static void Main(string[] args)
{
Random random = new Random();
int test = 10;
Console.WriteLine("You are runnning the Data Structures example.");
Console.WriteLine("======================================================");
Console.WriteLine();
#region Link (aka Tuple)
Console.WriteLine(" Link------------------------------------");
Console.WriteLine();
Console.WriteLine(" A \"Link\" is like a System.Tuple that implements");
Console.WriteLine(" Towel.DataStructures.DataStructure. A Link/Tuple is");
Console.WriteLine(" used when you have a small, known-sized set of objects");
Console.WriteLine(" that you want to bundle together without making a custom");
Console.WriteLine(" custom class.");
Console.WriteLine();
Link link = new Link <int, int, int, int, int, int>(0, 1, 2, 3, 4, 5);
Console.Write(" Traversal: ");
link.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" Size: " + link.Size);
Console.WriteLine();
#endregion
#region Indexed (aka Array)
Console.WriteLine(" Indexed---------------------------------");
Console.WriteLine();
Console.WriteLine(" An \"Indexed\" is just a wrapper for arrays that implements");
Console.WriteLine(" Towel.DataStructures.DataStructure. An array is used when");
Console.WriteLine(" dealing with static-sized, known-sized sets of data. Arrays");
Console.WriteLine(" can be sorted along 1 dimensions for binary searching algorithms.");
Console.WriteLine();
IIndexed <int> indexed = new IndexedArray <int>(test);
Console.Write(" Filling in (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
indexed[i] = i;
}
Console.WriteLine();
Console.Write(" Traversal: ");
indexed.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" Length: " + indexed.Length);
Console.WriteLine();
#endregion
#region Addable (aka List)
Console.WriteLine(" Addable---------------------------------");
Console.WriteLine();
Console.WriteLine(" An \"Addable\" is like an IList that implements");
Console.WriteLine(" Towel.DataStructures.DataStructure. \"AddableArray\" is");
Console.WriteLine(" the array implementation while \"AddableLinked\" is the");
Console.WriteLine(" the linked-list implementation. An Addable/List is used");
Console.WriteLine(" when dealing with an unknown quantity of data that you");
Console.WriteLine(" will likely have to enumerate/step through everything. The");
Console.WriteLine(" AddableArray shares the properties of an Indexed/Array in");
Console.WriteLine(" that it can be relateively quickly sorted along 1 dimensions");
Console.WriteLine(" for binary search algorithms.");
Console.WriteLine();
// AddableArray ---------------------------------------
IAddable <int> addableArray = new AddableArray <int>(test);
Console.Write(" [AddableArray] Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
addableArray.Add(i);
}
Console.WriteLine();
Console.Write(" [AddableArray] Traversal: ");
addableArray.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" [AddableArray] Count: " + addableArray.Count);
addableArray.Clear(); // Clears the addable
Console.WriteLine();
// AddableLinked ---------------------------------------
IAddable <int> addableLinked = new AddableLinked <int>();
Console.Write(" [AddableLinked] Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
addableLinked.Add(i);
}
Console.WriteLine();
Console.Write(" [AddableLinked] Traversal: ");
addableLinked.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" [AddableLinked] Count: " + addableLinked.Count);
addableLinked.Clear(); // Clears the addable
Console.WriteLine();
#endregion
#region FirstInLastOut (aka stack)
{
Console.WriteLine(" FirstInLastOut---------------------------------");
Console.WriteLine();
Console.WriteLine(" An \"FirstInLastOut\" is a Stack that implements");
Console.WriteLine(" Towel.DataStructures.DataStructure. \"FirstInLastOutArray\" is");
Console.WriteLine(" the array implementation while \"FirstInLastOutLinked\" is the");
Console.WriteLine(" the linked-list implementation. A FirstInLastOut/Stack is used");
Console.WriteLine(" specifically when you need the algorithm provided by the Push");
Console.WriteLine(" and Pop functions.");
Console.WriteLine();
IFirstInLastOut <int> firstInLastOutArray = new FirstInLastOutArray <int>();
Console.Write(" [FirstInLastOutArray] Pushing (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
firstInLastOutArray.Push(i);
}
Console.WriteLine();
Console.Write(" [FirstInLastOutArray] Traversal: ");
firstInLastOutArray.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" [FirstInLastOutArray] Pop: " + firstInLastOutArray.Pop());
Console.WriteLine(" [FirstInLastOutArray] Pop: " + firstInLastOutArray.Pop());
Console.WriteLine(" [FirstInLastOutArray] Peek: " + firstInLastOutArray.Peek());
Console.WriteLine(" [FirstInLastOutArray] Pop: " + firstInLastOutArray.Pop());
Console.WriteLine(" [FirstInLastOutArray] Count: " + firstInLastOutArray.Count);
firstInLastOutArray.Clear(); // Clears the firstInLastOut
Console.WriteLine();
IFirstInLastOut <int> firstInLastOutLinked = new FirstInLastOutLinked <int>();
Console.Write(" [FirstInLastOutLinked] Pushing (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
firstInLastOutLinked.Push(i);
}
Console.WriteLine();
Console.Write(" [FirstInLastOutLinked] Traversal: ");
firstInLastOutLinked.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" [FirstInLastOutLinked] Pop: " + firstInLastOutLinked.Pop());
Console.WriteLine(" [FirstInLastOutLinked] Pop: " + firstInLastOutLinked.Pop());
Console.WriteLine(" [FirstInLastOutLinked] Peek: " + firstInLastOutLinked.Peek());
Console.WriteLine(" [FirstInLastOutLinked] Pop: " + firstInLastOutLinked.Pop());
Console.WriteLine(" [FirstInLastOutLinked] Count: " + firstInLastOutLinked.Count);
firstInLastOutLinked.Clear(); // Clears the firstInLastOut
Console.WriteLine();
}
#endregion
#region FirstInFirstOut (aka Queue)
{
Console.WriteLine(" FirstInFirstOut---------------------------------");
Console.WriteLine();
Console.WriteLine(" An \"FirstInFirstOut\" is a Queue that implements");
Console.WriteLine(" Towel.DataStructures.DataStructure. \"FirstInFirstOutArray\" is");
Console.WriteLine(" the array implementation while \"FirstInFirstOutLinked\" is the");
Console.WriteLine(" the linked-list implementation. A FirstInFirstOut/Stack is used");
Console.WriteLine(" specifically when you need the algorithm provided by the Queue");
Console.WriteLine(" and Dequeue functions.");
Console.WriteLine();
IFirstInFirstOut <int> firstInFirstOutArray = new FirstInFirstOutArray <int>();
Console.Write(" [FirstInFirstOutArray] Enqueuing (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
firstInFirstOutArray.Enqueue(i);
}
Console.WriteLine();
Console.Write(" [FirstInFirstOutArray] Traversal: ");
firstInFirstOutArray.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" [FirstInFirstOutArray] Dequeue: " + firstInFirstOutArray.Dequeue());
Console.WriteLine(" [FirstInFirstOutArray] Dequeue: " + firstInFirstOutArray.Dequeue());
Console.WriteLine(" [FirstInFirstOutArray] Peek: " + firstInFirstOutArray.Peek());
Console.WriteLine(" [FirstInFirstOutArray] Dequeue: " + firstInFirstOutArray.Dequeue());
Console.WriteLine(" [FirstInFirstOutArray] Count: " + firstInFirstOutArray.Count);
firstInFirstOutArray.Clear(); // Clears the firstInLastOut
Console.WriteLine();
IFirstInFirstOut <int> firstInFirstOutLinked = new FirstInFirstOutLinked <int>();
Console.Write(" [FirstInFirstOutLinked] Enqueuing (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
firstInFirstOutLinked.Enqueue(i);
}
Console.WriteLine();
Console.Write(" [FirstInFirstOutLinked] Traversal: ");
firstInFirstOutLinked.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" [FirstInFirstOutLinked] Pop: " + firstInFirstOutLinked.Dequeue());
Console.WriteLine(" [FirstInFirstOutLinked] Pop: " + firstInFirstOutLinked.Dequeue());
Console.WriteLine(" [FirstInFirstOutLinked] Peek: " + firstInFirstOutLinked.Peek());
Console.WriteLine(" [FirstInFirstOutLinked] Pop: " + firstInFirstOutLinked.Dequeue());
Console.WriteLine(" [FirstInFirstOutLinked] Count: " + firstInFirstOutLinked.Count);
firstInFirstOutLinked.Clear(); // Clears the firstInLastOut
Console.WriteLine();
}
#endregion
#region Heap
{
Console.WriteLine(" Heap---------------------------------");
Console.WriteLine();
Console.WriteLine(" An \"Heap\" is a binary tree that stores items based on priorities.");
Console.WriteLine(" It implements Towel.DataStructures.DataStructure like the others.");
Console.WriteLine(" It uses sifting algorithms to move nodes vertically through itself.");
Console.WriteLine(" It is often the best data structure for standard priority queues.");
Console.WriteLine(" \"HeapArray\" is an implementation where the tree has been flattened");
Console.WriteLine(" into an array.");
Console.WriteLine();
Console.WriteLine(" Let's say the priority is how close a number is to \"5\".");
Console.WriteLine(" So \"Dequeue\" will give us the next closest value to \"5\".");
Comparison Priority(int a, int b)
{
int _a = Compute.AbsoluteValue(a - 5);
int _b = Compute.AbsoluteValue(b - 5);
Comparison comparison = Compare.Wrap(_b.CompareTo(_a));
return(comparison);
}
Console.WriteLine();
IHeap <int> heapArray = new HeapArray <int>(Priority);
Console.Write(" [HeapArray] Enqueuing (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
heapArray.Enqueue(i);
}
Console.WriteLine();
Console.WriteLine(" [HeapArray] Dequeue: " + heapArray.Dequeue());
Console.WriteLine(" [HeapArray] Dequeue: " + heapArray.Dequeue());
Console.WriteLine(" [HeapArray] Peek: " + heapArray.Peek());
Console.WriteLine(" [HeapArray] Dequeue: " + heapArray.Dequeue());
Console.WriteLine(" [HeapArray] Count: " + heapArray.Count);
heapArray.Clear(); // Clears the heapArray
Console.WriteLine();
}
#endregion
#region Tree
//Console.WriteLine(" Tree-----------------------------");
//Tree<int> tree_Map = new TreeMap<int>(0, Compute.Equal, Hash.Default);
//for (int i = 1; i < test; i++)
//{
// tree_Map.Add(i, i / Compute.SquareRoot(i));
//}
//Console.Write(" Children of 0 (root): ");
//tree_Map.Children(0, (int i) => { Console.Write(i + " "); });
//Console.WriteLine();
//Console.Write(" Children of " + ((int)System.Math.Sqrt(test) - 1) + " (root): ");
//tree_Map.Children(((int)System.Math.Sqrt(test) - 1), (int i) => { Console.Write(i + " "); });
//Console.WriteLine();
//Console.Write(" Traversal: ");
//tree_Map.Stepper((int i) => { Console.Write(i + " "); });
//Console.WriteLine();
//Console.WriteLine();
#endregion
#region AVL Tree
{
Console.WriteLine(" AvlTree------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" An AVL Tree is a sorted binary tree.");
Console.WriteLine(" It implements Towel.DataStructures.DataStructure like the others.");
Console.WriteLine(" It allows for very fast 1D ranged queries/traversals.");
Console.WriteLine(" It is very similar to an Red Black tree, but uses a different sorting algorithm.");
Console.WriteLine();
IAvlTree <int> avlTree = new AvlTreeLinked <int>();
Console.Write(" Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
avlTree.Add(i);
}
Console.WriteLine();
Console.Write(" Traversal: ");
avlTree.Stepper(i => Console.Write(i));
Console.WriteLine();
//// Note: Because the nodes in AVL Tree linked do not have
//// a parent pointer, the IEnumerable "foreach" iteration
//// is extremely slow and should be avoided. It requires
//// a stack for it's iteration.
//
//Console.Write(" Traversal Foreach: ");
//foreach (int i in avlTree)
//{
// Console.Write(i);
//}
//Console.WriteLine();
int minimum = random.Next(1, test / 2);
int maximum = random.Next(1, test / 2) + test / 2;
Console.Write(" Ranged Traversal [" + minimum + "-" + maximum + "]: ");
avlTree.Stepper(i => Console.Write(i), minimum, maximum);
Console.WriteLine();
int removal = random.Next(0, test);
Console.Write(" Remove(" + removal + "): ");
avlTree.Remove(removal);
avlTree.Stepper(i => Console.Write(i));
Console.WriteLine();
int contains = random.Next(0, test);
Console.WriteLine(" Contains(" + contains + "): " + avlTree.Contains(contains));
Console.WriteLine(" Current Least: " + avlTree.CurrentLeast);
Console.WriteLine(" Current Greatest: " + avlTree.CurrentGreatest);
Console.WriteLine(" Count: " + avlTree.Count);
avlTree.Clear(); // Clears the AVL tree
Console.WriteLine();
}
#endregion
#region Red-Black Tree
{
Console.WriteLine(" Red-Black Tree------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" An Red-Black Tree is a sorted binary tree.");
Console.WriteLine(" It implements Towel.DataStructures.DataStructure like the others.");
Console.WriteLine(" It allows for very fast 1D ranged queries/traversals.");
Console.WriteLine(" It is very similar to an AVL tree, but uses a different sorting algorithm.");
Console.WriteLine();
IRedBlackTree <int> redBlackTree = new RedBlackTreeLinked <int>();
Console.Write(" Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
redBlackTree.Add(i);
}
Console.WriteLine();
Console.Write(" Traversal: ");
redBlackTree.Stepper(i => Console.Write(i));
Console.WriteLine();
int minimum = random.Next(1, test / 2);
int maximum = random.Next(1, test / 2) + test / 2;
Console.Write(" Ranged Traversal [" + minimum + "-" + maximum + "]: ");
redBlackTree.Stepper(i => Console.Write(i), minimum, maximum);
Console.WriteLine();
int removal = random.Next(0, test);
Console.Write(" Remove(" + removal + "): ");
redBlackTree.Remove(removal);
redBlackTree.Stepper(i => Console.Write(i));
Console.WriteLine();
int contains = random.Next(0, test);
Console.WriteLine(" Contains(" + contains + "): " + redBlackTree.Contains(contains));
Console.WriteLine(" Current Least: " + redBlackTree.CurrentLeast);
Console.WriteLine(" Current Greatest: " + redBlackTree.CurrentGreatest);
Console.WriteLine(" Count: " + redBlackTree.Count);
redBlackTree.Clear(); // Clears the Red Black tree
Console.WriteLine();
}
#endregion
#region BTree
{
Console.WriteLine(" B Tree------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" A B Tree is a sorted binary tree that allows multiple values to");
Console.WriteLine(" be stored per node. This makes it sort of a hybrid between a");
Console.WriteLine(" binary tree and an array. Because multiple values are stored ");
Console.WriteLine(" per node, it means less nodes must be traversed to completely");
Console.WriteLine(" traverse the values in the B tree.");
Console.WriteLine();
Console.WriteLine(" The generic B Tree in Towel is still in development.");
Console.WriteLine();
}
#endregion
#region Set
{
Console.WriteLine(" Set------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" A Set is like an Addable/List, but it does not allow duplicates. Sets are");
Console.WriteLine(" usually implemented using hash codes. Implementations with hash codes");
Console.WriteLine(" usually have very fast \"Contains\" checks to see if a value has already");
Console.WriteLine(" been added to the set.");
Console.WriteLine();
ISet <int> setHashLinked = new SetHashLinked <int>();
Console.Write(" Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
setHashLinked.Add(i);
}
Console.WriteLine();
Console.Write(" Traversal: ");
setHashLinked.Stepper(i => Console.Write(i));
Console.WriteLine();
int a = random.Next(0, test);
setHashLinked.Remove(a);
Console.Write(" Remove(" + a + "): ");
setHashLinked.Stepper(i => Console.Write(i));
Console.WriteLine();
int b = random.Next(0, test);
Console.WriteLine(" Contains(" + b + "): " + setHashLinked.Contains(b));
Console.WriteLine(" Count: " + setHashLinked.Count);
Console.WriteLine();
}
#endregion
#region Map (aka Dictionary)
{
Console.WriteLine(" Map------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" A Map (aka Dictionary) is similar to a Set, but it stores two values (a ");
Console.WriteLine(" key and a value). Maps do not allow duplicate keys much like Sets don't");
Console.WriteLine(" allow duplicate values. When provided with the key, the Map uses that key");
Console.WriteLine(" to look up the value that it is associated with. Thus, it allows you to ");
Console.WriteLine(" \"map\" one object to another. As with Sets, Maps are usually implemented");
Console.WriteLine(" using hash codes.");
Console.WriteLine();
// Note: the first generic is the value, the second is the key
IMap <string, int> mapHashLinked = new MapHashLinked <string, int>();
Console.WriteLine(" Let's map each int to its word representation (ex 1 -> One).");
Console.Write(" Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
mapHashLinked.Add(i, ((decimal)i).ToEnglishWords());
}
Console.WriteLine();
Console.WriteLine(" Traversal: ");
mapHashLinked.Keys(i => Console.WriteLine(" " + i + "->" + mapHashLinked[i]));
Console.WriteLine();
int a = random.Next(0, test);
mapHashLinked.Remove(a);
Console.Write(" Remove(" + a + "): ");
mapHashLinked.Keys(i => Console.Write(i));
Console.WriteLine();
int b = random.Next(0, test);
Console.WriteLine(" Contains(" + b + "): " + mapHashLinked.Contains(b));
Console.WriteLine(" Count: " + mapHashLinked.Count);
Console.WriteLine();
}
#endregion
#region OmnitreePoints
{
Console.WriteLine(" OmnitreePoints--------------------------------------");
Console.WriteLine();
Console.WriteLine(" An Omnitree is an ND SPT that allows for");
Console.WriteLine(" multidimensional sorting. Any time you need to look");
Console.WriteLine(" items up based on multiple fields/properties, then");
Console.WriteLine(" you might want to use an Omnitree. If you need to");
Console.WriteLine(" perform ranged queries on multiple dimensions, then");
Console.WriteLine(" the Omnitree is the data structure for you.");
Console.WriteLine();
Console.WriteLine(" The \"OmnitreePoints\" stores individual points (vectors),");
Console.WriteLine(" and the \"OmnitreeBounds\" stores bounded objects (spaces).");
Console.WriteLine();
IOmnitreePoints <int, double, string, decimal> omnitree =
new OmnitreePointsLinked <int, double, string, decimal>(
// This is a location delegate. (how to locate the item along each dimension)
(int index, out double a, out string b, out decimal c) =>
{
a = index;
b = index.ToString();
c = index;
});
Console.Write(" Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
omnitree.Add(i);
}
Console.WriteLine();
Console.Write(" Traversal: ");
omnitree.Stepper(i => Console.Write(i));
Console.WriteLine();
int minimumXZ = random.Next(1, test / 2);
int maximumXZ = random.Next(1, test / 2) + test / 2;
string minimumY = minimumXZ.ToString();
string maximumY = maximumXZ.ToString();
Console.Write(" Spacial Traversal [" +
"(" + minimumXZ + ", \"" + minimumY + "\", " + minimumXZ + ")->" +
"(" + maximumXZ + ", \"" + maximumY + "\", " + maximumXZ + ")]: ");
omnitree.Stepper(i => Console.Write(i),
minimumXZ, maximumXZ,
minimumY, maximumY,
minimumXZ, maximumXZ);
Console.WriteLine();
// Note: this "look up" is just a very narrow spacial query that (since we know the data)
// wil only give us one result.
int lookUp = random.Next(0, test);
string lookUpToString = lookUp.ToString();
Console.Write(" Look Up (" + lookUp + ", \"" + lookUpToString + "\", " + lookUp + "): ");
omnitree.Stepper(i => Console.Write(i),
lookUp, lookUp,
lookUp.ToString(), lookUp.ToString(),
lookUp, lookUp);
Console.WriteLine();
// Ignoring dimensions on traversals example.
// If you want to ignore a column on a traversal, you can do so like this:
omnitree.Stepper(i => { /*Do Nothing*/ },
lookUp, lookUp,
Omnitree.Bound <string> .None, Omnitree.Bound <string> .None,
Omnitree.Bound <decimal> .None, Omnitree.Bound <decimal> .None);
Console.Write(" Counting Items In a Space [" +
"(" + minimumXZ + ", \"" + minimumY + "\", " + minimumXZ + ")->" +
"(" + maximumXZ + ", \"" + maximumY + "\", " + maximumXZ + ")]: ");
omnitree.CountSubSpace(
minimumXZ, maximumXZ,
minimumY, maximumY,
minimumXZ, maximumXZ);
Console.WriteLine();
int removalMinimum = random.Next(1, test / 2);
int removalMaximum = random.Next(1, test / 2) + test / 2;
string removalMinimumY = removalMinimum.ToString();
string removalMaximumY = removalMaximum.ToString();
Console.Write(" Remove (" + removalMinimum + "-" + removalMaximum + "): ");
omnitree.Remove(
removalMinimum, removalMaximum,
removalMinimumY, removalMaximumY,
removalMinimum, removalMaximum);
omnitree.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" Dimensions: " + omnitree.Dimensions);
Console.WriteLine(" Count: " + omnitree.Count);
omnitree.Clear(); // Clears the Omnitree
Console.WriteLine();
}
#endregion
#region OmnitreeBounds
{
Console.WriteLine(" OmnitreeBounds--------------------------------------");
Console.WriteLine();
Console.WriteLine(" An Omnitree is an ND SPT that allows for");
Console.WriteLine(" multidimensional sorting. Any time you need to look");
Console.WriteLine(" items up based on multiple fields/properties, then");
Console.WriteLine(" you might want to use an Omnitree. If you need to");
Console.WriteLine(" perform ranged queries on multiple dimensions, then");
Console.WriteLine(" the Omnitree is the data structure for you.");
Console.WriteLine();
Console.WriteLine(" The \"OmnitreePoints\" stores individual points (vectors),");
Console.WriteLine(" and the \"OmnitreeBounds\" stores bounded objects (spaces).");
Console.WriteLine();
IOmnitreeBounds <int, double, string, decimal> omnitree =
new OmnitreeBoundsLinked <int, double, string, decimal>(
// This is a location delegate. (how to locate the item along each dimension)
(int index,
out double min1, out double max1,
out string min2, out string max2,
out decimal min3, out decimal max3) =>
{
string indexToString = index.ToString();
min1 = index; max1 = index;
min2 = indexToString; max2 = indexToString;
min3 = index; max3 = index;
});
Console.Write(" Adding (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
omnitree.Add(i);
}
Console.WriteLine();
Console.Write(" Traversal: ");
omnitree.Stepper(i => Console.Write(i));
Console.WriteLine();
int minimumXZ = random.Next(1, test / 2);
int maximumXZ = random.Next(1, test / 2) + test / 2;
string minimumY = minimumXZ.ToString();
string maximumY = maximumXZ.ToString();
Console.Write(" Spacial Traversal [" +
"(" + minimumXZ + ", \"" + minimumY + "\", " + minimumXZ + ")->" +
"(" + maximumXZ + ", \"" + maximumY + "\", " + maximumXZ + ")]: ");
omnitree.StepperOverlapped(i => Console.Write(i),
minimumXZ, maximumXZ,
minimumY, maximumY,
minimumXZ, maximumXZ);
Console.WriteLine();
// Note: this "look up" is just a very narrow spacial query that (since we know the data)
// wil only give us one result.
int lookUpXZ = random.Next(0, test);
string lookUpY = lookUpXZ.ToString();
Console.Write(" Look Up (" + lookUpXZ + ", \"" + lookUpY + "\", " + lookUpXZ + "): ");
omnitree.StepperOverlapped(i => Console.Write(i),
lookUpXZ, lookUpXZ,
lookUpY, lookUpY,
lookUpXZ, lookUpXZ);
Console.WriteLine();
// Ignoring dimensions on traversals example.
// If you want to ignore a dimension on a traversal, you can do so like this:
omnitree.StepperOverlapped(i => { /*Do Nothing*/ },
lookUpXZ, lookUpXZ,
// The "None" means there is no bound, so all values are valid
Omnitree.Bound <string> .None, Omnitree.Bound <string> .None,
Omnitree.Bound <decimal> .None, Omnitree.Bound <decimal> .None);
Console.Write(" Counting Items In a Space [" +
"(" + minimumXZ + ", \"" + minimumY + "\", " + minimumXZ + ")->" +
"(" + maximumXZ + ", \"" + maximumY + "\", " + maximumXZ + ")]: " +
omnitree.CountSubSpaceOverlapped(
minimumXZ, maximumXZ,
minimumY, maximumY,
minimumXZ, maximumXZ));
Console.WriteLine();
int removalMinimumXZ = random.Next(1, test / 2);
int removalMaximumXZ = random.Next(1, test / 2) + test / 2;
string removalMinimumY = removalMinimumXZ.ToString();
string removalMaximumY = removalMaximumXZ.ToString();
Console.Write(" Remove (" + removalMinimumXZ + "-" + removalMaximumXZ + "): ");
omnitree.RemoveOverlapped(
removalMinimumXZ, removalMaximumXZ,
removalMinimumY, removalMaximumY,
removalMinimumXZ, removalMaximumXZ);
omnitree.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" Dimensions: " + omnitree.Dimensions);
Console.WriteLine(" Count: " + omnitree.Count);
omnitree.Clear(); // Clears the Omnitree
Console.WriteLine();
}
#endregion
#region KD Tree
{
Console.WriteLine(" KD Tree------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" A KD Tree binary tree that stores points sorted along along an");
Console.WriteLine(" arbitrary number of dimensions. So it performs multidimensional");
Console.WriteLine(" sorting similar to the Omnitree (Quadtree/Octree) in Towel, but");
Console.WriteLine(" it uses a completely different algorithm and format.");
Console.WriteLine();
Console.WriteLine(" The generic KD Tree in Towel is still in development.");
Console.WriteLine();
}
#endregion
#region Graph
{
Console.WriteLine(" Graph------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" A Graph is a data structure of nodes and edges. Nodes are values");
Console.WriteLine(" and edges are connections between those values. Graphs are often");
Console.WriteLine(" used to model real world data such as maps, and are often used in");
Console.WriteLine(" path finding algoritms. See the \"Algorithms\" example for path");
Console.WriteLine(" finding examples. This is just an example of how to make a graph.");
Console.WriteLine(" A \"GraphSetOmnitree\" is an implementation where nodes are stored.");
Console.WriteLine(" in a Set and edges are stored in an Omnitree (aka Quadtree).");
Console.WriteLine();
IGraph <int> graphSetOmnitree = new GraphSetOmnitree <int>();
Console.WriteLine(" Adding Nodes (0-" + (test - 1) + ")...");
for (int i = 0; i < test; i++)
{
graphSetOmnitree.Add(i);
}
int edgesPerNode = 3;
Console.WriteLine(" Adding Random Edges (0-3 per node)...");
for (int i = 0; i < test; i++)
{
// lets use a heap to randomize the edges using random priorities
IHeap <(int, int)> heap = new HeapArray <(int, int)>((x, y) => Compare.Wrap(x.Item2.CompareTo(y.Item2)));
for (int j = 0; j < test; j++)
{
if (j != i)
{
heap.Enqueue((j, random.Next()));
}
}
// dequeue some random edges from the heap and add them to the graph
int randomEdgeCount = random.Next(edgesPerNode + 1);
for (int j = 0; j < randomEdgeCount; j++)
{
graphSetOmnitree.Add(i, heap.Dequeue().Item1);
}
}
Console.Write(" Nodes (Traversal): ");
graphSetOmnitree.Stepper(i => Console.Write(i));
Console.WriteLine();
Console.WriteLine(" Edges (Traversal): ");
graphSetOmnitree.Stepper((from, to) => Console.WriteLine(" " + from + "->" + to));
Console.WriteLine();
int a = random.Next(0, test);
Console.Write(" Neighbors (" + a + "):");
graphSetOmnitree.Neighbors(a, i => Console.Write(" " + i));
Console.WriteLine();
int b = random.Next(0, test / 2);
int c = random.Next(test / 2, test);
Console.WriteLine(" Are Adjacent (" + b + ", " + c + "): " + graphSetOmnitree.Adjacent(b, c));
Console.WriteLine(" Node Count: " + graphSetOmnitree.NodeCount);
Console.WriteLine(" Edge Count: " + graphSetOmnitree.EdgeCount);
graphSetOmnitree.Clear(); // Clears the graph
Console.WriteLine();
}
#endregion
#region Trie
{
Console.WriteLine(" Trie------------------------------------------------");
Console.WriteLine();
Console.WriteLine(" A Trie is a tree where portions of the data are stored in each node");
Console.WriteLine(" such that when you traverse the tree to a leaf, you have read the contents");
Console.WriteLine(" of that leaf along the way. Because of this, a Trie allows for its values");
Console.WriteLine(" to share data, which is a form of compression. So a Trie may be used to save");
Console.WriteLine(" memory. A trie may also be a very useful tool in pattern matching, because it");
Console.WriteLine(" it allows for culling based are portions of the data.");
Console.WriteLine();
Console.WriteLine(" The generic Trie in Towel is still in development.");
Console.WriteLine();
}
#endregion
Console.WriteLine("============================================");
Console.WriteLine("Examples Complete...");
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("Welcome To SevenFramework! :)");
Console.WriteLine();
Console.WriteLine("You are runnning the Algorithms tutorial.");
Console.WriteLine("======================================================");
Console.WriteLine();
#region Sorting
Console.WriteLine("Sorting Algorithms----------------------");
Console.WriteLine();
int[] dataSet = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
Console.Write("Data Set:");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
// if you want to sort non-array types, see the overloads using Get<int> and Assign<int>
// Delegates
//Get<int> get = (int index) => { return dataSet[index]; };
//Assign<int> assign = (int index, int value) => { dataSet[index] = value; };
// Shuffling (Randomizing)
Sort <int> .Shuffle(dataSet);
Console.Write("Shuffle (Randomizing): ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
// Bubble
Sort <int> .Bubble(dataSet);
Console.Write("Bubble: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine("shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Selection
Sort <int> .Selection(dataSet);
Console.Write("Selection: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine("shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Insertion
Sort <int> .Insertion(dataSet);
Console.Write("Insertion: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine("shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Quick
Sort <int> .Quick(dataSet);
Console.Write("Quick: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine("shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Merge
Sort <int> .Merge(Compute <int> .Compare, dataSet);
Console.Write("Merge: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine("shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Heap
Sort <int> .Heap(Compute <int> .Compare, dataSet);
Console.Write("Heap: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine("shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// OddEven
Sort <int> .OddEven(Compute <int> .Compare, dataSet);
Console.Write("OddEven: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
//Sort<int>.Shuffle(get, set, 0, dataSet.Length);
//// Slow
//Sort<int>.Slow(Logic.compare, get, set, 0, dataSet.Length);
//Console.Write("Slow: ");
//Console.Write(dataSet[0]);
//for (int i = 1; i < dataSet.Length; i++)
// Console.Write(", " + dataSet[i]);
//Console.WriteLine();
Sort <int> .Shuffle(dataSet);
// Bogo
//Sort<int>.Bogo(Logic.compare, get, set, 0, dataSet.Length);
Console.Write("Bogo: Enable (uncomment) in Source Code");
//Console.Write(dataSet[0]);
//for (int i = 1; i < dataSet.Length; i++)
// Console.Write(", " + dataSet[i]);
//Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
#endregion
#region Graph Search
Console.WriteLine("Graph Searching----------------------");
Console.WriteLine();
// make a graph
Graph <int> graph = new GraphSetOmnitree <int>(
Compute <int> .Compare,
Hash.Default,
0, 3,
(int l, int r) => { return((l + r) / 2); });
// add nodes
graph.Add(0);
graph.Add(1);
graph.Add(2);
graph.Add(3);
// add edges
graph.Add(0, 1);
graph.Add(0, 2);
graph.Add(1, 3);
graph.Add(2, 3);
//// represent a graph
//// Note: can be any type (doesn't have to be int?[,])
//int?[,] adjacencyMatrix =
//{
// { null, 1, 2, null },
// { null, null, null, 5 },
// { null, null, null, 1 },
// { null, null, null, null }
//};
// make a delegate for finding neighbor nodes
Action <int, Step <int> > neighbors =
(int current, Step <int> step_function) =>
{
//for (int i = 0; i < 4; i++)
// if (adjacencyMatrix[current, i] != null)
// step(i);
graph.Neighbors(current, step_function);
};
// make a delegate for computing heuristics
Func <int, int> heuristic =
(int node) =>
{
switch (node)
{
case 0:
return(3);
case 1:
return(6);
case 2:
return(1);
case 3:
return(0);
default:
throw new NotImplementedException();
}
};
// make a delegate for computing costs
Func <int, int, int> cost =
(int from, int to) =>
{
if (from == 0 && to == 1)
{
return(1);
}
if (from == 0 && to == 2)
{
return(2);
}
if (from == 1 && to == 3)
{
return(5);
}
if (from == 2 && to == 3)
{
return(1);
}
throw new Exception("invalid path cost computation");
};
// make a delegate for determining if the goal is reached
Func <int, bool> goal =
(int node) =>
{
if (node == 3)
{
return(true);
}
else
{
return(false);
}
};
// run A* the algorithm
Stepper <int> aStar_path = Search <int> .Graph <int> .Astar(
0,
graph,
new Search <int> .Graph <int> .Heuristic(heuristic),
new Search <int> .Graph <int> .Cost(cost),
new Search <int> .Graph <int> .Goal(goal));
// run the Greedy algorithm
Stepper <int> greedy_path = Search <int> .Graph <int> .Greedy(
0,
graph,
new Search <int> .Graph <int> .Heuristic(heuristic),
new Search <int> .Graph <int> .Goal(goal));
Console.Write("A* Path: ");
if (aStar_path != null)
{
aStar_path((int i) => { System.Console.Write(i + " "); });
}
else
{
Console.Write("none");
}
Console.WriteLine();
Console.Write("Greedy Path: ");
if (greedy_path != null)
{
greedy_path((int i) => { System.Console.Write(i + " "); });
}
else
{
Console.Write("none");
}
Console.WriteLine();
#endregion
Console.WriteLine();
Console.WriteLine("============================================");
Console.WriteLine("Example Complete...");
Console.ReadLine();
}
static void Main(string[] args)
{
Random random = new Random();
int test = 10;
Console.WriteLine("You are runnning the Data Structures example.");
Console.WriteLine("======================================================");
Console.WriteLine();
#region Link
Console.WriteLine(" Testing Link-------------------------------");
Console.WriteLine(" Size: 6");
Link link = new Link <int, int, int, int, int, int>(0, 1, 2, 3, 4, 5);
Console.Write(" Traversal: ");
link.Stepper((dynamic current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string linklink_file = "link." + ToExtension(link.GetType());
//Console.WriteLine(" File: \"" + linklink_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(linklink_file, link));
//Link<int, int, int, int, int, int> deserialized_linklink;
//Console.WriteLine(" Deserialized: " + Deserialize(linklink_file, out deserialized_linklink));
Console.WriteLine();
#endregion
#region Array
Console.WriteLine(" Testing Array_Array<int>-------------------");
Indexed <int> array = new IndexedArray <int>(test);
for (int i = 0; i < test; i++)
{
array[i] = i;
}
Console.Write(" Traversal: ");
array.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string arrayarray_file = "array." + ToExtension(array.GetType());
//Console.WriteLine(" File: \"" + arrayarray_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(arrayarray_file, array));
//ArrayArray<int> deserialized_arrayarray;
//Console.WriteLine(" Deserialized: " + Deserialize(arrayarray_file, out deserialized_arrayarray));
Console.WriteLine();
#endregion
#region List
Console.WriteLine(" Testing List_Array<int>--------------------");
Addable <int> list_array = new AddableArray <int>(test);
for (int i = 0; i < test; i++)
{
list_array.Add(i);
}
Console.Write(" Traversal: ");
list_array.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
//string list_array_serialization = (list_array as ListArray<int>).Serialize(x => x.ToString());
//using (StreamWriter writer = new StreamWriter("ListArray.ListArray"))
//{
// writer.WriteLine(list_array_serialization);
//}
//using (StreamReader reader = new StreamReader("ListArray.ListArray"))
//{
// list_array = ListArray<int>.Deserialize(reader.ReadToEnd(), x => Int16.Parse(x.Trim()));
//}
//Console.Write(" Serialization/Deserialization is possible.");
list_array.Add(11);
list_array.Remove(7);
Console.WriteLine();
Console.WriteLine();
//ListArray<ListArray<int>> list_array2 = new ListArray<ListArray<int>>(test);
//for (int i = 0; i < test; i++)
//{
// ListArray<int> nested_list = new ListArray<int>();
// for (int j = 0; j < test; j++)
// {
// nested_list.Add(j);
// }
// list_array2.Add(nested_list);
//}
//string list_array2_serialization = list_array2.Serialize(x => x.Serialize(y => y.ToString()));
//using (StreamWriter writer = new StreamWriter("ListArray2.ListArray"))
//{
// writer.WriteLine(list_array2_serialization);
//}
//using (StreamReader reader = new StreamReader("ListArray2.ListArray"))
//{
// list_array2 = ListArray<ListArray<int>>.Deserialize(reader.ReadToEnd(), x => ListArray<int>.Deserialize(x, y => Int16.Parse(y.Trim())));
//}
Console.WriteLine(" Testing List_Linked<int>-------------------");
Addable <int> list_linked = new AddableLinked <int>();
for (int i = 0; i < test; i++)
{
list_linked.Add(i);
}
Console.Write(" Traversal: ");
list_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string listlinked_file = "list_linked." + ToExtension(list_linked.GetType());
//Console.WriteLine(" File: \"" + listlinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(listlinked_file, list_linked));
//ListLinked<int> deserialized_listlinked;
//Console.WriteLine(" Deserialized: " + Deserialize(listlinked_file, out deserialized_listlinked));
Console.WriteLine();
#endregion
#region Stack
Console.WriteLine(" Testing Stack_Linked<int>------------------");
FirstInLastOut <int> stack_linked = new FirstInLastOutLinked <int>();
for (int i = 0; i < test; i++)
{
stack_linked.Push(i);
}
Console.Write(" Traversal: ");
stack_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string stacklinked_file = "stack_linked." + ToExtension(stack_linked.GetType());
//Console.WriteLine(" File: \"" + stacklinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(stacklinked_file, stack_linked));
//StackLinked<int> deserialized_stacklinked;
//Console.WriteLine(" Deserialized: " + Deserialize(stacklinked_file, out deserialized_stacklinked));
Console.WriteLine();
#endregion
#region Queue
Console.WriteLine(" Testing Queue_Linked<int>------------------");
FirstInFirstOut <int> queue_linked = new FirstInFirstOutLinked <int>();
for (int i = 0; i < test; i++)
{
queue_linked.Enqueue(i);
}
Console.Write(" Traversal: ");
queue_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string queuelinked_file = "queue_linked." + ToExtension(queue_linked.GetType());
//Console.WriteLine(" File: \"" + queuelinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(queuelinked_file, queue_linked));
//QueueLinked<int> deserialized_queuelinked;
//Console.WriteLine(" Deserialized: " + Deserialize(queuelinked_file, out deserialized_queuelinked));
Console.WriteLine();
#endregion
#region Heap
Console.WriteLine(" Testing Heap_Array<int>--------------------");
Heap <int> heap_array = new HeapArray <int>(Compute.Compare);
for (int i = 0; i < test; i++)
{
heap_array.Enqueue(i);
}
Console.Write(" Delegate: ");
heap_array.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string heaplinked_file = "heap_array." + ToExtension(heap_array.GetType());
//Console.WriteLine(" File: \"" + heaplinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(heaplinked_file, heap_array));
//HeapArray<int> deserialized_heaplinked;
//Console.WriteLine(" Deserialized: " + Deserialize(heaplinked_file, out deserialized_heaplinked));
Console.WriteLine();
#endregion
#region Tree
Console.WriteLine(" Testing Tree_Map<int>----------------------");
Tree <int> tree_Map = new TreeMap <int>(0, Compute.Equal, Hash.Default);
for (int i = 1; i < test; i++)
{
tree_Map.Add(i, i / (int)System.Math.Sqrt(test));
}
Console.Write(" Children of 0 (root): ");
tree_Map.Children(0, (int i) => { Console.Write(i + " "); });
Console.WriteLine();
Console.Write(" Children of " + ((int)System.Math.Sqrt(test) - 1) + " (root): ");
tree_Map.Children(((int)System.Math.Sqrt(test) - 1), (int i) => { Console.Write(i + " "); });
Console.WriteLine();
Console.Write(" Traversal: ");
tree_Map.Stepper((int i) => { Console.Write(i + " "); });
Console.WriteLine();
// Saving to a file
//string treelinked_file = "tree_Map." + ToExtension(tree_Map.GetType());
//Console.WriteLine(" File: \"" + treelinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(treelinked_file, tree_Map));
//TreeMap<int> deserialized_treelinked;
//Console.WriteLine(" Deserialized: " + Deserialize(treelinked_file, out deserialized_treelinked));
Console.WriteLine();
#endregion
#region AVL Tree
//Console.WriteLine(" Testing AvlTree_Linked<int>----------------");
//// Construction
//AvlTree<int> avlTree_linked = new AvlTree_Linked<int>(Logic.compare);
//// Adding Items
//Console.Write(" Adding (0-" + test + ")...");
//for (int i = 0; i < test; i++)
// avlTree_linked.Add(i);
//Console.WriteLine();
//// Iteration
//Console.Write(" Traversal: ");
//avlTree_linked.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//// Removal
//int avl_tree_linked_removal = random.Next(0, test);
//avlTree_linked.Remove(avl_tree_linked_removal);
//Console.Write(" Remove(" + avl_tree_linked_removal + "): ");
//avlTree_linked.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//// Look Up Items
//int avl_tree_linked_lookup = random.Next(0, test);
//while (avl_tree_linked_lookup == avl_tree_linked_removal)
// avl_tree_linked_lookup = random.Next(0, test);
//Console.WriteLine(" Look Up (" + avl_tree_linked_lookup + "): " + avlTree_linked.TryGet(avl_tree_linked_lookup, Logic.compare, out temp));
//Console.WriteLine(" Look Up (" + avl_tree_linked_removal + "): " + avlTree_linked.TryGet(avl_tree_linked_removal, Logic.compare, out temp));
//avlTree_linked.Get(avl_tree_linked_lookup, Logic.compare);
//// Current Min-Max Values
//Console.WriteLine(" Least: " + avlTree_linked.CurrentLeast + " Greatest: " + avlTree_linked.CurrentGreatest);
//// Saving to a file
//string avltreelinked_file = "avlTree_linked." + ToExtension(avlTree_linked.GetType());
//Console.WriteLine(" File: \"" + avltreelinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(avltreelinked_file, avlTree_linked));
//AvlTree_Linked<int> deserialized_avltreelinked;
//Console.WriteLine(" Deserialized: " + Deserialize(avltreelinked_file, out deserialized_avltreelinked));
//Console.WriteLine();
#endregion
#region Red-Black Tree
Console.WriteLine(" Testing RedBlack_Linked<int>---------------");
RedBlackTree <int> redBlackTree_linked = new RedBlackTreeLinked <int>(Compute.Compare);
for (int i = 0; i < test; i++)
{
redBlackTree_linked.Add(i);
}
Console.Write(" Traversal: ");
redBlackTree_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Saving to a file
//string redblacktreelinked_file = "redBlackTree_linked." + ToExtension(redBlackTree_linked.GetType());
//Console.WriteLine(" File: \"" + redblacktreelinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(redblacktreelinked_file, redBlackTree_linked));
//RedBlackTreeLinked<int> deserialized_redblacktreelinked;
//Console.WriteLine(" Deserialized: " + Deserialize(redblacktreelinked_file, out deserialized_redblacktreelinked));
Console.WriteLine();
#endregion
#region BTree
//Console.WriteLine(" Testing BTree_LinkedArray<int>-------------");
//BTree<int> btree_linked = new BTree_LinkedArray<int>(Logic.compare, 3);
//for (int i = 0; i < test; i++)
// btree_linked.Add(i);
//Console.Write(" Delegate: ");
//btree_linked.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//Console.Write(" IEnumerator: ");
//foreach (int current in btree_linked)
// Console.Write(current);
//Console.WriteLine();
//Console.WriteLine(" Press Enter to continue...");
//string maplinked_file = "maplinked.quad";
//Console.WriteLine(" File: \"" + maplinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(maplinked_file, hashTable_linked));
//Omnitree_LinkedLinkedLists<int, double> deserialized_maplinked;
//Console.WriteLine(" Deserialized: " + Deserialize(maplinked_file, out deserialized_maplinked));
//Console.ReadLine();
//Console.WriteLine();
#endregion
#region Set
Console.WriteLine(" Testing Set_Hash<int>----------------------");
Set <int> set_linked = new SetHashList <int>(Compute.Equal, Hash.Default);
for (int i = 0; i < test; i++)
{
set_linked.Add(i);
}
// Traversal
Console.Write(" Traversal: ");
set_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.Write(" Table Size: " + (set_linked as SetHashList <int>).TableSize);
Console.WriteLine();
Console.WriteLine();
#endregion
#region Map
Console.WriteLine(" Testing MapHashList<int, int>--------------");
Map <int, int> map_sethash = new MapHashLinked <int, int>(Compute.Equal, Hash.Default);
for (int i = 0; i < test; i++)
{
map_sethash.Add(i, i);
}
Console.Write(" Look Ups: ");
for (int i = 0; i < test; i++)
{
Console.Write(map_sethash[i]);
}
Console.WriteLine();
// Traversal
Console.Write(" Traversal: ");
map_sethash.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.Write(" Table Size: " + (map_sethash as MapHashLinked <int, int>).TableSize);
Console.WriteLine();
Console.WriteLine();
#endregion
#region OmnitreePoints
{
Console.WriteLine(" Testing OmnitreeLinkedLinked<int, double>-------");
// Construction
OmnitreePoints <int, double, double, double> omnitree_linked = new OmnitreePointsLinked <int, double, double, double>(
(int index, out double a, out double b, out double c) => { a = index; b = index; c = index; }); // axis average function
// Properties
Console.WriteLine(" Dimensions: " + omnitree_linked.Dimensions);
Console.WriteLine(" Count: " + omnitree_linked.Count);
// Addition
Console.Write(" Adding 0-" + test + ": ");
for (int i = 0; i < test; i++)
{
omnitree_linked.Add(i);
}
omnitree_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Count: " + omnitree_linked.Count);
// Traversal
Console.Write(" Traversal [ALL]: ");
omnitree_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Look Up 1
Console.Write(" Traversal [(" + (test / 2) + ", " + (test / 2) + ", " + (test / 2) + ")->(" + test + ", " + test + ", " + test + ")]: ");
omnitree_linked.Stepper((int current) => { Console.Write(current); },
test / 2, test,
test / 2, test,
test / 2, test);
Console.WriteLine();
// Look Up 2
Console.Write(" Look Up [" + (test / 3) + ", " + (test / 3) + ", " + (test / 3) + "]: ");
omnitree_linked[(test / 3), (test / 3), (test / 3)]((int current) => { Console.Write(current); });
Console.WriteLine();
// Removal
Console.Write(" Remove 0-" + test / 3 + ": ");
omnitree_linked.Remove(
0, test / 3,
0, test / 3,
0, test / 3);
omnitree_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Count: " + omnitree_linked.Count);
// Clear
Console.Write(" Clear: ");
omnitree_linked.Clear();
omnitree_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Count: " + omnitree_linked.Count);
// Saving to a file
//string omnitreelinked_file = "omnitree_linkedlinkedlists." + ToExtension(omnitree_linked.GetType());
//Console.WriteLine(" File: \"" + omnitreelinked_file + "\"");
//Console.WriteLine(" Serialized: " + Serialize(omnitreelinked_file, omnitree_linked));
//OmnitreeLinkedLinkedLists<int, double> deserialized_omnitreeLinked;
//Console.WriteLine(" Deserialized: " + Deserialize(omnitreelinked_file, out deserialized_omnitreeLinked));
Console.WriteLine();
//Console.WriteLine(" Testing Omnitree_LinkedArrayLists<int, double>--------");
//// Construction
//Omnitree<int, double> omnitree_array = new OmnitreeLinkedArray<int, double>(
// new double[] { -test - 1, -test - 1, -test - 1 }, // minimum dimensions of the omnitree
// new double[] { test + 1, test + 1, test + 1 }, // maximum dimensions of the omnitree
// (int index) => { return Accessor.Get(new double[] { index, index, index }); }, // "N-D" location function
// Compute<double>.Compare, // comparison function
// (double a, double b) => { return (a + b) / 2; }); // average function
//// Properties
//Console.WriteLine(" Origin: [" + omnitree_array.Origin(0) + ", " + omnitree_array.Origin(1) + ", " + omnitree_array.Origin(2) + "]");
//Console.WriteLine(" Minimum: [" + omnitree_array.Min(0) + ", " + omnitree_array.Min(1) + ", " + omnitree_array.Min(2) + "]");
//Console.WriteLine(" Maximum: [" + omnitree_array.Max(0) + ", " + omnitree_array.Max(1) + ", " + omnitree_array.Max(2) + "]");
//Console.WriteLine(" Dimensions: " + omnitree_array.Dimensions);
//Console.WriteLine(" Count: " + omnitree_array.Count);
//// Addition
//Console.Write(" Adding 0-" + test + ": ");
//for (int i = 0; i < test; i++)
// omnitree_array.Add(i);
//omnitree_array.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//Console.WriteLine(" Count: " + omnitree_array.Count);
//// Traversal
//Console.Write(" Traversal [ALL]: ");
// omnitree_array.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//// Look Up
//Console.Write(" Traversal [" + (test / 2) + "-" + test + "]: ");
// omnitree_array.Stepper((int current) => { Console.Write(current); },
// new double[] { test / 2, test / 2, test / 2 },
// new double[] { test, test, test });
//Console.WriteLine();
//// Removal
//Console.Write(" Remove 0-" + test / 3 + ": ");
//omnitree_array.Remove(
// new double[] { 0, 0, 0 },
// new double[] { test / 3, test / 3, test / 3 });
//omnitree_array.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//Console.WriteLine(" Count: " + omnitree_array.Count);
//// Clear
//Console.Write(" Clear: ");
//omnitree_array.Clear();
// omnitree_array.Stepper((int current) => { Console.Write(current); });
//Console.WriteLine();
//Console.WriteLine(" Count: " + omnitree_array.Count);
//// Saving to a file
////string omnitreearray_file = "omnitree_linkedarraylists." + ToExtension(omnitree_array.GetType());
////Console.WriteLine(" File: \"" + omnitreearray_file + "\"");
////Console.WriteLine(" Serialized: " + Serialize(omnitreearray_file, omnitree_array));
////OmnitreeLinkedLinkedLists<int, double> deserialized_omnitreearray;
////Console.WriteLine(" Deserialized: " + Deserialize(omnitreearray_file, out deserialized_omnitreearray));
//Console.WriteLine();
}
#endregion
#region OmnitreeBounds
{
Console.WriteLine(" Testing OmnitreeBoundsLinked<int, double>-------");
// Construction
OmnitreeBounds <int, double, double, double> omnitreeBounds_linked = new OmnitreeBoundsLinked <int, double, double, double>(
(int index,
out double min1, out double max1,
out double min2, out double max2,
out double min3, out double max3) =>
{
min1 = index; max1 = index;
min2 = index; max2 = index;
min3 = index; max3 = index;
});
// Properties
Console.WriteLine(" Dimensions: " + omnitreeBounds_linked.Dimensions);
Console.WriteLine(" Count: " + omnitreeBounds_linked.Count);
// Addition
Console.Write(" Adding 0-" + test + ": ");
for (int i = 0; i < test; i++)
{
omnitreeBounds_linked.Add(i);
}
omnitreeBounds_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Count: " + omnitreeBounds_linked.Count);
// Traversal
Console.Write(" Traversal [ALL]: ");
omnitreeBounds_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
// Look Up 1
//Console.Write(" Traversal [(" + (test / 2) + ", " + (test / 2) + ", " + (test / 2) + ")->(" + test + ", " + test + ", " + test + ")]: ");
//omnitreeBounds_linked.Stepper((int current) => { Console.Write(current); },
// test / 2, test,
// test / 2, test,
// test / 2, test);
//Console.WriteLine();
// Removal
Console.Write(" Remove 0-" + test / 3 + ": ");
omnitreeBounds_linked.RemoveOverlapped(
0, test / 3,
0, test / 3,
0, test / 3);
omnitreeBounds_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Count: " + omnitreeBounds_linked.Count);
// Clear
Console.Write(" Clear: ");
omnitreeBounds_linked.Clear();
omnitreeBounds_linked.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Count: " + omnitreeBounds_linked.Count);
Console.WriteLine();
}
#endregion
#region KD Tree
////List<KdTreeNode<float, string>> testNodes = new List_Linked<KdTreeNode<float, string>>();
//KdTree_Linked<string, float> tree = new KdTree_Linked<string, float>(
// 2,
// Logic.compare,
// float.MinValue,
// float.MaxValue,
// 0,
// Arithmetic.Add,
// Arithmetic.Subtract,
// Arithmetic.Multiply);
//List<KdTree_Linked<string, float>.Node> testNodes =
// new List_Linked<KdTree_Linked<string, float>.Node>
//{
// new KdTree_Linked<string, float>.Node(new float[] { 5, 5 }, "Root"),
// new KdTree_Linked<string, float>.Node(new float[] { 2.5f, 2.5f }, "Root-Left"),
// new KdTree_Linked<string, float>.Node(new float[] { 7.5f, 7.5f }, "Root-Right"),
// new KdTree_Linked<string, float>.Node(new float[] { 1, 10 }, "Root-Left-Left"),
// new KdTree_Linked<string, float>.Node(new float[] { 10, 10 }, "Root-Right-Right")
//};
//foreach (var node in testNodes)
// if (!tree.Add(node.Point, node.Value))
// throw new Exception("Failed to add node to tree");
//var nodesToRemove = new KdTreeNode<float, string>[] {
// testNodes[1], // Root-Left
// testNodes[0] // Root
//};
//foreach (var nodeToRemove in nodesToRemove)
//{
// tree.RemoveAt(nodeToRemove.Point);
// testNodes.Remove(nodeToRemove);
// Assert.IsNull(tree.FindValue(nodeToRemove.Value));
// Assert.IsNull(tree.FindValueAt(nodeToRemove.Point));
// foreach (var testNode in testNodes)
// {
// Assert.AreEqual(testNode.Value, tree.FindValueAt(testNode.Point));
// Assert.AreEqual(testNode.Point, tree.FindValue(testNode.Value));
// }
// Assert.AreEqual(testNodes.Count, tree.Count);
//}
#endregion
#region Graph
Console.WriteLine(" Testing Graph_SetOmnitree<int>-------------");
Graph <int> graph = new GraphSetOmnitree <int>(Compute.Equal, Compute.Compare, Hash.Default);
// add nodes
for (int i = 0; i < test; i++)
{
graph.Add(i);
}
// add edges
for (int i = 0; i < test - 1; i++)
{
graph.Add(i, i + 1);
}
Console.Write(" Traversal: ");
graph.Stepper((int current) => { Console.Write(current); });
Console.WriteLine();
Console.WriteLine(" Edges: ");
//((Graph_SetQuadtree<int>)graph)._edges.Foreach((Graph_SetQuadtree<int>.Edge e) => { Console.WriteLine(" " + e.Start + " " + e.End); });
graph.Stepper(
(int current) =>
{
Console.Write(" " + current + ": ");
graph.Neighbors(current,
(int a) =>
{
Console.Write(a);
});
Console.WriteLine();
});
Console.WriteLine();
#endregion
Console.WriteLine("============================================");
Console.WriteLine("Examples Complete...");
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("You are runnning the Algorithms tutorial.");
Console.WriteLine("======================================================");
Console.WriteLine();
#region Sorting
{
Console.WriteLine(" Sorting Algorithms----------------------");
Console.WriteLine();
int[] dataSet = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
Console.Write(" Data Set:");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
// if you want to sort non-array types, see the overloads using Get<int> and Assign<int>
// Delegates
//Get<int> get = (int index) => { return dataSet[index]; };
//Assign<int> assign = (int index, int value) => { dataSet[index] = value; };
// Shuffling (Randomizing)
Sort <int> .Shuffle(dataSet);
Console.Write(" Shuffle (Randomizing): ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
// Bubble
Sort <int> .Bubble(dataSet);
Console.Write(" Bubble: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine(" shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Selection
Sort <int> .Selection(dataSet);
Console.Write(" Selection: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine(" shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Insertion
Sort <int> .Insertion(dataSet);
Console.Write(" Insertion: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine(" shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Quick
Sort <int> .Quick(dataSet);
Console.Write(" Quick: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine(" shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Merge
Sort <int> .Merge(Compute.Compare, dataSet);
Console.Write(" Merge: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine(" shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// Heap
Sort <int> .Heap(Compute.Compare, dataSet);
Console.Write(" Heap: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
Console.WriteLine(" shuffling dataSet...");
Sort <int> .Shuffle(dataSet);
// OddEven
Sort <int> .OddEven(Compute.Compare, dataSet);
Console.Write(" OddEven: ");
Console.Write(dataSet[0]);
for (int i = 1; i < dataSet.Length; i++)
{
Console.Write(", " + dataSet[i]);
}
Console.WriteLine();
//Sort<int>.Shuffle(get, set, 0, dataSet.Length);
//// Slow
//Sort<int>.Slow(Logic.compare, get, set, 0, dataSet.Length);
//Console.Write("Slow: ");
//Console.Write(dataSet[0]);
//for (int i = 1; i < dataSet.Length; i++)
// Console.Write(", " + dataSet[i]);
//Console.WriteLine();
Sort <int> .Shuffle(dataSet);
// Bogo
//Sort<int>.Bogo(Logic.compare, get, set, 0, dataSet.Length);
Console.Write(" Bogo: Disabled (takes forever)");
//Console.Write(dataSet[0]);
//for (int i = 1; i < dataSet.Length; i++)
// Console.Write(", " + dataSet[i]);
//Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
}
#endregion
#region Graph Search
{
Console.WriteLine(" Graph Searching----------------------");
Console.WriteLine();
// make a graph
Graph <int> graph = new GraphSetOmnitree <int>(
Compare.Default,
Hash.Default);
// add nodes
graph.Add(0);
graph.Add(1);
graph.Add(2);
graph.Add(3);
// add edges
graph.Add(0, 1);
graph.Add(0, 2);
graph.Add(1, 3);
graph.Add(2, 3);
//// represent a graph
//// Note: can be any type (doesn't have to be int?[,])
//int?[,] adjacencyMatrix =
//{
// { null, 1, 2, null },
// { null, null, null, 5 },
// { null, null, null, 1 },
// { null, null, null, null }
//};
// make a delegate for finding neighbor nodes
Action <int, Step <int> > neighbors =
(int current, Step <int> step_function) =>
{
//for (int i = 0; i < 4; i++)
// if (adjacencyMatrix[current, i] != null)
// step(i);
graph.Neighbors(current, step_function);
};
// make a delegate for computing heuristics
Func <int, int> heuristic =
(int node) =>
{
switch (node)
{
case 0:
return(3);
case 1:
return(6);
case 2:
return(1);
case 3:
return(0);
default:
throw new NotImplementedException();
}
};
// make a delegate for computing costs
Func <int, int, int> cost =
(int from, int to) =>
{
if (from == 0 && to == 1)
{
return(1);
}
if (from == 0 && to == 2)
{
return(2);
}
if (from == 1 && to == 3)
{
return(5);
}
if (from == 2 && to == 3)
{
return(1);
}
if (from == 0 && to == 3)
{
return(99);
}
throw new Exception("invalid path cost computation");
};
// make a delegate for determining if the goal is reached
Func <int, bool> goal =
(int node) =>
{
if (node == 3)
{
return(true);
}
else
{
return(false);
}
};
// run A* the algorithm
Stepper <int> aStar_path = Search <int> .Graph <int> .Astar(
0,
graph,
new Search <int> .Graph <int> .Heuristic(heuristic),
new Search <int> .Graph <int> .Cost(cost),
new Search <int> .Graph <int> .Goal(goal));
// run the Greedy algorithm
Stepper <int> greedy_path = Search <int> .Graph <int> .Greedy(
0,
graph,
new Search <int> .Graph <int> .Heuristic(heuristic),
new Search <int> .Graph <int> .Goal(goal));
Console.Write(" A* Path: ");
if (aStar_path != null)
{
aStar_path((int i) => { System.Console.Write(i + " "); });
}
else
{
Console.Write(" none");
}
Console.WriteLine();
Console.Write(" Greedy Path: ");
if (greedy_path != null)
{
greedy_path((int i) => { System.Console.Write(i + " "); });
}
else
{
Console.Write(" none");
}
Console.WriteLine();
Console.WriteLine();
}
#endregion
#region Graph Search (Vector Game-Style Example)
// Lets say you are coding enemy AI and you want the AI to find a path towards the player
// in order to attack them. Here are their starting positions:
Vector <float> enemy_location = new Vector <float>(-100, 0, -50);
Vector <float> player_location = new Vector <float>(200, 0, -50);
float enemy_attack_range = 3; // enemy has a melee attack with 3 range
// Lets say most of the terrain is open, but there is a big rock in between them that they
// must go around.
Vector <float> rock_location = new Vector <float>(15, 0, -40);
float rock_radius = 20;
// So, we just need to validate movement locations (make sure the path finding algorithm
// ignores locations inside the rock)
Func <Vector <float>, bool> validateMovementLocation = location =>
{
float mag = (location - rock_location).Magnitude;
if (mag <= rock_radius)
{
return(false); // inside rock (not valid)
}
return(true); // not inside rock (valid)
// NOTE:
// This function will normally be handled by your physics engine if you are running one.
};
// Make sure we don't re-use locations (must be wiped after running the algorithm)
Set <Vector <float> > already_used = new SetHashList <Vector <float> >();
// Now we need the neighbor function (getting the neighbors of the current location).
Search <Vector <float> > .Graph <float> .Neighbors neighborFunction = (currentLocation, neighbors) =>
{
// lets make a simple neighbor function that returns 4 locations (directly north, south, east, and west)
// and the distance of each node in the graph will be 1
Vector <float>
north = new Vector <float>(currentLocation.X + 1, currentLocation.Y, currentLocation.Z),
east = new Vector <float>(currentLocation.X, currentLocation.Y, currentLocation.Z + 1),
south = new Vector <float>(currentLocation.X - 1, currentLocation.Y, currentLocation.Z),
west = new Vector <float>(currentLocation.X, currentLocation.Y, currentLocation.Z - 1);
// validate the locations (not inside the rock) and make sure we have not already traversed the location
if (validateMovementLocation(north) && !already_used.Contains(north))
{
already_used.Add(north); // mark for usage so we do not use this location again
neighbors(north);
}
if (validateMovementLocation(east) && !already_used.Contains(east))
{
already_used.Add(east); // mark for usage so we do not use this location again
neighbors(east);
}
if (validateMovementLocation(south) && !already_used.Contains(south))
{
already_used.Add(south); // mark for usage so we do not use this location again
neighbors(south);
}
if (validateMovementLocation(west) && !already_used.Contains(west))
{
already_used.Add(west); // mark for usage so we do not use this location again
neighbors(west);
}
// NOTES:
// - This neighbor function has a 90 degree per-node resolution (360 / 4 [north/south/east/west] = 90).
// - This neighbor function has a 1 unit per-node resolution, because we went 1 unit in each direction.
// RECOMMENDATIONS:
// - If the path finding is failing, you may need to increase the resolution.
// - If the algorithm is running too slow, you may need to reduce the resolution.
};
// Now we need the heuristic function (how close are we to the goal).
Search <Vector <float> > .Graph <float> .Heuristic heuristicFunction = currentLocation =>
{
// The goal is the player's location, so we just need our distance from the player.
return((currentLocation - player_location).Magnitude);
};
// Lets say there is a lot of mud around the rock, and the mud makes our player move at half their normal speed.
// Our path finding needs to find the fastest route to the player, whether it be through the mud or not.
Vector <float> mud_location = new Vector <float>(15, 0, -70);
float mud_radius = 30;
// Now we need the cost function
Search <Vector <float> > .Graph <float> .Cost costFunction = (location1, location2) =>
{
// If either locations are in the mud, lets increase the cost of moving to that spot.
float mag1 = (location1 - mud_location).Magnitude;
if (mag1 <= mud_radius)
{
return(2);
}
float mag2 = (location2 - mud_location).Magnitude;
if (mag2 <= mud_radius)
{
return(2);
}
// neither location is in the mud, it is just a standard movement at normal speed.
return(1);
};
// Now we need a goal function
Search <Vector <float> > .Graph <float> .Goal goalFunction = currentLocation =>
{
float mag = (currentLocation - player_location).Magnitude;
// if the player is within the enemy's attack range WE FOUND A PATH! :)
if (mag <= enemy_attack_range)
{
return(true);
}
// the enemy is not yet within attack range
return(false);
};
// We have all the necessary parameters. Run the pathfinding algorithms!
Stepper <Vector <float> > aStarPath = Search <Vector <float> > .Graph <float> .Astar(
enemy_location,
neighborFunction,
heuristicFunction,
costFunction,
goalFunction);
// NOTE:
// if the "Astar" function returns "null" there is no valid path. (in this example there
// are valid paths, so I didn't add a nul check)
// Here is the path converted to an array (easier to read while debugging)
Vector <float>[] aStarPath_array = aStarPath.ToArray();
// flush the duplicate locations checker before running the Greedy algorithm
already_used.Clear();
Stepper <Vector <float> > greedyPath = Search <Vector <float> > .Graph <float> .Greedy(
enemy_location,
neighborFunction,
heuristicFunction,
goalFunction);
// Here is the path converted to an array (easier to read while debugging)
Vector <float>[] greedyPath_array = greedyPath.ToArray();
// lets calculate the movement cost of each path
float total_cost_astar = Compute.Add <float>(step =>
{
for (int i = 0; i < aStarPath_array.Length - 1; i++)
{
float cost = costFunction(aStarPath_array[i], aStarPath_array[i + 1]);
step(cost);
}
});
float total_cost_greedy = Compute.Add <float>(step =>
{
for (int i = 0; i < greedyPath_array.Length - 1; i++)
{
float cost = costFunction(greedyPath_array[i], greedyPath_array[i + 1]);
step(cost);
}
});
// Notice that that the A* algorithm produces a less costly path than the Greedy,
// meaning that it is faster. The Greedy path went through the mud, but the A* path
// took the longer route around the other side of the rock, which ended up being faster
// than running through the mud.
#endregion
#region Random Generation
Console.WriteLine(" Random Generation---------------------");
Console.WriteLine();
int iterationsperrandom = 3;
Action <Random> testrandom = (Random random) =>
{
for (int i = 0; i < iterationsperrandom; i++)
{
Console.WriteLine(" " + i + ": " + random.Next());
}
Console.WriteLine();
};
Arbitrary mcg_2pow59_13pow13 = new Arbitrary.Algorithms.MultiplicativeCongruent_A();
Console.WriteLine(" mcg_2pow59_13pow13 randoms:");
testrandom(mcg_2pow59_13pow13);
Arbitrary mcg_2pow31m1_1132489760 = new Arbitrary.Algorithms.MultiplicativeCongruent_B();
Console.WriteLine(" mcg_2pow31m1_1132489760 randoms:");
testrandom(mcg_2pow31m1_1132489760);
Arbitrary mersenneTwister = new Arbitrary.Algorithms.MersenneTwister();
Console.WriteLine(" mersenneTwister randoms:");
testrandom(mersenneTwister);
Arbitrary cmr32_c2_o3 = new Arbitrary.Algorithms.CombinedMultipleRecursive();
Console.WriteLine(" mersenneTwister randoms:");
testrandom(cmr32_c2_o3);
Arbitrary wh1982cmcg = new Arbitrary.Algorithms.WichmannHills1982();
Console.WriteLine(" mersenneTwister randoms:");
testrandom(wh1982cmcg);
Arbitrary wh2006cmcg = new Arbitrary.Algorithms.WichmannHills2006();
Console.WriteLine(" mersenneTwister randoms:");
testrandom(wh2006cmcg);
Arbitrary mwcxorsg = new Arbitrary.Algorithms.MultiplyWithCarryXorshift();
Console.WriteLine(" mwcxorsg randoms:");
testrandom(mwcxorsg);
#endregion
Console.WriteLine();
Console.WriteLine("============================================");
Console.WriteLine("Example Complete...");
Console.ReadLine();
}