HTML and CSS Reference
In-Depth Information
Creating a Timer Loop
As it currently stands, our code will be called only a single time. Let's create a simple timer
loop that will call the
drawScreen()
function 10 times a second, or once every 100 milli-
seconds. A timer loop that is set to run at a certain frame rate is sometimes referred to as a
frame tick
or
timer tick
. Each tick is simply a single iteration of the timer running all the code
that we put into our
drawScreen()
function. We will also need a function that starts the timer
loop and initiates the tick after the image has preloaded properly. We'll name this function
startUp()
:
function
function
eventShipLoaded
() {
startUp
();
}
function
function
startUp
(){
gameLoop
();
}
function
function
gameLoop
() {
window
.
setTimeout
(
gameLoop
,
100
);
drawScreen
();
}
