So I've been struggling with this for a lot of time, I'll keep it short.
I'm working on my first P5JS game, and it's like Mario, but instead of horizontal endless runner, its vertical. So, I added an image as the background like this in setup function:
bg=createSprite(300,300);
and in the draw function:
background("black");
bg.addImage(bgImage);
bg.velocityY=5;
The velocityY constantly makes the image move downwards, but because it is an image, after a while the black background comes up again.
Like so:(the road is the image and the black color is the background.)
So how do I make it so that after the image has gone away, it comes back in, and it seems like it never even left?
Well, you could have two images, whenever one is fully invisible (img.y < height)
just teleport it back up to the top img.y = img2.y - img.height.
Also i believe that's the math to do so, but i'm not completely sure about it.
Also there might be a function for tiling in the library.
Related
I'm stuck with the menu below. All the website needs to be in HTML.
http://hpics.li/740c57f
WHAT: I want to have an hover image for all the different parts when the mouse go on it. (event/brand/website/print/UI/VIDEO)
PROBLEM: The images are overlapping and the mouseover start when i'm on the transparency of the png.
SOLUTIONS I TRIED: Imagemap to detect the zone and then put javascript code inside the AREA. doesn't work.
Imagemap to detect the zone, put an id in the AREA and use a separated JQUERY with .hover(function(). doesn't work.
Use z-index: impossible because there will be always an image that will hide the one under.
QUESTION: If I can't use ImapeMAP to select my zone and use CSS or JQUERY, how can I do ?
Thank you so much for your help!
Might be too late but the exact case can actually be solved by a class I wrote around 3 months ago. It allows you to check whether you're on a transparent area or not and also check for other elements behind the transparent area, this allows to overlap multiple transparent images and correctly jump from one image to another at the correct point.
http://www.cw-internetdienste.de/pixelselection/
Im trying to get something like this --> http://jsfiddle.net/NhvAZ/10/ but with image inside circle.
I did exactly the same way like on example above, but it doesn't work with image. Here is my code: http://jsfiddle.net/uyEaq/
Someone could tell me what I'm doing wrong?
Well that was really confusing, but looking at some of the previous iterations of the fiddles you've given I think I know what you want.
You want an ever increasing pie slice of an image to appear, right? Clipping can do that for you. Here's an example using some of your code:
http://jsfiddle.net/QMZg2/
So I know how to shade an image. And I know how to blit a rectangular section of an image. But what about, say, a triangle? Or a trapezoid? (e.g. http://i.imgur.com/Gtwhs.png)
A minute after I asked this, I figured out how to shade, at least. Isn't that always the way?
Anyway, it basically comes down to something as simple as:
surface.blit(image, pos, area)
pygame.draw.polygon(surface, (0,0,0,128), pointlist, 0)
where 128 is whatever alpha value you want and pointlist is a list of the vertices around the section you want.
Since now, in the design of one of the websites I work, I've been using a graphic to decorate the header section that consists in a diagonal division white in the lower side and transparent in the upper side. The result is this:
If I change upper color, as the image is transparent in its upper area the effect seems perfect:
Now, I need to allow users to change page background and that's the problem:
Background changes to red, but the image I used to decorate the header doesn't change.
Is there any way to allow users to change the background without ruin the header decoration?
Note that store a copies of the decoration imagen in different colors is not an option due I allow users to choose any 24-bit color. Also, to change the image in real time like explained here isn't an option due multiple users may access the same file.
You could try changing the image in realtime using data URIs: https://developer.mozilla.org/en/data_URIs
With a data URI, you can do something like the following: <img src="data:image/png;base64,SGVsbG8sIFdvcmxkIQ%3D%3D" />. The image can be changed dynamically in JS by generating a new image and setting the src attribute to the new data URI.
You will need to find a suitable format for generating images in JS though. I have used pnglib.js before, and it works, but it might be slower than you'd prefer. You might need to test some different libraries and image formats to see which can be generated quickly. Also, make the image as small as possible - should be only the area with the diagonal split, the area to the right can be done with a div instead.
Alternatively, you could generate a unique image server-side via a script. Make a script that takes a GET parameter for the background color and generates the appropriate image (for PHP, you can use GD or IMagick). Advantage is that the server may generate the image and send it to the client quicker than the client could generate it in JS.
Add the following to the div with the background image:
position: absolute;
top: 0px;
right: 0px;
The problem currently is that the background cannot overlap your div with the background image. Adding the position: absolute gives your div some kind of "ghost box" model, thus allowing the background of the body to overlap it.
P.S.: you can also play with z-index if you want to.
i have some variables on PHP who gain values from 0 to 100. I want to develop a simple graph system that draw a horizontal rectangle given the number (0, 1 , 50 and soo). Also i want to add some gradient to the background, doing this in php is complicated and i dont want more load in my server, so i know this is possible in css, but im not a css developer. So if any body can help me with this. In this page (http://www.answerbag.com/) you can se how i want the rectangle, in the results of the pool section in the middle of the above page.
that's very simple since you know the width. Since you probably want the full spectrum of the gradient to show, you probably want to resize the gradient image by using a css #score1 { width: 30px } on that <img id="score1" src="blue_gradient.png"> Then later on, you can use one of the many rounder corner methods to add the round corners to it.