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brihernandez/FloatingOrigin.cs

Last active August 11, 2025 03:53
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Revisions

  1. brihernandez revised this gist Jan 25, 2022. 1 changed file with 0 additions and 9 deletions.
    9 changes: 0 additions & 9 deletions FloatingOrigin.cs
    View file
    Original file line number Diff line number Diff line change
    @@ -115,12 +115,6 @@ private void MoveParticles(Vector3 offset)
    if (particlesNeeded <= 0)
    continue;

    bool wasPaused = system.isPaused;
    bool wasPlaying = system.isPlaying;

    if (!wasPaused)
    system.Pause();

    // ensure a sufficiently large array in which to store the particles
    if (parts == null || parts.Length < particlesNeeded)
    {
    @@ -136,9 +130,6 @@ private void MoveParticles(Vector3 offset)
    }

    system.SetParticles(parts, num);

    if (wasPlaying)
    system.Play();
    }
    }
    }
  2. brihernandez renamed this gist Jul 24, 2021. 1 changed file with 0 additions and 0 deletions.
    0 FloatingOrigin → FloatingOrigin.cs
    View file
    File renamed without changes.
  3. brihernandez revised this gist Jul 14, 2020. No changes.
  4. brihernandez created this gist Apr 6, 2020.
    144 changes: 144 additions & 0 deletions FloatingOrigin
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,144 @@
    // Based on the Unity Wiki FloatingOrigin script by Peter Stirling
    // URL: http://wiki.unity3d.com/index.php/Floating_Origin

    using UnityEngine;
    using UnityEngine.SceneManagement;

    public class FloatingOrigin : MonoBehaviour
    {
    [Tooltip("Point of reference from which to check the distance to origin.")]
    public Transform ReferenceObject = null;

    [Tooltip("Distance from the origin the reference object must be in order to trigger an origin shift.")]
    public float Threshold = 5000f;

    [Header("Options")]
    [Tooltip("When true, origin shifts are considered only from the horizontal distance to orign.")]
    public bool Use2DDistance = false;

    [Tooltip("When true, updates ALL open scenes. When false, updates only the active scene.")]
    public bool UpdateAllScenes = true;

    [Tooltip("Should ParticleSystems be moved with an origin shift.")]
    public bool UpdateParticles = true;

    [Tooltip("Should TrailRenderers be moved with an origin shift.")]
    public bool UpdateTrailRenderers = true;

    [Tooltip("Should LineRenderers be moved with an origin shift.")]
    public bool UpdateLineRenderers = true;

    private ParticleSystem.Particle[] parts = null;

    void LateUpdate()
    {
    if (ReferenceObject == null)
    return;

    Vector3 referencePosition = ReferenceObject.position;

    if (Use2DDistance)
    referencePosition.y = 0f;

    if (referencePosition.magnitude > Threshold)
    {
    MoveRootTransforms(referencePosition);

    if (UpdateParticles)
    MoveParticles(referencePosition);

    if (UpdateTrailRenderers)
    MoveTrailRenderers(referencePosition);

    if (UpdateLineRenderers)
    MoveLineRenderers(referencePosition);
    }
    }

    private void MoveRootTransforms(Vector3 offset)
    {
    if (UpdateAllScenes)
    {
    for (int z = 0; z < SceneManager.sceneCount; z++)
    {
    foreach (GameObject g in SceneManager.GetSceneAt(z).GetRootGameObjects())
    g.transform.position -= offset;
    }
    }
    else
    {
    foreach (GameObject g in SceneManager.GetActiveScene().GetRootGameObjects())
    g.transform.position -= offset;
    }
    }

    private void MoveTrailRenderers(Vector3 offset)
    {
    var trails = FindObjectsOfType<TrailRenderer>() as TrailRenderer[];
    foreach (var trail in trails)
    {
    Vector3[] positions = new Vector3[trail.positionCount];

    int positionCount = trail.GetPositions(positions);
    for (int i = 0; i < positionCount; ++i)
    positions[i] -= offset;

    trail.SetPositions(positions);
    }
    }

    private void MoveLineRenderers(Vector3 offset)
    {
    var lines = FindObjectsOfType<LineRenderer>() as LineRenderer[];
    foreach (var line in lines)
    {
    Vector3[] positions = new Vector3[line.positionCount];

    int positionCount = line.GetPositions(positions);
    for (int i = 0; i < positionCount; ++i)
    positions[i] -= offset;

    line.SetPositions(positions);
    }
    }

    private void MoveParticles(Vector3 offset)
    {
    var particles = FindObjectsOfType<ParticleSystem>() as ParticleSystem[];
    foreach (ParticleSystem system in particles)
    {
    if (system.main.simulationSpace != ParticleSystemSimulationSpace.World)
    continue;

    int particlesNeeded = system.main.maxParticles;

    if (particlesNeeded <= 0)
    continue;

    bool wasPaused = system.isPaused;
    bool wasPlaying = system.isPlaying;

    if (!wasPaused)
    system.Pause();

    // ensure a sufficiently large array in which to store the particles
    if (parts == null || parts.Length < particlesNeeded)
    {
    parts = new ParticleSystem.Particle[particlesNeeded];
    }

    // now get the particles
    int num = system.GetParticles(parts);

    for (int i = 0; i < num; i++)
    {
    parts[i].position -= offset;
    }

    system.SetParticles(parts, num);

    if (wasPlaying)
    system.Play();
    }
    }
    }