//USED TO UPDATE THE BRANCHES EVERY FRAME
public void UpdateRecursions()
{
float absolutTime = time * maxDuration;
for (int i = 0; i < actualBranchesNumber; i++)
{
//DISTANCE FROM ROOT / LENGTH
BranchesInfo branch = branches [i];
//NOT GROWN
if (branch.birthDate > absolutTime)
{
branch.branch.time = 0f;
}
else
{
if (absolutTime - branch.birthDate < branch.growthDuration || !branch.grownOnce)
{
branch.branch.time = Mathf.Min((absolutTime - branch.birthDate) / branch.growthDuration, 1f);
float radius = Mathf.Lerp(
initialShapeOverLength.Evaluate(branch.lengthRatio),
finalShapeOverLength.Evaluate(branch.lengthRatio),
shapeOverTime.Evaluate(time));
branch.branch.transform.position = branch.finalPosition - positionsAndNormals.nor [branch.normalIndex] * radius;
branch.grownOnce = true;
branch.branch.UpdatePlant();
}
}
}
}
//USED TO FIRST GENERATE THE BRANCHES ON THE PLANT
public void GenerateRecursions()
{
actualBranchesNumber = 0;
Vector3 randomVector = new Vector3(0.132354f, 1.98654f, -1.5646f).normalized;
//CREATE THE PARENT OF ALL LEAVES
if (branchesParent != null)
{
DestroyImmediate(branchesParent.gameObject);
}
branchesParent = new GameObject("branchesParent").transform;
branchesParent.parent = transform;
branchesParent.transform.localPosition = Vector3.zero;
branches = new BranchesInfo[nbOfBranches];
//FINISHED POINTS OF THE MODEL
GeneratePoints(1f, points);
float angle = Random.value * 2 * Mathf.PI;
for (int i = 0; i < nbOfBranches; i++)
{
float lengthRatio = (float)i / (float)nbOfBranches;
lengthRatio = branchesDistributionOverLength.Evaluate(lengthRatio);
if (lengthRatio == 1f)
{
lengthRatio = (nbOfSegments - 1f) / (float)nbOfSegments;
}
float proba = branchesDistribution.Evaluate(lengthRatio);
if (Random.value < proba)
{
//POSITION
int segment = (int)(lengthRatio * nbOfSegments);
float lerpValue = (lengthRatio - (segment / (float)nbOfSegments)) * nbOfSegments;
//float value = Random.value;
float value = 0f;
//POINT AND OPPOSED POINT
int pointIndex1 = nbOfSides * segment + (int)(value * nbOfSides);
int pointIndex2 = nbOfSides * segment + (int)((value + 0.5f > 1f ? value - 0.5f : value + 0.5f) * nbOfSides);
// INTERPOLATION BETWEEN SEGMENTS
Vector3 position = Vector3.zero;
if (branchesOnlyOnSections)
{
position = positionsAndNormals.pos [segment];
}
else
{
position = Vector3.Lerp(positionsAndNormals.pos [segment], positionsAndNormals.pos [segment + 1], lerpValue);
}
float actualTrunkRadius = finalShapeOverLength.Evaluate(lengthRatio) * initialRadius;
//INITIAL RADIUS
float initialBrancheRadiusBranch = actualTrunkRadius * 0.8f;
if (offsetTangents)
{
Vector3 normal = positionsAndNormals.nor [segment];
position += normal * actualTrunkRadius;
}
Vector3 tangentDirection = (points [pointIndex1 + nbOfSides] - points [pointIndex1]).normalized;
//INITIAL DIRECTION
Vector3 u = (points[pointIndex1] - points[pointIndex2]).normalized;
Vector3 v = Vector3.Cross(tangentDirection, u).normalized;
angle += brancheAngleDelta;
Vector3 direction = u * Mathf.Cos(angle) + v * Mathf.Sin(angle);
//????????????????
//TANGEANT DIRECTION
//ORIENTATION TOWARD THE SUN ?????????????????
direction = Vector3.Lerp(direction, tangentDirection, branchesTangencityOverLength.Evaluate(lengthRatio));
direction.Normalize();
float growthDuration = branchGrowthDuration.RandomValue();
float birthDate = Mathf.Lerp(maxDuration - growthDuration, ValueAt(trunkTimeOverTime, lengthRatio) * maxDuration, branchBirthDateDistribution.Evaluate(Random.value));
//BRANCHE CREATION
Plant branche = Instantiate(branchPrefab, position, Quaternion.identity).GetComponent <Plant> ();
branche.transform.parent = branchesParent;
branche.transform.position = position;
branche.name = "Branche_" + actualBranchesNumber.ToString();
//PARAMETERS SETTINGS
branche.TrunkGrowthDuration = branchGrowthDuration;
//branche.leafGrowthDuration = leafGrowthDuration;
branche.isBranch = true;
branche.InitialDirection = direction;
if (!branche.brancheIndependentRadius)
{
branche.initialRadius = initialBrancheRadiusBranch * branchInitialRadiusMultiplier.RandomValue();
}
else
{
branche.initialRadius *= branchInitialRadiusMultiplier.RandomValue();
}
branche.initialNormal = tangentDirection;
//branche.initialSegmentLength = initialSegmentLength;
//branche.finalSegmentLength = finalSegmentLength;
//branche.nbOfSides = Mathf.Max (3, nbOfSides - 1);
if (!branche.brancheIndependentLength)
{
float nbOfS = branchLengthOverTrunkLength.Evaluate(lengthRatio) * nbOfSegments * brancheLengthRatio.RandomValue() + 1;
branche.nbOfSegments = (int)nbOfS;
}
else
{
float mult = brancheLengthRatio.RandomValue();
branche.finalSegmentLength *= mult;
branche.initialSegmentLength *= mult;
}
//BRANCH CREATION
branche.time = 0f;
branche.InitializePlant();
BranchesInfo b = new BranchesInfo(branche, birthDate, segment, position, lengthRatio, growthDuration);
branches [actualBranchesNumber] = b;
//INCREMENTS
actualBranchesNumber++;
}
}
}