implemented saving and loading creatures

README.md

@@ -22,9 +22,8 @@ Visis the [releases page](https://github.com/fazo96/AIrium/releases) to download
 
 ### Controls
 
-- __+__ and __-__ control the zoom of the camera
-- __arrow keys__ allow you to move the camera
-- The __Configuration__ page in the GUI will let you tweak more!
+- The __Configuration__ page in the GUI will let you tweak many parameters and pause the simulation
+- You can drag with the mouse to move the camera and zoom with the mouse wheel
 
 ## Development
 

core/src/com/mygdx/game/Game.java

@@ -3,6 +3,7 @@ package com.mygdx.game;
 import com.badlogic.gdx.ApplicationAdapter;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.Input;
+import com.badlogic.gdx.InputProcessor;
 import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.g2d.BitmapFont;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
@@ -20,10 +21,60 @@ public class Game extends ApplicationAdapter {
     private float cameraSpeed = 15;
     private BitmapFont font;
     private boolean paused = false;
+    private InputProcessor input;
 
     @Override
     public void create() {
         game = this;
+        input = new InputProcessor() {
+
+            @Override
+            public boolean keyDown(int i) {
+                return true;
+            }
+
+            @Override
+            public boolean keyUp(int i) {
+                return true;
+            }
+
+            @Override
+            public boolean keyTyped(char c) {
+                return true;
+            }
+
+            @Override
+            public boolean touchDown(int i, int i1, int i2, int i3) {
+                return true;
+            }
+
+            @Override
+            public boolean touchUp(int i, int i1, int i2, int i3) {
+                return true;
+            }
+
+            @Override
+            public boolean touchDragged(int i, int i1, int i2) {
+                renderer.translate(Gdx.input.getDeltaX(), -Gdx.input.getDeltaY(), 0);
+                return true;
+            }
+
+            @Override
+            public boolean mouseMoved(int i, int i1) {
+                return true;
+            }
+
+            @Override
+            public boolean scrolled(int i) {
+                if (i>0) {
+                    renderer.scale(0.5f, 0.5f, 1);
+                } else {
+                    renderer.scale(1.5f, 1.5f, 1);
+                }
+                return true;
+            }
+        };
+        Gdx.input.setInputProcessor(input);
         renderer = new ShapeRenderer();
         renderer.setAutoShapeType(true);
         overlayRenderer = new ShapeRenderer();
@@ -45,47 +96,6 @@ public class Game extends ApplicationAdapter {
 
     @Override
     public void render() {
-        // Controls
-        if (Gdx.input.isKeyJustPressed(Input.Keys.SPACE)) {
-            world.launchNewGen();
-        }
-        if (Gdx.input.isKeyPressed(Input.Keys.RIGHT)) {
-            renderer.translate(-cameraSpeed, 0, 0);
-        }
-        if (Gdx.input.isKeyPressed(Input.Keys.LEFT)) {
-            renderer.translate(cameraSpeed, 0, 0);
-        }
-        if (Gdx.input.isKeyPressed(Input.Keys.UP)) {
-            renderer.translate(0, -cameraSpeed, 0);
-        }
-        if (Gdx.input.isKeyPressed(Input.Keys.DOWN)) {
-            renderer.translate(0, cameraSpeed, 0);
-        }
-        if (Gdx.input.isKeyJustPressed(Input.Keys.PLUS)) {
-            renderer.scale(0.5f, 0.5f, 1);
-        }
-        if (Gdx.input.isKeyJustPressed(Input.Keys.MINUS)) {
-            renderer.scale(1.5f, 1.5f, 1);
-        }
-        if (Gdx.input.isKeyJustPressed(Input.Keys.P)) {
-            paused = !paused;
-        }
-        if (Gdx.input.isKeyJustPressed(Input.Keys.L)) {
-            if (world.getFpsLimit() == 60) {
-                world.setFpsLimit(0);
-            } else {
-                world.setFpsLimit(60);
-            }
-        }
-        if (Gdx.input.isButtonPressed(Input.Buttons.RIGHT)) {
-            renderer.translate(Gdx.input.getDeltaX(), Gdx.input.getDeltaY() * -1, 0);
-        }
-        /*
-         // Broken for now
-         if(Gdx.input.isButtonPressed(Input.Buttons.LEFT)){
-         // TODO: project coordinates to world
-         world.selectCreatureAt(Gdx.input.getX(), Gdx.input.getY());
-         }*/
         // Draw
         Gdx.gl.glClearColor(0, 0, 0, 1);
         Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

core/src/com/mygdx/game/Log.java

@@ -28,6 +28,7 @@ public class Log {
             for (LogListener l : logListeners) {
                 l.onLog(level, msg);
             }
+            System.out.println(msg);
         }
     }
 

core/src/com/mygdx/game/Serializer.java

@@ -0,0 +1,111 @@
+package com.mygdx.game;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Hangles File I/O for AIrium components.
+ *
+ * @author fazo
+ */
+public class Serializer {
+
+    public static void saveToFile(File f, String content) {
+        PrintWriter fw = null;
+        try {
+            fw = new PrintWriter(f);
+        } catch (IOException ex) {
+            Log.log(Log.ERROR, ex.getMessage());
+        }
+        fw.print(content);
+        fw.flush();
+        fw.close();
+    }
+
+    public static String loadFromFile(File f) {
+        String s, a = "";
+        try {
+            BufferedReader bf = new BufferedReader(new FileReader(f));
+            while ((s = bf.readLine()) != null) {
+                a += s+"\n";
+            }
+        } catch (Exception e) {
+            Log.log(Log.ERROR, e.getMessage());
+            System.out.println(e+"");
+        }
+        return a;
+    }
+
+    public static String serializeBrain(float brainMap[][][]) {
+        String s = "# Neural Map for use with AIrium.\n"
+                + "# More information at http://github.com/fazo96/AIrium\n"
+                + "Layers: " + (brainMap.length+1);
+        s += "\nInput Neurons: " + brainMap[0][0].length;
+        s += "\n# Layer 1 Skipped because it's the input layer.";
+        // layers (input layer not included in brain map)
+        for (int i = 0; i < brainMap.length; i++) {
+            s += "\nLayer " + (i + 2) + " has " + brainMap[i].length + " neurons";
+            for (int j = 0; j < brainMap[i].length; j++) { // neurons
+                s += "\nWeights for Layer " + (i + 2) + " Neuron " + (j + 1) + " = ";
+                for (int z = 0; z < brainMap[i][j].length; z++) { // connections
+                    s += brainMap[i][j][z] + " ";
+                }
+            }
+        }
+        return s;
+    }
+
+    public static float[][][] loadBrain(String s) {
+        float brainMap[][][] = null;
+        Log.log(Log.INFO,"Loading brain from String with "+s.split("\n").length+" lines:\n"+s);
+        for (String l : s.split("\n")) {
+            l = l.trim();
+            if (l.isEmpty() || l.startsWith("#")) {
+                // Skip comment
+            } else if (l.startsWith("Layers: ")) {
+                // Set Layer number
+                int layers = Integer.parseInt(l.split(" ")[1]) - 1;
+                brainMap = new float[layers][][];
+                Log.log(Log.INFO, "Loaded NLayers: " + layers);
+            } else if (l.startsWith("Input Neurons")) {
+                int in = Integer.parseInt(l.split(" ")[2]);
+                brainMap[0] = new float[in][0];
+                Log.log(Log.INFO, "Loaded NInputNeurons: " + in);
+            } else if (l.startsWith("Layer ")) {
+                // Set neuron number for given layer
+                String ll[] = l.split(" ");
+                int layer = Integer.parseInt(ll[1]) - 2;
+                int n = Integer.parseInt(ll[3]);
+                brainMap[layer] = new float[n][];//[layer>0?brainMap[layer-1].length:0];
+            } else if (l.startsWith("Weights ")) {
+                // Set weights
+                String ll[] = l.split(" ");
+                int layer = Integer.parseInt(ll[3]) - 2;
+                int neuron = Integer.parseInt(ll[5]) - 1;
+                int nWeights = ll.length - 7;
+                brainMap[layer][neuron] = new float[nWeights];
+                if(layer == 0){
+                    Log.log(Log.INFO, "This weightmap is for brains with "+(nWeights)+" input neurons.");
+                } else if (nWeights != brainMap[layer - 1].length) {
+                    Log.log(Log.ERROR, "WRONG WEIGHT NUMBER: prev layer has "
+                            + brainMap[layer - 1].length + " neurons, but only "
+                            + (nWeights)
+                            + " weights are supplied to this neuron");
+                }
+                for (int i = 7; i < ll.length; i++) {
+                    brainMap[layer][neuron][i - 7] = Float.parseFloat(ll[i]);
+                    Log.log(Log.INFO,"Loading L"+layer+"N"+neuron+"W"+(i-7)+" = "+brainMap[layer][neuron][i-7]);
+                }
+                Log.log(Log.INFO, "Loaded " + (nWeights) + " Weights for Layer " + layer + " Neuron " + neuron);
+            }
+        }
+        return brainMap;
+    }
+}

core/src/logic/World.java

@@ -348,15 +348,15 @@ public class World implements Runnable {
         }
     }
 
-    private void spawnVegetable() {
+    public void spawnVegetable() {
         spawn(false, null);
     }
 
-    private Creature spawnCreature() {
+    public Creature spawnCreature() {
         return (Creature) spawn(true, null);
     }
 
-    private Creature spawnCreature(float[][][] b) {
+    public Creature spawnCreature(float[][][] b) {
         return (Creature) spawn(true, b);
     }
 

core/src/logic/neural/Brain.java

@@ -34,28 +34,13 @@ public class Brain {
         initialize();
     }
 
-    /**
-     * Create a new brain using given brain map (mind)
-     *
-     * @param brainMap the brain map (mind) to use
-     */
-    public Brain(float[][][] brainMap) {
-        neurons = new Neuron[brainMap.length][];
-        for (int i = 0; i < brainMap.length; i++) { // for each layer
-            neurons[i] = new Neuron[brainMap[i].length];
-            for (int j = 0; j < brainMap[i].length; j++) { // for each neuron
-                neurons[i][j] = new Neuron(i, bias, this, brainMap[i][j]);
-            }
-        }
-    }
-
     /**
      * Apply a new brain map (mind) to this brain
      *
      * @param brainMap the new brain map to apply
      */
     public void remap(float[][][] brainMap) {
-        for (int i = 0; i < brainMap.length; i++) { // for each layer
+        for (int i = 0; i < brainMap.length; i++) { // for each layer (skip input)
             for (int j = 0; j < brainMap[i].length; j++) { // for each neuron
                 // skip input layer
                 if (neurons[i + 1][j] == null) {
@@ -103,9 +88,11 @@ public class Brain {
                 float nr = neurons[i][j].compute();
                 // Draw neuron links
                 float[] links = neurons[i][j].getWeights();
-                for (int f = 0; f < links.length; f++) {
-                    s.setColor(links[f] < 0 ? links[f] / 2 * -1 : 0, links[f] > 0 ? links[f] / 2 : 0, 0, 1);
-                    s.line(i * sepX + offset, j * sepY + offset, (i - 1) * sepX + offset, f * sepY + offset);
+                if (links != null) {
+                    for (int f = 0; f < links.length; f++) {
+                        s.setColor(links[f] < 0 ? links[f] / 2 * -1 : 0, links[f] > 0 ? links[f] / 2 : 0, 0, 1);
+                        s.line(i * sepX + offset, j * sepY + offset, (i - 1) * sepX + offset, f * sepY + offset);
+                    }
                 }
                 // Draw neuron
                 s.setColor(1 - nr, nr, 0, 1);

core/src/logic/neural/Neuron.java

@@ -76,6 +76,7 @@ public class Neuron {
      * @return the output of this neuron.
      */
     public float compute() {
+        if(weights == null || weights.length == 0) isInputNeuron = true;
         if (isInputNeuron) {
             return output;
         }

desktop/src/gui/GUI.form

@@ -89,9 +89,6 @@
     <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
       <Dimension value="[700, 700]"/>
     </Property>
-    <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
-      <Dimension value="[700, 700]"/>
-    </Property>
   </Properties>
   <SyntheticProperties>
     <SyntheticProperty name="menuBar" type="java.lang.String" value="menuBar"/>
@@ -174,7 +171,7 @@
                 <DimensionLayout dim="1">
                   <Group type="103" groupAlignment="0" attributes="0">
                       <Group type="102" alignment="0" attributes="0">
-                          <Component id="jScrollPane1" pref="490" max="32767" attributes="0"/>
+                          <Component id="jScrollPane1" pref="567" max="32767" attributes="0"/>
                           <EmptySpace min="-2" pref="10" max="-2" attributes="0"/>
                           <Group type="103" groupAlignment="3" attributes="0">
                               <Component id="jLabel1" alignment="3" min="-2" max="-2" attributes="0"/>
@@ -228,35 +225,6 @@
                 </Component>
               </SubComponents>
             </Container>
-            <Container class="javax.swing.JScrollPane" name="jScrollPane2">
-              <AuxValues>
-                <AuxValue name="autoScrollPane" type="java.lang.Boolean" value="true"/>
-              </AuxValues>
-              <Constraints>
-                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.support.JTabbedPaneSupportLayout" value="org.netbeans.modules.form.compat2.layouts.support.JTabbedPaneSupportLayout$JTabbedPaneConstraintsDescription">
-                  <JTabbedPaneConstraints tabName="Creatures">
-                    <Property name="tabTitle" type="java.lang.String" value="Creatures"/>
-                  </JTabbedPaneConstraints>
-                </Constraint>
-              </Constraints>
-
-              <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
-              <SubComponents>
-                <Component class="javax.swing.JList" name="creatureList">
-                  <Properties>
-                    <Property name="model" type="javax.swing.ListModel" editor="org.netbeans.modules.form.editors2.ListModelEditor">
-                      <StringArray count="1">
-                        <StringItem index="0" value="No creatures"/>
-                      </StringArray>
-                    </Property>
-                    <Property name="selectionMode" type="int" value="0"/>
-                  </Properties>
-                  <Events>
-                    <EventHandler event="valueChanged" listener="javax.swing.event.ListSelectionListener" parameters="javax.swing.event.ListSelectionEvent" handler="creatureListValueChanged"/>
-                  </Events>
-                </Component>
-              </SubComponents>
-            </Container>
             <Container class="javax.swing.JPanel" name="jPanel1">
               <Constraints>
                 <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.support.JTabbedPaneSupportLayout" value="org.netbeans.modules.form.compat2.layouts.support.JTabbedPaneSupportLayout$JTabbedPaneConstraintsDescription">
@@ -496,7 +464,7 @@
                               <Component id="drawViewCones" alignment="3" min="-2" max="-2" attributes="0"/>
                               <Component id="drawSightLines" alignment="3" min="-2" max="-2" attributes="0"/>
                           </Group>
-                          <EmptySpace pref="41" max="32767" attributes="0"/>
+                          <EmptySpace pref="71" max="32767" attributes="0"/>
                           <Group type="103" groupAlignment="3" attributes="0">
                               <Component id="pauseButton" alignment="3" min="-2" max="-2" attributes="0"/>
                               <Component id="jButton1" alignment="3" min="-2" max="-2" attributes="0"/>
@@ -810,6 +778,83 @@
                 </Component>
               </SubComponents>
             </Container>
+            <Container class="javax.swing.JPanel" name="jPanel3">
+              <Constraints>
+                <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.support.JTabbedPaneSupportLayout" value="org.netbeans.modules.form.compat2.layouts.support.JTabbedPaneSupportLayout$JTabbedPaneConstraintsDescription">
+                  <JTabbedPaneConstraints tabName="Creatures">
+                    <Property name="tabTitle" type="java.lang.String" value="Creatures"/>
+                  </JTabbedPaneConstraints>
+                </Constraint>
+              </Constraints>
+
+              <Layout>
+                <DimensionLayout dim="0">
+                  <Group type="103" groupAlignment="0" attributes="0">
+                      <Component id="jScrollPane2" alignment="0" max="32767" attributes="0"/>
+                      <Group type="102" alignment="0" attributes="0">
+                          <EmptySpace max="-2" attributes="0"/>
+                          <Component id="saveBrainBtn" min="-2" max="-2" attributes="0"/>
+                          <EmptySpace max="-2" attributes="0"/>
+                          <Component id="loadBrainBtn" min="-2" max="-2" attributes="0"/>
+                          <EmptySpace pref="587" max="32767" attributes="0"/>
+                      </Group>
+                  </Group>
+                </DimensionLayout>
+                <DimensionLayout dim="1">
+                  <Group type="103" groupAlignment="0" attributes="0">
+                      <Group type="102" alignment="0" attributes="0">
+                          <Component id="jScrollPane2" pref="569" max="32767" attributes="0"/>
+                          <EmptySpace max="-2" attributes="0"/>
+                          <Group type="103" groupAlignment="3" attributes="0">
+                              <Component id="saveBrainBtn" alignment="3" min="-2" max="-2" attributes="0"/>
+                              <Component id="loadBrainBtn" alignment="3" min="-2" max="-2" attributes="0"/>
+                          </Group>
+                          <EmptySpace max="-2" attributes="0"/>
+                      </Group>
+                  </Group>
+                </DimensionLayout>
+              </Layout>
+              <SubComponents>
+                <Container class="javax.swing.JScrollPane" name="jScrollPane2">
+                  <AuxValues>
+                    <AuxValue name="autoScrollPane" type="java.lang.Boolean" value="true"/>
+                  </AuxValues>
+
+                  <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
+                  <SubComponents>
+                    <Component class="javax.swing.JList" name="creatureList">
+                      <Properties>
+                        <Property name="model" type="javax.swing.ListModel" editor="org.netbeans.modules.form.editors2.ListModelEditor">
+                          <StringArray count="1">
+                            <StringItem index="0" value="No creatures"/>
+                          </StringArray>
+                        </Property>
+                        <Property name="selectionMode" type="int" value="0"/>
+                      </Properties>
+                      <Events>
+                        <EventHandler event="valueChanged" listener="javax.swing.event.ListSelectionListener" parameters="javax.swing.event.ListSelectionEvent" handler="creatureListValueChanged"/>
+                      </Events>
+                    </Component>
+                  </SubComponents>
+                </Container>
+                <Component class="javax.swing.JButton" name="saveBrainBtn">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="Save"/>
+                  </Properties>
+                  <Events>
+                    <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="saveBrainBtnActionPerformed"/>
+                  </Events>
+                </Component>
+                <Component class="javax.swing.JButton" name="loadBrainBtn">
+                  <Properties>
+                    <Property name="text" type="java.lang.String" value="Load"/>
+                  </Properties>
+                  <Events>
+                    <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="loadBrainBtnActionPerformed"/>
+                  </Events>
+                </Component>
+              </SubComponents>
+            </Container>
           </SubComponents>
         </Container>
         <Component class="javax.swing.JLabel" name="status">

desktop/src/gui/GUI.java

@@ -11,7 +11,9 @@ import com.mygdx.game.Game;
 import com.mygdx.game.Listener;
 import com.mygdx.game.Log;
 import com.mygdx.game.Log.LogListener;
+import com.mygdx.game.Serializer;
 import java.awt.Desktop;
+import java.io.File;
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.net.URL;
@@ -19,7 +21,10 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import javafx.stage.FileChooser;
+import javax.swing.JFileChooser;
 import javax.swing.JOptionPane;
+import logic.Creature;
 
 /**
  *
@@ -80,8 +85,6 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         logTextArea = new javax.swing.JTextArea();
         jLabel1 = new javax.swing.JLabel();
         logLevelBox = new javax.swing.JComboBox();
-        jScrollPane2 = new javax.swing.JScrollPane();
-        creatureList = new javax.swing.JList();
         jPanel1 = new javax.swing.JPanel();
         fpsLimitSlider = new javax.swing.JSlider();
         jLabel3 = new javax.swing.JLabel();
@@ -129,6 +132,11 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         jLabel12 = new javax.swing.JLabel();
         nMutatedConnectionsSlider = new javax.swing.JSlider();
         currentNMutatedConnections = new javax.swing.JLabel();
+        jPanel3 = new javax.swing.JPanel();
+        jScrollPane2 = new javax.swing.JScrollPane();
+        creatureList = new javax.swing.JList();
+        saveBrainBtn = new javax.swing.JButton();
+        loadBrainBtn = new javax.swing.JButton();
         status = new javax.swing.JLabel();
         menuBar = new javax.swing.JMenuBar();
         jMenu1 = new javax.swing.JMenu();
@@ -143,7 +151,6 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
         setTitle("AIrium");
         setMinimumSize(new java.awt.Dimension(700, 700));
-        setPreferredSize(new java.awt.Dimension(700, 700));
 
         logTextArea.setEditable(false);
         logTextArea.setColumns(20);
@@ -178,7 +185,7 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         logPaneLayout.setVerticalGroup(
             logPaneLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
             .addGroup(logPaneLayout.createSequentialGroup()
-                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 490, Short.MAX_VALUE)
+                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 567, Short.MAX_VALUE)
                 .addGap(10, 10, 10)
                 .addGroup(logPaneLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                     .addComponent(jLabel1)
@@ -188,21 +195,6 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
 
         tabs.addTab("Log", logPane);
 
-        creatureList.setModel(new javax.swing.AbstractListModel() {
-            String[] strings = { "No creatures" };
-            public int getSize() { return strings.length; }
-            public Object getElementAt(int i) { return strings[i]; }
-        });
-        creatureList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
-        creatureList.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
-            public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
-                creatureListValueChanged(evt);
-            }
-        });
-        jScrollPane2.setViewportView(creatureList);
-
-        tabs.addTab("Creatures", jScrollPane2);
-
         fpsLimitSlider.setMinimum(1);
         fpsLimitSlider.setSnapToTicks(true);
         fpsLimitSlider.setToolTipText("The maximum amount of ticks per second the simulation is allowed to compute");
@@ -598,7 +590,7 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
                 .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                     .addComponent(drawViewCones)
                     .addComponent(drawSightLines))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 41, Short.MAX_VALUE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 71, Short.MAX_VALUE)
                 .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                     .addComponent(pauseButton)
                     .addComponent(jButton1))
@@ -607,6 +599,58 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
 
         tabs.addTab("Settings", jPanel1);
 
+        creatureList.setModel(new javax.swing.AbstractListModel() {
+            String[] strings = { "No creatures" };
+            public int getSize() { return strings.length; }
+            public Object getElementAt(int i) { return strings[i]; }
+        });
+        creatureList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
+        creatureList.addListSelectionListener(new javax.swing.event.ListSelectionListener() {
+            public void valueChanged(javax.swing.event.ListSelectionEvent evt) {
+                creatureListValueChanged(evt);
+            }
+        });
+        jScrollPane2.setViewportView(creatureList);
+
+        saveBrainBtn.setText("Save");
+        saveBrainBtn.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                saveBrainBtnActionPerformed(evt);
+            }
+        });
+
+        loadBrainBtn.setText("Load");
+        loadBrainBtn.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                loadBrainBtnActionPerformed(evt);
+            }
+        });
+
+        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
+        jPanel3.setLayout(jPanel3Layout);
+        jPanel3Layout.setHorizontalGroup(
+            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addComponent(jScrollPane2)
+            .addGroup(jPanel3Layout.createSequentialGroup()
+                .addContainerGap()
+                .addComponent(saveBrainBtn)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                .addComponent(loadBrainBtn)
+                .addContainerGap(587, Short.MAX_VALUE))
+        );
+        jPanel3Layout.setVerticalGroup(
+            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addGroup(jPanel3Layout.createSequentialGroup()
+                .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 569, Short.MAX_VALUE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                    .addComponent(saveBrainBtn)
+                    .addComponent(loadBrainBtn))
+                .addContainerGap())
+        );
+
+        tabs.addTab("Creatures", jPanel3);
+
         status.setText("Simulation stopped");
 
         javax.swing.GroupLayout containerLayout = new javax.swing.GroupLayout(container);
@@ -816,14 +860,14 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         currentMaxTicks.setText(maxTicksSlider.getValue() + "");
         currentHpDecay.setText(hpDecaySlider.getValue() / 1000f + "");
         currentSightRange.setText(sightRangeSlider.getValue() + "");
-        options.put("nMutatedBrains", (float) nMutatedBrainsSlider.getValue()/100);
-        currentNMutatedBrains.setText(String.format("%.2f", (float) nMutatedBrainsSlider.getValue()/100)+"%");
-        options.put("nMutatedNeurons", (float) nMutatedNeuronsSlider.getValue()/100);
-        currentNMutatedNeurons.setText(String.format("%.2f", (float) nMutatedNeuronsSlider.getValue()/100)+"%");
-        options.put("nMutatedConnections", (float) nMutatedConnectionsSlider.getValue()/100);
-        currentNMutatedConnections.setText(String.format("%.2f", (float) nMutatedConnectionsSlider.getValue()/100)+"%");
-        options.put("mutationFactor", (float) mutationFactorSlider.getValue()/100);
-        currentMutationFactor.setText(String.format("%.2f", (float) mutationFactorSlider.getValue()/100));
+        options.put("nMutatedBrains", (float) nMutatedBrainsSlider.getValue() / 100);
+        currentNMutatedBrains.setText(String.format("%.2f", (float) nMutatedBrainsSlider.getValue() / 100) + "%");
+        options.put("nMutatedNeurons", (float) nMutatedNeuronsSlider.getValue() / 100);
+        currentNMutatedNeurons.setText(String.format("%.2f", (float) nMutatedNeuronsSlider.getValue() / 100) + "%");
+        options.put("nMutatedConnections", (float) nMutatedConnectionsSlider.getValue() / 100);
+        currentNMutatedConnections.setText(String.format("%.2f", (float) nMutatedConnectionsSlider.getValue() / 100) + "%");
+        options.put("mutationFactor", (float) mutationFactorSlider.getValue() / 100);
+        currentMutationFactor.setText(String.format("%.2f", (float) mutationFactorSlider.getValue() / 100));
         if (game != null) {
             game.getWorld().reloadOptions();
         }
@@ -837,20 +881,6 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         Log.setLogLevel(logLevelBox.getSelectedIndex());
     }//GEN-LAST:event_logLevelBoxItemStateChanged
 
-    private void creatureListValueChanged(javax.swing.event.ListSelectionEvent evt) {//GEN-FIRST:event_creatureListValueChanged
-        if (game == null) {
-            creatureList.setSelectedIndex(-1);
-        } else {
-            try {
-                if (creatureList.getSelectedIndex() >= 0) {
-                    Game.get().getWorld().selectCreature(Game.get().getWorld().getCreatures().get(creatureList.getSelectedIndex()));
-                }
-            } catch (IndexOutOfBoundsException ex) {
-                JOptionPane.showMessageDialog(this, "This creature is not available");
-            }
-        }
-    }//GEN-LAST:event_creatureListValueChanged
-
     private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem2ActionPerformed
         Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null;
         if (desktop != null) {
@@ -957,6 +987,49 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
         updateSettings();
     }//GEN-LAST:event_nMutatedConnectionsSliderStateChanged
 
+    private void creatureListValueChanged(javax.swing.event.ListSelectionEvent evt) {//GEN-FIRST:event_creatureListValueChanged
+        if (game == null) {
+            creatureList.setSelectedIndex(-1);
+        } else {
+            try {
+                if (creatureList.getSelectedIndex() >= 0) {
+                    Game.get().getWorld().selectCreature(Game.get().getWorld().getCreatures().get(creatureList.getSelectedIndex()));
+                }
+            } catch (IndexOutOfBoundsException ex) {
+                JOptionPane.showMessageDialog(this, "This creature is not available");
+            }
+        }
+    }//GEN-LAST:event_creatureListValueChanged
+
+    private void saveBrainBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_saveBrainBtnActionPerformed
+        game.setPaused(true);
+        updateGUI();
+        if (game.getWorld().getSelectedCreature() == null) {
+            JOptionPane.showMessageDialog(this, "Please select a creature first");
+            return;
+        }
+        JFileChooser fc = new JFileChooser();
+        File f = null;
+        if (fc.showSaveDialog(this) == JFileChooser.APPROVE_OPTION) {
+            f = fc.getSelectedFile();
+        } else return;
+        Serializer.saveToFile(f, Serializer.serializeBrain(game.getWorld().getSelectedCreature().getBrain().getMap()));
+    }//GEN-LAST:event_saveBrainBtnActionPerformed
+
+    private void loadBrainBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_loadBrainBtnActionPerformed
+        game.setPaused(true);
+        updateGUI();
+        JFileChooser fc = new JFileChooser();
+        File f = null;
+        if (fc.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
+            f = fc.getSelectedFile();
+        } else return;
+        float map[][][] = Serializer.loadBrain(Serializer.loadFromFile(f));
+        Creature c = (Creature) game.getWorld().spawnCreature(map);
+        game.getWorld().selectCreature(c);
+        updateGUI();
+    }//GEN-LAST:event_loadBrainBtnActionPerformed
+
     // Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JPanel container;
     private javax.swing.JSlider corpseDecaySlider;
@@ -1001,8 +1074,10 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
     private javax.swing.JMenuItem jMenuItem1;
     private javax.swing.JMenuItem jMenuItem2;
     private javax.swing.JPanel jPanel1;
+    private javax.swing.JPanel jPanel3;
     private javax.swing.JScrollPane jScrollPane1;
     private javax.swing.JScrollPane jScrollPane2;
+    private javax.swing.JButton loadBrainBtn;
     private javax.swing.JComboBox logLevelBox;
     private javax.swing.JPanel logPane;
     private javax.swing.JTextArea logTextArea;
@@ -1017,6 +1092,7 @@ public class GUI extends javax.swing.JFrame implements LogListener, Listener {
     private javax.swing.JSlider nPlantsSlider;
     private javax.swing.JToggleButton pauseButton;
     private javax.swing.JMenuItem pauseMenuButton;
+    private javax.swing.JButton saveBrainBtn;
     private javax.swing.JSlider sightRangeSlider;
     private javax.swing.JMenuItem startButton;
     private javax.swing.JLabel status;