void Start()
{
generalisedGrabDetector = FindObjectOfType <GeneralisedGrabDetector>();
SetLineRendererWidthScale(1);
}
List <Vector3> GenerateArcPositions(float _arcLengthPercentage, float _arcAngle)
{
if (generalisedGrabDetector == null)
{
// try to re-find it!
generalisedGrabDetector = FindObjectOfType <GeneralisedGrabDetector>();
if (generalisedGrabDetector == null)
{
return(new List <Vector3>());
}
}
float circleCentreOffsetBase = cursorDotSize * CircleCentreOffsetBaseScale * _screenScale;
float arcMidpointRadius = cursorDotSize * ArcMidpointOffsetScale * _screenScale;
float currentCircleOffsetRadius = ScreenControlUtility.MapRangeToRange(radiusScale.Evaluate(generalisedGrabDetector.GeneralisedGrabStrength), 1, 0, arcMidpointRadius / 2, circleCentreOffsetBase);
Vector2 anchoredPosition = Camera.main.ScreenToWorldPoint(cursorTransform.anchoredPosition);
Vector2 arcOffset = new Vector2()
{
x = arcMidpointRadius * Mathf.Cos(Mathf.Deg2Rad * _arcAngle),
y = arcMidpointRadius * Mathf.Sin(Mathf.Deg2Rad * _arcAngle)
};
Vector2 currentCircleOffset = new Vector2()
{
x = currentCircleOffsetRadius * Mathf.Cos(Mathf.Deg2Rad * (_arcAngle + 180)),
y = currentCircleOffsetRadius * Mathf.Sin(Mathf.Deg2Rad * (_arcAngle + 180))
};
Vector3 arcMidpoint = new Vector3()
{
x = anchoredPosition.x + arcOffset.x,
y = anchoredPosition.y + arcOffset.y,
z = transform.position.z,
};
Vector3 circleCentre = new Vector3()
{
x = arcMidpoint.x + currentCircleOffset.x,
y = arcMidpoint.y + currentCircleOffset.y,
z = arcMidpoint.z,
};
float finalOffsetRadius = arcMidpointRadius / 2;
float arcLength = (float)(2 * Math.PI * finalOffsetRadius) * _arcLengthPercentage;
Vector2 delta = (circleCentre - arcMidpoint);
float thetaMidpoint = (Mathf.Deg2Rad * 180) + Mathf.Atan2(delta.y, delta.x);
float thetaMin = thetaMidpoint - ((arcLength / 2) / currentCircleOffsetRadius);
float thetaMax = thetaMidpoint + ((arcLength / 2) / currentCircleOffsetRadius);
List <Vector3> positions = new List <Vector3>();
for (int i = 0; i < LineRendererPositions; i++)
{
float currentTheta = thetaMin + (i * (thetaMax - thetaMin) / LineRendererPositions);
positions.Add(new Vector3()
{
x = circleCentre.x + Mathf.Cos(currentTheta) * currentCircleOffsetRadius,
y = circleCentre.y + Mathf.Sin(currentTheta) * currentCircleOffsetRadius,
z = circleCentre.z
});
}
return(positions);
}
