Events

RTR works entirely off of events, allowing the language to be very efficient since it doesn't need to run excess code when the user is doing nothing

Event syntax

event [event] {
  // code
}

Example code:

event update {
   frames += 1
   log("this runs every frame")
}

event onload {
  frames = 0
}

event mouse onmove {
  event = window.mouse
  log(event.data.x, event.data.y)
}

Running an event manually

You can manually run an event using the syntax below:

call [event name]
// this directly runs the event, by name, and waits until it stops executing

call async [event name]
// this runs the event in parallel without pausing the parent event

Event List

Here is a list of events:

System

onload
// the first frame that the script is executed

update
// every frame this will be called

render
// whenever a re-render is needed

resize
// when the screen is resized

Mouse

// mouse buttons

mouse left.down
// run on left mouse click
mouse left.up
// run on left mouse release

mouse right.down
// run on right mouse click
mouse right.up
// run on right mouse release

mouse middle.down
// run on middle mouse click
mouse middle.up
// run on middle mouse release

// mouse position
mouse onmove

Keys

// Keyboard presses

key [keyname].down
// run when the key is pressed

key [keyname].up
// run when the key is released