku4, sudoku5));
 	}
@@ -276,9 +277,6 @@ public class SudokuFactory {
 		solver.solve(doku);
 		int nbCellsToEmpty = (int) (difficulty.getFactor() * doku.getNbCells());
 		boolean successfull = newDokuFromFilledOne(doku, nbCellsToEmpty, solver);
-		if (!successfull) {
-			throw new Exception("Canno't create this doku with this difficulty");
-		}
 		doku.setFilledCellsImmutable();
 	}