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C# Rot.Set方法代码示例

本文整理汇总了C#中Rot.Set方法的典型用法代码示例。如果您正苦于以下问题:C# Rot.Set方法的具体用法?C# Rot.Set怎么用?C# Rot.Set使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Rot的用法示例。


在下文中一共展示了Rot.Set方法的1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: SolvePositionConstraints

        internal override bool SolvePositionConstraints(ref SolverData data)
        {
            FVector2 cA = data.positions[m_indexA].c;
            float aA = data.positions[m_indexA].a;
            FVector2 cB = data.positions[m_indexB].c;
            float aB = data.positions[m_indexB].a;

            Rot qA = new Rot(aA), qB = new Rot(aB);

            float angularError = 0.0f;
            float positionError;

            bool fixedRotation = (m_invIA + m_invIB == 0.0f);

            // Solve angular limit constraint.
            if (_enableLimit && _limitState != LimitState.Inactive && fixedRotation == false)
            {
                float angle = aB - aA - ReferenceAngle;
                float limitImpulse = 0.0f;

                if (_limitState == LimitState.Equal)
                {
                    // Prevent large angular corrections
                    float C = MathUtils.Clamp(angle - _lowerAngle, -Settings.MaxAngularCorrection, Settings.MaxAngularCorrection);
                    limitImpulse = -m_motorMass * C;
                    angularError = Math.Abs(C);
                }
                else if (_limitState == LimitState.AtLower)
                {
                    float C = angle - _lowerAngle;
                    angularError = -C;

                    // Prevent large angular corrections and allow some slop.
                    C = MathUtils.Clamp(C + Settings.AngularSlop, -Settings.MaxAngularCorrection, 0.0f);
                    limitImpulse = -m_motorMass * C;
                }
                else if (_limitState == LimitState.AtUpper)
                {
                    float C = angle - _upperAngle;
                    angularError = C;

                    // Prevent large angular corrections and allow some slop.
                    C = MathUtils.Clamp(C - Settings.AngularSlop, 0.0f, Settings.MaxAngularCorrection);
                    limitImpulse = -m_motorMass * C;
                }

                aA -= m_invIA * limitImpulse;
                aB += m_invIB * limitImpulse;
            }

            // Solve point-to-point constraint.
            {
                qA.Set(aA);
                qB.Set(aB);
                FVector2 rA = MathUtils.Mul(qA, LocalAnchorA - m_localCenterA);
                FVector2 rB = MathUtils.Mul(qB, LocalAnchorB - m_localCenterB);

                FVector2 C = cB + rB - cA - rA;
                positionError = C.Length();

                float mA = m_invMassA, mB = m_invMassB;
                float iA = m_invIA, iB = m_invIB;

                Mat22 K = new Mat22();
                K.ex.X = mA + mB + iA * rA.Y * rA.Y + iB * rB.Y * rB.Y;
                K.ex.Y = -iA * rA.X * rA.Y - iB * rB.X * rB.Y;
                K.ey.X = K.ex.Y;
                K.ey.Y = mA + mB + iA * rA.X * rA.X + iB * rB.X * rB.X;

                FVector2 impulse = -K.Solve(C);

                cA -= mA * impulse;
                aA -= iA * MathUtils.Cross(rA, impulse);

                cB += mB * impulse;
                aB += iB * MathUtils.Cross(rB, impulse);
            }

            data.positions[m_indexA].c = cA;
            data.positions[m_indexA].a = aA;
            data.positions[m_indexB].c = cB;
            data.positions[m_indexB].a = aB;

            return positionError <= Settings.LinearSlop && angularError <= Settings.AngularSlop;
        }
开发者ID:frotein,项目名称:TinyUniverse,代码行数:85,代码来源:RevoluteJoint.cs


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