// Analyseert de lijst en voert bijbehorende commando's uit.
private static void AnalyseAndPerformActions(List <string> commandList)
{
for (var i = 0; i < commandList.Count; i++)
{
switch (commandList[i])
{
case "fd":
case "forward":
Turtle.Move(GetNextNumber(i, commandList));
UpdatePositionVariables();
i += lengthOfNumericalInput;
break;
case "bk":
case "backward":
Turtle.Move(-GetNextNumber(i, commandList));
UpdatePositionVariables();
i += lengthOfNumericalInput;
break;
case "rt":
case "turn":
Turtle.Turn(GetNextNumber(i, commandList));
variables["angle"] = Turtle.Angle;
i += lengthOfNumericalInput;
break;
case "lt":
Turtle.Turn(-GetNextNumber(i, commandList));
variables["angle"] = Turtle.Angle;
i += lengthOfNumericalInput;
break;
case "wait":
System.Threading.Thread.Sleep((int)System.Math.Round(GetNextNumber(i, commandList) * 1000 / 60));
i += lengthOfNumericalInput;
break;
case "speed":
Turtle.Speed = GetNextNumber(i, commandList);
variables["speed"] = Turtle.Speed;
i += lengthOfNumericalInput;
break;
case "msg":
case "message":
case "print":
if (i + 1 < commandList.Count)
{
TextWindow.WriteLine(RemoveBrackets(commandList[i + 1]));
i++;
}
else
{
ThrowException(5);
}
break;
case "line":
SplitMultiNumberList(i, commandList, 4);
GraphicsWindow.DrawLine(multiNumberList[0], multiNumberList[1], multiNumberList[2], multiNumberList[3]);
i++;
break;
case "setpos":
SplitMultiNumberList(i, commandList, 2);
Turtle.X = multiNumberList[0];
Turtle.Y = multiNumberList[1];
UpdatePositionVariables();
i++;
break;
case "setpc":
SplitMultiNumberList(i, commandList, fromPenColor: true);
GraphicsWindow.PenColor = GraphicsWindow.GetColorFromRGB(
multiNumberList[0], multiNumberList[1], multiNumberList[2]);
i++;
break;
case "setbc":
SplitMultiNumberList(i, commandList);
GraphicsWindow.BackgroundColor = GraphicsWindow.GetColorFromRGB(
multiNumberList[0], multiNumberList[1], multiNumberList[2]);
i++;
break;
case "hide":
case "hideturtle":
case "ht":
Turtle.Hide();
turtleIsHidden = true;
break;
case "show":
case "showturtle":
case "st":
if (turtleIsHidden)
{
Turtle.Show();
}
turtleIsHidden = false;
break;
case "pu":
case "penup":
Turtle.PenUp();
break;
case "pd":
case "pendown":
Turtle.PenDown();
break;
case "file":
if (i + 1 < commandList.Count)
{
DrawFromFile(RemoveBrackets(commandList[i + 1]));
i++;
}
else
{
ThrowException(5);
}
break;
case "setorientation":
Turtle.Angle = GetNextNumber(i, commandList);
variables["angle"] = Turtle.Angle;
i += lengthOfNumericalInput;
break;
case "setpx":
case "setpixel":
SplitMultiNumberList(i, commandList, 2);
GraphicsWindow.SetPixel(multiNumberList[0], multiNumberList[1], GraphicsWindow.PenColor);
i++;
break;
case "repeat":
i += RepeatCommands(i, commandList);
break;
case "for":
ForLoop(i, commandList);
i += 2;
break;
case "while":
WhileLoop(i, commandList);
i += 2;
break;
case "circle":
int circleRadius = (int)GetNextNumber(i, commandList);
GraphicsWindow.DrawEllipse(Turtle.X - circleRadius, Turtle.Y - circleRadius, circleRadius * 2, circleRadius * 2);
i += lengthOfNumericalInput;
break;
case "cs":
ResetTurtle();
break;
case "ct":
TextWindow.Clear();
break;
case "help":
PrintHelp();
break;
case "if":
i += CompareInputs(i, commandList);
break;
case "make":
AddVariable(i, commandList);
i += lengthOfNumericalInput + 1;
break;
case "to":
i += ToCommandBase(i, commandList) + 2;
break;
default:
if (toShortcuts.ContainsKey(commandList[i]))
{
AnalyseAndPerformActions(toShortcuts[commandList[i]]);
}
else if (commandList[i].StartsWith(":"))
{
TextWindow.WriteLine(GetNextNumber(i, commandList, 0));
i += lengthOfNumericalInput - 1;
}
else
{
ThrowException(0, commandList[i]);
}
break;
}
}
}