diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e42b01e..f83384c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".FillGrid">
+        <activity android:name=".FillGrid" android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/Area.java b/app/src/main/java/org/agp8x/android/games/fillgrid/Area.java
new file mode 100644
index 0000000..47eb579
--- /dev/null
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/Area.java
@@ -0,0 +1,52 @@
+package org.agp8x.android.games.fillgrid;
+
+/**
+ * Created by clemensk on 09.04.17.
+ */
+
+public final class Area {
+    public final int top;
+    public final int left;
+    public final int bottom;
+    public final int right;
+
+    public Area(int top, int left, int bottom, int right) {
+        this.top = top;
+        this.left = left;
+        this.bottom = bottom;
+        this.right = right;
+    }
+
+    @Override
+    public String toString() {
+        return "Area{" +
+                "top=" + top +
+                ", left=" + left +
+                ", bottom=" + bottom +
+                ", right=" + right +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Area area = (Area) o;
+
+        if (top != area.top) return false;
+        if (left != area.left) return false;
+        if (bottom != area.bottom) return false;
+        return right == area.right;
+
+    }
+
+    @Override
+    public int hashCode() {
+        int result = top;
+        result = 31 * result + left;
+        result = 31 * result + bottom;
+        result = 31 * result + right;
+        return result;
+    }
+}
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProvider.java b/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProvider.java
index bbd2c19..77b345d 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProvider.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProvider.java
@@ -9,7 +9,7 @@ import org.agp8x.android.games.fillgrid.data.Cell;
  * Created by clemensk on 09.04.17.
  */
 
-public interface CellPaintProvider {
+public interface CellPaintProvider<C extends Cell> {
     @NonNull
-    Paint getPaint(Cell cell);
+    Paint getPaint(C cell);
 }
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderBackground.java b/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderBackground.java
index eadb8a2..9359a0d 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderBackground.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderBackground.java
@@ -9,10 +9,10 @@ import org.agp8x.android.games.fillgrid.data.Cell;
  * Created by clemensk on 09.04.17.
  */
 
-public class CellPaintProviderBackground implements CellPaintProvider {
+public class CellPaintProviderBackground<C extends Cell> implements CellPaintProvider<C> {
     @NonNull
     @Override
-    public Paint getPaint(Cell cell) {
+    public Paint getPaint(C cell) {
         Paint paint = new Paint();
         paint.setAlpha(128);
         return paint;
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderDefault.java b/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderDefault.java
index 0eb446f..19c9ed7 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderDefault.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/CellPaintProviderDefault.java
@@ -11,11 +11,11 @@ import org.agp8x.android.games.fillgrid.data.GroupCell;
  * Created by clemensk on 09.04.17.
  */
 
-public class CellPaintProviderDefault implements CellPaintProvider {
+public class CellPaintProviderDefault<C extends Cell> implements CellPaintProvider<C> {
 
     @NonNull
     @Override
-    public Paint getPaint(Cell cell) {
+    public Paint getPaint(C cell) {
         Paint paint = new Paint();
         if (cell instanceof GroupCell) {
             GroupCell groupCell = (GroupCell) cell;
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/FillGridView.java b/app/src/main/java/org/agp8x/android/games/fillgrid/FillGridView.java
index 80fe5c0..8885d07 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/FillGridView.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/FillGridView.java
@@ -5,11 +5,11 @@ import android.graphics.Canvas;
 import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.util.Pair;
+import android.view.MotionEvent;
 import android.view.View;
 
 import org.agp8x.android.games.fillgrid.data.GridBlock;
 import org.agp8x.android.games.fillgrid.data.GridBoard;
-import org.agp8x.android.games.fillgrid.data.GridObject;
 import org.agp8x.android.games.fillgrid.data.GroupCell;
 import org.agp8x.android.games.fillgrid.data.Offset;
 
@@ -25,15 +25,16 @@ import java.util.Map;
 public class FillGridView extends View {
     protected Pair<Integer, Integer> contentSize = null;
     protected Pair<Integer, Integer> spawnSize = null;
+    protected Area spawnBoundaries;
     protected GridBoard<GridBlock<GroupCell>, GroupCell> board;
     protected List<GridBlock<GroupCell>> blocks;
     protected Map<Offset, GroupCell> background;
-    protected GroupGridPainter painter;
-    protected GroupGridPainter bgPainter;
+    protected Map<Offset, GridBlock<GroupCell>> spawnGrid;
+    protected GroupGridPainter<GroupCell> painter;
+    protected GroupGridPainter<GroupCell> bgPainter;
     private float divison;
-    private ArrayList<GridObject<GroupCell>> spawn;
     private int spawnCount;
-    private SpawnPainterGroup<GroupCell> spawnPainter;
+    private SpawnPainterGroup<GridBlock<GroupCell>, GroupCell> spawnPainter;
 
     public FillGridView(Context context) {
         super(context);
@@ -68,18 +69,18 @@ public class FillGridView extends View {
                 background.put(new Offset(i, j), bgCell);
             }
         }
+        spawnGrid = new HashMap<>();
 
         CellPaintProvider bgCpp = new CellPaintProviderBackground();
-        bgPainter = new GroupGridPainter(dimensions, bgCpp);
+        bgPainter = new GroupGridPainter<>(dimensions, bgCpp);
 
         CellPaintProvider cpp = new CellPaintProviderDefault();
-        painter = new GroupGridPainter(dimensions, cpp);
+        painter = new GroupGridPainter<>(dimensions, cpp);
 
+        spawnPainter = new SpawnPainterGroup<>(new CellPaintProviderBackground());
 
         // TODO: create configuration
         spawnCount = 3;
-        spawnPainter = new SpawnPainterGroup<>(spawnCount);
-        spawn = new ArrayList<>(spawnCount);
 
         divison = 0.5625f; // divides *HD-resolutions in a square and a non-square
 
@@ -98,8 +99,10 @@ public class FillGridView extends View {
 
         board.drop(new Offset(4, 4), makeSquare());
         board.drop(new Offset(4, 4), makeAngle());
+        //end TODO
 
         populateSpawnArea();
+        setOnTouchListener(new FillGridTouchListener());
     }
 
     private GridBlock<GroupCell> makeSquare() {
@@ -134,9 +137,7 @@ public class FillGridView extends View {
 
         bgPainter.draw(canvas, background, contentSize);
         painter.draw(canvas, board.getGrid(), contentSize);
-        for (int i = 0; i < spawnCount; i++) {
-            spawnPainter.draw(canvas,i,spawn.get(i),spawnSize);
-        }
+        spawnPainter.draw(canvas, spawnGrid, spawnBoundaries);
     }
 
     private void calculateAreaSizes() {
@@ -159,6 +160,7 @@ public class FillGridView extends View {
         }
         contentSize = new Pair<>(contentHeight, contentWidth);
         spawnSize = new Pair<>(spawnHeight, spawnWidth);
+        spawnBoundaries = new Area(contentHeight, paddingLeft, spawnHeight, spawnWidth);
     }
 
     private int divideSide(int sideLength) {
@@ -167,8 +169,29 @@ public class FillGridView extends View {
 
     private void populateSpawnArea() {
         for (int i = 0; i < spawnCount; i++) {
-            GridObject<GroupCell> obj = blocks.get((int) (blocks.size() * Math.random()));
-            spawn.add(i, obj);
+            spawnGrid.put(new Offset(i, 0), getRandomGroupCellGridBlock());
+        }
+    }
+
+    private GridBlock<GroupCell> getRandomGroupCellGridBlock() {
+        return blocks.get((int) (blocks.size() * Math.random()));
+    }
+
+    private class FillGridTouchListener implements OnTouchListener {
+        @Override
+        public boolean onTouch(View v, MotionEvent event) {
+            Pair<Float, Float> position = Util.event2pair(event);
+            boolean updated = false;
+            if (Util.in(position, spawnBoundaries)) {
+                updated = handleStart(event);
+            }
+            return updated;
+        }
+
+        private boolean handleStart(MotionEvent event) {
+            boolean updated = false;
+
+            return updated;
         }
     }
 }
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/GridPainter.java b/app/src/main/java/org/agp8x/android/games/fillgrid/GridPainter.java
index 82547fc..97303cb 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/GridPainter.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/GridPainter.java
@@ -3,7 +3,7 @@ package org.agp8x.android.games.fillgrid;
 import android.graphics.Canvas;
 import android.util.Pair;
 
-import org.agp8x.android.games.fillgrid.data.GroupCell;
+import org.agp8x.android.games.fillgrid.data.Cell;
 import org.agp8x.android.games.fillgrid.data.Offset;
 
 import java.util.Map;
@@ -12,7 +12,7 @@ import java.util.Map;
  * Created by clemensk on 07.04.17.
  */
 
-public interface GridPainter {
+public interface GridPainter<C extends Cell> {
 
-    void draw(Canvas canvas, Map<Offset, GroupCell> cells, Pair<Integer,Integer> realDimensions);
+    void draw(Canvas canvas, Map<Offset, C> cells, Pair<Integer,Integer> realDimensions);
 }
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/GroupGridPainter.java b/app/src/main/java/org/agp8x/android/games/fillgrid/GroupGridPainter.java
index 4038c21..f4c8d12 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/GroupGridPainter.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/GroupGridPainter.java
@@ -3,7 +3,6 @@ package org.agp8x.android.games.fillgrid;
 import android.graphics.Canvas;
 import android.util.Pair;
 
-import org.agp8x.android.games.fillgrid.data.GridObject;
 import org.agp8x.android.games.fillgrid.data.GroupCell;
 import org.agp8x.android.games.fillgrid.data.Offset;
 
@@ -13,7 +12,7 @@ import java.util.Map;
  * Created by clemensk on 07.04.17.
  */
 
-public class GroupGridPainter implements GridPainter {
+public class GroupGridPainter<C extends GroupCell> implements GridPainter<C> {
     private Offset dimensions;
     private CellPaintProvider styleInfo;
     private int margin;
@@ -27,7 +26,7 @@ public class GroupGridPainter implements GridPainter {
     }
 
     @Override
-    public void draw(Canvas canvas, Map<Offset, GroupCell> cells, Pair<Integer, Integer> realDimensions) {
+    public void draw(Canvas canvas, Map<Offset, C> cells, Pair<Integer, Integer> realDimensions) {
         cells.forEach((offset, groupCell) -> drawCell(canvas, offset, groupCell, realDimensions));
     }
 
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainter.java b/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainter.java
index 5ba776b..0ae7400 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainter.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainter.java
@@ -5,11 +5,14 @@ import android.util.Pair;
 
 import org.agp8x.android.games.fillgrid.data.Cell;
 import org.agp8x.android.games.fillgrid.data.GridObject;
+import org.agp8x.android.games.fillgrid.data.Offset;
+
+import java.util.Map;
 
 /**
  * Created by clemensk on 09.04.17.
  */
 
-public interface SpawnPainter<C extends Cell> {
-    void draw(Canvas canvas, int index, GridObject<C> gridObject, Pair<Integer,Integer> dimensions);
+public interface SpawnPainter<G extends GridObject<C>, C extends Cell> {
+    void draw(Canvas canvas, Map<Offset, G> spawnGrid, Area spawnSize);
 }
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainterGroup.java b/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainterGroup.java
index 718c151..b720b91 100644
--- a/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainterGroup.java
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/SpawnPainterGroup.java
@@ -1,43 +1,53 @@
 package org.agp8x.android.games.fillgrid;
 
 import android.graphics.Canvas;
-import android.graphics.Paint;
 import android.util.Pair;
 
 import org.agp8x.android.games.fillgrid.data.GridObject;
 import org.agp8x.android.games.fillgrid.data.GroupCell;
 import org.agp8x.android.games.fillgrid.data.Offset;
 
+import java.util.Map;
+
 /**
  * Created by clemensk on 09.04.17.
  */
 
-public class SpawnPainterGroup<C extends GroupCell> implements SpawnPainter<C> {
-    private int objCount;
+public class SpawnPainterGroup<G extends GridObject<C>, C extends GroupCell> implements SpawnPainter<G, C> {
     private int radius;
     private int margin;
     private CellPaintProvider styleInfo;
+    private int diameter;
 
-    public SpawnPainterGroup(int objCount) {
-        this.objCount = objCount;
+    public SpawnPainterGroup(CellPaintProvider styleInfo) {
+        this.styleInfo = styleInfo;
         radius = 30;//TODO dynamic radius to fill area
-        margin = radius + radius / 4;
-        this.styleInfo = new CellPaintProviderBackground();
+        margin = radius *3 + radius / 4;
+        diameter = radius * 2;
     }
 
     @Override
-    public void draw(Canvas canvas, int index, GridObject<C> gridObject, Pair<Integer, Integer> dimensions) {
-        System.out.println(dimensions);
-        int widthS = Math.max(dimensions.first, dimensions.second);
-        int height = (int) (Math.min(dimensions.first, dimensions.second) * 0.25f) + widthS;
-        float widthPerObject = widthS / (1f * objCount);
-        int width = (int) (index * widthPerObject);
-
-        gridObject.getObjects().forEach((offset, groupCell) -> drawCell(canvas, height, width, offset, groupCell));
-        //drawCell(canvas, new Pair<>(height, width), null);
+    public void draw(Canvas canvas, Map<Offset, G> spawnGrid, Area spawnSize) {
+        int count = spawnGrid.size();
+        spawnGrid.forEach((offset, groupCellGridBlock) -> drawBlock(canvas, offset, groupCellGridBlock, count, spawnSize));
     }
 
-    private void drawCell(Canvas canvas, int height, int width, Offset offset, C cell) {
-        canvas.drawCircle(width + margin+ (offset.x*radius*2), height + margin + (offset.y*radius*2), radius, styleInfo.getPaint(cell));
+    private void drawBlock(Canvas canvas, Offset offset, G groupCellGridBlock, int count, Area spawnSize) {
+        groupCellGridBlock.getObjects().forEach((offset1, groupCell) -> drawCell(canvas, offset, offset1, groupCell, count, spawnSize));
+    }
+
+    private void drawCell(Canvas canvas, Offset offset, Offset offset1, C cell, int count, Area spawnSize) {
+        canvas.drawCircle(
+                getCx(offset, offset1, count, spawnSize),
+                getCy(offset, offset1, count, spawnSize),
+                radius, styleInfo.getPaint(cell));
+    }
+
+    private float getCx(Offset offset, Offset offset1, float count, Area spawnSize) {
+        return ((offset.x / count) * spawnSize.right) + margin + offset1.x * diameter;
+    }
+
+    private float getCy(Offset offset, Offset offset1, float count, Area spawnSize) {
+        return ((offset.y / count) * spawnSize.bottom) + margin + offset1.y * diameter + spawnSize.top;
     }
 }
diff --git a/app/src/main/java/org/agp8x/android/games/fillgrid/Util.java b/app/src/main/java/org/agp8x/android/games/fillgrid/Util.java
new file mode 100644
index 0000000..2eae051
--- /dev/null
+++ b/app/src/main/java/org/agp8x/android/games/fillgrid/Util.java
@@ -0,0 +1,21 @@
+package org.agp8x.android.games.fillgrid;
+
+import android.util.Pair;
+import android.view.MotionEvent;
+
+/**
+ * Created by clemensk on 09.04.17.
+ */
+
+public class Util {
+    public static final String TAG = "FillGrid";
+
+    public static Pair<Float, Float> event2pair(MotionEvent event) {
+        return new Pair<>(event.getX(), event.getY());
+    }
+
+    public static boolean in(Pair<Float, Float> probe, Area area) {
+        boolean contained = (area.top < probe.second && probe.second < area.bottom) && (area.left < probe.first && probe.first < area.right);
+        return contained;
+    }
+}