Special commands

newText("helloworld", "Hello world!")
    .print()
,
newImage("smiley", "ya.png")
    .print()
,
newButton("erase", "Erase")
    .print()
    .wait()
,
clear()
,
newButton("void", "Enough with the emptiness")
    .print()
    .wait()

1. Prints a line of Text, an Image and a Button with the text "erase" to the screen.
2. Remove the three elements from the screen when the "erase" Button is clicked.
3. Print a new Button that is waiting to be clicked to the screen.

PennController.ResetPrefix(null);

newTrial(
    newText("instructions", "Press F to end the trial immediately, or press J to continue.")
    	.print()
    ,
    newKey("fj", "FJ")
        .wait()
    ,
    getKey("fj")
        .test.pressed("F")
        .success(end())
        .failure(
            newText("continue", "The trial has continued! Press the spacebar to finish.")
                .print()
            ,
            newKey(" ")
                .wait()
        )
)

1. Prints the "instructions" Text element to the screen.
2. Creates the "fj" Key element and waits for the F or J key to be pressed.
   • If F was pressed, end the trial immediately.
   • Otherwise, print the "continue" Text element and wait for the Spacebar key to be pressed.

etc

newTrial(
  newButton("Start the experiment and go fullscreen!")
    .print()
    .wait()
  ,
  fullscreen()
)

newTrial(
  newScale(100)
    .before( newText("It is cold here") )
    .after(  newText("It is warm here") )
    .slider()
    .print()
    .wait()
)

SendResults()

newTrial(
   exitFullscreen()
   ,
   newText("Thank you for your participation!")
     .print()
   ,
   newTimer().wait()
)