private void buildThrustersAndAddToObject(GameObjectTemplate template, PhysicsComponent @object)
{
if (template.thrusters == null)
{
return;
}
thrusterResponsibility.physicsObjectIdToThrusters[@object.id] = new List <ThrusterResponsibility.ThrusterBinding>();
foreach (serialization.Thruster iThruster in template.thrusters)
{
SpatialVectorDouble objectLocalPosition = new SpatialVectorDouble(iThruster.locationPosition);
SpatialVectorDouble objectLocalDirection = new SpatialVectorDouble(iThruster.direction);
double maximalForce = iThruster.maximalForce;
AttachedForce attachedForce = new AttachedForce(objectLocalPosition, objectLocalDirection);
@object.attachedForces.Add(attachedForce);
ThrusterResponsibility.ThrusterBinding thrusterBinding = new ThrusterResponsibility.ThrusterBinding();
thrusterBinding.attachedForce = attachedForce;
thrusterBinding.maximalForce = maximalForce;
thrusterBinding.tag = iThruster.tag;
thrusterResponsibility.physicsObjectIdToThrusters[@object.id].Add(thrusterBinding);
}
}
static void Main(string[] args)
{
{
double[][] arr;
arr = new double[3][];
arr[0] = new double[4] {
9, 8, 7, 6
};
arr[1] = new double[4] {
42, 13, 7, 2
};
arr[2] = new double[4] {
101, 102, 103, 104
};
MeshAttributeCLASSES meshComponent2 = MeshAttributeCLASSES.makeDouble4(arr);
double[] readback = meshComponent2.getDouble4Accessor()[1];
int breakPointHere = 42;
}
// test solver for trivial cases
{
double one = 1.0;
double J11 = 1.0, J22 = 1.0, J33 = 1.0, // principal moments of inertia of the body
w1 = 0, w2 = 0, w3 = 0, // angular velocity of spacecraft in spacecraft frame
// result values
q1Dot, q2Dot, q3Dot, q4Dot,
w1Dot, w2Dot, w3Dot,
// coeefficients, taken from the paper
gamma = 0.7,
aCoefficient = 1.25,
d = 7.5, k = 3.0, betaOne = 0.001;
Quaternion spacecraftOrientationError;
// set to identity
/*
* spacecraftOrientationError.i = 0;
* spacecraftOrientationError.j = 0;
* spacecraftOrientationError.k = 0;
* spacecraftOrientationError.scalar = 1;
*/
spacecraftOrientationError = QuaternionUtilities.makeFromAxisAndAngle(new SpatialVectorDouble(new double[] { 1, 0, 0 }), 1.0);
QuaternionFeedbackRegulatorForSpacecraft.calcControl(
J11, J22, J33,
spacecraftOrientationError.i, spacecraftOrientationError.j, spacecraftOrientationError.k, spacecraftOrientationError.scalar,
w1, w2, w3,
out q1Dot, out q2Dot, out q3Dot, out q4Dot,
out w1Dot, out w2Dot, out w3Dot,
aCoefficient,
gamma,
d, k,
betaOne
);
// changes must be zero
Debug.Assert(q1Dot == 0);
Debug.Assert(q2Dot == 0);
Debug.Assert(q3Dot == 0);
Debug.Assert(q4Dot == 0);
Debug.Assert(w1Dot == 0);
Debug.Assert(w2Dot == 0);
Debug.Assert(w3Dot == 0);
int breakPointHere = 42;
}
SimplexSolver simplexSolver = new SimplexSolver();
/* first example from video tutorial, https://www.youtube.com/watch?v=Axg9OhJ4cjg, bottom row is negative unlike in the video
*/
simplexSolver.matrix = Matrix.makeByRowsAndColumns(3, 5);
simplexSolver.matrix[0, 0] = 4;
simplexSolver.matrix[0, 1] = 8;
simplexSolver.matrix[0, 2] = 1;
simplexSolver.matrix[0, 3] = 0;
simplexSolver.matrix[0, 4] = 24;
simplexSolver.matrix[1, 0] = 2;
simplexSolver.matrix[1, 1] = 1;
simplexSolver.matrix[1, 2] = 0;
simplexSolver.matrix[1, 3] = 1;
simplexSolver.matrix[1, 4] = 10;
simplexSolver.matrix[2, 0] = -3;
simplexSolver.matrix[2, 1] = -4;
simplexSolver.matrix[2, 2] = 0;
simplexSolver.matrix[2, 3] = 0;
simplexSolver.matrix[2, 4] = 0;
simplexSolver.iterate();
// result must be ~16.67
Debug.Assert(simplexSolver.matrix[2, 4] > 16.6 && simplexSolver.matrix[2, 4] < 16.8);
// TODO< move into unittest for Matrix >
Matrix toInverseMatrix = new Matrix(2, 2);
toInverseMatrix[0, 0] = 2.0f;
toInverseMatrix[0, 1] = 1.0f;
toInverseMatrix[1, 0] = 2.0f;
toInverseMatrix[1, 1] = 2.0f;
Matrix inversedMatrix = toInverseMatrix.inverse();
Debug.Assert(System.Math.Abs(inversedMatrix[0, 0] - 1.0f) < 0.001f);
Debug.Assert(System.Math.Abs(inversedMatrix[0, 1] - -0.5f) < 0.001f);
Debug.Assert(System.Math.Abs(inversedMatrix[1, 0] - -1.0f) < 0.001f);
Debug.Assert(System.Math.Abs(inversedMatrix[1, 1] - 1.0f) < 0.001f);
// test pid controller
if (false)
{
Pid.Configuration pidConfiguration = new Pid.Configuration();
pidConfiguration.integral = 0;
pidConfiguration.derivative = 0.1;
pidConfiguration.proportial = 0.3;
Pid pid = Pid.makeByTargetAndConfiguration(0, pidConfiguration);
double value = 1.0;
double control;
control = pid.step(value, 0.5);
value += control;
for (int i = 0; i < 10; i++)
{
control = pid.step(value, 0.5);
value += control;
Console.WriteLine("value={0} control={1}", value, control);
}
int breakPointHere0 = 1;
}
EntityManager entityManager = new EntityManager();
SolidResponsibility solidResponsibility;
EffectResponsibility effectResponsibility;
ThrusterResponsibility thrusterResponsibility;
AttitudeAndAccelerationControlResponsibility attitudeAndAccelerationControlResponsibility;
thrusterResponsibility = new ThrusterResponsibility();
attitudeAndAccelerationControlResponsibility = new AttitudeAndAccelerationControlResponsibility(thrusterResponsibility);
effectResponsibility = new EffectResponsibility();
solidResponsibility = new SolidResponsibility();
solidResponsibility.mapping = new PhysicsObjectIdToSolidClusterMapping();
EntityController entityController = new EntityController();
IKeyboardInputHandler keyboardInputHandler = new PlayerShipControlInputHandler(entityController);
KeyboardInputRemapper keyboardInputRemapper = new KeyboardInputRemapper(keyboardInputHandler);
SoftwareRenderer softwareRenderer = new SoftwareRenderer();
PrototypeForm prototypeForm = new PrototypeForm();
prototypeForm.softwareRenderer = softwareRenderer;
IGuiRenderer guiRenderer = prototypeForm.softwareGuiRenderer;
GuiContext guiContext = new GuiContext(guiRenderer);
prototypeForm.guiContext = guiContext;
KeyboardEventRouterOfGui keyboardEventRouterOfGui = new KeyboardEventRouterOfGui(guiContext.selectionTracker);
KeyboardInputRouter keyboardInputRouter = new KeyboardInputRouter(keyboardInputRemapper, keyboardEventRouterOfGui);
prototypeForm.keyboardInputRouter = keyboardInputRouter;
prototypeForm.Show();
PhysicsEngine physicsEngine = new PhysicsEngine();
solidResponsibility.physicsEngine = physicsEngine;
physicsEngine.collisionHandlers.Add(new DefaultCollisionHandler()); // add the default collision handler for absorbing all particles
AttachedForce thruster = new AttachedForce(
new SpatialVectorDouble(new double[] { 0, 1, 0 }), // localLocation
new SpatialVectorDouble(new double[] { 1, 0, 0 }) // localDirection
);
PhysicsComponent physicsComponent;
{
double mass = 1.0;
Matrix inertiaTensor = InertiaHelper.calcInertiaTensorForCube(mass, 1.0, 1.0, 1.0);
physicsComponent = physicsEngine.createPhysicsComponent(new SpatialVectorDouble(new double[] { 0, 0, 10 }), new SpatialVectorDouble(new double[] { 0, 0, 0 }), mass, inertiaTensor);
}
physicsComponent.attachedForces.Add(thruster);
MeshComponent meshComponent = new MeshComponent();
meshComponent.mesh = new MeshWithExplicitFaces();
meshComponent.mesh.faces = new MeshWithExplicitFaces.Face[1];
meshComponent.mesh.faces[0] = new MeshWithExplicitFaces.Face();
meshComponent.mesh.faces[0].verticesIndices = new uint[] { 0, 1, 2 };
{ // create a VerticesWithAttributes with just positions
MutableMeshAttribute positionMeshAttribute = MutableMeshAttribute.makeDouble4ByLength(4);
positionMeshAttribute.getDouble4Accessor()[0] = new double[] { -1, -1, 0, 1 };
positionMeshAttribute.getDouble4Accessor()[1] = new double[] { 1, -1, 0, 1 };
positionMeshAttribute.getDouble4Accessor()[2] = new double[] { 0, 1, 0, 1 };
positionMeshAttribute.getDouble4Accessor()[3] = new double[] { 0, 0, 1, 1 };
VerticesWithAttributes verticesWithAttributes = new VerticesWithAttributes(new AbstractMeshAttribute[] { positionMeshAttribute }, 0);
meshComponent.mesh.verticesWithAttributes = verticesWithAttributes;
}
//TransformedMeshComponent transformedMeshComponentForPhysics = new TransformedMeshComponent();
//transformedMeshComponentForPhysics.meshComponent = meshComponent;
IList <ColliderComponent> colliderComponents = new List <ColliderComponent>();
{
SpatialVectorDouble colliderComponentSize = new SpatialVectorDouble(new double[] { 2, 2, 2 });
SpatialVectorDouble colliderComponentLocalPosition = new SpatialVectorDouble(new double[] { 0, 0, 0 });
SpatialVectorDouble colliderComponentLocalRotation = new SpatialVectorDouble(new double[] { 0, 0, 0 });
ColliderComponent colliderComponent0 = ColliderComponent.makeBox(colliderComponentSize, colliderComponentLocalPosition, colliderComponentLocalRotation);
colliderComponents.Add(colliderComponent0);
}
///physicsEngine.physicsAndMeshPairs.Add(new PhysicsComponentAndCollidersPair(physicsComponent, colliderComponents));
// same mesh for the visualization
TransformedMeshComponent transformedMeshComponentForRendering = new TransformedMeshComponent();
transformedMeshComponentForRendering.meshComponent = meshComponent;
///softwareRenderer.physicsAndMeshPairs.Add(new PhysicsComponentAndMeshPair(physicsComponent, transformedMeshComponentForRendering));
physicsEngine.tick();
// TODO< read object description from json and create physics and graphics objects >
// TODO< read and create solid description from json >
// create and store solids of rocket
// refactored
/*
* if ( true ) {
*
*
* SolidCluster solidClusterOfRocket = new SolidCluster();
*
* // create solid of rocket
* {
* SpatialVectorDouble solidSize = new SpatialVectorDouble(new double[] { 2, 2, 2 });
* double massOfSolidInKilogram = 1.0;
* IList<CompositionFraction> solidCompositionFractions = new List<CompositionFraction>() { new CompositionFraction(new Isotope("Fe56"), massOfSolidInKilogram) };
* Composition solidComposition = new Composition(solidCompositionFractions);
*
* physics.solid.Solid solid = physics.solid.Solid.makeBox(solidComposition, solidSize);
*
* SpatialVectorDouble solidLocalPosition = new SpatialVectorDouble(new double[] { 0, 0, 0 });
* SpatialVectorDouble solidLocalRotation = new SpatialVectorDouble(new double[] { 0, 0, 0 });
*
* solidClusterOfRocket.solids.Add(new SolidCluster.SolidWithPositionAndRotation(solid, solidLocalPosition, solidLocalRotation));
* }
*
* /// TODO, uncommented because it uses the not existing physics object
* /// solidResponsibility.mapping.physicsObjectIdToSolidCluster[rocketPhysicsObject.id] = solidClusterOfRocket;
* }
*/
// add test particle
if (false)
{
SpatialVectorDouble particlePosition = new SpatialVectorDouble(new double[] { 0, 0, 0 });
SpatialVectorDouble particleVelocity = new SpatialVectorDouble(new double[] { 0, 0, 1 });
PhysicsComponent particlePhysicsComponent = physicsEngine.createPhysicsComponent(particlePosition, particleVelocity, 1.0, null);
physicsEngine.addParticle(particlePhysicsComponent);
}
// write game object for TestMissile
if (true)
{
DemoObjectSerializer.seralizeAndWriteShip();
DemoObjectSerializer.serializeAndWriteMissile();
}
GameObjectBuilder gameObjectBuilder = new GameObjectBuilder();
gameObjectBuilder.physicsEngine = physicsEngine;
gameObjectBuilder.softwareRenderer = softwareRenderer;
gameObjectBuilder.solidResponsibility = solidResponsibility;
gameObjectBuilder.effectResponsibility = effectResponsibility;
gameObjectBuilder.thrusterResponsibility = thrusterResponsibility;
gameObjectBuilder.attitudeAndAccelerationControlResponsibility = attitudeAndAccelerationControlResponsibility;
// load missile game object from json and construct it
if (false)
{
GameObjectTemplate deserilizedGameObjectTemplate;
// load
{
List <string> uriParts = new List <string>(AssemblyDirectory.Uri.Segments);
uriParts.RemoveAt(0); // remove first "/"
uriParts.RemoveRange(uriParts.Count - 4, 4);
uriParts.AddRange(new string[] { "gameResources/", "prototypingMissile.json" });
string path = string.Join("", uriParts).Replace('/', '\\').Replace("%20", " ");
string fileContent = File.ReadAllText(path);
deserilizedGameObjectTemplate = GameObjectTemplate.deserialize(fileContent);
}
// build game object from template
Entity createdEntity;
{
SpatialVectorDouble globalPosition = new SpatialVectorDouble(new double[] { 0, 0, 5 });
SpatialVectorDouble globalVelocity = new SpatialVectorDouble(new double[] { 0, 0, 0 });
createdEntity = gameObjectBuilder.buildFromTemplate(deserilizedGameObjectTemplate, globalPosition, globalVelocity);
entityManager.addEntity(createdEntity);
}
// manually add components
{
// TODO< chemical explosive ignition component >
DummyComponent chemicalExplosiveIgnitionComponent = new DummyComponent();
// remap proximityEnter to explode
EventRemapperComponent eventRemapper = new EventRemapperComponent(chemicalExplosiveIgnitionComponent);
eventRemapper.eventTypeMap["proximityEnter"] = "explode";
// TODO< blacklist somehow other missiles >
PhysicsComponent parentPhysicsComponent = createdEntity.getSingleComponentsByType <PhysicsComponent>();
ProximityDetectorComponent proximityDetector = ProximityDetectorComponent.makeSphereDetector(physicsEngine, parentPhysicsComponent, 20.0, eventRemapper);
entityManager.addComponentToEntity(createdEntity, proximityDetector);
}
}
Entity playerShip;
if (true)
{
GameObjectTemplate deserilizedGameObjectTemplate;
// load
{
List <string> uriParts = new List <string>(AssemblyDirectory.Uri.Segments);
uriParts.RemoveAt(0); // remove first "/"
uriParts.RemoveRange(uriParts.Count - 4, 4);
uriParts.AddRange(new string[] { "gameResources/", "prototypingShip.json" });
string path = string.Join("", uriParts).Replace('/', '\\').Replace("%20", " ");
string fileContent = File.ReadAllText(path);
deserilizedGameObjectTemplate = GameObjectTemplate.deserialize(fileContent);
}
// build game object from template
{
SpatialVectorDouble globalPosition = new SpatialVectorDouble(new double[] { 0, 0, 10 });
SpatialVectorDouble globalVelocity = new SpatialVectorDouble(new double[] { 0, 0, 0 });
Entity createdEntity = gameObjectBuilder.buildFromTemplate(deserilizedGameObjectTemplate, globalPosition, globalVelocity);
entityManager.addEntity(createdEntity);
playerShip = createdEntity;
}
}
Entity aiShip = null;
EntityController aiShipController = new EntityController();
VehicleAlignToCommand command = null;
bool withTestAiShip = true;
if (withTestAiShip)
{
GameObjectTemplate deserilizedGameObjectTemplate;
// load
{
List <string> uriParts = new List <string>(AssemblyDirectory.Uri.Segments);
uriParts.RemoveAt(0); // remove first "/"
uriParts.RemoveRange(uriParts.Count - 4, 4);
uriParts.AddRange(new string[] { "gameResources/", "prototypingShip.json" });
string path = string.Join("", uriParts).Replace('/', '\\').Replace("%20", " ");
string fileContent = File.ReadAllText(path);
deserilizedGameObjectTemplate = GameObjectTemplate.deserialize(fileContent);
}
// build game object from template
{
SpatialVectorDouble globalPosition = new SpatialVectorDouble(new double[] { 0, 0, 10 });
SpatialVectorDouble globalVelocity = new SpatialVectorDouble(new double[] { 0, 0, 0 });
Entity createdEntity = gameObjectBuilder.buildFromTemplate(deserilizedGameObjectTemplate, globalPosition, globalVelocity);
entityManager.addEntity(createdEntity);
aiShip = createdEntity;
}
{ // control
aiShip.getSingleComponentsByType <VehicleControllerComponent>().controller = aiShipController;
}
{ // AI initialization
double dt = 1.0 / 60.0;
SpatialVectorDouble targetDirection = new SpatialVectorDouble(new double[] { 1, 0, 0.1 }).normalized();
double targetDerivationDistance = 0.001;
ulong targetPhysicsObjectId = aiShip.getSingleComponentsByType <PhysicsComponent>().id;
command = VehicleAlignToCommand.makeByGettingPidConfigurationFromAttitudeAndAccelerationControlResponsibility(
attitudeAndAccelerationControlResponsibility,
physicsEngine,
dt,
targetDirection,
aiShipController,
targetPhysicsObjectId,
targetDerivationDistance);
}
}
//
{
}
playerShip.getSingleComponentsByType <VehicleControllerComponent>().controller = entityController;
// create test GUI
{
Button button = new subsystems.gui.Button();
button.position = new SpatialVectorDouble(new double[] { 0.2, 0.2 });
button.size = new SpatialVectorDouble(new double[] { 0.3, 0.1 });
button.text = "[Gamesave05-res.save](35)";
button.textScale = new SpatialVectorDouble(new double[] { 0.05, 0.08 });
guiContext.addGuiElement(button);
}
ulong frameCounter = 0;
ulong debugFrameCounter = 0; // used to limit the frames we do for debugging a scenario
bool isFixedScenarioDebugMode = false;
// TODO< use logger >
StreamWriter debugLogFileOfVariables = null; // used to debug variables and coeeficients of the debug scenario
if (isFixedScenarioDebugMode)
{
if (!File.Exists("E:\\myLogShipOrientation.txt"))
{
using (var stream = File.Create("E:\\myLogShipOrientation.txt"));
}
debugLogFileOfVariables = File.AppendText("E:\\myLogShipOrientation.txt");
}
for (;;)
{
Console.WriteLine("frame={0}", frameCounter);
guiContext.tick();
physicsEngine.tick();
if (!isFixedScenarioDebugMode)
{
prototypeForm.Refresh();
Application.DoEvents(); // HACK, EVIL
}
// AI
{
// we just do this small AI because we are testing
if (false && aiShip != null)
{
command.process();
}
}
// AI - attitude control test
// we change the rotation velocity of the spacecraft directly to simulate "perfect" thruster control
{
PhysicsComponent objectOfControlledSpacecraft = aiShip.getSingleComponentsByType <PhysicsComponent>();
double
// principal moments of inertia of the body
// the controller assumes that the body has an inertia tensor like an box, but small derivations are propably fine, too
J11 = objectOfControlledSpacecraft.inertiaTensor[0, 0], J22 = objectOfControlledSpacecraft.inertiaTensor[1, 1], J33 = objectOfControlledSpacecraft.inertiaTensor[2, 2],
// angular velocity of spacecraft in spacecraft frame
w1 = objectOfControlledSpacecraft.eulerLocalAngularVelocity.x,
w2 = objectOfControlledSpacecraft.eulerLocalAngularVelocity.y,
w3 = objectOfControlledSpacecraft.eulerLocalAngularVelocity.z,
// result values
q1Dot, q2Dot, q3Dot, q4Dot,
w1Dot, w2Dot, w3Dot,
// coeefficients, taken from the paper
gamma = 0.7,
aCoefficient = 1.25,
d = 7.5, k = 3.0, betaOne = 0.001;
// calculate the rotation delta to our target orientation from the current orientation
double debugMagnitude = objectOfControlledSpacecraft.rotation.magnitude;
Quaternion spacecraftOrientationError = objectOfControlledSpacecraft.rotation.difference(QuaternionUtilities.makeFromEulerAngles(0, 0.5, 0));
QuaternionFeedbackRegulatorForSpacecraft.calcControl(
J11, J22, J33,
spacecraftOrientationError.i, spacecraftOrientationError.j, spacecraftOrientationError.k, spacecraftOrientationError.scalar,
w1, w2, w3,
out q1Dot, out q2Dot, out q3Dot, out q4Dot,
out w1Dot, out w2Dot, out w3Dot,
aCoefficient,
gamma,
d, k,
betaOne
);
Console.WriteLine(
"w1dot={0}, w2dot={1}, w3dot={2}", w1Dot.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture), w2Dot.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture), w3Dot.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture)
);
if (isFixedScenarioDebugMode)
{
debugLogFileOfVariables.WriteLine("w1dot={0}, w2dot={1}, w3dot={2}", w1Dot.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture), w2Dot.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture), w3Dot.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture));
debugLogFileOfVariables.Flush();
}
// access directly
objectOfControlledSpacecraft.eulerLocalAngularVelocity.x += (w1Dot * (1.0 / 60.0));
objectOfControlledSpacecraft.eulerLocalAngularVelocity.y += (w2Dot * (1.0 / 60.0));
objectOfControlledSpacecraft.eulerLocalAngularVelocity.z += (w3Dot * (1.0 / 60.0));
}
attitudeAndAccelerationControlResponsibility.resetAllThrusters();
entityManager.updateAllEntities();
// order after update is important
attitudeAndAccelerationControlResponsibility.limitAllThrusters();
attitudeAndAccelerationControlResponsibility.transferThrusterForce();
//thruster.forceInNewton = 0.5 * entityController.inputAcceleration;
if (!isFixedScenarioDebugMode)
{
Thread.Sleep((int)((1.0 / 60.0) * 1000.0));
}
if (isFixedScenarioDebugMode)
{
debugLogFileOfVariables.WriteLine("{0},", aiShip.getSingleComponentsByType <PhysicsComponent>().rotation.j.ToString("0.0000", System.Globalization.CultureInfo.InvariantCulture));
debugLogFileOfVariables.Flush();
}
//File.AppendText("E:\\myLogShipOrientation.txt").WriteLine("{0},", aiShip.getSingleComponentsByType<PhysicsComponent>().rotation.y);
if (isFixedScenarioDebugMode && debugFrameCounter >= 8000) // 30000
{
break;
}
debugFrameCounter++;
frameCounter++;
}
}
