commit 8c99dbafd8be4a38a842f646446f96f3900026cc
Author: Ngb <ngb@helmholtz-bi.de>
Date:   Mon Jun 7 09:32:52 2021 +0200

    copy

diff --git a/lib/ACE_v0.3.0.jar b/lib/ACE_v0.3.0.jar
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index 0000000..c924540
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diff --git a/src/algorithms/Algorithm.class b/src/algorithms/Algorithm.class
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index 0000000..2a12b1d
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diff --git a/src/algorithms/Algorithm.ctxt b/src/algorithms/Algorithm.ctxt
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--- /dev/null
+++ b/src/algorithms/Algorithm.ctxt
@@ -0,0 +1,19 @@
+#BlueJ class context
+comment0.target=Algorithm
+comment1.params=arr
+comment1.target=Algorithm(int[])
+comment2.params=
+comment2.target=void\ run()
+comment3.params=
+comment3.target=void\ delay()
+comment4.params=
+comment4.target=void\ start()
+comment5.params=
+comment5.target=int[]\ getArray()
+comment6.params=
+comment6.target=int\ getCursor()
+comment7.params=i1\ i2
+comment7.target=void\ swap(int,\ int)
+comment8.params=
+comment8.target=void\ algorithm()
+numComments=9
diff --git a/src/algorithms/Algorithm.java b/src/algorithms/Algorithm.java
new file mode 100644
index 0000000..3e648e5
--- /dev/null
+++ b/src/algorithms/Algorithm.java
@@ -0,0 +1,57 @@
+package algorithms;
+
+public abstract class Algorithm implements Runnable {
+
+	private int delay = 100;
+	volatile int[] arr;
+	public volatile int accesses, comparisons;
+	public boolean done = false;
+	int cursor = 0;
+	
+	public Algorithm(int[] arr) {
+		this.arr = new int[arr.length];
+		for (int i = 0; i < arr.length; i++) {
+			this.arr[i] = arr[i];
+		}
+	}
+	
+	@Override
+	public void run() {
+		algorithm();
+		done = true;
+	}
+	
+	public void delay() {
+		try {
+			Thread.sleep(delay);
+		} catch (InterruptedException e) {
+			e.printStackTrace();
+		}
+	}
+	
+	public void start() {
+		new Thread(this).start();
+	}
+	
+	public int[] getArray() {
+//		int[] newArr = new int[arr.length];
+//		for (int i = 0; i < arr.length; i++) {
+//			newArr[i] = arr[i];
+//		}
+//		return newArr;
+		return arr;
+	}
+	
+	public int getCursor() {
+		return cursor;
+	}
+	
+	public void swap(int i1, int i2) {
+		int temp = arr[i1];
+		arr[i1] = arr[i2];
+		arr[i2] = temp;
+	}
+	
+	abstract void algorithm();
+
+}
diff --git a/src/algorithms/BetterBubbleSort.class b/src/algorithms/BetterBubbleSort.class
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index 0000000..99f48b7
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diff --git a/src/algorithms/BetterBubbleSort.ctxt b/src/algorithms/BetterBubbleSort.ctxt
new file mode 100644
index 0000000..3d0b29e
--- /dev/null
+++ b/src/algorithms/BetterBubbleSort.ctxt
@@ -0,0 +1,7 @@
+#BlueJ class context
+comment0.target=BetterBubbleSort
+comment1.params=arr
+comment1.target=BetterBubbleSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+numComments=3
diff --git a/src/algorithms/BetterBubbleSort.java b/src/algorithms/BetterBubbleSort.java
new file mode 100644
index 0000000..f959b81
--- /dev/null
+++ b/src/algorithms/BetterBubbleSort.java
@@ -0,0 +1,32 @@
+package algorithms;
+
+public class BetterBubbleSort extends Algorithm {
+	
+	int border;
+
+	public BetterBubbleSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	void algorithm() {
+		border = arr.length;
+		for (int i = 0; i < arr.length; i++) {
+			for (int j = 0; j < arr.length - 1; j++) {
+				cursor = j;
+				delay();
+				if (arr[j] > arr[j + 1]) {
+					swap(j, j + 1);
+					accesses += 4;
+				}
+				accesses += 2;
+				comparisons++;
+				if (j == border - 1) {
+					break;
+				}
+			}
+			border--;
+		}
+	}
+
+}
diff --git a/src/algorithms/BubbleSort.class b/src/algorithms/BubbleSort.class
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index 0000000..1910bcc
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diff --git a/src/algorithms/BubbleSort.ctxt b/src/algorithms/BubbleSort.ctxt
new file mode 100644
index 0000000..18af407
--- /dev/null
+++ b/src/algorithms/BubbleSort.ctxt
@@ -0,0 +1,7 @@
+#BlueJ class context
+comment0.target=BubbleSort
+comment1.params=arr
+comment1.target=BubbleSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+numComments=3
diff --git a/src/algorithms/BubbleSort.java b/src/algorithms/BubbleSort.java
new file mode 100644
index 0000000..147f19d
--- /dev/null
+++ b/src/algorithms/BubbleSort.java
@@ -0,0 +1,24 @@
+package algorithms;
+
+public class BubbleSort extends Algorithm {
+
+	public BubbleSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	public void algorithm() {
+		for (int i = 0; i < arr.length; i++) {
+			for (int j = 0; j < arr.length - 1; j++) {
+				cursor = j;
+				delay();
+				if (arr[j] > arr[j + 1]) {
+					swap(j, j + 1);
+					accesses += 4;
+				}
+				accesses += 2;
+				comparisons++;
+			}
+		}
+	}
+}
diff --git a/src/algorithms/InsertionSort.class b/src/algorithms/InsertionSort.class
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index 0000000..79d48f0
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diff --git a/src/algorithms/InsertionSort.ctxt b/src/algorithms/InsertionSort.ctxt
new file mode 100644
index 0000000..fa35fda
--- /dev/null
+++ b/src/algorithms/InsertionSort.ctxt
@@ -0,0 +1,7 @@
+#BlueJ class context
+comment0.target=InsertionSort
+comment1.params=arr
+comment1.target=InsertionSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+numComments=3
diff --git a/src/algorithms/InsertionSort.java b/src/algorithms/InsertionSort.java
new file mode 100644
index 0000000..aa4c91a
--- /dev/null
+++ b/src/algorithms/InsertionSort.java
@@ -0,0 +1,30 @@
+package algorithms;
+
+public class InsertionSort extends Algorithm {
+
+	int index;
+
+	public InsertionSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	void algorithm() {
+		while (index < arr.length) {
+			for (int i = index; i > 0; i--) {
+				cursor = i;
+				delay();
+				if (arr[i] < arr[i - 1]) {
+					swap(i, i - 1);
+					accesses += 4;
+				}else {
+					break;
+				}
+				accesses += 2;
+				comparisons++;
+			}
+			index++;
+		}
+	}
+
+}
diff --git a/src/algorithms/MergeSort.class b/src/algorithms/MergeSort.class
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diff --git a/src/algorithms/MergeSort.ctxt b/src/algorithms/MergeSort.ctxt
new file mode 100644
index 0000000..e2c7f58
--- /dev/null
+++ b/src/algorithms/MergeSort.ctxt
@@ -0,0 +1,11 @@
+#BlueJ class context
+comment0.target=MergeSort
+comment1.params=arr
+comment1.target=MergeSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+comment3.params=arr\ l\ m\ r
+comment3.target=void\ merge(int[],\ int,\ int,\ int)
+comment4.params=arr\ l\ r
+comment4.target=void\ sort(int[],\ int,\ int)
+numComments=5
diff --git a/src/algorithms/MergeSort.java b/src/algorithms/MergeSort.java
new file mode 100644
index 0000000..41ff138
--- /dev/null
+++ b/src/algorithms/MergeSort.java
@@ -0,0 +1,78 @@
+package algorithms;
+
+public class MergeSort extends Algorithm {
+
+	public MergeSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	void algorithm() {
+		sort(arr, 0, arr.length - 1);
+	}
+
+	private void merge(int arr[], int l, int m, int r) {
+		int n1 = m - l + 1;
+		int n2 = r - m;
+
+		int L[] = new int[n1];
+		int R[] = new int[n2];
+
+		for (int i = 0; i < n1; ++i) {
+			cursor = l + i;
+			delay();
+			L[i] = arr[l + i];
+			accesses++;
+		}
+		for (int j = 0; j < n2; ++j) {
+			cursor = m + 1 + j;
+			delay();
+			R[j] = arr[m + 1 + j];
+			accesses++;
+		}
+
+		int i = 0, j = 0;
+
+		int k = l;
+		while (i < n1 && j < n2) {
+			cursor = k;
+			delay();
+			if (L[i] <= R[j]) {
+				arr[k] = L[i];
+				i++;
+			} else {
+				arr[k] = R[j];
+				j++;
+			}
+			comparisons++;
+			accesses++;
+			k++;
+		}
+
+		while (i < n1) {
+			arr[k] = L[i];
+			accesses++;
+			i++;
+			k++;
+		}
+
+		while (j < n2) {
+			arr[k] = R[j];
+			accesses++;
+			j++;
+			k++;
+		}
+	}
+
+	private void sort(int arr[], int l, int r) {
+		if (l < r) {
+			int m = (l + r) / 2;
+
+			sort(arr, l, m);
+			sort(arr, m + 1, r);
+
+			merge(arr, l, m, r);
+		}
+	}
+
+}
diff --git a/src/algorithms/QuickSort.class b/src/algorithms/QuickSort.class
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diff --git a/src/algorithms/QuickSort.ctxt b/src/algorithms/QuickSort.ctxt
new file mode 100644
index 0000000..99f7ed2
--- /dev/null
+++ b/src/algorithms/QuickSort.ctxt
@@ -0,0 +1,11 @@
+#BlueJ class context
+comment0.target=QuickSort
+comment1.params=arr
+comment1.target=QuickSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+comment3.params=arr\ low\ high
+comment3.target=int\ partition(int[],\ int,\ int)
+comment4.params=arr\ low\ high
+comment4.target=void\ sort(int[],\ int,\ int)
+numComments=5
diff --git a/src/algorithms/QuickSort.java b/src/algorithms/QuickSort.java
new file mode 100644
index 0000000..f761bcf
--- /dev/null
+++ b/src/algorithms/QuickSort.java
@@ -0,0 +1,49 @@
+package algorithms;
+
+public class QuickSort extends Algorithm {
+
+	public QuickSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	void algorithm() {
+		sort(arr, 0, arr.length - 1);
+	}
+
+	private int partition(int arr[], int low, int high) {
+		int pivot = arr[high];
+		accesses++;
+		int i = (low - 1);
+		for (int j = low; j < high; j++) {
+			cursor = j;
+			delay();
+			if (arr[j] < pivot) {
+				i++;
+				int temp = arr[i];
+				arr[i] = arr[j];
+				arr[j] = temp;
+				accesses += 4;
+			}
+			comparisons++;
+			accesses++;
+		}
+
+		int temp = arr[i + 1];
+		arr[i + 1] = arr[high];
+		arr[high] = temp;
+		accesses += 4;
+
+		return i + 1;
+	}
+
+	private void sort(int arr[], int low, int high) {
+		if (low < high) {
+			int pi = partition(arr, low, high);
+
+			sort(arr, low, pi - 1);
+			sort(arr, pi + 1, high);
+		}
+	}
+
+}
diff --git a/src/algorithms/RadixSort.class b/src/algorithms/RadixSort.class
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index 0000000..a54f6c8
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diff --git a/src/algorithms/RadixSort.ctxt b/src/algorithms/RadixSort.ctxt
new file mode 100644
index 0000000..8a7f2c8
--- /dev/null
+++ b/src/algorithms/RadixSort.ctxt
@@ -0,0 +1,13 @@
+#BlueJ class context
+comment0.target=RadixSort
+comment1.params=arr
+comment1.target=RadixSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+comment3.params=arr\ n
+comment3.target=int\ getMax(int[],\ int)
+comment4.params=arr\ n\ exp
+comment4.target=void\ countSort(int[],\ int,\ int)
+comment5.params=arr\ n
+comment5.target=void\ radixsort(int[],\ int)
+numComments=6
diff --git a/src/algorithms/RadixSort.java b/src/algorithms/RadixSort.java
new file mode 100644
index 0000000..0865579
--- /dev/null
+++ b/src/algorithms/RadixSort.java
@@ -0,0 +1,70 @@
+package algorithms;
+
+import java.util.Arrays;
+
+public class RadixSort extends Algorithm {
+	
+	int exponent = 2;
+
+	public RadixSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	void algorithm() {
+		radixsort(arr, arr.length);
+	}
+
+	private int getMax(int arr[], int n) {
+		int mx = arr[0];
+		accesses++;
+		for (int i = 1; i < n; i++) {
+			if (arr[i] > mx) {
+				mx = arr[i];
+				accesses++;
+			}
+			accesses++;
+			comparisons++;
+		}
+		return mx;
+	}
+
+	private void countSort(int arr[], int n, int exp) {
+		int output[] = new int[n];
+		int i;
+		int count[] = new int[exponent];
+		Arrays.fill(count, 0);
+
+		for (i = 0; i < n; i++) {
+			cursor = i;
+			delay();
+			count[(arr[i] / exp) % exponent]++;
+			accesses++;
+		}
+
+		for (i = 1; i < exponent; i++) {
+			count[i] += count[i - 1];
+		}
+
+		for (i = n - 1; i >= 0; i--) {
+			output[count[(arr[i] / exp) % exponent] - 1] = arr[i];
+			count[(arr[i] / exp) % exponent]--;
+			accesses += 3;
+		}
+
+		for (i = 0; i < n; i++) {
+			cursor = i;
+			delay();
+			arr[i] = output[i];
+			accesses++;
+		}
+	}
+
+	private void radixsort(int arr[], int n) {
+		int m = getMax(arr, n);
+
+		for (int exp = 1; m / exp > 0; exp *= exponent)
+			countSort(arr, n, exp);
+	}
+
+}
diff --git a/src/algorithms/SelectionSort.class b/src/algorithms/SelectionSort.class
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diff --git a/src/algorithms/SelectionSort.ctxt b/src/algorithms/SelectionSort.ctxt
new file mode 100644
index 0000000..6d1af6f
--- /dev/null
+++ b/src/algorithms/SelectionSort.ctxt
@@ -0,0 +1,7 @@
+#BlueJ class context
+comment0.target=SelectionSort
+comment1.params=arr
+comment1.target=SelectionSort(int[])
+comment2.params=
+comment2.target=void\ algorithm()
+numComments=3
diff --git a/src/algorithms/SelectionSort.java b/src/algorithms/SelectionSort.java
new file mode 100644
index 0000000..8fd6ae0
--- /dev/null
+++ b/src/algorithms/SelectionSort.java
@@ -0,0 +1,31 @@
+package algorithms;
+
+public class SelectionSort extends Algorithm {
+
+	int start;
+
+	public SelectionSort(int[] arr) {
+		super(arr);
+	}
+
+	@Override
+	void algorithm() {
+		while (start < arr.length) {
+			int min = start;
+			for (int i = start; i < arr.length; i++) {
+				cursor = i;
+				delay();
+				if (arr[i] < arr[min]) {
+					min = i;
+				}
+				accesses += 2;
+				comparisons++;
+			}
+			swap(start, min);
+			accesses += 4;
+			
+			start++;
+		}
+	}
+
+}
diff --git a/src/algorithms/package.bluej b/src/algorithms/package.bluej
new file mode 100644
index 0000000..6dbfe6c
--- /dev/null
+++ b/src/algorithms/package.bluej
@@ -0,0 +1,76 @@
+#BlueJ package file
+objectbench.height=128
+objectbench.width=1256
+package.divider.horizontal=0.6
+package.divider.vertical=0.8005908419497785
+package.editor.height=535
+package.editor.width=1145
+package.editor.x=0
+package.editor.y=351
+package.frame.height=776
+package.frame.width=1296
+package.numDependencies=0
+package.numTargets=8
+package.showExtends=true
+package.showUses=true
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+target1.height=50
+target1.name=QuickSort
+target1.showInterface=false
+target1.type=ClassTarget
+target1.width=90
+target1.x=10
+target1.y=80
+target2.height=50
+target2.name=BubbleSort
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=90
+target2.x=100
+target2.y=90
+target3.height=50
+target3.name=RadixSort
+target3.showInterface=false
+target3.type=ClassTarget
+target3.width=90
+target3.x=190
+target3.y=90
+target4.height=50
+target4.name=SelectionSort
+target4.showInterface=false
+target4.type=ClassTarget
+target4.width=110
+target4.x=10
+target4.y=150
+target5.height=50
+target5.name=InsertionSort
+target5.showInterface=false
+target5.type=ClassTarget
+target5.width=110
+target5.x=110
+target5.y=150
+target6.height=50
+target6.name=MergeSort
+target6.showInterface=false
+target6.type=ClassTarget
+target6.width=90
+target6.x=10
+target6.y=210
+target7.height=50
+target7.name=BetterBubbleSort
+target7.showInterface=false
+target7.type=ClassTarget
+target7.width=130
+target7.x=100
+target7.y=210
+target8.height=50
+target8.name=Algorithm
+target8.showInterface=false
+target8.type=AbstractTarget
+target8.width=90
+target8.x=10
+target8.y=270
diff --git a/src/main/SortingAlgorithms2Launcher.class b/src/main/SortingAlgorithms2Launcher.class
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diff --git a/src/main/SortingAlgorithms2Launcher.ctxt b/src/main/SortingAlgorithms2Launcher.ctxt
new file mode 100644
index 0000000..577b2a5
--- /dev/null
+++ b/src/main/SortingAlgorithms2Launcher.ctxt
@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=SortingAlgorithms2Launcher
+comment1.params=args
+comment1.target=void\ main(java.lang.String[])
+numComments=2
diff --git a/src/main/SortingAlgorithms2Launcher.java b/src/main/SortingAlgorithms2Launcher.java
new file mode 100644
index 0000000..51fa4d5
--- /dev/null
+++ b/src/main/SortingAlgorithms2Launcher.java
@@ -0,0 +1,8 @@
+package main;
+
+public class SortingAlgorithms2Launcher {
+
+	public static void main(String[] args) {
+		new Window();
+	}
+}
diff --git a/src/main/Tiles.class b/src/main/Tiles.class
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diff --git a/src/main/Tiles.ctxt b/src/main/Tiles.ctxt
new file mode 100644
index 0000000..95ec88d
--- /dev/null
+++ b/src/main/Tiles.ctxt
@@ -0,0 +1,9 @@
+#BlueJ class context
+comment0.target=Tiles
+comment1.params=algorithm
+comment1.target=Tiles(algorithms.Algorithm)
+comment2.params=g2d\ offsetX\ offsetY\ width\ height
+comment2.target=void\ draw(java.awt.Graphics2D,\ int,\ int,\ int,\ int)
+comment3.params=algo
+comment3.target=java.awt.image.BufferedImage\ makeImageFromAlgorithm(algorithms.Algorithm)
+numComments=4
diff --git a/src/main/Tiles.java b/src/main/Tiles.java
new file mode 100644
index 0000000..07ecc51
--- /dev/null
+++ b/src/main/Tiles.java
@@ -0,0 +1,52 @@
+package main;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+
+import algorithms.Algorithm;
+
+public class Tiles {
+
+	private Algorithm algorithm;
+
+	public Tiles(Algorithm algorithm) {
+		this.algorithm = algorithm;
+
+		this.algorithm.start();
+	}
+
+	public void draw(Graphics2D g2d, int offsetX, int offsetY, int width, int height) {
+		g2d.drawImage(makeImageFromAlgorithm(algorithm), offsetX, offsetY, width, height, null);
+		g2d.setColor(Color.WHITE);
+		g2d.setFont(new Font(Font.MONOSPACED, Font.PLAIN, 14));
+		g2d.drawString("  Algorithm:", 5 + offsetX, 15 + offsetY);
+		g2d.drawString("   Accesses:", 5 + offsetX, 30 + offsetY);
+		g2d.drawString("Comparisons:", 5 + offsetX, 45 + offsetY);
+		g2d.drawString(algorithm.getClass().getSimpleName(), 110 + offsetX, 15 + offsetY);
+		g2d.drawString(algorithm.accesses + "", 110 + offsetX, 30 + offsetY);
+		g2d.drawString(algorithm.comparisons + "", 110 + offsetX, 45 + offsetY);
+	}
+
+	private BufferedImage makeImageFromAlgorithm(Algorithm algo) {
+		int[] arr = algo.getArray();
+		BufferedImage img = new BufferedImage(arr.length, arr.length, 
+				BufferedImage.TYPE_INT_RGB);
+		for (int x = 0; x < arr.length; x++) {
+			for (int y = 0; y < arr[x]; y++) {
+				int c;
+				if (x == algo.getCursor()) {
+					c = Color.RED.getRGB();
+				}else {
+					c = Color.WHITE.getRGB();
+				}
+				if (algo.done) {
+					c = Color.GREEN.getRGB();
+				}
+				img.setRGB(x, arr.length - y - 1, c);
+			}
+		}
+		return img;
+	}
+}
diff --git a/src/main/Window$1.class b/src/main/Window$1.class
new file mode 100644
index 0000000..edd83a4
Binary files /dev/null and b/src/main/Window$1.class differ
diff --git a/src/main/Window.class b/src/main/Window.class
new file mode 100644
index 0000000..dcf97f4
Binary files /dev/null and b/src/main/Window.class differ
diff --git a/src/main/Window.ctxt b/src/main/Window.ctxt
new file mode 100644
index 0000000..1d3ce93
--- /dev/null
+++ b/src/main/Window.ctxt
@@ -0,0 +1,9 @@
+#BlueJ class context
+comment0.target=Window
+comment1.params=
+comment1.target=Window()
+comment2.params=g2d
+comment2.target=void\ frameLoop(java.awt.Graphics2D)
+comment3.params=g2d
+comment3.target=void\ loop(java.awt.Graphics2D)
+numComments=4
diff --git a/src/main/Window.java b/src/main/Window.java
new file mode 100644
index 0000000..7b56f92
--- /dev/null
+++ b/src/main/Window.java
@@ -0,0 +1,85 @@
+package main;
+
+import java.awt.Graphics2D;
+import java.util.ArrayList;
+
+import algorithms.BetterBubbleSort;
+import algorithms.BubbleSort;
+import algorithms.InsertionSort;
+import algorithms.MergeSort;
+import algorithms.QuickSort;
+import algorithms.RadixSort;
+import algorithms.SelectionSort;
+import graphics.Frame;
+
+public class Window {
+
+	private Frame frame;
+	private ArrayList<Tiles> tiles;
+	
+	public Window() {
+		
+		frame = new Frame() {
+			@Override
+			public void frameLoop(Graphics2D g2d) {
+				loop(g2d);
+			}
+		};
+		frame.setTitle("Sorting Algorithms");
+		
+		int[] arr = new int[50];
+		
+		for (int i = 0; i < arr.length; i++) {
+			arr[i] = i;
+		}
+		for (int i = 0; i < arr.length; i++) {
+			int rand = (int) (Math.random() * arr.length);
+			int temp = arr[i];
+			arr[i] = arr[rand];
+			arr[rand] = temp;
+		}
+		
+		tiles = new ArrayList<Tiles>();
+		tiles.add(new Tiles(new BubbleSort(arr)));
+		tiles.add(new Tiles(new BetterBubbleSort(arr)));
+		tiles.add(new Tiles(new SelectionSort(arr)));
+		tiles.add(new Tiles(new InsertionSort(arr)));
+		tiles.add(new Tiles(new MergeSort(arr)));
+		tiles.add(new Tiles(new QuickSort(arr)));
+		tiles.add(new Tiles(new RadixSort(arr)));
+		
+		frame.startLoop();
+	}
+	
+	private void loop(Graphics2D g2d) {
+		
+		int countX = 1;
+		int countY = 1;
+		
+		switch (tiles.size()) {
+		case 1:
+		case 2:
+		case 3:
+			countX = tiles.size();
+			break;
+		case 4:
+			countX = 2;
+			countY = 2;
+			break;
+		case 5:
+		case 6:
+		case 7:
+		case 8:
+		case 9:
+			countX = 3;
+			countY = 3;
+		}
+
+		int width = frame.getWidth() / countX;
+		int height = frame.getHeight() / countY;
+		
+		for (int i = 0; i < tiles.size(); i++) {
+			tiles.get(i).draw(g2d, width * (i % countX), height * ((i - (i % countX)) / countY), width, height);
+		}
+	}
+}
diff --git a/src/main/package.bluej b/src/main/package.bluej
new file mode 100644
index 0000000..ea92c3c
--- /dev/null
+++ b/src/main/package.bluej
@@ -0,0 +1,47 @@
+#BlueJ package file
+dependency1.from=SortingAlgorithms2Launcher
+dependency1.to=Window
+dependency1.type=UsesDependency
+dependency2.from=Window
+dependency2.to=Tiles
+dependency2.type=UsesDependency
+objectbench.height=93
+objectbench.width=760
+package.divider.horizontal=0.6
+package.divider.vertical=0.8003992015968064
+package.editor.height=394
+package.editor.width=649
+package.editor.x=190
+package.editor.y=171
+package.frame.height=600
+package.frame.width=800
+package.numDependencies=2
+package.numTargets=3
+package.showExtends=true
+package.showUses=true
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+target1.height=50
+target1.name=Window
+target1.showInterface=false
+target1.type=ClassTarget
+target1.width=80
+target1.x=70
+target1.y=60
+target2.height=50
+target2.name=Tiles
+target2.showInterface=false
+target2.type=ClassTarget
+target2.width=80
+target2.x=310
+target2.y=80
+target3.height=50
+target3.name=SortingAlgorithms2Launcher
+target3.showInterface=false
+target3.type=ClassTarget
+target3.width=200
+target3.x=180
+target3.y=240
diff --git a/src/package.bluej b/src/package.bluej
new file mode 100644
index 0000000..2acca5f
--- /dev/null
+++ b/src/package.bluej
@@ -0,0 +1,37 @@
+#BlueJ package file
+editor.fx.0.height=776
+editor.fx.0.width=1296
+editor.fx.0.x=-53
+editor.fx.0.y=99
+objectbench.height=93
+objectbench.width=760
+package.divider.horizontal=0.6
+package.divider.vertical=0.8003992015968064
+package.editor.height=394
+package.editor.width=649
+package.editor.x=258
+package.editor.y=154
+package.frame.height=600
+package.frame.width=800
+package.numDependencies=0
+package.numTargets=2
+package.showExtends=true
+package.showUses=true
+project.charset=windows-1252
+readme.height=58
+readme.name=@README
+readme.width=47
+readme.x=10
+readme.y=10
+target1.height=62
+target1.name=algorithms
+target1.type=PackageTarget
+target1.width=80
+target1.x=90
+target1.y=10
+target2.height=62
+target2.name=main
+target2.type=PackageTarget
+target2.width=80
+target2.x=180
+target2.y=10