Hello World

Hello World

BEGIN
	Hello World
END

Hello World

BEGIN
	Hello World
	
	BEGIN
		Hi World
	END
	
	Bye World
END

Hello World
Hi World
Bye World

Hello World


// with GOTO
BEGIN
	MY_LABEL:
	Hi World
	GOTO MY_LABEL     # jumps to label
END


// with LOOP
BEGIN
	Hi World
	LOOP     # jumps to beginning of current code block
END


// with IF ... LOOP
BEGIN
	Hi World
	IF <condition> LOOP
END


// with IF ... THEN
IF <condition> THEN
	Hi World
	LOOP
END


// with WHILE
WHILE <condition> DO
	Hi World
END


Bye World

Hello World
Hi World
Hi World
Hi World
Hi World
Hi World
...
Bye World

FUNCTION sumfin
	Hello World
END

CALL sumfin
CALL sumfin

Hello World
Hello World

FUNCTION sumfin
	Hello World
	
	FUNCTION aww
		Bye World
	END
	
	CALL aww
END

FUNCTION aww           # note function with same name, in different scope
	Odd World
END

CALL sumfin
CALL sumfin
CALL aww

Hello World
Bye World
Hello World
Bye World
Odd World

Hello World

YIELD              # interrupt and reschedule immediately
SLEEP <time>       # interrupt and reschedule after specific amount of time

Hi World

WAIT               # interrupt and reschedule manually

Bye World

HALT               # interrupt and halt the script (cannot be resumed)

Odd World

BREAK              # terminates current scope
LOOP               # go to beginning of current scope
GOTO <label>       # go to label in current scope
CALL <function>    # execute function in current scope or parent (recursively)
HALT               # terminates all open scopes
THROW <id>         # terminates open scopes until scope with found with CATCH <id>

IF <condition> BREAK
IF <condition> CALL <function>
IF NOT <condition> CALL <function>
IF NOT <condition> GOTO <label> ELSE SLEEP <time>
IF <condition> WAIT ELSE THROW 10001

IF <condition> THEN
	...
END

WHILE NOT <condition> DO
	...
END

FUNCTION a
	CALL b
END

FUNCTION b
	FUNCTION c
		Hello World
		THROW 10001
		Bye World
	END
	
	FUNCTION d
		Odd World
	END
	
	
	CALL c
	HALT                   # never reaches this line as function 'c' aborts
	
	CATCH 10001 CALL d
	CATCH 10002 CALL e     # never reaches this line as 10002 is never thrown
	
	Hi World
END

CALL a

Hello World
Odd World
Hi World

SLEEP 3s


# let passengers leave
WHILE bus.hasOutboundPassenger() DO
	bus.makeOutboundPassengerLeaveBus()
	SLEEP 500ms
END


# let passengers enter
WHILE NOT bus.shouldDepart() DO
	IF bus.hasInboundPassenger() THEN
		bus.makeInboundPassengerEnterBus()
	END
	
	SLEEP 0.25s
END


SLEEP 2s


# travel!
bus.depart()
WAIT             # resume script when game determines bus has reached destination
bus.onArrive()


LOOP