From ec7f3568e502f2dfefc8a0dcbedd8f53757e48e1 Mon Sep 17 00:00:00 2001
From: FyloZ <fylozdev@gmail.com>
Date: Mon, 20 Mar 2023 17:41:13 -0400
Subject: [PATCH] Movement logic

---
 .idea/uiDesigner.xml                        | 124 ++++++++++++++++++++
 .idea/workspace.xml                         |  58 ++++++---
 src/main/java/laboratoire4/GameTree.java    |   3 +-
 src/main/java/laboratoire4/Pawn.java        |  58 ++++++++-
 src/main/java/laboratoire4/Pushed.java      |  26 ++++
 src/main/java/laboratoire4/Pusher.java      |  14 +++
 src/main/java/laboratoire4/PusherBoard.java | 108 ++++++++---------
 7 files changed, 312 insertions(+), 79 deletions(-)
 create mode 100644 .idea/uiDesigner.xml
 create mode 100644 src/main/java/laboratoire4/Pushed.java
 create mode 100644 src/main/java/laboratoire4/Pusher.java

diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml
new file mode 100644
index 0000000..2b63946
--- /dev/null
+++ b/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 58f9c6e..4910537 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,12 +4,13 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="41395b4b-3252-492c-a869-5f4dab107186" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/GameTree.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/Player.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+    <list default="true" id="41395b4b-3252-492c-a869-5f4dab107186" name="Changes" comment="MiniMax">
+      <change afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/Pushed.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/Pusher.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/laboratoire4/MiniMax.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/MiniMax.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/laboratoire4/GameTree.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/GameTree.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/laboratoire4/Pawn.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/Pawn.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/laboratoire4/PusherBoard.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/laboratoire4/PusherBoard.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -23,6 +24,13 @@
       </list>
     </option>
   </component>
+  <component name="Git.Settings">
+    <option name="RECENT_BRANCH_BY_REPOSITORY">
+      <map>
+        <entry key="$PROJECT_DIR$" value="alexis" />
+      </map>
+    </option>
+  </component>
   <component name="MacroExpansionManager">
     <option name="directoryName" value="x0367gi2" />
   </component>
@@ -44,19 +52,19 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "SHARE_PROJECT_CONFIGURATION_FILES": "true",
-    "last_opened_file_path": "/home/william/Dev/Projects/Uni/Log320/LOG320_Lab4",
-    "node.js.detected.package.eslint": "true",
-    "node.js.detected.package.tslint": "true",
-    "node.js.selected.package.eslint": "(autodetect)",
-    "node.js.selected.package.tslint": "(autodetect)",
-    "vue.rearranger.settings.migration": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
+    &quot;last_opened_file_path&quot;: &quot;/home/william/Dev/Projects&quot;,
+    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
+    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
+    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
+    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
+    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
   }
-}]]></component>
+}</component>
   <component name="RunManager">
     <configuration name="Client" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
       <option name="MAIN_CLASS_NAME" value="laboratoire4.Client" />
@@ -86,11 +94,25 @@
       <option name="presentableId" value="Default" />
       <updated>1679255648701</updated>
       <workItem from="1679255649975" duration="1223000" />
-      <workItem from="1679261446095" duration="1908000" />
+      <workItem from="1679261446095" duration="1927000" />
+      <workItem from="1679281763874" duration="46000" />
+      <workItem from="1679344371350" duration="3857000" />
     </task>
+    <task id="LOCAL-00001" summary="MiniMax">
+      <created>1679263366439</created>
+      <option name="number" value="00001" />
+      <option name="presentableId" value="LOCAL-00001" />
+      <option name="project" value="LOCAL" />
+      <updated>1679263366439</updated>
+    </task>
+    <option name="localTasksCounter" value="2" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="3" />
   </component>
+  <component name="VcsManagerConfiguration">
+    <MESSAGE value="MiniMax" />
+    <option name="LAST_COMMIT_MESSAGE" value="MiniMax" />
+  </component>
 </project>
\ No newline at end of file
diff --git a/src/main/java/laboratoire4/GameTree.java b/src/main/java/laboratoire4/GameTree.java
index 68e88b2..e48283c 100644
--- a/src/main/java/laboratoire4/GameTree.java
+++ b/src/main/java/laboratoire4/GameTree.java
@@ -5,8 +5,7 @@ import java.util.Collection;
 public class GameTree {
     private Node root;
 
-
-    public Node buildTree(){
+    public Node buildTree(PusherBoard board){
         return null;
     }
 
diff --git a/src/main/java/laboratoire4/Pawn.java b/src/main/java/laboratoire4/Pawn.java
index 10bb29e..ddb9768 100644
--- a/src/main/java/laboratoire4/Pawn.java
+++ b/src/main/java/laboratoire4/Pawn.java
@@ -1,8 +1,56 @@
 package laboratoire4;
 
-public enum Pawn {
-    R_PUSHER,
-    R_PUSHED,
-    B_PUSHER,
-    B_PUSHED
+public abstract class Pawn {
+    protected final PawnColor color;
+    protected int col;
+    protected int row;
+
+    public Pawn(PawnColor color, int col, int row) {
+        this.color = color;
+        this.col = col;
+        this.row = row;
+    }
+
+    public PawnColor getColor() {
+        return color;
+    }
+
+    public int getCol() {
+        return col;
+    }
+
+    public int getRow() {
+        return row;
+    }
+
+    public void setCol(int col) {
+        this.col = col;
+    }
+
+    public void setRow(int row) {
+        this.row = row;
+    }
+
+    public abstract boolean isMoveValid(PusherBoard board, PawnMovement movement);
+
+    enum PawnColor {
+        RED,
+        BLACK
+    }
+
+    enum PawnMovement {
+        STRAIGHT(0),
+        LEFT_DIAGONAL(-1),
+        RIGHT_DIAGONAL(1);
+
+        private final int move;
+
+        PawnMovement(int move) {
+            this.move = move;
+        }
+
+        public int getMove() {
+            return move;
+        }
+    }
 }
diff --git a/src/main/java/laboratoire4/Pushed.java b/src/main/java/laboratoire4/Pushed.java
new file mode 100644
index 0000000..3438101
--- /dev/null
+++ b/src/main/java/laboratoire4/Pushed.java
@@ -0,0 +1,26 @@
+package laboratoire4;
+
+public class Pushed extends Pawn {
+    public Pushed(PawnColor color, int col, int row) {
+        super(color, col, row);
+    }
+
+    @Override
+    public boolean isMoveValid(PusherBoard game, PawnMovement movement) {
+        Pawn[][] board = game.getBoard();
+        Pawn pusher = null;
+        Pawn to = board[row + 1][col + movement.getMove()];
+
+        if (col > 0 && movement == PawnMovement.RIGHT_DIAGONAL) {
+            pusher = board[row - 1][col - 1];
+        } else if (col < board.length - 1 && movement == PawnMovement.LEFT_DIAGONAL) {
+            pusher = board[row - 1][col + 1];
+        } else if (movement == PawnMovement.STRAIGHT) {
+            pusher = board[row - 1][col];
+        }
+
+        boolean pusherValid = pusher != null;
+        boolean destinationValid = to == null || to.color != this.color;
+        return pusherValid && destinationValid;
+    }
+}
diff --git a/src/main/java/laboratoire4/Pusher.java b/src/main/java/laboratoire4/Pusher.java
new file mode 100644
index 0000000..2fb430c
--- /dev/null
+++ b/src/main/java/laboratoire4/Pusher.java
@@ -0,0 +1,14 @@
+package laboratoire4;
+
+public class Pusher extends Pawn {
+    public Pusher(PawnColor color, int col, int row) {
+        super(color, col, row);
+    }
+
+    @Override
+    public boolean isMoveValid(PusherBoard game, PawnMovement movement) {
+        Pawn to = game.getBoard()[row + 1][col + movement.getMove()];
+
+        return to == null || to.color != this.color;
+    }
+}
diff --git a/src/main/java/laboratoire4/PusherBoard.java b/src/main/java/laboratoire4/PusherBoard.java
index d6d4319..338ab22 100644
--- a/src/main/java/laboratoire4/PusherBoard.java
+++ b/src/main/java/laboratoire4/PusherBoard.java
@@ -1,57 +1,58 @@
 package laboratoire4;
 
 public class PusherBoard {
-
     private Pawn[][] board;
 
     public PusherBoard() {
         this.newGame();
     }
 
-    public void newGame(){
+    public void newGame() {
         this.board = new Pawn[8][8];
 
-        for(int i = 0 ;i<board.length;i++){
-            board[7][i] = Pawn.B_PUSHER;
-        }
+        // TODO: Construire depuis le serveur
+        for (int i = 0; i < board.length; i++) {
+            for (int j = 0; j < board.length; j++) {
+                Pawn pawn = null;
+                Pawn.PawnColor color = i < board.length / 2 ?
+                        Pawn.PawnColor.RED :
+                        Pawn.PawnColor.BLACK;
 
-        for(int i = 0 ;i<board.length;i++){
-            board[6][i] = Pawn.B_PUSHED;
-        }
+                if (i == 0 || i == board.length - 1) {
+                    pawn = new Pusher(color, i, j);
+                } else if (i == 1 || i == board.length - 2) {
+                    pawn = new Pushed(color, i, j);
+                }
 
-        for(int i = 0 ;i<board.length;i++){
-            board[1][i] = Pawn.R_PUSHED;
-        }
-
-        for(int i = 0 ;i<board.length;i++){
-            board[0][i] = Pawn.R_PUSHER;
+                board[i][j] = pawn;
+            }
         }
     }
 
-    public int move (String move){
+    public int move(String move) {
         //FORMAT ex : D2-D3
         String[] split = move.split("-");
 
-        return move(split[0],split[1]);
+        return move(split[0], split[1]);
     }
 
-    public int move (String from, String to){
+    public int move(String from, String to) {
         //FORMAT ex : from {D2}, to {D3}
         int from_col = (int) from.charAt(0) - 65;
-        int from_row = Integer.parseInt(String.valueOf(from.charAt(1)))-1;
+        int from_row = Integer.parseInt(String.valueOf(from.charAt(1))) - 1;
         int to_col = (int) to.charAt(0) - 65;
-        int to_row = Integer.parseInt(String.valueOf(to.charAt(1)))-1;
+        int to_row = Integer.parseInt(String.valueOf(to.charAt(1))) - 1;
 
         return move(from_col, from_row, to_col, to_row);
     }
 
-    public int move(int from_col, int from_row, int to_col, int to_row){
+    public int move(int from_col, int from_row, int to_col, int to_row) {
         //FORMAT ex : from_col {3}, from_row {2}, to_col {3}, to_row {3}
 
         //System.out.println("Move :" + from_col+""+from_row + "-"+ to_col+""+to_row);
         //System.out.println("Move is valid : " + isValid(from_col,from_row,to_col,to_row));
 
-        if(isValid(from_col,from_row,to_col,to_row)){
+        if (isValid(from_col, from_row, to_col, to_row)) {
             Pawn pawn = this.getBoard()[from_row][from_col];
             //System.out.println("Pawn to move : " + pawn);
             this.getBoard()[from_row][from_col] = null;
@@ -62,54 +63,54 @@ public class PusherBoard {
     }
 
 
-    private boolean isValid(int from_col, int from_row, int to_col, int to_row){
-
+    private boolean isValid(int from_col, int from_row, int to_col, int to_row) {
         Pawn[][] board = this.getBoard();
 
         //out of bound?
-        if((from_col >7 || from_col<0)||((from_row >7 || from_row<0))||((to_col >7 || to_col<0))||((to_row >7 || to_row<0))) return false;
+        if ((from_col > 7 || from_col < 0) || ((from_row > 7 || from_row < 0)) || ((to_col > 7 || to_col < 0)) || ((to_row > 7 || to_row < 0)))
+            return false;
 
         //no pawn to move?
         Pawn pawnToMove = board[from_row][from_col];
-        if(pawnToMove == null) return false;
+        if (pawnToMove == null) return false;
 
         //Pawn at destination is our own pawn?
         Pawn destination = board[to_row][to_col];
         char source_color = pawnToMove.name().charAt(0);
-        if(destination != null){
+        if (destination != null) {
             char destination_color = destination.name().charAt(0);
 
-            if(source_color == destination_color) return false;
+            if (source_color == destination_color) return false;
         }
 
         //Pawn goes back? or move is in valid range?
-        if(source_color == 'R'){
-            if(from_row>to_row) return false;
-            if(from_row+1 != to_row) return false;
-        }else if(source_color == 'B'){
-            if(from_row<to_row) return false;
-            if(from_row-1 != to_row) return false;
+        if (source_color == 'R') {
+            if (from_row > to_row) return false;
+            if (from_row + 1 != to_row) return false;
+        } else if (source_color == 'B') {
+            if (from_row < to_row) return false;
+            if (from_row - 1 != to_row) return false;
         }
 
         //PUSHED is in front a PUSHER?
-        if(pawnToMove.equals(Pawn.B_PUSHED)){
-            if(from_col+1==to_col){
-                if(board[from_row+1][from_col+1] != Pawn.B_PUSHER) return false;
-            }else if(from_col-1==to_col){
-                if(board[from_row-1][from_col+1] != Pawn.B_PUSHER) return false;
-            }else if(from_col==to_col){
-                if(board[from_row+1][from_col] != Pawn.B_PUSHER) return false;
+        if (pawnToMove.equals(Pawn.B_PUSHED)) {
+            if (from_col + 1 == to_col) {
+                return board[from_row + 1][from_col + 1] == Pawn.B_PUSHER;
+            } else if (from_col - 1 == to_col) {
+                return board[from_row - 1][from_col + 1] == Pawn.B_PUSHER;
+            } else if (from_col == to_col) {
+                return board[from_row + 1][from_col] == Pawn.B_PUSHER;
             }
-        }else if(pawnToMove.equals(Pawn.R_PUSHED)){
-            if(from_col+1 == to_col){
-                if(board[from_row+1][from_col-1] != Pawn.R_PUSHER) return false;
-            }else if(from_col-1 == to_col){
-                if(board[from_row-1][from_col-1] != Pawn.R_PUSHER) return false;
-            }else if(from_col == to_col){
-                if(board[from_row-1][from_col] != Pawn.R_PUSHER) return false;
+        } else if (pawnToMove.equals(Pawn.R_PUSHED)) {
+            if (from_col + 1 == to_col) {
+                return board[from_row + 1][from_col - 1] == Pawn.R_PUSHER;
+            } else if (from_col - 1 == to_col) {
+                return board[from_row - 1][from_col - 1] == Pawn.R_PUSHER;
+            } else if (from_col == to_col) {
+                return board[from_row - 1][from_col] == Pawn.R_PUSHER;
             }
         }
-        
+
         return true;
     }
 
@@ -117,13 +118,12 @@ public class PusherBoard {
         return board;
     }
 
-    public void printBoard(){
-
-        for(int i=7; i>=0; i--){
-            for (int j = 0 ; j < this.board.length; j++){
-                if(this.board[i][j] != null){
+    public void printBoard() {
+        for (int i = 7; i >= 0; i--) {
+            for (int j = 0; j < this.board.length; j++) {
+                if (this.board[i][j] != null) {
                     System.out.print(this.board[i][j] + " | ");
-                }else{
+                } else {
                     System.out.print("         | ");
                 }
             }