Package slogo.instruction

Class Summary

Class	Description
Addition	Represents a + b, the addition of two expressions
ArithmeticInstruction	The base class of all arithmetic instruction, the evaluate method uses the hook/template method value to return a Double value, the template method returns a double.
Assignment	An assignment instruction assigns an expression to a variable, updating the global state to reflect the assignment.
Back
BinaryExpression	The base class of any binary expression, e.g., a + b, a - b, or, in future use, a < b and so on.
Clean
Clearscreen
Difference
Division	Represents a / b, the division of two expressions
Equal
Forward
Greater
Heading
HideTurtle
Home
IF
Instruction	Represents an instruction in the SLogo language
Left
Less
Minus
Multiplication	Represents a x b, the multiplication of two expressions
Negation	Represents unary minus, e.g., MINUS num OR -expression
NotEqual
PenDown
PenDownP
PenUp
Print	The Print instruction prints an expression.
Product
Quotient
Remainder
Repeat	An AST (abstract syntax tree) for a SLogo REPEAT instruction.
Right
Setx
Setxy
Sety
ShowTurtle
StrictInstructionList	A list of instructions that doesn't include a function definition.
Subtraction	Represents a subtraction (e.g., lhs - rhs)
Sum
Towards
UnaryExpression	Represents a unary expression
Xcor
Ycor