public Quaternion TrackDampingRatio(Vector4 targetValueVec, float angularFrequency, float dampingRatio, float deltaTime)
{
if (angularFrequency < MathUtil.Epsilon)
{
VelocityVec = QuaternionUtil.ToVector4(Quaternion.identity);
return(QuaternionUtil.FromVector4(ValueVec));
}
// keep in same hemisphere for shorter track delta
if (Vector4.Dot(ValueVec, targetValueVec) < 0.0f)
{
targetValueVec = -targetValueVec;
}
Vector4 delta = targetValueVec - ValueVec;
float f = 1.0f + 2.0f * deltaTime * dampingRatio * angularFrequency;
float oo = angularFrequency * angularFrequency;
float hoo = deltaTime * oo;
float hhoo = deltaTime * hoo;
float detInv = 1.0f / (f + hhoo);
Vector4 detX = f * ValueVec + deltaTime * VelocityVec + hhoo * targetValueVec;
Vector4 detV = VelocityVec + hoo * delta;
VelocityVec = detV * detInv;
ValueVec = detX * detInv;
if (VelocityVec.magnitude < MathUtil.Epsilon && delta.magnitude < MathUtil.Epsilon)
{
VelocityVec = Vector4.zero;
ValueVec = targetValueVec;
}
return(QuaternionUtil.FromVector4(ValueVec));
}
public Quaternion TrackExponential(Vector4 targetValueVec, float halfLife, float deltaTime)
{
if (halfLife < MathUtil.Epsilon)
{
VelocityVec = Vector4.zero;
ValueVec = targetValueVec;
return(QuaternionUtil.FromVector4(targetValueVec));
}
float angularFrequency = 0.6931472f / halfLife;
float dampingRatio = 1.0f;
return(TrackDampingRatio(targetValueVec, angularFrequency, dampingRatio, deltaTime));
}
public Quaternion TrackHalfLife(Vector4 targetValueVec, float frequencyHz, float halfLife, float deltaTime)
{
if (halfLife < MathUtil.Epsilon)
{
VelocityVec = Vector4.zero;
ValueVec = targetValueVec;
return(QuaternionUtil.FromVector4(targetValueVec));
}
float angularFrequency = frequencyHz * MathUtil.TwoPi;
float dampingRatio = 0.6931472f / (angularFrequency * halfLife);
return(TrackDampingRatio(targetValueVec, angularFrequency, dampingRatio, deltaTime));
}
public void SampleFromField()
{
m_objPosition = transform.position;
m_objRotation = transform.rotation;
if (ReactorField == null)
{
return;
}
var comp = ReactorField.GetComponent <BoingReactorField>();
if (comp == null)
{
#if UNITY_EDITOR
if (!s_warnedComponent)
{
Debug.LogWarning("The assigned ReactorField game object must have a BoingReactorField component for BoingReactorFieldCpuSampler components to sample from.");
s_warnedComponent = true;
}
#endif
return;
}
if (comp.HardwareMode != BoingReactorField.HardwareModeEnum.CPU)
{
#if UNITY_EDITOR
if (!s_warnedHardwareMode)
{
Debug.LogWarning("The BoingReactorField component needs to be set to CPU hardware mode for BoingReactorFieldCpuSampler components to sample from.");
s_warnedHardwareMode = true;
}
#endif
return;
}
Vector3 positionOffset;
Vector4 rotationOffset;
if (!comp.SampleCpuGrid(transform.position, out positionOffset, out rotationOffset))
{
return;
}
transform.position = m_objPosition + positionOffset * PositionSampleMultiplier;
transform.rotation = QuaternionUtil.Pow(QuaternionUtil.FromVector4(rotationOffset), RotationSampleMultiplier) * m_objRotation;
}
public void EndAccumulateTargets(ref Params p)
{
if (m_numEffectors > 0)
{
PositionTarget *= m_scale / m_numEffectors;
PositionTarget += PositionOrigin;
RotationTarget /= m_numEffectors;
RotationTarget = QuaternionUtil.ToVector4(QuaternionUtil.FromVector4(RotationTarget) * QuaternionUtil.FromVector4(RotationOrigin));
}
else
{
PositionTarget = PositionOrigin;
RotationTarget = RotationOrigin;
}
}
public void PullResults(BoingBones bones)
{
for (int iChain = 0; iChain < bones.BoneData.Length; ++iChain)
{
var chain = bones.BoneChains[iChain];
var aBone = bones.BoneData[iChain];
if (aBone == null)
{
continue;
}
// must cache before manipulating bone transforms
// otherwise, we'd cache delta propagated down from parent bones
foreach (var bone in aBone)
{
bone.CachedPositionWs = bone.Transform.position;
bone.CachedPositionLs = bone.Transform.localPosition;
bone.CachedRotationWs = bone.Transform.rotation;
bone.CachedRotationLs = bone.Transform.localRotation;
}
// blend bone position
for (int iBone = 0; iBone < aBone.Length; ++iBone)
{
var bone = aBone[iBone];
// skip fixed root
if (iBone == 0 && !chain.LooseRoot)
{
bone.BlendedPositionWs = bone.CachedPositionWs;
continue;
}
bone.BlendedPositionWs =
Vector3.Lerp
(
bone.Instance.PositionSpring.Value,
bone.CachedPositionWs,
bone.AnimationBlend
);
}
// rotation delta back-propagation
if (bones.EnableRotationEffect)
{
for (int iBone = 0; iBone < aBone.Length; ++iBone)
{
var bone = aBone[iBone];
// skip fixed root
if (iBone == 0 && !chain.LooseRoot)
{
bone.BlendedRotationWs = bone.CachedRotationWs;
continue;
}
if (bone.ChildIndices == null)
{
if (bone.ParentIndex >= 0)
{
var parentBone = aBone[bone.ParentIndex];
bone.BlendedRotationWs = parentBone.BlendedRotationWs * (parentBone.RotationInverseWs * bone.CachedRotationWs);
}
continue;
}
Vector3 bonePos = bone.CachedPositionWs;
Vector3 boneBlendedPos = bone.BlendedPositionWs;
Quaternion boneRot = bone.CachedRotationWs;
Quaternion boneRotInv = Quaternion.Inverse(boneRot);
Vector4 childRotDeltaPsVecAccumulator = Vector3.zero;
float totalWeight = 0.0f;
foreach (int iChild in bone.ChildIndices)
{
var childBone = aBone[iChild];
Vector3 childPos = childBone.CachedPositionWs;
Vector3 childPosDelta = childPos - bonePos;
Vector3 childPosDeltaDir = VectorUtil.NormalizeSafe(childPosDelta, Vector3.zero);
Vector3 childBlendedPos = childBone.BlendedPositionWs;
Vector3 childBlendedPosDelta = childBlendedPos - boneBlendedPos;
Vector3 childBlendedPosDeltaDir = VectorUtil.NormalizeSafe(childBlendedPosDelta, Vector3.zero);
Quaternion childRotDelta = Quaternion.FromToRotation(childPosDeltaDir, childBlendedPosDeltaDir);
Quaternion childRotDeltaPs = boneRotInv * childRotDelta;
Vector4 childRotDeltaPsVec = QuaternionUtil.ToVector4(childRotDeltaPs);
float weight = Mathf.Max(MathUtil.Epsilon, chain.MaxLengthFromRoot - childBone.LengthFromRoot);
childRotDeltaPsVecAccumulator += weight * childRotDeltaPsVec;
totalWeight += weight;
}
if (totalWeight > 0.0f)
{
Vector4 avgChildRotDeltaPsVec = childRotDeltaPsVecAccumulator / totalWeight;
bone.RotationBackPropDeltaPs = QuaternionUtil.FromVector4(avgChildRotDeltaPsVec);
bone.BlendedRotationWs = (boneRot * bone.RotationBackPropDeltaPs) * boneRot;
}
else if (bone.ParentIndex >= 0)
{
var parentBone = aBone[bone.ParentIndex];
bone.BlendedRotationWs = parentBone.BlendedRotationWs * (parentBone.RotationInverseWs * bone.CachedRotationWs);
}
}
}
// write blended position & adjusted rotation into final transforms
for (int iBone = 0; iBone < aBone.Length; ++iBone)
{
var bone = aBone[iBone];
// skip fixed root
if (iBone == 0 && !chain.LooseRoot)
{
bone.Instance.PositionSpring.Reset(bone.CachedPositionWs);
bone.Instance.RotationSpring.Reset(bone.CachedRotationWs);
continue;
}
bone.Transform.position = bone.BlendedPositionWs;
bone.Transform.rotation = bone.BlendedRotationWs;
bone.Transform.localScale = bone.BlendedScaleLs;
}
}
}
public void Execute(ref Params p, float dt)
{
bool useAccumulatedEffectors = (m_numEffectors >= 0);
bool positionSpringNeedsUpdate =
useAccumulatedEffectors
? (PositionSpring.Velocity.sqrMagnitude > MathUtil.Epsilon ||
(PositionSpring.Value - PositionTarget).sqrMagnitude > MathUtil.Epsilon)
: p.Bits.IsBitSet(ReactorFlags.EnablePositionEffect);
bool rotationSpringNeedsUpdate =
useAccumulatedEffectors
? (RotationSpring.VelocityVec.sqrMagnitude > MathUtil.Epsilon ||
(RotationSpring.ValueVec - RotationTarget).sqrMagnitude > MathUtil.Epsilon)
: p.Bits.IsBitSet(ReactorFlags.EnableRotationEffect);
if (m_numEffectors == 0)
{
bool earlyOut = true;
if (positionSpringNeedsUpdate)
{
earlyOut = false;
}
else
{
PositionSpring.Reset(PositionTarget);
}
if (rotationSpringNeedsUpdate)
{
earlyOut = false;
}
else
{
RotationSpring.Reset(QuaternionUtil.FromVector4(RotationTarget));
}
if (earlyOut)
{
return;
}
}
if (m_instantAccumulation != 0)
{
PositionSpring.Value = PositionTarget;
RotationSpring.ValueVec = RotationTarget;
m_instantAccumulation = 0;
}
else
{
if (positionSpringNeedsUpdate)
{
switch (p.PositionParameterMode)
{
case ParameterMode.Exponential:
PositionSpring.TrackExponential(PositionTarget, p.PositionExponentialHalfLife, dt);
break;
case ParameterMode.OscillationByHalfLife:
PositionSpring.TrackHalfLife(PositionTarget, p.PositionOscillationFrequency, p.PositionOscillationHalfLife, dt);
break;
case ParameterMode.OscillationByDampingRatio:
PositionSpring.TrackDampingRatio(PositionTarget, p.PositionOscillationFrequency * MathUtil.TwoPi, p.PositionOscillationDampingRatio, dt);
break;
}
}
if (rotationSpringNeedsUpdate)
{
switch (p.RotationParameterMode)
{
case ParameterMode.Exponential:
RotationSpring.TrackExponential(RotationTarget, p.RotationExponentialHalfLife, dt);
break;
case ParameterMode.OscillationByHalfLife:
RotationSpring.TrackHalfLife(RotationTarget, p.RotationOscillationFrequency, p.RotationOscillationHalfLife, dt);
break;
case ParameterMode.OscillationByDampingRatio:
RotationSpring.TrackDampingRatio(RotationTarget, p.RotationOscillationFrequency * MathUtil.TwoPi, p.RotationOscillationDampingRatio, dt);
break;
}
}
}
if (!useAccumulatedEffectors)
{
if (!positionSpringNeedsUpdate)
{
PositionSpring.Reset(PositionTarget);
}
if (!rotationSpringNeedsUpdate)
{
RotationSpring.Reset(RotationTarget);
}
}
}
public void OnDrawGizmos()
{
if (BoneData == null)
{
return;
}
bool selected = false;
foreach (var selectedGo in UnityEditor.Selection.gameObjects)
{
if (gameObject == selectedGo)
{
selected = true;
break;
}
foreach (var collider in BoingColliders)
{
if (collider == null)
{
continue;
}
if (collider.gameObject == selectedGo)
{
selected = true;
break;
}
}
if (selected)
{
break;
}
}
if (!selected)
{
return;
}
for (int iChain = 0; iChain < BoneData.Length; ++iChain)
{
var chain = BoneChains[iChain];
var aBone = BoneData[iChain];
if (aBone == null)
{
continue;
}
foreach (var bone in aBone)
{
var parentBone =
bone.ParentIndex >= 0
? aBone[bone.ParentIndex]
: null;
Vector3 boneAnimPos = Application.isPlaying ? bone.CachedPositionWs : bone.Transform.position;
Vector3 boneTargetPos = bone.Instance.PositionTarget;
Vector3 boneSpringPos = bone.Instance.PositionSpring.Value;
Vector3 boneBlendedPos = bone.BlendedPositionWs;
Quaternion boneAnimRot = Application.isPlaying ? bone.CachedRotationWs : bone.Transform.rotation;
Quaternion boneTargetRot = QuaternionUtil.FromVector4(bone.Instance.RotationTarget);
Quaternion boneSpringRot = bone.Instance.RotationSpring.ValueQuat;
Quaternion boneBlendedRot = bone.BlendedRotationWs;
float boneRadius =
(chain.EnableBoingKitCollision || chain.EnableUnityCollision || chain.EnableInterChainCollision)
? MinScale * bone.CollisionRadius
: 0.02f;
Gizmos.color = Color.white;
if (DebugDrawRawBones)
{
Gizmos.matrix = Matrix4x4.TRS(boneAnimPos, boneAnimRot, Vector3.one);
Gizmos.DrawWireSphere(Vector3.zero, boneRadius);
Gizmos.matrix = Matrix4x4.identity;
if (parentBone != null)
{
Vector3 parentAnimPos =
Application.isPlaying
? parentBone.CachedPositionWs
: parentBone.Transform.position;
Gizmos.DrawLine(boneAnimPos, parentAnimPos);
}
if (DebugDrawBoneNames)
{
Handles.Label(boneAnimPos, bone.Transform.name);
}
if (DebugDrawLengthFromRoot)
{
float tBone = Mathf.Clamp01(bone.LengthFromRoot * MathUtil.InvSafe(chain.MaxLengthFromRoot));
Handles.Label(boneAnimPos, bone.LengthFromRoot.ToString("n3") + " (t: " + tBone.ToString("n2") + ")");
}
}
Gizmos.color = Color.yellow;
if (DebugDrawBoingBones && Application.isPlaying)
{
Gizmos.matrix = Matrix4x4.TRS(boneSpringPos, boneSpringRot, Vector3.one);
Gizmos.DrawWireSphere(Vector3.zero, boneRadius);
Gizmos.matrix = Matrix4x4.identity;
if (parentBone != null)
{
Vector3 parentSpringPos = parentBone.Instance.PositionSpring.Value;
Gizmos.DrawLine(boneSpringPos, parentSpringPos);
}
if (DebugDrawBoneNames)
{
Handles.Label(boneSpringPos, bone.Transform.name);
}
}
Gizmos.color = Color.red;
if (DebugDrawTargetBones && Application.isPlaying)
{
Gizmos.matrix = Matrix4x4.TRS(boneTargetPos, boneTargetRot, Vector3.one);
Gizmos.DrawWireSphere(Vector3.zero, boneRadius);
Gizmos.matrix = Matrix4x4.identity;
if (parentBone != null)
{
Vector3 parentTargetPos = parentBone.Instance.PositionTarget;
Gizmos.DrawLine(boneTargetPos, parentTargetPos);
}
if (DebugDrawBoneNames)
{
Handles.Label(boneTargetPos, bone.Transform.name);
}
}
Gizmos.color = Color.green;
if (DebugDrawFinalBones && Application.isPlaying)
{
Gizmos.matrix = Matrix4x4.TRS(boneBlendedPos, boneBlendedRot, Vector3.one);
Gizmos.DrawWireSphere(Vector3.zero, boneRadius);
Gizmos.matrix = Matrix4x4.identity;
if (parentBone != null)
{
Vector3 blendedParentBone = Vector3.Lerp(parentBone.Instance.PositionSpring.Value, parentBone.CachedPositionWs, parentBone.AnimationBlend);
Gizmos.DrawLine(boneBlendedPos, blendedParentBone);
}
if (DebugDrawBoneNames)
{
Handles.Label(boneBlendedPos, bone.Transform.name);
}
}
}
Gizmos.color = Color.cyan;
if (DebugDrawChainBounds && (chain.EnableBoingKitCollision || chain.EnableUnityCollision))
{
Gizmos.matrix = Matrix4x4.Translate(chain.Bounds.center);
Gizmos.DrawWireCube(Vector3.zero, chain.Bounds.size);
Gizmos.matrix = Matrix4x4.identity;
}
}
if (DebugDrawColliders)
{
foreach (var collider in BoingColliders)
{
if (collider == null)
{
continue;
}
collider.DrawGizmos();
}
}
}