# Quiz based on an editable text field in which the user types a number or text.

class_name QuizInputField

extends Quiz

var valid_answer setget set_valid_answer

# One of the TYPE_* constants. Set automatically by changing the valid_answer.

var _type := -1

func test_answer(answer: String) -> AnswerTestResult:

var result := AnswerTestResult.new()

answer = answer.strip_edges()

match _type:

TYPE_INT:

assert(valid_answer is int)

if not answer.is_valid_integer():

result.help_message = tr("You need to type a whole number for this answer. Example: 42")

result.is_correct = int(answer) == valid_answer

TYPE_REAL:

assert(valid_answer is float)

if not answer.is_valid_float():

result.help_message = tr('You need to type a decimal for this answer. Use a "." to separate the decimal part. Example: 3.14')

result.is_correct = float(answer) == valid_answer

TYPE_STRING:

assert(valid_answer is String)

# We should test exact strings because some answers will be code and

# require exact capitalization.

result.is_correct = answer == valid_answer

_:

printerr("Unsupported answer type.")

return result

func set_valid_answer(value) -> void:

if value is int or value is float:

valid_answer = value

elif value is String:

value = value.strip_edges()

if value.is_valid_float():

valid_answer = float(value)

elif value.is_valid_integer():

valid_answer = int(value)

else:

valid_answer = value

_type = typeof(valid_answer)

func get_correct_answer_string() -> String:

return valid_answer