static void DrawSplineGizmo(BezierSplineAdvanced spline, GizmoType gizmoType)
{
if (spline.Count < 2)
{
return;
}
Gizmos.color = SPLINE_GIZMO_COLOR;
Vector3 lastPos = spline[0].position;
float increaseAmount = 1f / (spline.Count * SPLINE_GIZMO_SMOOTHNESS);
for (float i = increaseAmount; i < 1f; i += increaseAmount)
{
Vector3 pos = spline.GetPoint(i);
Gizmos.DrawLine(lastPos, pos);
lastPos = pos;
}
Gizmos.DrawLine(lastPos, spline.GetPoint(1f));
}
private void Update()
{
cachedTransform.position = Vector3.Lerp(cachedTransform.position, spline.GetPoint(progress), movementLerpModifier * Time.deltaTime);
if (lookForward)
{
Quaternion targetRotation;
if (isGoingForward)
{
targetRotation = Quaternion.LookRotation(spline.GetTangent(progress));
}
else
{
targetRotation = Quaternion.LookRotation(-spline.GetTangent(progress));
}
cachedTransform.rotation = Quaternion.Lerp(cachedTransform.rotation, targetRotation, rotationLerpModifier * Time.deltaTime);
}
if (isGoingForward)
{
progress += Time.deltaTime / travelTime;
if (progress > 1f)
{
if (!onPathCompletedCalledAt1)
{
onPathCompleted.Invoke();
onPathCompletedCalledAt1 = true;
}
if (travelMode == TravelMode.Once)
{
progress = 1f;
}
else if (travelMode == TravelMode.Loop)
{
progress -= 1f;
}
else
{
progress = 2f - progress;
isGoingForward = false;
}
}
else
{
onPathCompletedCalledAt1 = false;
}
}
else
{
progress -= Time.deltaTime / travelTime;
if (progress < 0f)
{
if (!onPathCompletedCalledAt0)
{
onPathCompleted.Invoke();
onPathCompletedCalledAt0 = true;
}
if (travelMode == TravelMode.Once)
{
progress = 0f;
}
else if (travelMode == TravelMode.Loop)
{
progress += 1f;
}
else
{
progress = -progress;
isGoingForward = true;
}
}
else
{
onPathCompletedCalledAt0 = false;
}
}
}
private void LateUpdate()
{
if (spline == null || cachedPS == null)
{
return;
}
if (particles.Length < cachedMainModule.maxParticles && particles.Length < MAX_PARTICLE_COUNT)
{
particles = new ParticleSystem.Particle[Mathf.Min(cachedMainModule.maxParticles, MAX_PARTICLE_COUNT)];
}
bool isLocalSpace = cachedMainModule.simulationSpace != ParticleSystemSimulationSpace.World;
int aliveParticles = cachedPS.GetParticles(particles);
if (followMode == FollowMode.Relaxed)
{
if (particleData == null)
{
particleData = new List <Vector4>(particles.Length);
}
cachedPS.GetCustomParticleData(particleData, ParticleSystemCustomData.Custom1);
// Credit: https://forum.unity3d.com/threads/access-to-the-particle-system-lifecycle-events.328918/#post-2295977
for (int i = 0; i < aliveParticles; i++)
{
Vector4 particleDat = particleData[i];
Vector3 point = spline.GetPoint(1f - (particles[i].remainingLifetime / particles[i].startLifetime));
if (isLocalSpace)
{
point = cachedTransform.InverseTransformPoint(point);
}
// Move particles alongside the spline
if (particleDat.w != 0f)
{
particles[i].position += point - (Vector3)particleDat;
}
particleDat = point;
particleDat.w = 1f;
particleData[i] = particleDat;
}
cachedPS.SetCustomParticleData(particleData, ParticleSystemCustomData.Custom1);
}
else
{
Vector3 deltaPosition = cachedTransform.position - spline.GetPoint(0f);
for (int i = 0; i < aliveParticles; i++)
{
Vector3 point = spline.GetPoint(1f - (particles[i].remainingLifetime / particles[i].startLifetime)) + deltaPosition;
if (isLocalSpace)
{
point = cachedTransform.InverseTransformPoint(point);
}
particles[i].position = point;
}
}
cachedPS.SetParticles(particles, aliveParticles);
}
