本文整理汇总了C#中Box2DX.Common.Vec2类的典型用法代码示例。如果您正苦于以下问题：C# Vec2类的具体用法？C# Vec2怎么用？C# Vec2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。
Vec2类属于Box2DX.Common命名空间，在下文中一共展示了Vec2类的15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，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: UpdateSweepRadius
internal override void UpdateSweepRadius(Vec2 center)
{
// Update the sweep radius (maximum radius) as measured from
// a local center point.
Vec2 d = _localPosition - center;
_sweepRadius = d.Length() + _radius - Settings.ToiSlop;
}示例2: DrawSolidCircle
public override void DrawSolidCircle(Vec2 center, float radius, Vec2 axis, Color color)
{
float k_segments = 16.0f;
float k_increment = 2.0f * Box2DX.Common.Settings.Pi / k_segments;
float theta = 0.0f;
Gl.glEnable(Gl.GL_BLEND);
Gl.glBlendFunc(Gl.GL_SRC_ALPHA, Gl.GL_ONE_MINUS_SRC_ALPHA);
Gl.glColor4f(0.5f * color.R, 0.5f * color.G, 0.5f * color.B, 0.5f);
Gl.glBegin(Gl.GL_TRIANGLE_FAN);
for (int i = 0; i < k_segments; ++i)
{
Vec2 v = center + radius * new Vec2((float)SysMath.Cos(theta), (float)SysMath.Sin(theta));
Gl.glVertex2f(v.X, v.Y);
theta += k_increment;
}
Gl.glEnd();
Gl.glDisable(Gl.GL_BLEND);
theta = 0.0f;
Gl.glColor4f(color.R, color.G, color.B, 1.0f);
Gl.glBegin(Gl.GL_LINE_LOOP);
for (int i = 0; i < k_segments; ++i)
{
Vec2 v = center + radius * new Vec2((float)SysMath.Cos(theta), (float)SysMath.Sin(theta));
Gl.glVertex2f(v.X, v.Y);
theta += k_increment;
}
Gl.glEnd();
Vec2 p = center + radius * axis;
Gl.glBegin(Gl.GL_LINES);
Gl.glVertex2f(center.X, center.Y);
Gl.glVertex2f(p.X, p.Y);
Gl.glEnd();
}示例3: World
public World(AABB worldAABB, Vec2 gravity, bool doSleep)
{
this._destructionListener = null;
this._boundaryListener = null;
this._contactFilter = WorldCallback.DefaultFilter;
this._contactListener = null;
this._debugDraw = null;
this._bodyList = null;
this._contactList = null;
this._jointList = null;
this._bodyCount = 0;
this._contactCount = 0;
this._jointCount = 0;
this._warmStarting = true;
this._continuousPhysics = true;
this._allowSleep = doSleep;
this._gravity = gravity;
this._lock = false;
this._inv_dt0 = 0f;
this._contactManager = new ContactManager();
this._contactManager._world = this;
this._broadPhase = new BroadPhase(worldAABB, this._contactManager);
BodyDef def = new BodyDef();
this._groundBody = this.CreateBody(def);
}示例4: DrawSolidCircle
public override void DrawSolidCircle(Vec2 center, float radius, Box2DX.Common.Vec2 axis, Color color)
{
float k_segments = 16.0f;
float k_increment = 2.0f * (float)System.Math.PI / k_segments;
float theta = 0.0f;
GL.Color3(0.5f * color.R, 0.5f * color.G, 0.5f * color.B);
GL.Disable(EnableCap.Texture2D);
GL.Begin(BeginMode.TriangleFan);
for (int i = 0; i < k_segments; ++i) {
Vec2 v = center + radius * new Vec2((float)System.Math.Cos(theta), (float)System.Math.Sin(theta));
GL.Vertex3(v.X, v.Y, ZLayer);
theta += k_increment;
}
GL.End();
theta = 0.0f;
GL.Color4(color.R, color.G, color.B, 1.0f);
GL.Begin(BeginMode.LineLoop);
for (int i = 0; i < k_segments; ++i) {
Vec2 v = center + radius * new Vec2((float)System.Math.Cos(theta), (float)System.Math.Sin(theta));
GL.Vertex3(v.X, v.Y, ZLayer);
theta += k_increment;
}
GL.End();
Vec2 p = center + radius * axis;
GL.Begin(BeginMode.Lines);
GL.Vertex3(center.X, center.Y, ZLayer);
GL.Vertex3(p.X, p.Y, 0);
GL.End();
GL.Enable(EnableCap.Texture2D);
}示例5: Set
public void Set(Vec2 x1, float a1, Vec2 x2, float a2)
{
this.Linear1 = x1;
this.Angular1 = a1;
this.Linear2 = x2;
this.Angular2 = a2;
}示例6: TestSegment
public bool TestSegment(out float lambda, out Vec2 normal, Segment segment, float maxLambda)
{
lambda = 0f;
normal = default(Vec2);
Vec2 p = segment.P1;
Vec2 a = segment.P2 - p;
Vec2 a2 = this.P2 - this.P1;
Vec2 vec = Vec2.Cross(a2, 1f);
float num = 100f * Settings.FLT_EPSILON;
float num2 = -Vec2.Dot(a, vec);
bool result;
if (num2 > num)
{
Vec2 a3 = p - this.P1;
float num3 = Vec2.Dot(a3, vec);
if (0f <= num3 && num3 <= maxLambda * num2)
{
float num4 = -a.X * a3.Y + a.Y * a3.X;
if (-num * num2 <= num4 && num4 <= num2 * (1f + num))
{
num3 /= num2;
vec.Normalize();
lambda = num3;
normal = vec;
result = true;
return result;
}
}
}
result = false;
return result;
}示例7: Step
public override void Step(TimeStep step)
{
if (_bodyList == null) return;
if (useWorldGravity)
{
gravity = _world.Gravity;
}
for (ControllerEdge i = _bodyList; i != null; i = i.nextBody)
{
Body body = i.body;
if (body.IsSleeping())
{
//Buoyancy force is just a function of position,
//so unlike most forces, it is safe to ignore sleeping bodes
continue;
}
Vec2 areac = new Vec2(0, 0);
Vec2 massc = new Vec2(0, 0);
float area = 0;
float mass = 0;
for (Shape shape = body.GetShapeList(); shape != null; shape = shape.GetNext())
{
Vec2 sc;
float sarea = shape.ComputeSubmergedArea(normal, offset, body.GetXForm(), out sc);
area += sarea;
areac.X += sarea * sc.X;
areac.Y += sarea * sc.Y;
float shapeDensity = 0;
if (useDensity)
{
//TODO: Expose density publicly
shapeDensity = shape.Density;
}
else
{
shapeDensity = 1;
}
mass += sarea * shapeDensity;
massc.X += sarea * sc.X * shapeDensity;
massc.Y += sarea * sc.Y * shapeDensity;
}
areac.X /= area;
areac.Y /= area;
massc.X /= mass;
massc.Y /= mass;
if (area < Box2DX.Common.Settings.FLT_EPSILON)
continue;
//Buoyancy
Vec2 buoyancyForce = -density * area * gravity;
body.ApplyForce(buoyancyForce, massc);
//Linear drag
Vec2 dragForce = body.GetLinearVelocityFromWorldPoint(areac) - velocity;
dragForce *= -linearDrag * area;
body.ApplyForce(dragForce, areac);
//Angular drag
//TODO: Something that makes more physical sense?
body.ApplyTorque(-body.GetInertia() / body.GetMass() * area * body.GetAngularVelocity() * angularDrag);
}
}示例8: Initialize
public void Initialize(Body body1, Body body2, Vec2 anchor)
{
this.Body1 = body1;
this.Body2 = body2;
this.LocalAnchor1 = body1.GetLocalPoint(anchor);
this.LocalAnchor2 = body2.GetLocalPoint(anchor);
this.ReferenceAngle = body2.GetAngle() - body1.GetAngle();
}示例9: Initialize
public void Initialize(Body body1, Body body2, Vec2 anchor, Vec2 axis)
{
this.Body1 = body1;
this.Body2 = body2;
this.localAnchor1 = body1.GetLocalPoint(anchor);
this.localAnchor2 = body2.GetLocalPoint(anchor);
this.localAxis1 = body1.GetLocalVector(axis);
}示例10: ReportFixture
public override float ReportFixture(Fixture fixture, Vec2 point, Vec2 normal, float fraction)
{
_fixture = fixture;
_point = point;
_normal = normal;
return fraction;
}示例11: SetTarget
public void SetTarget(Vec2 target)
{
if (this._body2.IsSleeping())
{
this._body2.WakeUp();
}
this._target = target;
}示例12: Initialize
public void Initialize(Body body1, Body body2, Vec2 anchor1, Vec2 anchor2)
{
this.Body1 = body1;
this.Body2 = body2;
this.LocalAnchor1 = body1.GetLocalPoint(anchor1);
this.LocalAnchor2 = body2.GetLocalPoint(anchor2);
this.Length = (anchor2 - anchor1).Length();
}示例13: DrawSegment
public static void DrawSegment(Vec2 p1, Vec2 p2, Color color, params object[] p)
{
Gl.Color3(color.R, color.G, color.B);
Gl.Begin(BeginMode.Lines);
Gl.Vertex2(p1.X, p1.Y);
Gl.Vertex2(p2.X, p2.Y);
Gl.End();
}示例14: Initialize
/// <summary>
/// Initialize the bodies, anchors, axis, and reference angle using the world
/// anchor and world axis.
/// </summary>
/// <param name="body1"></param>
/// <param name="body2"></param>
/// <param name="anchor"></param>
/// <param name="axis"></param>
public void Initialize(Body body1, Body body2, Vec2 anchor, Vec2 axis)
{
Body1 = body1;
Body2 = body2;
LocalAnchor1 = body1.GetLocalPoint(anchor);
LocalAnchor2 = body2.GetLocalPoint(anchor);
LocalAxis1 = body1.GetLocalVector(axis);
ReferenceAngle = body2.GetAngle() - body1.GetAngle();
}示例15: DrawPoint
public static void DrawPoint(Vec2 p, float size, Color color)
{
Gl.glPointSize(size);
Gl.glBegin(Gl.GL_POINTS);
Gl.glColor3f(color.R, color.G, color.B);
Gl.glVertex2f(p.X, p.Y);
Gl.glEnd();
Gl.glPointSize(1.0f);
}