examples/input/game.input_binding

key_trigger {
  input: KEY_UP
  action: "up"
}
key_trigger {
  input: KEY_DOWN
  action: "down"
}
key_trigger {
  input: KEY_LEFT
  action: "left"
}
key_trigger {
  input: KEY_RIGHT
  action: "right"
}
key_trigger {
  input: KEY_BACKSPACE
  action: "backspace"
}
key_trigger {
  input: KEY_SPACE
  action: "action"
}
mouse_trigger {
  input: MOUSE_BUTTON_LEFT
  action: "touch"
}
touch_trigger {
  input: TOUCH_MULTI
  action: "multitouch"
}
text_trigger {
  input: TEXT
  action: "type"
}