public VariableValue Evaluate(IVariableStore variables, string name, List <Operation> parameters)
{
switch (parameters.Count)
{
case 0:
{
return(VariableValue.Create(Random.value));
}
case 1:
{
var value = parameters[0].Evaluate(variables);
switch (value.Type)
{
case VariableType.Int: return(VariableValue.Create(Random.Range(0, value.Int)));
case VariableType.Float: return(VariableValue.Create(Random.Range(0.0f, value.Float)));
case VariableType.List: return(value.List.GetVariable(Random.Range(0, value.List.Count)));
default: throw CommandEvaluationException.WrongParameterType(name, 0, value.Type, VariableType.Int, VariableType.Float, VariableType.List);
}
}
case 2:
{
var min = parameters[0].Evaluate(variables);
var max = parameters[1].Evaluate(variables);
if (min.Type == VariableType.Int)
{
if (max.Type == VariableType.Int)
{
return(VariableValue.Create(Random.Range(min.Int, max.Int)));
}
else if (max.Type == VariableType.Float)
{
return(VariableValue.Create(Random.Range(min.Int, max.Float)));
}
else
{
throw CommandEvaluationException.WrongParameterType(name, 1, max.Type, VariableType.Int, VariableType.Float);
}
}
else if (min.Type == VariableType.Float)
{
if (max.Type == VariableType.Int)
{
return(VariableValue.Create(Random.Range(min.Float, max.Int)));
}
else if (max.Type == VariableType.Float)
{
return(VariableValue.Create(Random.Range(min.Float, max.Float)));
}
else
{
throw CommandEvaluationException.WrongParameterType(name, 1, max.Type, VariableType.Int, VariableType.Float);
}
}
else
{
throw CommandEvaluationException.WrongParameterType(name, 0, min.Type, VariableType.Int, VariableType.Float);
}
}
default:
{
throw CommandEvaluationException.TooManyParameters(name, parameters.Count, 2);
}
}
}