Im developing a flash game, and i would love to implement raining effect. Here's my progress on rain so far: http://www.squ4re.eu/Rain.html
The code is pretty simple; every raindrop is an object, when it hits the ground it places itself again at the top of the screen and adds splash animation.
But the problem is to click something BEHIND the rain. Lets say i have some selectable units at the battleground. In most cases an random raindrop interrupts selecting an object behind it. So here's my question: Is it possible in flash to create object "transparent" to mouse click, so i can click an object behind it? Or is there any other way to solve this problem?
Thank you in advance.
As #putvande mentioned, you could use mouseEnabled on every interactive object that should be disabled for mouse interaction. You also could create rainLayer and disable it for mouse interaction:
myRainLayer.mouseEnabled = false;
myRainLayer.mouseChildren = false;
mouseChildren - determines whether or not the children of the object are mouse, or user input device, enabled. If an object is enabled, a user can interact with it by using a mouse or user input device. The default is true.
Also consider to use display objects that don't inherit from InteractiveObject, like Bitmap, Shape and Video
Related
My problem is really simple
I´ve an artifact with a mouse inside. When you use it it simulates moving the mouse cursor indefinitely to the right.
Of course when i run my project at some point the mouse will reach the right side of the movieclip and the Mouse_Move event wont work anymore
I need a way make my actionscript to recongnise mouse movement even if im out of bounds
(It´s a mobile aplication so using full screen wont work)
In other words i need a Mouse-Motion Listener!
Though it is not possible to track mouse movements outside of flash with only ActionScript, you could capture the mouse position with javascript in the browser and pass it to your SWF.
See this blog as an example. http://www.nelsond8.com/?p=515
You cannot track the mouse position or actions when it moves outside of the stage.
You can however track when the mouse actually leaves the stage using Event.MOUSE_LEAVE:
function mouseLeave(e:Event):void
{
trace("Mouse left the stage.");
}
stage.addEventListener(Event.MOUSE_LEAVE, mouseLeave);
From here you can decide what the most appropriate course of action will be for your application - adding some 'pause' functionality is pretty common.
Tip: MouseEvent.MOUSE_MOVE is what you should use to detect when the mouse re-enters the stage.
I've got a pure AS3 (no Flex) project that uses Flare to display and interact with a data visualization. I just implemented some panning behavior, so you can click and drag the visualization around, and now I'd like to give the user a visual indicator that this is possible, by switching the arrow cursor with a nice grabby-looking hand icon.
The user can click and drag at any time except when the mouse is over a clickable node (at which time the cursor swaps to a pointer - this behavior is already in place).
So...
1) Do I need to create my own custom bitmap/sprite or is there a palette of built-in cursors I can use? (I'm not using Flex.)
2) Is there a way to simply replace the default arrow with the pan cursor project-wide, or do I need to attach the swapping to mouse events on display objects? Can I use the stage object to make this behavior apply everywhere?
3) How do I perform the swap? Do I use the Cursor object directly or do I need to get involved with the CursorManager?
Any guidance, pseudo-code, or words of wisdom is greatly appreciated!
I don't think there's a CursorManger in flash, only flex. The way i'm doing is with a custom class which hides the cursor and drags the customized cursor at mouse_move. You have to set it to mouseChildren=false, otherwise will flickr or the buttons will not be clickable. One problem i found is with custom contextual menus. Try this link http://abrahamyan.com/2009/03/23/as3-cursormanager/
A few things I learned (all pretty newby, really). Firstly, there are some built-in cursor options you can set by setting Mouse.cursor to any of the options of MouseCursor.TYPE. The Mouse object is a singleton available app-wide, so anywhere you change it in your code, the change persists until another change is triggered.
For my simple case, I did this:
//on init, start with the "hand"
Mouse.cursor = MouseCursor.HAND;
//on clickable items, change to "pointer", then back to "hand"
myClickableNode.addEventListener(MouseEvent.ROLL_OVER, function(evt:Event):void {
Mouse.cursor = MouseCursor.BUTTON;
});
myClickableNode.addEventListener(MouseEvent.ROLL_OUT, function(evt:Event):void {
Mouse.cursor = MouseCursor.HAND;
});
The result is you always have the "hand" until you rollover something clickable, then you get the "pointer".
I want to create a dialog or alert box, where a DisplayObject would take and force the focus, until an okay button or something releases the lock. thanks.
The easy way to do this is to make your "dialog" as big as the stage, with a whacking great transparent area around the dialog itself.
The transparent area can listen for any mouse clicks, and just swallow them (which will prevent them being picked up by stuff further back in the display list).
To show the alert, just stick it on top of everything else, When the user closes it, take it away again.
If you are using flex and actionscript, simply use a SkinnablePopUpContainer
var alt:CustomPopUp = new CustomPopUp();
alt.open(this,true) //the second variable is for modal, which will disable view
this.enabled = false; //this will grey out the parent view and provide visual focus to your popup.
To do this, you will need to disable access to all objects under your 'alert' DisplayObject. There are multiple ways of doing this, here 2 I can think off:
Loop through the display list and disable any display objects under your alert depth wise.
Cheat it with a blocker. When you display your alert, display another clip (could have alpha set to 0 ) that blocks the user from hovering/clicking objects. The blocker might need a bit of setup( buttonMode = true, useHandCursor = false, etc. )
This 'modal' behavior has been around for some so there might be no need to reinvent the wheel, depending of your current setup.
If you're using the Flex framework, you've got the functionality in, for Flash you can use the Alert Manager from the Yahoo! Flash Astra Components:
Goodluck,
I'm creating a DDR-like game for an assignment and my keyboard seems to respond and trace it, but only if I press on the screen with the mouse first.
How can I get rid of that and just have it respond right away?
right_mc is the arrow that's moving
ArrowRight_mc is the arrow at the top
perfect_mc should pop up briefly
and so should a glowing arrow where it hits.
Here is what I have so far:
if(rightDown){
trace("right arrow");
if(right_mc){
if(right_mc.y >= ArrowRight_mc.y){
perfect_mc.visible = true;
glowRight_mc.visible = true;
}
}
}
This has been a long standing issue for Flash developers. Flash needs keyboard focus before it can detect keyboard events.
The problem is that the browser does not give focus to the SWF until the user clicks somewhere inside the SWF. This does make sense though. I don't want the web page I am on to lose focus just because there is a flash movie embedded somewhere. This is a security feature, to stop things like Flash banner ads being silent key loggers. However there are some instances that it makes sense to force the focus e.g. a Flash game where its the only thing on the HTML page.
Usually the best thing to do is have start menu screen with a "play" button. This forces the user to click on the SWF without even knowing about this "focus issue".
There is more info at the Adobe Technote - Giving keyboard focus to an embedded Flash movie.
***EDIT****
Whether the Flash has focus or not, only affects keyboard events. It will not affect code from running, movieclips from playing, or sounds/video from playing.
The issue here is that the embedded SWF file does not have focus when the screen first loads. You can assign focus to it using JavaScript but in my experience, this does not always work 100% of the time because of variations in the way browsers interpret JS. What a lot of people do is have a big START button following the load of the game so that players have to click on the SWF to begin playing. Some sites, even use JS to detect when the game has lost focus and will pause the game and alert the user.
I suppose I haven't exactly answered your question because I'm not that great at JavaScript but I hope this points you in the right direction.
In response to your comment...
I'm unclear on something. If you have to click to start the song then you've already clicked on the SWF and you should be getting keyboard events, right? So if you're having to click to start then click again, maybe you need to make sure your mouse listener is at the root of your display list.
// in your document class / main AS file...
this.stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
Or perhaps you need to poll for input during an EnterFrame loop rather than listen for key events.
I know what you mean. You have a specific object on the stage that needs focus before keyboard events will trigger. I'm having the same issues with a game here. A sprite needs to move with the keyboard arrows but the container needs focus so it will respond. I'm just setting the object I want to move to be tabEnabled as my requirements are only for accessibility purposes so tabbing to the object first will give it keyboard control.
Is there something like the java 'glasspane' in as3?
The glass pane is useful when you want to be able to catch events or paint over an area that already contains one or more components. For example, you can deactivate mouse events for a multi-component region by having the glass pane intercept the events. Or you can display an image over multiple components using the glass pane. http://java.sun.com/docs/books/tutorial/uiswing/components/rootpane.html
Why do this? While some animations are underway in flash, I want to prevent any mouseevents from firing. I could remove all listeners systematically, then re-add them after the animation, but if there is something like a glasspane, it might be an easier way to achieve the same effect.
My current thinking is to:
add a sprite to the stage
stretch to width and height of the stage,
give the sprite the highest z-order,
grab all events on this sprite, and stop their propagation?
if you set
enabled=false;
mouseChildren=false;
on to the top most DisplayObject it should disable all mouse events for your app. I've used it and it works a treat.
For a more specific approach, e.g. only block clicks but let mouse down etc. through I use this approach. It uses a 'clickBlocker' stage event handler during capture phase, stopping propagation to any other object.
public function blockClicks():void{
if(!stage) return;
stage.addEventListener(MouseEvent.CLICK, clickBlocker, true); //useCapture!
}
private function clickBlocker(event:MouseEvent):void{
trace("Me (the stage) gets the "+event.type+" first, and I block it #"+event.stageX+"/"+event.stageY);
event.stopImmediatePropagation();
}