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Lunya-sh
2026-01-10 20:52:44 +01:00
parent 1f6e9ce376
commit 4a418ddf75
10 changed files with 849 additions and 1 deletions
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Evil Calculator/EquationManager.cs Normal file
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namespace Lunar.Evil_Calculator
{
class EquationManager
{
private ReverseNotationSolver reverseNotationSolver = new ReverseNotationSolver();
List<Token> equation = new List<Token>();
string currentOperand = "";
Label? outerEquationLabel;
Label? outerOperandLabel;
int openParentheses;
//NO OPENING PARENTHESES AFTER NUMERICS OR CLOSING PARENTHESES => NULL, OPENING PARENTHESES OR OPERATOR EXPECTED
//NO CLOSING PARENTHESES AFTER OPERATORS, EXCEPT IF $currentOperand IS NOT ""
//NO CLOSING PARENTHESES WHEN $openParentheses <1
//OPERATOR OR null BEFORE OPENING PARENTHESES EXPECTED
//$openParentheses SHOULD BE 0 BEFORE SOLVING, DISPLAY ERROR OTHERWISE => HANDLED BY SOLVER
//MINUS AFTER OPENING PARENTHESES OR null GOES TO OPERAND IF $currentOperand IS ""
//NO OPERATORS AFTER OPERATORS, OPENING PARENTHESES OR null (EXCEPT FOR MINUS THAT GOES TO OPERAND AND SQRT THAT IS UNAR)
//NO NUMERICS IF currentOperand.StartsWith("0") AND currentOperand.Length == 1, . ALLOWED-EXPECTED
//NO . IF currentOperand.Contains(",")
public void ProcessButtonInput(object? sender, EventArgs e)
{
Button? buttonPressed = sender as Button;
if (buttonPressed != null)
{
switch (buttonPressed.Text)
{
//CLEAR
case "C":
currentOperand = "";
break;
case "CE":
equation.Clear();
currentOperand = "";
break;
//OPERATORS
// + -
case "+":
if ((!IsOperator() && !IsOpen() && !IsNull()) || currentOperand != "" && currentOperand != "-")
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
equation.Add(new Token(Token.TokenType.Operator, buttonPressed.Text, 1));
currentOperand = "";
}
break;
case "-":
if ((!IsOperator() || currentOperand != "") && currentOperand != "-")
{
if ((IsOpen() || IsNull()) && currentOperand == "")
{
currentOperand += "-";
}
else
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
equation.Add(new Token(Token.TokenType.Operator, buttonPressed.Text, 1));
currentOperand = "";
}
}
break;
// * /
case "*" or "/":
if ((!IsOperator() && !IsOpen() && !IsNull()) || currentOperand != "" && currentOperand != "-")
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
equation.Add(new Token(Token.TokenType.Operator, buttonPressed.Text, 2));
currentOperand = "";
}
break;
//SQUARE ROOT
case "√":
if (!IsClose())
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
equation.Add(new Token(Token.TokenType.Operator, buttonPressed.Text, 3));
currentOperand = "";
}
break;
//SQUARE AND POWER
case "x²":
if ((!IsOperator() && !IsOpen() && !IsNull()) || currentOperand != "" && currentOperand != "-")
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
equation.Add(new Token(Token.TokenType.Operator, "^", 3));
equation.Add(new Token(Token.TokenType.Operand, "2"));
currentOperand = "";
}
break;
case "xˣ":
if ((!IsOperator() && !IsOpen() && !IsNull()) || currentOperand != "" && currentOperand != "-")
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
equation.Add(new Token(Token.TokenType.Operator, "^", 3));
currentOperand = "";
}
break;
//PARENTHESES
case "(":
if (IsOperator() || IsOpen() || IsNull())
{
equation.Add(new Token(Token.TokenType.Operator, buttonPressed.Text));
openParentheses++;
currentOperand = "";
}
break;
case ")":
if ((!IsOperator() || currentOperand != "") && openParentheses > 0 && currentOperand != "-")
{
if (currentOperand.Length > 0)
{
equation.Add(new Token(Token.TokenType.Operand, currentOperand));
currentOperand = "";
}
equation.Add(new Token(Token.TokenType.Operator, buttonPressed.Text));
openParentheses--;
}
break;
//POINT
case ",":
if (currentOperand.Length > 0 && !currentOperand.Contains(","))
{
currentOperand += buttonPressed.Text;
}
break;
//NUMERIC
default:
if (!(currentOperand.Length == 1 && currentOperand.StartsWith("0")))
{
currentOperand += buttonPressed.Text;
}
break;
}
UpdateLabels();
}
}
public void EqualsButtonPressed(object? sender, EventArgs e)
{
Button? buttonEquals = sender as Button;
if (buttonEquals != null)
{
if (currentOperand != "") equation.Add(new Token(Token.TokenType.Operand, currentOperand));
buttonEquals.Text = "#";
this.currentOperand = reverseNotationSolver.Solve(ref equation);
UpdateLabels();
}
}
public void AcquireOutputLabels(ref Label equationTextBox, ref Label currentOperandTextBox)
{
this.outerEquationLabel = equationTextBox;
this.outerOperandLabel = currentOperandTextBox;
}
public string equationToString()
{
string equationString = "";
foreach (Token token in equation)
{
equationString += token.value.ToString() + " ";
}
return equationString;
}
private void UpdateLabels()
{
if (outerEquationLabel != null && outerOperandLabel != null)
{
outerEquationLabel.Text = equationToString();
outerOperandLabel.Text = currentOperand == "" ? "0" : currentOperand;
}
}
private bool IsOperator()
{
if (equation.Count == 0) return false;
return new[] { "+", "-", "*", "/", "^", "√" }.Contains(equation.Last().value);
}
private bool IsOpen()
{
if (equation.Count == 0) return false;
return equation.Last().value == "(";
}
private bool IsClose()
{
if (equation.Count == 0) return false;
return equation.Last().value == ")";
}
private bool IsNull()
{
return equation.Count == 0;
}
}
}