void DisplayCatmullRomSpline(int pos)
    {
        //Clamp to allow looping
        Vector3[] pnt =
        {
            points[ClampListPos(pos - 1)].position,
            points[pos].position,
            points[ClampListPos(pos + 1)].position,
            points[ClampListPos(pos + 2)].position
        };
        //Just assign a tmp value to this
        Vector3 lastPos = Vector3.zero;

        //t is always between 0 and 1 and determines the resolution of the spline
        //0 is always at p1
        for (float t = 0; t < 1; t += 0.1f)
        {
            //Find the coordinates between the control points with a Catmull-Rom spline
            CatmullRomSpline spline = new CatmullRomSpline();
            Vector3          newPos = spline.GetPoint(t, pnt);
            //Cant display anything the first iteration
            if (t == 0)
            {
                lastPos = newPos;
                continue;
            }
            Gizmos.DrawLine(lastPos, newPos);
            lastPos = newPos;
        }
        //Also draw the last line since it is always less than 1, so we will always miss it
        Gizmos.DrawLine(lastPos, pnt[2]);
    }
Exemplo n.º 2
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    // public Vector3 startPoint;
    // public Color color;

    public override void Rebuild()
    {
        Vector3[] points = new Vector3[length];
        Vector3[] line   = new Vector3[detail];

        print(startPoint);
        for (int i = 0; i < points.Length; i++)
        {
            if (i == 0)
            {
                points[i] = startPoint;
            }
            // print(points[i]);
            else
            {
                points[i] = points[i - 1] + Random.insideUnitSphere * strokeLength;
            }
        }

        for (int i = 0; i < line.Length; i++)
        {
            float percent = (float)i / (float)line.Length;
            line[i] = CatmullRomSpline.GetSplinePos(points, percent);
        }

        lineRenderer.positionCount = detail;
        lineRenderer.SetPositions(line);
        lineRenderer.startColor      = color;
        lineRenderer.endColor        = color;
        lineRenderer.widthMultiplier = width;
    }
Exemplo n.º 3
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    public void Create(Vector3 pos, float initSpeed, string name, Texture2D pic)
    {
        trail.Emit = false;
        hud.SetHudNameAndPic(name, pic, this);
        mov             = this.gameObject.GetComponent <CatmullRomMovement>();
        spline          = (CatmullRomSpline)GameObject.Find("Root").GetComponent <CatmullRomSpline>();
        mov.startOffset = spline.GetClosestPointAtSpline(pos);
        mov.speed       = initSpeed;
        mov.DelayedStart();
        trail.Emit = true;


        float hue = Random.Range(0.01f, 0.999f);

        for (int i = 0; i < 5; i++)
        {
            gradientColor[i].color = new HSBColor((hue + (hueStep * i)) % 1f, 1, 1, 1 - (0.25f * i)).ToColor();
            gradientColor[i].time  = i * 0.25f;

            gradientAlpha[i].alpha = 1 - (0.25f * i);
            gradientAlpha[i].time  = i * 0.25f;
        }

        gradient.SetKeys(gradientColor, gradientAlpha);

        trail.TrailData.ColorOverLife = gradient;
    }
Exemplo n.º 4
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    public override void Rebuild(Vector3[] positions, Color[] colors)
    {
        Vector3[] line = new Vector3[detail];

        for (int i = 0; i < line.Length; i++)
        {
            float percent = (float)i / (float)line.Length;
            line[i] = CatmullRomSpline.GetSplinePos(positions, percent);
        }

        lineRenderer.positionCount = detail;
        lineRenderer.SetPositions(line);
        Gradient g = new Gradient();

        GradientColorKey[] keys = new GradientColorKey[colors.Length];
        for (int i = 0; i < colors.Length; i++)
        {
            GradientColorKey k = new GradientColorKey();
            k.color = colors[i];
            k.time  = (float)i / (float)colors.Length;
            keys[i] = k;
            // print(keys[i].color);
        }
        g.colorKeys = keys;
        lineRenderer.colorGradient = g;
        // lineRenderer.startColor = color;
        // lineRenderer.endColor = color;
        lineRenderer.widthMultiplier = scale;
    }
Exemplo n.º 5
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    void Start()
    {
        fragments = new GameObject[fragmentNum];

        Vector3 position = Vector3.zero;

        for (int i = 0; i < fragmentNum; i++) {
            fragments[i] = (GameObject) Instantiate(fragmentPrefab, position, Quaternion.identity);
            fragments[i].transform.parent = transform;

            SpringJoint joint = fragments[i].GetComponent<SpringJoint>();
            if (i > 0) {
                joint.connectedBody = fragments[i - 1].rigidbody;
            }

            position += interval;
        }

        LineRenderer renderer = GetComponent<LineRenderer>();
        renderer.SetVertexCount((fragmentNum - 1) * splineFactor + 1);

        xPositions = new float[fragmentNum];
        yPositions = new float[fragmentNum];
        zPositions = new float[fragmentNum];

        splineX = new CatmullRomSpline(xPositions);
        splineY = new CatmullRomSpline(yPositions);
        splineZ = new CatmullRomSpline(zPositions);
    }
Exemplo n.º 6
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    //float EaseOutQuad (float t) { return (--t) * t * t + 1; }

    private void LateUpdate()
    {
        InitializeIfNeeded();
        ControlsToScales();

        // GetParticles is allocation free because we reuse the m_Particles buffer between updates
        int numParticlesAlive = m_System.GetParticles(m_Particles);

        // Change only the particles that are alive
        for (int i = 0; i < numParticlesAlive; i++)
        {
            float id = (float)m_Particles [i].randomSeed * .00001f;

            int   index = (int)(m_Particles [i].randomSeed % numParticlesAlive);
            float s     = Mathf.Min(1, ((m_Particles [i].startLifetime - m_Particles [i].remainingLifetime) / m_Particles [i].startLifetime));         // * lerpToTarget.w);
            //s = EasingFunction.EaseOutCubic (0,1,s);
            Vector3 offset = GetNoisePosition(id) * CatmullRomSpline.GetSplinePos(scales, s).magnitude;

            float timeLerp = map(s, lerpToTarget.x, lerpToTarget.y, 0, 1);
            m_Particles [i].position =
                Vector3.Lerp(
                    (CatmullRomSpline.GetSplinePos(pos, s) + offset),
                    endTarget.localToWorldMatrix.MultiplyPoint(endTargetPos[i]),
                    Mathf.SmoothStep(0, 1, timeLerp * lerpToTarget.z)
                    );
            m_Particles [i].position  += GetNoisePosition(noiseData.w + (m_Particles [i].position.x * noiseData.x) + Time.time * noiseData.y) * noiseData.z;
            m_Particles [i].startColor = Color.Lerp(m_Particles [i].startColor, lerpToColor, timeLerp * amountToLerpColor);
            m_Particles [i].startSize  = map(particleSize[i], 0, 1, particleSizeMinMax.x, particleSizeMinMax.y);
        }

        // Apply the particle changes to the particle system
        m_System.SetParticles(m_Particles, numParticlesAlive);
    }
    private void DrawSplineInspector(MeshCreator meshCreator, List <Vector2> points, bool isClosed)
    {
        meshCreator.splineResolution     = EditorGUILayout.Slider("Resolution", meshCreator.splineResolution, CatmullRomSpline.MIN_RESOLUTION, 0.25f);
        meshCreator.splineSimplification = (SplineSimplification.Type)EditorGUILayout.EnumPopup("Simplify spline", meshCreator.splineSimplification);
        if (meshCreator.splineSimplification == SplineSimplification.Type.None)
        {
            return;
        }

        float area = CatmullRomSpline.BoundingBoxArea(points);

        if (meshCreator.splineSimplification == SplineSimplification.Type.ByRelativeBoundingBoxArea)
        {
            meshCreator.minRelativeSplineArea = EditorGUILayout.Slider("Minimal shape area percentage", meshCreator.minRelativeSplineArea, 0, 1, null);
            meshCreator.minAbsoluteSplineArea = meshCreator.minRelativeSplineArea * area;
            EditorGUI.BeginDisabledGroup(true);
            meshCreator.minAbsoluteSplineArea = EditorGUILayout.Slider("Minimal absolute area", meshCreator.minAbsoluteSplineArea, 0, area, null);
            EditorGUI.EndDisabledGroup();
        }
        else
        {
            meshCreator.minAbsoluteSplineArea = EditorGUILayout.Slider("Minimal absolute area", meshCreator.minAbsoluteSplineArea, 0, area, null);
            meshCreator.minRelativeSplineArea = Mathf.Clamp01(meshCreator.minAbsoluteSplineArea / area);
            EditorGUI.BeginDisabledGroup(true);
            meshCreator.minRelativeSplineArea = EditorGUILayout.Slider("Minimal shape area percentage", meshCreator.minRelativeSplineArea, 0, 1, null);
            EditorGUI.EndDisabledGroup();
        }
        var simplifiedPoints = GetSimplifiedSplinePoints(meshCreator, points, isClosed);

        if (points.Count != simplifiedPoints.Count)
        {
            EditorGUILayout.HelpBox("Point count: " + simplifiedPoints.Count + "/" + points.Count, MessageType.Info);
        }
    }
Exemplo n.º 8
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    void Start()
    {
        fragments = new GameObject[fragmentNum];

        Vector3 position = Vector3.zero;

        for (int i = 0; i < fragmentNum; i++)
        {
            fragments[i] = Instantiate(fragmentPrefab, position, Quaternion.identity);
            fragments[i].transform.SetParent(transform);

            var joint = fragments[i].GetComponent <SpringJoint>();
            if (i > 0)
            {
                joint.connectedBody = fragments[i - 1].GetComponent <Rigidbody>();
            }

            position += interval;
        }

        var renderer = GetComponent <LineRenderer>();

        renderer.positionCount = (fragmentNum - 1) * splineFactor + 1;

        xPositions = new float[fragmentNum];
        yPositions = new float[fragmentNum];
        zPositions = new float[fragmentNum];

        splineX = new CatmullRomSpline(xPositions);
        splineY = new CatmullRomSpline(yPositions);
        splineZ = new CatmullRomSpline(zPositions);
    }
Exemplo n.º 9
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 Vector3 BezierSurface(float u, float v)
 {
     return(Vector3.Lerp(
                CatmullRomSpline.GetSplinePos(LineA, u),
                CatmullRomSpline.GetSplinePos(LineB, u),
                v));
 }
Exemplo n.º 10
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        public void Invalidate()
        {
            if (shape == null || Points == null || Points.Length < 2)
            {
                return;
            }
            CatmullRomSpline spline = new CatmullRomSpline(Points);
            var step     = 1.0f / 1000.0f;
            var previous = new Vector3(Single.PositiveInfinity, Single.PositiveInfinity, Single.PositiveInfinity);

            for (int i = 0; i <= 1000; i++)
            {
                var position = spline.Evaluate(i * step);
                var d        = Vector3.Distance(position, previous);
                if (d > Step)
                {
                    pointList.Add(position);
                    previous = position;
                }
            }

            if (pointList.Count < 1)
            {
                return;
            }
            shape.SetPoints(pointList.ToArray());
            pointList.Clear();
        }
Exemplo n.º 11
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    public void Init()
    {
        if (lineCursor == null)
        {
            Debug.Log("GameObject is not assigned!");
            Application.Quit();
        }

        // setups the script to track input cursor in 3D space
        cursorTransform = lineCursor.transform;

        //Get MeshRenderer and set to color of the cursor
        MeshRenderer mr = GetComponent <MeshRenderer>();

        //Create a new mesh builder:
        meshBuilder = new MeshBuilder();

        // IMPORTANT: instantiates new object for mesh
        go     = Instantiate(meshObject, new Vector3(0, 0, 0), Quaternion.identity) as GameObject;
        go.tag = "Trail";

        if (scene != null)
        {
            go.transform.parent = scene.transform;
        }

        //Look for a MeshFilter component attached to this GameObject:
        filter = go.GetComponent <MeshFilter>();

        //Look for a MeshCollider component attached to this GameObject:
        meshCollider = go.GetComponent <MeshCollider>();

        // creates the spline
        spline = new CatmullRomSpline();

        // add knots via position
        List <Knot> knots = spline.knots;
        Vector3     point = cursorTransform.position;

        // initiate normals at the starting knot
        knotBinormals = new List <Vector3>();
        knotLengths   = new List <float>();

        for (int i = 0; i < 3; ++i)
        {
            addCursorTransform();
        }

        knots.Add(new Knot(point));
        knots.Add(new Knot(point));
        knots.Add(new Knot(point));
        knots.Add(new Knot(point));
        knots.Add(new Knot(point));

        startKnot = 0;

        //Build the mesh:
        StartTracking();
    }
Exemplo n.º 12
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        public void SplineGeneratesAllPoints()
        {
            var spline   = new CatmullRomSpline(new[] { new Vector2(0, 0), new Vector2(0, 10), new Vector2(10, 10), new Vector2(10, 0) });
            var expected = new[] { new Vector2(0.64f, 10.45f), new Vector2(1.52f, 10.8f), new Vector2(2.58f, 11.05f), new Vector2(3.76f, 11.2f), new Vector2(5, 11.25f), new Vector2(6.239999f, 11.2f), new Vector2(7.420001f, 11.05f), new Vector2(8.480001f, 10.8f), new Vector2(9.360002f, 10.45f) };
            var points   = spline.InterpolatePoints(10);

            Assert.Equal(expected, points, new VectorEqualityComparer());
        }
Exemplo n.º 13
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    public override void OnInspectorGUI()
    {
        Color baseCol = GUI.color;

        spline = (CatmullRomSpline)target;
        CheckRotations();

        EditorGUI.BeginChangeCheck();
        {
            EditorGUILayout.Space();
            Blue_BoldLable("Spline 基本设定");
            SplineBasicSettings();
            EditorGUILayout.Space();

            ParentingSplineUI();
            AddCatmullRomSegment();

            EditorGUILayout.Space();

            if (Button("Export as mesh"))
            {
                string path = EditorUtility.SaveFilePanelInProject("Save river mesh", "", "asset", "Save river mesh");


                if (path.Length != 0 && spline.meshfilter.sharedMesh != null)
                {
                    AssetDatabase.CreateAsset(spline.meshfilter.sharedMesh, path);

                    AssetDatabase.Refresh();
                    spline.GenerateSpline();
                }
            }
        }

        if (EditorGUI.EndChangeCheck())
        {
            Undo.RecordObject(spline, "Spline changed");
            spline.GenerateSpline();
        }

        EditorGUILayout.Space();

        if (spline.beginningSpline)
        {
            if (!spline.beginningSpline.endingChildSplines.Contains(spline))
            {
                spline.beginningSpline.endingChildSplines.Add(spline);
            }
        }

        if (spline.endingSpline)
        {
            if (!spline.endingSpline.beginnigChildSplines.Contains(spline))
            {
                spline.endingSpline.beginnigChildSplines.Add(spline);
            }
        }
    }
Exemplo n.º 14
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    public void InitNURBS(CatmullRomSpline spline, float trackLength, Vector3 dir)
    {
        this.spline      = spline;
        this.trackLength = trackLength;
        filter           = GetComponent <MeshFilter>();

        CreateMeshTrail(dir, 0, Vector3.one);
        BuildMesh();
    }
Exemplo n.º 15
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    void Start()
    {
        _tr      = transform;
        _tCamera = 0f;
        _curve   = gameObject.GetComponent <CatmullRomSpline>();

        _cubeActor    = GameObject.Find("Cube").GetComponent <CubeActor>();
        _capsuleActor = GameObject.Find("Capsule").GetComponent <CapsuleActor>();
    }
Exemplo n.º 16
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 // Update is called once per frame
 void Update()
 {
     if (speed != 0)
     {
         t += Time.deltaTime * speed;
     }
     this.transform.position = CatmullRomSpline.GetSplinePos(pos, Mathf.Clamp(t % 1, 0, 1));
     this.transform.LookAt(CatmullRomSpline.GetSplinePos(pos, Mathf.Clamp((t - .001f) % 1, 0, 1)));
     prev = this.transform.position;
 }
Exemplo n.º 17
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    public static void Test()
    {
        float[] values = { 0f, 1f, 2f, 3f, 4f };

        var interpolation = new CatmullRomSpline(values);
        Debug.Log(interpolation.GetValue(-1f));
        Debug.Log(interpolation.GetValue(3.5f));
        Debug.Log(interpolation.GetValue(4f));
        Debug.Log(interpolation.GetValue(5f));
    }
Exemplo n.º 18
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 void OnDrawGizmos()
 {
     // Draw a yellow sphere at the transform's position
     Gizmos.color = Color.yellow;
     for (int i = 0; i < 29; i++)
     {
         Gizmos.DrawLine(CatmullRomSpline.GetSplinePos(pos, (float)i / 30),
                         CatmullRomSpline.GetSplinePos(pos, ((float)i + 1) / 30));
     }
 }
Exemplo n.º 19
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    void Start()
    {
        GameController.HereFromDel += SetIsHereFromSimulation;
        controller     = GetComponent <GameController>().controller;
        spline         = GetComponent <GameController>().spline;
        gameController = GetComponent <GameController>();


        stateOutput = GetComponent <GameController>().stateOutput;
    }
Exemplo n.º 20
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    public static void Test()
    {
        float[] values = { 0f, 1f, 2f, 3f, 4f };

        var interpolation = new CatmullRomSpline(values);

        Debug.Log(interpolation.GetValue(-1f));
        Debug.Log(interpolation.GetValue(3.5f));
        Debug.Log(interpolation.GetValue(4f));
        Debug.Log(interpolation.GetValue(5f));
    }
    // Use this for initialization
    void Start()
    {
        Mesh mesh = new Mesh();

        CatmullRomSpline spline = new CatmullRomSpline();

        Vector3[]    pos = new Vector3[points.Count];
        Quaternion[] rot = new Quaternion[points.Count];

        for (int i = 0; i < points.Count; i++)
        {
            pos[i] = points[i].transform.position;
            rot[i] = points[i].transform.rotation;
        }

        Vector3 tangent;

        for (int i = 0; i < points.Count; i++)
        {
            tangent = Vector3.Cross(spline.GetTangent(i, pos), Vector3.forward);

            if (tangent.magnitude == 0)
            {
                tangent = Vector3.Cross(spline.GetTangent(i, pos), Vector3.up);
            }
            points[i].transform.rotation = Quaternion.Euler(tangent);
        }

        OrientedPoint[] oPoints = new OrientedPoint[(int)(1 / resolution)];
        for (float i = 0f; i < 1.0f; i += resolution)
        {
            if (i != 0f || i != 1f)
            {
                oPoints[(int)i * 10].position = spline.GetPoint(i, pos);
                tangent = Vector3.Cross(spline.GetTangent(i, pos), Vector3.forward);

                if (tangent.magnitude == 0)
                {
                    tangent = Vector3.Cross(spline.GetTangent(i, pos), Vector3.up);
                }
                oPoints[(int)i * 10].rotation = Quaternion.Euler(tangent);
            }
        }

        Vector2[] verts   = { new Vector2(0, 0), new Vector2(1, 0) };
        Vector2[] normals = { new Vector2(0, 1), new Vector2(0, 1) };
        int[]     lines   = { 0, 1 };

        Shape shape = new Shape(verts, normals, lines);

        Extrude extrusao = new Extrude(ref mesh, shape, oPoints);

        this.GetComponent <MeshFilter>().sharedMesh = mesh;
    }
Exemplo n.º 22
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 void Start()
 {
     spline          = (CatmullRomSpline)GameObject.Find("Root").GetComponent <CatmullRomSpline>();
     myTransform     = transform;
     splineTimeLimit = spline.TimeLimit;
     _t = startOffset;
     if (!shouldntStartAuto)
     {
         StartCoroutine("ComputeOffset");
         StartCoroutine("LerpOffset");
         StartCoroutine("Movement");
     }
 }
Exemplo n.º 23
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    void Start()
    {
        thisGameObject     = gameObject;
        myTransform        = transform;
        rootGo             = GameObject.Find("Root");
        myTransform.parent = rootGo.transform;
        root = (CatmullRomSpline)rootGo.GetComponent <CatmullRomSpline>();

        if (shouldAddOnStart)
        {
            AddNodeToSpline();
        }
    }
Exemplo n.º 24
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    void Start()
    {
        // Events
        GameController.HereFromDel += SetIsHereFromSimulation;

        // Catmull-Rom spline. It draws trajectories between positions
        spline = GetComponent <GameController>().spline;

        // Controllers
        controller          = GetComponent <GameController>().controller;
        gameController      = GetComponent <GameController>();
        stateMessageControl = GetComponent <StateMessageControl>();
    }
Exemplo n.º 25
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 private void DrawCurve(List <Vector2> controlPoints, int steps, int t)
 {
     if (controlPoints.Count >= 2)
     {
         List <Vector2> points        = CatmullRomSpline.GenerateSpline(controlPoints, steps, t);
         Vector3        previousPoint = points[0];
         for (int i = 1; i < points.Count; i++)
         {
             Gizmos.DrawLine(previousPoint, points[i]);
             previousPoint = points[i];
         }
     }
 }
Exemplo n.º 26
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        private void Init()
        {
            if (spline == null)
            {
                spline = new CatmullRomSpline();
            }

            origin = Vector3.zero;    //transform.position;

            mesh = GetComponent <MeshFilter>().mesh;

#if UNITY_4_0
            mesh.MarkDynamic();
#endif

            allocatedNbQuad       = advancedParameters.baseNbQuad;
            maxInstanciedTriCount = 0;
            lastStartingQuad      = 0;
            quadOffset            = 0;


            vertices  = new Vector3[advancedParameters.baseNbQuad * NbVertexPerQuad];
            triangles = new int[advancedParameters.baseNbQuad * NbTriIndexPerQuad];
            uv        = new Vector2[advancedParameters.baseNbQuad * NbVertexPerQuad];
            uv2       = new Vector2[advancedParameters.baseNbQuad * NbVertexPerQuad];
            colors    = new Color[advancedParameters.baseNbQuad * NbVertexPerQuad];
            normals   = new Vector3[advancedParameters.baseNbQuad * NbVertexPerQuad];

            Vector3 n = normal;
            if (n == Vector3.zero)
            {
                n = (transform.position - Camera.main.transform.position).normalized;
            }

            for (int i = 0; i < normals.Length; i++)
            {
                normals[i] = n;
            }

            //spline.knots.Clear();
            spline.Clear();

            List <Knot> knots = spline.knots;
            Vector3     point = transform.position;

            knots.Add(new Knot(point));
            knots.Add(new Knot(point));
            knots.Add(new Knot(point));
            knots.Add(new Knot(point));
            knots.Add(new Knot(point));
        }
Exemplo n.º 27
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    IEnumerator positionCheck()
    {
        while (true)
        {
            cachedPos = myTransform.position;
            yield return(new WaitForSeconds(0.1f));            //Update interval set to 0.1 sec.

            if (cachedPos != myTransform.position)
            {
                root = rootGo.GetComponent <CatmullRomSpline>();
                root.AddNode(thisGameObject);
            }
        }
    }
Exemplo n.º 28
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    void CountSplines()
    {
        var lineRenderer = GetComponent <LineRenderer>();

        lineRenderer.positionCount = (fragmentCount - 1) * splineFactor + 1;

        xPositions = new float[fragmentCount];
        yPositions = new float[fragmentCount];
        zPositions = new float[fragmentCount];

        splineX = new CatmullRomSpline(xPositions);
        splineY = new CatmullRomSpline(yPositions);
        splineZ = new CatmullRomSpline(zPositions);
    }
Exemplo n.º 29
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 void Update()
 {
     for (int i = 0; i < detail; i++)
     {
         if (tube.vertices != null)
         {
             if (tube.vertices[i] != null)
             {
                 tube.vertices[i].point  = CatmullRomSpline.GetSplinePos(tubePoints, (float)i / detail);
                 tube.vertices[i].radius = width;
             }
         }
     }
 }
Exemplo n.º 30
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 void Awake()
 {
     profileCurve = null;
     CalculateTargetArraySize();
     myTransform      = transform;
     triangles        = new List <int>();
     stacksOfVertexes = new List <Vertex>();
     col        = GetComponent <MeshCollider>();
     meshFilter = GetComponent <MeshFilter>();
     root       = GameObject.Find("Root");
     spline     = (CatmullRomSpline)GameObject.Find("Root").GetComponent <CatmullRomSpline>();
     cam        = GameObject.Find("Main Camera");
     camTrans   = cam.transform;
 }
Exemplo n.º 31
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    private void GenerateRiverBed(float[,] heightMap)
    {
        int resolution = heightMap.GetLength(0);
        // River width
        int riverWidth       = (int)(resolution * riverWidthPercent) - 2;
        int maxRiverVariance = (int)(riverWidth * 0.17f);
        // Shore
        int shoreWidth       = (int)(resolution * 0.1f);
        int maxShoreVariance = (int)(shoreWidth * 0.15f);
        // River indices
        int startOfRiver = (resolution - riverWidth) / 2;
        int endOfRiver   = (resolution + riverWidth) / 2;
        // Generate control points
        List <Vector2> mainControlPoints  = GenerateControlPoints(resolution, maxRiverVariance, 2);
        List <Vector2> leftControlPoints  = AdjustControlPoints(mainControlPoints, startOfRiver);
        List <Vector2> rightControlPoints = AdjustControlPoints(mainControlPoints, endOfRiver);
        // Spline Curves
        List <Vector2> leftSplineCurve  = CatmullRomSpline.GenerateSpline(leftControlPoints);
        List <Vector2> rightSplineCurve = CatmullRomSpline.GenerateSpline(rightControlPoints);
        // Interpolate rest of curve
        var leftRiver  = ConnectRiverBends(leftSplineCurve);
        var rightRiver = ConnectRiverBends(rightSplineCurve);

        // Set left boundary
        foreach (Vector2Int leftBoundary in leftRiver)
        {
            heightMap[leftBoundary.x, leftBoundary.y] = riverDepth;
        }
        // Color left half of river, starting from center
        for (int y = 0; y < resolution; y++)
        {
            for (int i = resolution / 2; heightMap[i, y] != riverDepth; i--)
            {
                heightMap[i, y] = riverDepth;
            }
        }
        // Set right boundary
        foreach (Vector2Int rightBoundary in rightRiver)
        {
            heightMap[rightBoundary.x, rightBoundary.y] = riverDepth;
        }
        // Color until we hit right boundary, start from center
        for (int y = 0; y < resolution; y++)
        {
            for (int i = resolution / 2 + 1; heightMap[i, y] != riverDepth; i++)
            {
                heightMap[i, y] = riverDepth;
            }
        }
    }
Exemplo n.º 32
0
        private void Update(float updatePeriod)
        {
            //timeSec += e.Time;
            //var seconds = (float)timeSec;
            var seconds       = (float)timeSource.Elapsed.TotalSeconds;
            var activeSegment = CatmullRomSpline.FindSegment(seconds, wayPoints.Count);
            var pos           = CatmullRomSpline.EvaluateSegment(wayPoints[activeSegment.Item1]
                                                                 , wayPoints[activeSegment.Item2]
                                                                 , wayTangents[activeSegment.Item1]
                                                                 , wayTangents[activeSegment.Item2]
                                                                 , seconds - (float)Math.Floor(seconds));

            bird.CenterX = pos.X;
            bird.CenterY = pos.Y;
        }
Exemplo n.º 33
0
    private void Init()
    {
        if (spline == null) {
            spline = new CatmullRomSpline ();
            spline.NbSubSegmentPerSegment = SubSegmentPerSegmentNumber;
        }

        origin = Vector3.zero;//transform.position;

        mesh = GetComponent<MeshFilter> ().mesh;

        #if UNITY_4_0
        mesh.MarkDynamic();
        #endif

        allocatedNbQuad = advancedParameters.baseNbQuad;
        maxInstanciedTriCount = 0;
        lastStartingQuad = 0;
        quadOffset = 0;

        vertices = new Vector3[advancedParameters.baseNbQuad * NbVertexPerQuad];
        triangles = new int[advancedParameters.baseNbQuad * NbTriIndexPerQuad];
        uv = new Vector2[advancedParameters.baseNbQuad * NbVertexPerQuad];
        uv2 = new Vector2[advancedParameters.baseNbQuad * NbVertexPerQuad];
        colors = new Color[advancedParameters.baseNbQuad * NbVertexPerQuad];
        normals = new Vector3[advancedParameters.baseNbQuad * NbVertexPerQuad];

        Vector3 n = normal;
        if (n == Vector3.zero) {
            n = (transform.position - Camera.main.transform.position).normalized;
        }

        for (int i=0; i<normals.Length; i++) {
            normals [i] = n;
        }

        //spline.knots.Clear();
        spline.Clear ();

        List<Knot> knots = spline.knots;
        Vector3 point = transform.position;

        spline.AddKnot (point);
        spline.AddKnot (point);
        spline.AddKnot (point);
        spline.AddKnot (point);
        spline.AddKnot (point);

        //		knots.Add (new Knot (point));
        //		knots.Add (new Knot (point));
        //		knots.Add (new Knot (point));
        //		knots.Add (new Knot (point));
        //		knots.Add (new Knot (point));
    }
 /// <summary>
 /// Setup constructor. Sets the base spline and an offset from it
 /// </summary>
 /// <param name="baseSpline"> Base CM spline </param>
 /// <param name="offset"> Offset from base spline </param>
 public OffsetCatmullRomSpline( CatmullRomSpline baseSpline, float offset )
 {
     m_BaseSpline	= baseSpline;
     m_Offset		= offset;
     m_BaseSpline.OnChangedEvent += OnBaseSplineChanged;
 }
        private static void MakeEvaluator( ref CatmullRomSpline.Evaluator eval, float t, ControlledSpline baseSpline, float offset )
        {
            eval.Points	= new Point3[ 4 ];
            eval.CpIndex = ( int )t;
            eval.LocalT	= t - eval.CpIndex;

            SplineControlPoints controlPoints = baseSpline.ControlPoints;
            if ( eval.CpIndex == 0 )
            {
                eval.Points[ 0 ] = controlPoints[ 0 ].Position + controlPoints[ 0 ].Frame.Binormal * offset;
            }
            else
            {
                eval.Points[ 0 ] = controlPoints[ eval.CpIndex - 1 ].Position + controlPoints[ eval.CpIndex - 1 ].Frame.Binormal * offset;
            }

            Vector3 point1Offset = controlPoints[ eval.CpIndex ].Frame.Binormal * offset;
            eval.Points[ 1 ] = controlPoints[ eval.CpIndex ].Position + point1Offset;

            Vector3 point2Offset;
            int lastCp = controlPoints.Count - 1;
            if ( eval.CpIndex >= lastCp )
            {
                point2Offset		= point1Offset;
                eval.Points[ 2 ]	= controlPoints[ lastCp ].Position + point2Offset;
            }
            else
            {
                point2Offset		= controlPoints[ eval.CpIndex + 1 ].Frame.Binormal * offset;
                eval.Points[ 2 ]	= controlPoints[ eval.CpIndex + 1 ].Position + point2Offset;
            }

            if ( ( eval.CpIndex + 1 ) >= lastCp )
            {
                eval.Points[ 3 ] = controlPoints[ lastCp ].Position + point2Offset;
            }
            else
            {
                eval.Points[ 3 ] = controlPoints[ eval.CpIndex + 2 ].Position + controlPoints[ eval.CpIndex + 2 ].Frame.Binormal * offset;
            }
        }