# Drawing simulation
**URL:** https://forum.kirupa.com/t/drawing-simulation/22806
**Category:** flash
**Created:** [June 9, 2003, 3:23am UTC](https://forum.kirupa.com/t/drawing-simulation/22806 "2003-06-09T03:23:51Z")
**Posts on this page:** 4
**Page:** 3
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 10, 2003, 3:49am UTC](https://forum.kirupa.com/t/drawing-simulation/22806/41 "2003-06-10T03:49:53Z")
Ok I commented my code… lemme know if there is anything specific you need me to go more into detail with…
[AS]//declare trigger variable originally set to false
trigger = false;
//create the 3 clips used…
//box is the grey box in the background (created on level 1)
//line is the uhhh line (created on level 2)
//dot is the dot (created on level 3)
//++depth sets each one on a new level (only 1 clip can exist on a level)
this.createEmptyMovieClip(“box”, ++depth);
this.createEmptyMovieClip(“line”, ++depth);
this.createEmptyMovieClip(“dot”, ++depth);
//use drawing API to draw dot
//3 is line width, 0xFF0000 is hex for red, 100 is alpha
dot.lineStyle(3, 0xFF0000, 100);
dot.lineTo(.15, .45);
//set dot clip to be invisible
dot.\_visible = false;
//set lineStyle of line you will be drawing with
//.25 is the line width, 0 (short for black), is the color, 100 is the alpha
line.lineStyle(.25, 0, 100);
line.onMouseDown = function() {
//if when the mouse is pressed it is also over the box clip
if (box.hitTest(\_xmouse, \_ymouse, true)) {
//if trigger is false
if (!trigger) {
//move the line clip the current mouse position
this.moveTo(\_xmouse, \_ymouse);
//make the dot clip visible
dot.\_visible = true;
//move the dot clip to the current mouse position
dot.\_x=\_xmouse, dot.\_y=\_ymouse;
//set trigger to true (so this stays in original position)
trigger = true;
//else… (meaning else if trigger was true)
} else {
//draw a line to the current mouse position
this.lineTo(\_xmouse, \_ymouse);
//make the dot clip invisible again
dot.\_visible = false;
//reset the trigger back to false
trigger = false;
}
//else if the mouse is pressed when it is not over the box clip
} else {
//hide the dot clip again
dot.\_visible = false;
//reset trigger to false
trigger = false;
}
};
//draw box… same as before
box.lineStyle(.25, 0x000000, 50);
box.beginFill(0xEEEEEE, 50);
box.moveTo(20, 0);
box.lineTo(20, 420);
box.lineTo(400, 420);
box.lineTo(400, 0);
box.lineTo(20, 0);
box.endFill();[/AS]
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 10, 2003, 4:01am UTC](https://forum.kirupa.com/t/drawing-simulation/22806/42 "2003-06-10T04:01:59Z")
I was taking a look at your site and remembered that I had visited it once on the beginning of this year, if I`m right 😕
I love the “Pixel Explosion” experiment!
Thanks for the code comments!
Would u mind if I ask you where did you learn so much about AS?
🙂
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 10, 2003, 4:03am UTC](https://forum.kirupa.com/t/drawing-simulation/22806/43 "2003-06-10T04:03:50Z")
The pixel explosion was mostly Ilyas’ coding, I did modify it to do different things though.
As for where I learned so much about AS… I answered that earlier today in another thread 😛
[http://www.kirupaforum.com/forums/showthread.php?s=&threadid=25479](http://www.kirupaforum.com/forums/showthread.php?s=&threadid=25479)
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 22, 2003, 10:37pm UTC](https://forum.kirupa.com/t/drawing-simulation/22806/44 "2003-06-22T22:37:06Z")
sorry to post in an old topic… but i just came up with a better way to limit the drawing between certain coordinates:
```auto
minX = 5;
minY = 5;
maxX = 250;
maxY = 250;
createEmptyMovieClip("line", ++depth);
line.lineStyle(0);
line.onMouseDown = function() {
this.moveTo(_xmouse, _ymouse);
this.onMouseMove = function() {
**x = (_xmouse>maxX) ? maxX : ((_xmousemaxY) ? maxY : ((_ymouse