HTML and CSS Reference
In-Depth Information
Code
Explanation
keyCode = event.keyCode;
Get
keyCode
from event
event.preventDefault();
Stop default action
}
Close clause
Switch on
keyCode
switch(keyCode) {
case 37:
If left arrow
mypent.moveit(-unit,0);
Move back horizontally
break;
Leave switch
case 38:
If up arrow
mypent.moveit(0,-unit);
Move up screen
break;
Leave switch
case 39:
If right arrow
mypent.moveit(unit,0);
Move left
break;
Leave switch
case 40:
If down arrow
mypent.moveit(0,unit);
Move down screen
break;
Leave switch
Default:
Anything else
window.removeEventListener('keydown',
getkeyAndMove,false);
Stop listening for keys. Assume player
trying to save to local storage or retrieve
from local storage.
}
Close switch
Drawall();
Draw everything
