toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse
function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString
to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
final b = StringBuffer();
b.writeln('Energy Field: ');
b.writeln(' minPosition: $minPosition');
b.writeln(' energy min: $_minValue');
b.writeln(' $space'.replaceAll('\n', '\n '));
return b.toString();
}