private Vector4 AttractorDir(Vector3 dir, LineAttractor attractor)
{
LineAttractorData data = attractor.Data;
Vector3 p0 = attractor.P0.position;
Vector3 p1 = attractor.P1.position;
Vector3 cp = Utils.ClosestPointOnLine(transform.position, p0, p1);
Vector3 lineDir = (p1 - p0).normalized;
int lineAlignment = Vector3.Dot(lineDir, dir) > 0 ? 1 : -1;
if (dir == Vector3.zero)
{
lineAlignment = 0;
}
Vector3 attractorDir = lineDir * lineAlignment;
float d = (transform.position - cp).magnitude;
float d01 = Mathf.Clamp01(Mathf.InverseLerp(data.Range, 0, d)); // closer to the line, higher the value
if (data.Curve != null)
{
d01 = data.Curve.Evaluate(d01);
}
Vector3 lerpDir = Vector3.Lerp(dir, attractorDir, d01 * data.Power);
return(new Vector4(lerpDir.x, lerpDir.y, lerpDir.z, d));
}
private void OnDrawGizmos()
{
// positions history
for (int i = 0; i < MoveVectorHistory.Count; i++)
{
Color color = Color.white;
color.a = Mathf.Lerp(0.1f, 1, (float)i / (float)MoveVectorHistory.Count);
Gizmos.color = color;
Gizmos.DrawSphere(PositionHistory[i], .05f);
//Gizmos.DrawRay(PositionHistory[i], MoveVectorHistory[i]);
}
// line attractor gizmos
if (UseAttractor)
{
// get closest attractor
LineAttractor closestAttractor = null;
float closestDist = Mathf.Infinity;
foreach (LineAttractor attractor in LineAttractorsList)
{
Vector4 attractorDir = AttractorDir(InputDirRelToCamera, attractor);
if (attractorDir.w < closestDist)
{
closestDist = attractorDir.w;
closestAttractor = attractor;
}
}
// draw closest attractor dirs
if (closestAttractor != null)
{
LineAttractorData data = closestAttractor.Data;
Vector3 p0 = closestAttractor.P0.position;
Vector3 p1 = closestAttractor.P1.position;
// closest point and line
Gizmos.color = Color.red;
Vector3 cp = Utils.ClosestPointOnLine(transform.position, p0, p1);
Gizmos.DrawSphere(cp, .2f);
Gizmos.DrawLine(transform.position, cp);
// temp values
Vector3 inputDir = InputDirRelToCamera;
Vector3 lineDir = (p1 - p0).normalized;
Vector3 attractedDir = (lineDir + inputDir).normalized;
Vector3 lerpDir = AttractorDir(inputDir, closestAttractor);
// gizmos dirs
Gizmos.color = Color.white;
Gizmos.DrawRay(transform.position, inputDir * 2);
Gizmos.color = Color.blue;
Gizmos.DrawRay(transform.position, InputDirRelToCamera * 2);
Gizmos.color = Color.yellow;
Gizmos.DrawRay(transform.position, lineDir * 2);
Gizmos.color = Color.green * .75f;
Gizmos.DrawRay(transform.position, attractedDir * 1.8f);
Gizmos.color = Color.green;
Gizmos.DrawRay(transform.position, lerpDir * 1.8f);
}
}
}
