public void TestScriptB()
{
var config = new YggParserConfig();
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(TestRunningAction).Assembly.GetName().Name);
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
var context = parser.BuildFromFiles <TestState>("ParserTests\\testScriptB.ygg");
Assert.AreEqual(0, context.Errors.Count);
Assert.AreEqual(3, context.TopmostNodeCount);
var root = context.Instantiate("root");
Assert.IsNotNull(root);
var manager = new BehaviourTree(root);
AssertScriptB(manager);
manager.Reset();
AssertScriptB(manager);
}
public void DynamicTestScript()
{
var config = new YggParserConfig();
config.ReplaceObjectStateWithDynamic = true;
config.ScriptNamespaces.Add(typeof(Result).Namespace);
config.ReferenceAssemblyPaths.Add(typeof(Node).Assembly.Location);
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(TestDynamicFunction).Assembly.GetName().Name);
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
var context = parser.BuildFromFiles <object>("ParserTests\\testScriptC.ygg");
Assert.AreEqual(0, context.Errors.Count);
Assert.AreEqual(1, context.TopmostNodeCount);
var root = context.Instantiate("root");
Assert.IsNotNull(root);
dynamic state = new ExpandoObject();
var manager = new BehaviourTree(root);
manager.Update(state);
Assert.AreEqual(1UL, manager.TickCount);
Assert.AreEqual(Result.Success, manager.Result);
Assert.AreEqual(1, state.A);
}
public void Setup()
{
var config = new YggParserConfig();
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(TestRunningAction).Assembly.GetName().Name);
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
var scriptPath = Path.Combine(Environment.CurrentDirectory, "BenchmarkScripts\\testScriptB.ygg");
var context = parser.BuildFromFiles <TestState>(scriptPath);
if (context.Errors.Count > 0)
{
throw new Exception(context.Errors[0].Message);
}
_tree = new BehaviourTree(context.Instantiate("root"));
_state = new TestState();
// Warmup.
while (_tree.TickCount == 0)
{
_tree.Update(_state);
}
_state = new TestState();
}
public void Start()
{
// You need to pass the "netstandard" assembly reference when in Unity.
// This is not necessary on a standalone .NET Core 2.2 console program.
// You can also pass more references and namespace usings for the C# snippets if needed.
var netstandard = AppDomain.CurrentDomain.GetAssemblies().First(n => n.GetName().Name == "netstandard").Location;
var config = new YggParserConfig();
config.ReferenceAssemblyPaths.Add(netstandard);
// You choose which currently loaded assemblies are searched for types deriving from the Node class.
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(ExampleCustomAction).Assembly.GetName().Name);
// Create the compiler and parser. They can be reused for multiple parsings.
// The only state maintained by a parser instance is the initial config passed on its constructor.
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
// The parser gives back a behaviour tree definition, which can be used to instantiate the tree multiple times (or any node within by its GUID).
// The definition also keeps track of errors that might have happened during parsing, and other debug information.
// Node GUIDs can be assigned manually on the script files themselves. If they don't have one, the parser assigns a random one. They must be unique
// withing the context of all the files parsed. The same goes for 'TypeDefs'. You can reference TypeDefs between files.
var scriptFilePath = Path.Combine(Application.streamingAssetsPath, "exampleScript.ygg");
var definition = parser.BuildFromFiles <ExampleState>(scriptFilePath);
// The errors often have useful information to debug them. In this example there should be none.
if (definition.Errors.Count > 0)
{
throw new Exception("Errors while parsing script files.");
}
// You can instantiate any node defined on the parsed scripts by passing their GUID.
// This creates an instance of that node and all its descendants.
// This also calls Initialize() on the instantiated nodes (in a depth-first traversal, if that matters to you).
// The script files themselves have no explicit root, so you must instantiate the tree using the desired root node's GUID.
var root = definition.Instantiate("root");
// The behaviour tree object serves as a manager that handles the node's execution and async continuations.
// The behaviour tree is what keeps the "continuation state" of the tree. This means you can reuse a single "root" node instance
// on multiple behaviour trees that get updated separately without issues. This is only valid for the node types that Yggdrasil comes
// with by default. If you create new node types inheriting from the Node class, you must make sure they don't keep any state themselves.
_tree = new BehaviourTree(root);
// Some example state object passed to the tree's nodes. Kept as a field here to allocate it only once.
_state = new ExampleState();
// You can pre-pool some coroutines. Otherwise, the first run of the tree will allocate as necessary.
// They get recycled automatically. The amount of coroutines needed depends on how deep an async Coroutine method stack call can get during execution.
// Unless the nodes use multiple nested async Coroutine methods, this means only one Coroutine<Result> per node on the deepest possible branch of the tree.
// Parallel and Interrupt nodes can complicate the math, since they create multiple simultaneously active branches.
// Pre-pooling yourself like this is optional. It'll create as necessary during execution.
Yggdrasil.Coroutines.Coroutine.Pool.PrePool(20);
Yggdrasil.Coroutines.Coroutine <Result> .Pool.PrePool(20);
}
public void RepeatedTypeDefTest()
{
var config = new YggParserConfig();
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(TestRunningAction).Assembly.GetName().Name);
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
var context = parser.BuildFromFiles <TestState>("ParserTests\\repeatedTypeDefTest.ygg");
Assert.IsTrue(context.Errors.Count > 0);
}
public void MalformedCSharpTest()
{
var config = new YggParserConfig();
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(TestRunningAction).Assembly.GetName().Name);
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
var context = parser.BuildFromFiles <TestState>("ParserTests\\malformedCSharpTest.ygg");
Assert.IsTrue(context.Errors.Count > 0);
Assert.IsTrue(context.Errors.Any(e => e.Diagnostics.Count > 0));
}
public void ScriptStructureTest()
{
var config = new YggParserConfig();
config.NodeTypeAssemblies.Add(typeof(Node).Assembly.GetName().Name);
config.NodeTypeAssemblies.Add(typeof(ParameterizedTestNode).Assembly.GetName().Name);
var compiler = new YggCompiler();
var parser = new YggParser(config, compiler);
var context = parser.BuildFromFiles <TestState>("ParserTests\\testScriptA.ygg");
Assert.AreEqual(0, context.Errors.Count);
Assert.AreEqual(4, context.TopmostNodeCount);
// MyCustomTypeA
var nodeA = context.Instantiate("A");
Assert.AreEqual("A", nodeA.Guid);
Assert.AreEqual(typeof(Filter), nodeA.GetType());
Assert.AreEqual(1, nodeA.Children.Count);
var nodeB = nodeA.Children[0];
Assert.AreEqual("B", nodeB.Guid);
Assert.AreEqual(typeof(Sequence), nodeB.GetType());
Assert.AreEqual(3, nodeB.Children.Count);
var nodeC = nodeB.Children[0];
Assert.AreEqual("C", nodeC.Guid);
Assert.AreEqual(typeof(Condition), nodeC.GetType());
Assert.AreEqual(0, nodeC.Children.Count);
var nodeD = nodeB.Children[1];
Assert.AreEqual("D", nodeD.Guid);
Assert.AreEqual(typeof(Condition), nodeD.GetType());
Assert.AreEqual(0, nodeD.Children.Count);
var nodeE = nodeB.Children[2];
Assert.AreEqual("E", nodeE.Guid);
Assert.AreEqual(typeof(Inverter), nodeE.GetType());
Assert.AreEqual(1, nodeE.Children.Count);
var nodeF = nodeE.Children[0];
Assert.AreEqual("F", nodeF.Guid);
Assert.AreEqual(typeof(Condition), nodeF.GetType());
Assert.AreEqual(0, nodeF.Children.Count);
// MyCustomTypeB
var nodeG = context.Instantiate("G");
Assert.AreEqual("G", nodeG.Guid);
Assert.AreEqual(typeof(Sequence), nodeG.GetType());
Assert.AreEqual(2, nodeG.Children.Count);
var nodeH = nodeG.Children[0];
Assert.AreEqual("H", nodeH.Guid);
Assert.AreEqual(typeof(Filter), nodeH.GetType());
CheckMyCustomTypeA(nodeH);
var nodeI = nodeG.Children[1];
Assert.AreEqual("I", nodeI.Guid);
Assert.AreEqual(typeof(Filter), nodeI.GetType());
CheckMyCustomTypeA(nodeI);
// Third node.
var nodeJ = context.Instantiate("J");
Assert.AreEqual("J", nodeJ.Guid);
Assert.AreEqual(typeof(Inverter), nodeJ.GetType());
Assert.AreEqual(1, nodeJ.Children.Count);
var nodeK = nodeJ.Children[0];
Assert.AreEqual("K", nodeK.Guid);
Assert.AreEqual(typeof(Sequence), nodeK.GetType());
CheckMyCustomTypeB(nodeK);
// Parameterized node.
var nodeL = context.Instantiate("L");
Assert.AreEqual("L", nodeL.Guid);
Assert.AreEqual(typeof(ParameterizedTestNode), nodeL.GetType());
Assert.AreEqual(7, nodeL.Children.Count);
var parameterizedNode = (ParameterizedTestNode)nodeL;
Assert.AreEqual(1, parameterizedNode.PropertyA);
Assert.AreEqual(2, parameterizedNode.FieldA);
Assert.AreEqual("hello", parameterizedNode.PropertyB);
Assert.AreEqual("goodbye", parameterizedNode.FieldB);
Assert.AreEqual(3, parameterizedNode.PropertyC);
Assert.AreEqual(4, parameterizedNode.FieldC);
Assert.AreEqual(3, parameterizedNode.ArrayPropertyA.Count);
Assert.AreEqual("one", parameterizedNode.ArrayPropertyA[0].PropertyA);
Assert.AreEqual("two", parameterizedNode.ArrayPropertyA[1].PropertyA);
Assert.AreEqual("three", parameterizedNode.ArrayPropertyA[2].PropertyA);
}