HTML and CSS Reference
In-Depth Information
context
.
save
();
//save current state in stack
context
.
setTransform
(
1
,
0
,
0
,
1
,
0
,
0
);
// reset to identity
//translate the canvas origin to the center of the player
context
.
translate
(
x
+
.
5
*
width
,
y
+
.
5
*
height
);
context
.
rotate
(
angleInRadians
);
//drawShip
context
.
strokeStyle
=
'#ffffff'
;
context
.
beginPath
();
//hardcoding in locations
//facing right
context
.
moveTo
(
-
10
,
-
10
);
context
.
lineTo
(
10
,
0
);
context
.
moveTo
(
10
,
1
);
context
.
lineTo
(
-
10
,
10
);
context
.
lineTo
(
1
,
1
);
context
.
moveTo
(
1
,
-
1
);
context
.
lineTo
(
-
10
,
-
10
);
context
.
stroke
();
context
.
closePath
();
//restore context
context
.
restore
();
//pop old state on to screen
}
var
var
FRAME_RATE
=
40
;
var
var
intervalTime
=
1000
/
FRAME_RATE
;
gameLoop
();
function
function
gameLoop
() {
drawScreen
();
window
.
setTimeout
(
gameLoop
,
intervalTime
);
}
document
.
onkeydown
=
function
function
(
e
){
e
=
e
?
e
:
window
.
event
;
//ConsoleLog.log(e.keyCode + "down");
keyPressList
[
e
.
keyCode
]
=
true
true
;
}
document
.
onkeyup
=
function
function
(
e
){
//document.body.onkeyup = function(e){
