public int randomSeed = 0; // A curve specific random seed;
// GET CURVE INPUT //
//
public float GetCurveInput(AmpsBlueprint ownerBlueprint, int particleIndex)
{
float returnValue = 0;
Vector3 v3 = Vector3.zero;
Vector4 v4 = Vector4.zero;
//Matrix4x4 toMatrix = AmpsHelpers.identityMatrix; // Slightly faster than Matrix4x4.identity;
v4 = AmpsHelpers.GetSystemProperty(ownerBlueprint, particleIndex, curveInput);
// The only need to work with conversion to emitter space as everything
// is world relative by default.
if (curveInputCoordSystem == AmpsHelpers.eCoordSystems.Emitter)
{
//toMatrix = ownerBlueprint.ownerEmitter.emitterMatrixFull;
if (AmpsHelpers.isPositionInput(curveInput))
{
v3 = AmpsHelpers.ConvertVector4Vector3(v4);
v3 -= ownerBlueprint.ownerEmitter.transform.position;
v3 = AmpsHelpers.RotateAroundPoint(v3, ownerBlueprint.ownerEmitter.emitterPosition, ownerBlueprint.ownerEmitter.transform.rotation);
v4 = AmpsHelpers.ConvertVector3Vector4(v3, 0);
}
else if (AmpsHelpers.isRotationInput(curveInput))
{
v3 = AmpsHelpers.ConvertVector4Vector3(v4);
v3 += ownerBlueprint.ownerEmitter.transform.rotation.eulerAngles;
v4 = AmpsHelpers.ConvertVector3Vector4(v3, 0);
}
else if (AmpsHelpers.isVelocityInput(curveInput))
{
v3 = AmpsHelpers.ConvertVector4Vector3(v4);
v3 += ownerBlueprint.ownerEmitter.emitterMatrixPositionZero.MultiplyPoint3x4(v3);
v4 = AmpsHelpers.ConvertVector3Vector4(v3, 0);
}
else if (AmpsHelpers.isScaleInput(curveInput))
{
v3 = AmpsHelpers.ConvertVector4Vector3(v4);
v3.x *= ownerBlueprint.ownerEmitter.transform.lossyScale.x;
v3.y *= ownerBlueprint.ownerEmitter.transform.lossyScale.y;
v3.z *= ownerBlueprint.ownerEmitter.transform.lossyScale.z;
v4 = AmpsHelpers.ConvertVector3Vector4(v3, 0);
}
}
if (AmpsHelpers.isFloatInput(curveInput))
{
returnValue = v4.x;
}
else
{
//if (AmpsHelpers.isPositionInput(curveInput)) v = toMatrix.MultiplyPoint3x4(v);
//else v = toMatrix.MultiplyVector(v);
switch (curveInputVectorComponent)
{
case AmpsHelpers.eVectorComponents.X:
returnValue = v4.x;
break;
case AmpsHelpers.eVectorComponents.Y:
returnValue = v4.y;
break;
case AmpsHelpers.eVectorComponents.Z:
returnValue = v4.z;
break;
case AmpsHelpers.eVectorComponents.W:
returnValue = v4.w;
break;
case AmpsHelpers.eVectorComponents.Mag:
returnValue = new Vector3(v4.x, v4.y, v4.z).magnitude;
break;
}
// TODO: Handle Color.
}
// Normalize input.
float finalInputRangeMin = inputRangeMin;
float finalInputRangeMax = inputRangeMax;
if (isInputRangeRandom)
{
System.Random theRandom = new System.Random(ownerBlueprint.ownerEmitter.randomSeed + randomSeed + ownerBlueprint.ownerEmitter.particleIds[particleIndex]);
finalInputRangeMin = Mathf.Lerp(inputRangeMin, inputRangeRandomMin, (float)theRandom.NextDouble());
finalInputRangeMax = Mathf.Lerp(inputRangeMax, inputRangeRandomMax, (float)theRandom.NextDouble());
}
if (finalInputRangeMax - finalInputRangeMin == 0)
{
returnValue = 0;
}
else
{
returnValue = (returnValue - finalInputRangeMin) / (finalInputRangeMax - finalInputRangeMin);
}
return(returnValue);
}