public static RandomWalk3D createWalk(int numPts, int maxAcutePercent, int maxClusterSize, float percAreNodes = 1.0f)
{
int redraws = 0;
RandomWalk3D line = new RandomWalk3D();
if (maxAcutePercent < 0)
{
maxAcutePercent = 100;
}
if (maxClusterSize < 0)
{
maxClusterSize = numPts;
}
Vector3 last = Vector3.zero;
Vector3 randPt;
int maxAcute = (numPts * maxAcutePercent) / 100;
int numAcuteX, numAcuteY, numAcuteZ;
int consecAcuteX, consecAcuteY, consecAcuteZ;
bool foundCluster = true;
bool isAcute = true;
//Random rand;
//long seed = 45;
while (foundCluster || isAcute)
{
last = Vector3.zero;
foundCluster = false;
isAcute = false;
numAcuteX = 0;
numAcuteY = 0;
numAcuteZ = 0;
consecAcuteX = 0;
consecAcuteY = 0;
consecAcuteZ = 0;
line.clear();
Vector3 tmpPt;
// Loop through the algorithm the specified number of times.
for (int i = 0; i < numPts; i++)
{
//randPt = Point.getRandomPoint(rand);
randPt = getRandomPoint();
// add random Point
last += randPt;
if (Random.value > percAreNodes)
{
continue;
}
tmpPt = new Vector3(last.x, last.y, last.z);
// add the new point to the list
line.addPoint(tmpPt);
if (line.size() > 2)
{
if (line.isAcuteXAngle())
{
numAcuteX++; consecAcuteX++;
}
else
{
consecAcuteX = 0;
}
if (line.isAcuteYAngle())
{
numAcuteY++; consecAcuteY++;
}
else
{
consecAcuteY = 0;
}
if (line.isAcuteZAngle())
{
numAcuteZ++; consecAcuteZ++;
}
else
{
consecAcuteZ = 0;
}
}
if (consecAcuteX > maxClusterSize || consecAcuteY > maxClusterSize || consecAcuteZ > maxClusterSize)
{
redraws++;
i += numPts;
foundCluster = true;
break;
}
}
if (numAcuteX > maxAcute || numAcuteY > maxAcute || numAcuteZ > maxAcute)
{
if (!foundCluster)
{
redraws++;
}
isAcute = true;
}
}
Debug.Log("Num Redraws: " + redraws);
line.scale();
return(line);
}
void init()
{
RandomWalk3D flight = RandomWalk3D.createWalk(numPoints, 100, 100);
Vector3 min = new Vector3(-3.0f, 0.0f, -2.2f);
Vector3 max = new Vector3(0.3f, 4.0f, 2.2f);
flight.scale(min, max);
List <Vector3> ptList = flight.getPoints();
Vector3[] pts = ptList.ToArray();
if (useParticles)
{
ParticleSystem.MainModule main = system.main;
main.maxParticles = pts.Length;
main.loop = false;
main.playOnAwake = false;
main.simulationSpace = ParticleSystemSimulationSpace.World;
ParticleSystem.EmissionModule emMod = system.emission;
emMod.enabled = false;
ParticleSystem.ShapeModule shMod = system.shape;
shMod.enabled = false;
ParticleSystem.Particle[] particles = new ParticleSystem.Particle[pts.Length];
for (int i = 0; i < pts.Length; i++)
{
particles[i] = new ParticleSystem.Particle();
particles[i].position = pts[i];
particles[i].velocity = Vector3.zero;
particles[i].angularVelocity = 0.0f;
particles[i].rotation = 0.0f;
particles[i].startSize = 0.1f;
particles[i].startLifetime = 10000.0f;
particles[i].remainingLifetime = 10000.0f;
particles[i].randomSeed = 0;
particles[i].startColor = Color.white;
}
system.SetParticles(particles, pts.Length);
}
else
{
Vector3 cylTrans = new Vector3(0.0f, 0.1f, 0.0f);
Vector3 sphereScale = new Vector3(nodeScale, nodeScale, nodeScale);
Vector3 cylScale = new Vector3(edgeScale, 0.0f, edgeScale);
for (int i = 0; i < pts.Length; i++)
{
GameObject sphere = getNewPoint();
sphere.transform.position = pts[i];
sphere.transform.localScale = sphereScale;
GameObject sphere2 = getNewPoint();
sphere2.transform.position = pts[i];
sphere2.transform.localScale = sphereScale;
sphere2.transform.localRotation = Quaternion.Euler(90.0f, 0.0f, 0.0f);
GameObject sphere3 = getNewPoint();
sphere3.transform.position = pts[i];
sphere3.transform.localScale = sphereScale;
sphere3.transform.localRotation = Quaternion.Euler(0.0f, 90.0f, 0.0f);
if (includeEdges)
{
if (i == 0)
{
continue;
}
GameObject cylinder = (GameObject)Instantiate(cylinderPrefab);
Vector3 dir = pts[i] - pts[i - 1];
float len = dir.magnitude;
dir = Vector3.Normalize(dir);
cylinder.transform.up = dir;
cylinder.transform.position = pts[i - 1] + dir * len * 0.5f;
Vector3 currScale = cylScale;
currScale.y = len * 0.5f;
cylinder.transform.localScale = currScale;
}
}
}
}
