escapeAngle += 90;
var radians = escapeAngle * (Mathf.PI / 180);

var escapeAngleAsDirectionVector = new Vector2 ();
escapeAngleAsDirectionVector.x = Mathf.Cos (radians);
escapeAngleAsDirectionVector.y = Mathf.Sin (radians);

escapeAngleAsDirectionVector = transform.TransformPoint (escapeAngleAsDirectionVector);

Quaternion.Euler(x, y, z) * Vector3.forward;

if(esacapeAngle < 0)
    escapeAngle += 360;

if(escapeAngle >= 360)
    throw error