private void DrawCurve(SineDeformer sine)
{
var forward = sine.Axis.forward;
var size = HandleUtility.GetHandleSize(sine.Axis.position) * 5f;
var a = sine.Axis.position - (forward * size);
var b = sine.Axis.position + (forward * size);
var pointSet = false;
var lastPointOnCurve = Vector3.zero;
for (int i = 0; i <= DeformHandles.DEF_CURVE_SEGMENTS; i++)
{
var pointOnLine = sine.Axis.worldToLocalMatrix.MultiplyPoint3x4(Vector3.Lerp(a, b, i / (float)DeformHandles.DEF_CURVE_SEGMENTS));
var newPointOnCurve = pointOnLine + Vector3.up * Mathf.Sin((pointOnLine.z * sine.Frequency + sine.GetTotalOffset()) * Mathf.PI * 2f);
newPointOnCurve.y *= sine.Amplitude;
newPointOnCurve.y *= Mathf.Exp(-sine.Falloff * Mathf.Abs(newPointOnCurve.z));
newPointOnCurve = sine.Axis.localToWorldMatrix.MultiplyPoint3x4(newPointOnCurve);
if (pointSet)
{
DeformHandles.Line(lastPointOnCurve, newPointOnCurve, DeformHandles.LineMode.Solid);
}
lastPointOnCurve = newPointOnCurve;
pointSet = true;
}
}
private void DrawGuides(SineDeformer sine)
{
var direction = sine.Axis.forward;
var size = HandleUtility.GetHandleSize(sine.Axis.position) * 5f;
var baseA = sine.Axis.position - direction * size;
var baseB = sine.Axis.position + direction * size;
DeformHandles.Line(baseA, baseB, DeformHandles.LineMode.LightDotted);
DeformHandles.Line(baseA + sine.Axis.up * sine.Amplitude, baseB + sine.Axis.up * sine.Amplitude, DeformHandles.LineMode.LightDotted);
DeformHandles.Line(baseA - sine.Axis.up * sine.Amplitude, baseB - sine.Axis.up * sine.Amplitude, DeformHandles.LineMode.LightDotted);
}
private void DrawMagnitudeHandle(SineDeformer sine)
{
var direction = sine.Axis.up;
var magnitudeHandleWorldPosition = sine.Axis.position + direction * sine.Amplitude * sine.Axis.lossyScale.y;
using (var check = new EditorGUI.ChangeCheckScope())
{
var newMagnitudeWorldPosition = DeformHandles.Slider(magnitudeHandleWorldPosition, direction);
if (check.changed)
{
Undo.RecordObject(sine, "Changed Magnitude");
var newMagnitude = DeformHandlesUtility.DistanceAlongAxis(sine.Axis, sine.Axis.position, newMagnitudeWorldPosition, Axis.Y) / sine.Axis.lossyScale.y;
sine.Amplitude = newMagnitude;
}
}
}
private void DrawFrequencyHandle(SineDeformer sine)
{
var direction = sine.Axis.forward;
var frequencyHandleWorldPosition = sine.Axis.position + direction * (1f / sine.Frequency * sine.Axis.lossyScale.z);
using (var check = new EditorGUI.ChangeCheckScope())
{
var newFrequencyWorldPosition = DeformHandles.Slider(frequencyHandleWorldPosition, direction);
if (check.changed)
{
Undo.RecordObject(sine, "Changed Frequency");
var newFrequency = sine.Axis.lossyScale.z / DeformHandlesUtility.DistanceAlongAxis(sine.Axis, sine.Axis.position, newFrequencyWorldPosition, Axis.Z);
sine.Frequency = newFrequency;
}
}
}
void Start()
{
sine = GetComponentInChildren <SineDeformer>();
}
