Lerc at 06:52, 22 April 2019

2019-04-22T06:52:02Z

Lerc: Created page with "TinyDraw is a simple drawing program that uses the arrow keys. Individual keyboard keys are identified by keycodes. The variable cx is changed when the left and righ..."

2015-01-06T20:46:48Z

Created page with "TinyDraw is a simple drawing program that uses the arrow keys. Individual keyboard keys are identified by keycodes. The variable cx is changed when the left and righ..."

New page

TinyDraw is a simple drawing program that uses the arrow keys.

Individual keyboard keys are identified by [[keycodes]].

The variable cx is changed when the left and right arrow keys are held down.

The variable cy is changed when the up and down arrow keys are held down.

A filled circle is drawn on the screen at the position cx,cy

<edcode>
print("Draw with the arrow keys");

var cx=320;
var cy=240;

function move() {
// the arrow keys have key codes 37,38,39 and 40

if (keyIsDown(38)) {
cy-=1;
}

if (keyIsDown(40)) {
cy+=1;
}

if (keyIsDown(37)) {
cx-=1;
}

if (keyIsDown(39)) {
cx+=1;
}

fillCircle(cx,cy,6);
}

run(move);

</edcode>

@@ Line 14: / Line 14: @@
 print("Draw with the arrow keys");
-var cx=320;
+let cx=320;
-var cy=240;
+let cy=240;

TinyDraw - Revision history

Lerc at 06:52, 22 April 2019

Lerc: Created page with "TinyDraw is a simple drawing program that uses the arrow keys. Individual keyboard keys are identified by keycodes. The variable cx is changed when the left and righ..."