static void UpdateWaveParams(Material material, WaveParams parms)
{
material.SetFloat("_OrbitRadius", parms.orbitRadius);
material.SetFloat("_WaveNumber", parms.waveNumber);
material.SetFloat("_AngularSpeed", parms.angularSpeed);
material.SetFloat("_MaxStretch", parms.maxStretch);
material.SetFloat("_MaxDisplacement", parms.maxDisplacement);
material.SetFloat("_DisplacementFactor", parms.displacementFactor);
material.SetVector("_Center", new Vector3(parms.center.x, 0, parms.center.y));
}
public void Initialise(WaveParams waveParams)
{
// Instantiate the wave segments, and set the initial wave rotation
WaveSegments = new WaveSegment[waveParams.SegmentCount];
var waveWidth = WaveSegment.SEGMENT_WIDTH * waveParams.SegmentCount;
var leftOrigin = new Vector3(-waveWidth / 2, 0, 0);
var leftControlPointInOrigin = new Vector3(-0.2f, 0, 0).Rotated(new Vector3(0, 0, 1), waveParams.LeftControlRotationRad);
var leftControlPointOutOrigin = new Vector3(0.2f, 0, 0).Rotated(new Vector3(0, 0, 1), waveParams.LeftControlRotationRad);
var rightOrigin = new Vector3(waveWidth / 2, 0, 0);
var rightControlPointInOrigin = new Vector3(0.2f, 0, 0).Rotated(new Vector3(0, 0, 1), waveParams.RightControlRotationRad);
var rightControlPointOutOrigin = new Vector3(-0.2f, 0, 0).Rotated(new Vector3(0, 0, 1), waveParams.RightControlRotationRad);
var curve = new Curve3D();
var gap = rightOrigin - leftOrigin;
// control point locations are relative to the curve point origin (i.e not global coordinates)
curve.AddPoint(leftOrigin,
SetControlPoint(gap.Length(), leftControlPointInOrigin),
SetControlPoint(gap.Length(), leftControlPointOutOrigin));
curve.AddPoint(rightOrigin,
SetControlPoint(gap.Length(), rightControlPointInOrigin),
SetControlPoint(gap.Length(), rightControlPointOutOrigin));
// instantiate wave segments
var segmentFraction = (float)1 / waveParams.SegmentCount;
for (var i = 0; i < waveParams.SegmentCount; i++)
{
var waveSegment = WaveSegmentScene.Instance() as WaveSegment;
// xOffset moves from leftOrigin to rightOrigin in a number of steps equal to the segment count
var xOffset = leftOrigin.x + (rightOrigin.x - leftOrigin.x) * (i * segmentFraction);
var yOffset = curve.Interpolate(0, i * segmentFraction + (segmentFraction / 2));
waveSegment.Translation = new Vector3(xOffset, yOffset.y, 0);
AddChild(waveSegment);
WaveSegments[i] = waveSegment;
}
Rotation = new Vector3(0, 0, waveParams.InitialRotationRad);
RotationRateRad = waveParams.RotationRateRad;
}