本文整理汇总了C#中Jitter2D.LinearMath.JVector类的典型用法代码示例。如果您正苦于以下问题:C# JVector类的具体用法?C# JVector怎么用?C# JVector使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
JVector类属于Jitter2D.LinearMath命名空间,在下文中一共展示了JVector类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C#代码示例。
示例1: ClosestPoints
public static bool ClosestPoints(ISupportMappable support1, ISupportMappable support2, ref JMatrix orientation1,
ref JMatrix orientation2, ref JVector position1, ref JVector position2,
out JVector p1, out JVector p2, out JVector normal)
{
VoronoiSimplexSolver simplexSolver = simplexSolverPool.GetNew();
simplexSolver.Reset();
p1 = p2 = JVector.Zero;
JVector r = position1 - position2;
JVector w, v;
JVector supVertexA;
JVector rn, vn;
rn = JVector.Negate(r);
SupportMapTransformed(support1, ref orientation1, ref position1, ref rn, out supVertexA);
JVector supVertexB;
SupportMapTransformed(support2, ref orientation2, ref position2, ref r, out supVertexB);
v = supVertexA - supVertexB;
normal = JVector.Zero;
int iter = 0;
float distSq = v.LengthSquared();
float epsilon = 0.00001f;
while ((distSq > epsilon) && (iter++ < MaxIterations))
{
IterationsTaken = iter;
vn = JVector.Negate(v);
SupportMapTransformed(support1, ref orientation1, ref position1, ref vn, out supVertexA);
SupportMapTransformed(support2, ref orientation2, ref position2, ref v, out supVertexB);
w = supVertexA - supVertexB;
if (!simplexSolver.InSimplex(w)) simplexSolver.AddVertex(w, supVertexA, supVertexB);
if (simplexSolver.Closest(out v))
{
distSq = v.LengthSquared();
normal = v;
}
else distSq = 0.0f;
}
simplexSolver.ComputePoints(out p1, out p2);
if (normal.LengthSquared() > JMath.Epsilon * JMath.Epsilon)
normal.Normalize();
simplexSolverPool.GiveBack(simplexSolver);
return true;
}
开发者ID:reidyd,项目名称:jitterphysics,代码行数:57,代码来源:GJKCollide.cs
示例2: FixedLinearSpring
public FixedLinearSpring(RigidBody body, JVector localAnchor, JVector worldAnchor, float springConstant, float dampingConstant)
{
Body = body;
LocalAnchor = localAnchor;
WorldAnchor = worldAnchor;
SpringConstant = springConstant;
DampingConstant = dampingConstant;
Length = (worldAnchor - Body.LocalToWorld(localAnchor)).Length();
}
开发者ID:reidyd,项目名称:jitterphysics,代码行数:9,代码来源:FixedLinearSpring.cs
示例3: BoxBoxTest
/// <summary>
/// Discrete Box vs Box test. Very fast. No contact info. NOTE: ensure UpdateAxes is called for each BoxShape prior.
/// </summary>
/// <param name="A">BoxShape A.</param>
/// <param name="PA">BoxShape A's position.</param>
/// <param name="B">BoxShape B.</param>
/// <param name="PB">BoxShape B's position.</param>
/// <returns></returns>
public static bool BoxBoxTest(ref BoxShape A, ref JVector PA, ref BoxShape B, ref JVector PB)
{
JVector T = PB - PA;
// cache scaled local axes
JVector Ax = A.halfSize.X * A.xAxis;
JVector Ay = A.halfSize.Y * A.yAxis;
JVector Bx = B.halfSize.X * B.xAxis;
JVector By = B.halfSize.Y * B.yAxis;
// axis to test
JVector L = A.xAxis;
float TL = Math.Abs(T * L);
float a = Math.Abs((Ax) * L) + Math.Abs((Ay) * L);
float b = Math.Abs((Bx) * L) + Math.Abs((By) * L);
if (TL > (a + b))
return false;
// axis to test
L = A.yAxis;
TL = Math.Abs(T * L);
a = Math.Abs((Ax) * L) + Math.Abs((Ay) * L);
b = Math.Abs((Bx) * L) + Math.Abs((By) * L);
if (TL > (a + b))
return false;
// axis to test
L = B.xAxis;
TL = Math.Abs(T * L);
a = Math.Abs((Ax) * L) + Math.Abs((Ay) * L);
b = Math.Abs((Bx) * L) + Math.Abs((By) * L);
if (TL > (a + b))
return false;
// axis to test
L = B.yAxis;
TL = Math.Abs(T * L);
a = Math.Abs((Ax) * L) + Math.Abs((Ay) * L);
b = Math.Abs((Bx) * L) + Math.Abs((By) * L);
if (TL > (a + b))
return false;
// if all axes overlap collision exists
return true;
}
开发者ID:reidyd,项目名称:jitterphysics,代码行数:61,代码来源:Collision.cs
示例4: SupportMapTransformed
public static void SupportMapTransformed(ISupportMappable support,
ref JMatrix orientation, ref JVector position, ref JVector direction, out JVector result)
{
// THIS IS *THE* HIGH FREQUENCY CODE OF THE COLLLISION PART OF THE ENGINE
result.X = ((direction.X * orientation.M11) + (direction.Y * orientation.M12));
result.Y = ((direction.X * orientation.M21) + (direction.Y * orientation.M22));
support.SupportMapping(ref result, out result);
float x = ((result.X * orientation.M11) + (result.Y * orientation.M21));
float y = ((result.X * orientation.M12) + (result.Y * orientation.M22));
result.X = position.X + x;
result.Y = position.Y + y;
}
开发者ID:reidyd,项目名称:jitterphysics,代码行数:15,代码来源:GJKCollide.cs
示例5: SupportMapping
/// <summary>
/// SupportMapping. Finds the point in the shape furthest away from the given direction.
/// Imagine a plane with a normal in the search direction. Now move the plane along the normal
/// until the plane does not intersect the shape. The last intersection point is the result.
/// </summary>
/// <param name="direction">The direction.</param>
/// <param name="result">The result.</param>
public override void SupportMapping(ref JVector direction, out JVector result)
{
float maxDotProduct = float.MinValue;
int maxIndex = 0;
float dotProduct;
for (int i = 0; i < vertices.Count; i++)
{
dotProduct = JVector.Dot(vertices[i], direction);
if (dotProduct > maxDotProduct)
{
maxDotProduct = dotProduct;
maxIndex = i;
}
}
result = vertices[maxIndex] - this.shifted;
}
开发者ID:reidyd,项目名称:jitterphysics,代码行数:25,代码来源:ConvexHullShape.cs
示例6: CircleCircleTest
public static bool CircleCircleTest(JVector centerA, float radiusA, JVector centerB, float radiusB, out JVector pointA, out JVector pointB, out JVector normal, out float distance)
{
// ||A-B|| - (r1+r2) < 0
float d = JVector.Distance(centerA, centerB);
float r = radiusA + radiusB;
distance = d - r;
normal = (centerA - centerB) / d;
//penetrationVector = normal * distance;
// calculate closest 2 points
pointA = JVector.Negate(normal) * radiusA + centerA;
pointB = normal * radiusB + centerB;
if (distance < 0.0f)
return true;
else
return false;
}
开发者ID:jumonb,项目名称:hideandsneeze,代码行数:21,代码来源:Collision.cs
示例7: CircleCapsuleTest
public static bool CircleCapsuleTest(JVector centerA, float radiusA, JVector centerB, JVector axis, float length, float radiusB, out JVector pointA, out JVector pointB, out JVector normal, out float distance)
{
// get capsule endpoints
var p0 = centerB - axis * (length * 0.5f);
var p1 = centerB + axis * (length * 0.5f);
// get vector from endpoint to circle
var D = centerA - p0;
// project vector onto axis and clamp
var d = JVector.Dot(D, axis);
d = JMath.Clamp(d, 0, length);
// get point on axis
var R = p0 + axis * d;
// distance
var b = Math.Abs((centerA - R).Length());
normal = (centerA - R) / b;
// calculate closest 2 points
var RH = JVector.Normalize(centerA - R);
pointA = JVector.Negate(RH) * radiusA + centerA;
pointB = RH * radiusB + R;
normal.Negate();
distance = b - (radiusA + radiusB);
//
if (b < radiusA + radiusB)
return true;
return false;
}
开发者ID:jumonb,项目名称:hideandsneeze,代码行数:36,代码来源:Collision.cs
示例8: DrawPoly
void DrawPoly(List<JVector> poly, JVector pos, JMatrix o, Color color)
{
for (int i = 0; i < poly.Count - 1; i++)
{
JVector a = JVector.Transform(poly[i], o * JMatrix.CreateTranslation(pos));
JVector b = JVector.Transform(poly[i + 1], o * JMatrix.CreateTranslation(pos));
DebugDrawer.DrawLine(a, b, color);
}
JVector c = JVector.Transform(poly[0], o * JMatrix.CreateTranslation(pos));
JVector d = JVector.Transform(poly[poly.Count - 1], o * JMatrix.CreateTranslation(pos));
DebugDrawer.DrawLine(c, d, color);
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:12,代码来源:CollisionDemo.cs
示例9: Update
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
KeyboardState keys = Keyboard.GetState();
JVector moveVector = JVector.Zero;
float amountOfMovement = 0.05f;
if (keys.IsKeyDown(Keys.Right))
moveVector.X += amountOfMovement;
if (keys.IsKeyDown(Keys.Left))
moveVector.X -= amountOfMovement;
if (keys.IsKeyDown(Keys.Down))
moveVector.Y -= amountOfMovement;
if (keys.IsKeyDown(Keys.Up))
moveVector.Y += amountOfMovement;
PB += moveVector;
OA = (float)gameTime.TotalGameTime.TotalSeconds * 0.1f;
OB = (float)gameTime.TotalGameTime.TotalSeconds * -0.1f;
DrawBox(A, PA, OA, Color.Blue * 0.25f);
DrawBox(B, PB, OB, Color.Green * 0.25f);
float t = 0.0f;
JVector[] CA = new JVector[2], CB = new JVector[2];
int NumContacts = 0;
sw.Start();
JMatrix OAM = JMatrix.CreateRotationZ(OA);
JMatrix OBM = JMatrix.CreateRotationZ(OB);
for (int i = 0; i < 1; i++)
{
A.UpdateAxes(OA);
B.UpdateAxes(OB);
//hit = Collision.BoxBoxTest(ref A, ref PA, ref B, ref PB);
//AV = new List<JVector> { A.GetCorner(0), A.GetCorner(1), A.GetCorner(2), A.GetCorner(3) };
//BV = new List<JVector> { B.GetCorner(0), B.GetCorner(1), B.GetCorner(2), B.GetCorner(3) };
//hit = SAT.Collide(ref AV, ref PA, ref VA, ref OAM,
// ref BV, ref PB, ref VB, ref OBM,
// ref normal, ref t);
//if (hit)
//{
// SAT.FindContacts(ref AV, ref PA, ref VA, ref OAM,
// ref BV, ref PB, ref VB, ref OBM,
// ref normal, t, out CA, out CB, out NumContacts);
// normal.Normalize();
//}
hit = Collision.BoxBoxTestContact(ref A, ref PA, ref OAM, ref B, ref PB, ref OBM,
out normal, out t, out CA, out CB, out NumContacts);
penetration = t;
iterations = NumContacts;
}
sw.Stop();
ticks = sw.ElapsedTicks / 1;
sw.Reset();
if (hit)
{
//DrawBox(A, PA + normal * (t * 0.5f), OA, Color.Blue);
//DrawBox(B, PB - normal * (t * 0.5f), OB, Color.Green);
for (int i = 0; i < NumContacts; i++)
{
DebugDrawer.DrawPoint(CA[i]);// + normal * (t * 0.5f));
DebugDrawer.DrawPoint(CB[i]);// - normal * (t * 0.5f));
}
}
base.Update(gameTime);
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:82,代码来源:CollisionDemo.cs
示例10: ToXNAVector2
public static Vector2 ToXNAVector2(JVector vector)
{
return new Vector2(vector.X, vector.Y);
}
开发者ID:reignstudios,项目名称:jitterphysics,代码行数:4,代码来源:Conversion.cs
示例11: Raycast
public override bool Raycast(JVector rayOrigin, JVector rayDirection, RaycastCallback raycast, out RigidBody body, out JVector normal, out float fraction)
{
throw new NotImplementedException();
//body = null; normal = JVector.Zero; fraction = float.MaxValue;
//JVector tempNormal; float tempFraction;
//bool result = false;
//// TODO: This can be done better in CollisionSystemPersistenSAP
//foreach (IBroadphaseEntity e in bodyList)
//{
// if (e is SoftBody)
// {
// SoftBody softBody = e as SoftBody;
// foreach (RigidBody b in softBody.VertexBodies)
// {
// if (this.Raycast(b, rayOrigin, rayDirection, out tempNormal, out tempFraction))
// {
// if (tempFraction < fraction && (raycast == null || raycast(b, tempNormal, tempFraction)))
// {
// body = b;
// normal = tempNormal;
// fraction = tempFraction;
// result = true;
// }
// }
// }
// }
// else
// {
// RigidBody b = e as RigidBody;
// if (this.Raycast(b, rayOrigin, rayDirection, out tempNormal, out tempFraction))
// {
// if (tempFraction < fraction && (raycast == null || raycast(b, tempNormal, tempFraction)))
// {
// body = b;
// normal = tempNormal;
// fraction = tempFraction;
// result = true;
// }
// }
// }
//}
//return result;
}
开发者ID:reidyd,项目名称:jitterphysics,代码行数:47,代码来源:CollisionSystemPersistentSAP.cs
示例12: JVector
static JVector()
{
One = new JVector(1, 1);
Zero = new JVector(0, 0);
Left = new JVector(1, 0);
Right = new JVector(-1, 0);
Up = new JVector(0, 1);
Down = new JVector(0, -1);
MinValue = new JVector(float.MinValue);
MaxValue = new JVector(float.MaxValue);
Arbitrary = new JVector(1, 1);
InternalZero = Zero;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:13,代码来源:JVector.cs
示例13: TransposedTransform
/// <summary>
/// Transforms a vector by the transposed of the given Matrix.
/// </summary>
/// <param name="position">The vector to transform.</param>
/// <param name="matrix">The transform matrix.</param>
/// <param name="result">The transformed vector.</param>
public static void TransposedTransform(ref JVector position, ref JMatrix matrix, out JVector result)
{
float num0 = ((position.X * matrix.M11) + (position.Y * matrix.M12));
float num1 = ((position.X * matrix.M21) + (position.Y * matrix.M22));
result.X = num0;
result.Y = num1;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:14,代码来源:JVector.cs
示例14: Multiply
/// <summary>
/// Multiply a vector with a factor.
/// </summary>
/// <param name="value1">The vector to multiply.</param>
/// <param name="scaleFactor">The scale factor.</param>
/// <param name="result">Returns the multiplied vector.</param>
public static void Multiply(ref JVector value1, float scaleFactor, out JVector result)
{
result.X = value1.X * scaleFactor;
result.Y = value1.Y * scaleFactor;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:11,代码来源:JVector.cs
示例15: Transform
public static JVector Transform(JVector position, JMatrix matrix)
{
JVector result;
JVector.Transform(ref position, ref matrix, out result);
return result;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:6,代码来源:JVector.cs
示例16: Negate
/// <summary>
/// Inverses the direction of a vector.
/// </summary>
/// <param name="value">The vector to inverse.</param>
/// <returns>The negated vector.</returns>
public static JVector Negate(JVector value)
{
JVector result;
JVector.Negate(ref value, out result);
return result;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:11,代码来源:JVector.cs
示例17: Clamp
internal static JVector Clamp(JVector v, float len)
{
return (JVector.Dot(v, v) > len * len) ? JVector.Multiply(JVector.Normalize(v), len) : v;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:4,代码来源:JVector.cs
示例18: ScreenToWorldSpace
public JVector ScreenToWorldSpace(JVector position)
{
var t = this.Game.GraphicsDevice.Viewport.Unproject(new Vector3(position.X, position.Y, 0), Projection, View, Matrix.Identity);
return new JVector(t.X, t.Y);
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:5,代码来源:Camera.cs
示例19: Normalize
public static JVector Normalize(JVector value)
{
JVector result;
JVector.Normalize(ref value, out result);
return result;
}
开发者ID:ajmd17,项目名称:apexengine-sharp,代码行数:6,代码来源:JVector.cs
示例20: ToXNAVector3
public static Vector3 ToXNAVector3(JVector vector)
{
return new Vector3(vector.X, vector.Y, 0.0f);
}
开发者ID:reignstudios,项目名称:jitterphysics,代码行数:4,代码来源:Conversion.cs
注:本文中的Jitter2D.LinearMath.JVector类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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