Here is a scenario on which i done a lot of research on google but hopeless. the scenario is, i am going to develop a 2D game in which i want to use multiple backgrounds and i want to translate them as they are moving forward, it must look like one background is near and translating/moving fast and the other background is a bit far and translating/moving a little slow. the nearer background have almost full intensity and the farer background have a bit low intensity. you can say they have different transparency levels. the question is, how can i get this task done or is this possible to use multiple backgrounds.
any suggestion will be appreciated.
as an example, see the image of BADLAND game bellow.
I think as far as I got your question you want to put two or more images one over another. I mean if you are trying to overlap the multiple backgrounds and asking for it yes it can be done easily.
What you need to do is to use the FrameLayout. as
"FrameLayout represents a simple layout for the user interface of
Android applications. It is usually used for displaying single Views
at a specific area on the screen or overlapping its child views."
and then you can implements the animations on them and translate them You can find different types of translation over them.
Here is all about using the frame layout frameLayout1 framelayout2 and for animations and translation here are links. link , link2 , link3
I am writing a game in Java but have run in to an issue. I need to blur certain entitities within the game in order to create the right look. However, a lot of these objects are circular and so I am having issues blurring them properly.
Here is an example of the kind of thing I'm aiming for:
Currently, I'm using a box blur but just can't think of a way to achieve this sort of effect.
If somebody could give me a nudge in the direction I need to be looking that would be great.
Thanks.
Will
I'm developer of game Space STG II for Android phones... and I want to add to this game new option. To do this I need to know how to do movable screen. I want to do a battle like in Heroes Might & Magic, but in mobile phone screen is small... I don't know how developers show only a part on screen of all things on map. I want to make a small map in corner which show which part of map is shown on screen.
I can't find it :/ I spend 2 days and I found only 2d tile moving, but I need smooth moves. Please help. I will give activation codes for Space STG II for help.
This question is rather vague, and so in return I can't reply with more than a vague answer. Adding this new feature to your game is very specific to how you wrote your game to begin with. If you used bad coding habits, it's going to be very difficult. From what I gather, you are trying to add a mini-map in the corner like many games have. If your model of the game and view are intertwined, you're going to have issues doing this. If you used a design pattern like Model-View-Controller http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller it would be easier to add another "view" of your model and implement it as the minimap. Sorry for the vague answer, but I don't have much else to work with seeing as you have a specific question with not many details of how your game is written.
If you're writing OpenGL code, its extremely easy- just draw the scene and move the camera to look at whatever location you want. Scrolling means moving the camera and will be smooth. Note that a tile approach works fine with OpenGL
If you're using some other 2D API, it might not be that simple. You could try to look up algorithms yourself for how people implement scrolling in widgets (think- how do people make a listview?). You'll come up with something.
Edit: If you do accept this answer, I don't really want your activation codes. Thanks anyway.
I've been attempting to develop a means of synthesizing human-like mouse movement in an application of mine for the past few weeks. At the start I used simple techniques like polynomial and spline interpolation, however even with a little noise the result still failed to appear sufficiently human-like.
In an effort to remedy this issue, I've been researching into ways of applying machine learning algorithms on real human mouse movement biometrics in order to synthesize mouse movements by learning from recorded real human ones. Users would be compiling a profile of recorded movements that would trainh= the program for synthesis purposes.
I've been searching for a few weeks and read several articles on application of inverse biometrics in generating mouse dynamics, such as Inverse Biometrics for Mouse Dynamics; they tend to focus, however, on generating realistic time from randomly-generated dynamics, while I was hoping to generate a path from specifically A to B. Plus, I still need to actually need to come up with a path, not just a few dynamics measured from one.
Does anyone have a few pointers to help a noob?
Currently, testing is done by recording movements and having I and several other developers watch the playback. Ideally the movement will be able to trick both an automatic biometric classifier, as well as a real, live, breathing Homo sapien, too.
Fitt's law gives a very good estimation of the time needed to position the mouse pointer. In the derivation section there is a simple explanation I think you could use this as one of the basic building blocks of your app. Start with big movements, put some inacurracy both in the direction and the length of the movement, then do a smaller correction movement and so on...
First, i guess you record human mouse movements from A to B. Because otherwise, trying to synthesize a model for such movement does not seem possible to me.
Second, how about measuring the deviations from the "direct" path, maybe in relation to time. I actually suspect that movements look different for different angles, path lengths etc., but maybe you can try a normalized model first, that you just stretch (in space and time) and rotate like you need it.
Third, the learning. The easiest thing would be to just have a collection of real moves (in the form i discussed above), and sample from that collection. Evaluate how that looks like. If you really want a probabilistic model, then you have to evaluate what kind of models fit. is it enough to blurr the direct path with gaussian noise whose parameters you learn from your training set? Or some (sin-)wavy deviation? Or seperate models for "getting near the button" and "final corrections". Fitts law might be useful for evaluation.
This question reminded me of a website I knew about years ago, so I visited it and found this in-depth discussion on the topic.
The timing is so similar as to make me think this question is related in some way. In fact, someone in the thread linked to the same article you did. If it's not related, well, there's a link to a lot of people discussing exactly what you're thinking about.
I don't think the problem is all that well defined. There is a important notion not mentioned so far, which is context. The mouse movement on my screen when Chrome has focus is massively different that the motion when Vim has focus.
The way a mouse moves varies based on the type of the device, the type of action, the UI elements involved, familiarity with the UI, the speed at which the user is attempting to complete their task, the skill of the user, initial failure of the user (eg miss-clicks), the user's emotional state (as well as many other factors). Do you plan on creating several pathing strategies to correspond to different contexts? Also how well do you know the algorithm you are trying to fool? I assume not extensively or you would simply program directly against that algorithm.
If a human is looking at the pathing, they might be able to identify the state associated with a pathing strategy and may be more inclined to be fooled if they identify it as a human state (eg user is rushing, miss-clicks, quickly closes a resulting popup, tries again slower). UI comes into play with not just size and position. I often quickly point to a toolbar, then slide across the options until I get to my target. Another example is that I typically pause on menu items while I am scanning for my target or hover over text I am reading. Are you attempting to emulate human behavior or just their mouse movements (because I think they are joined at the hip)?
Are you wanting to simulate human-like mouse movement because you are doing real-time online training for your game? If your training sequences are static, just record your mouse movements and play a mouse clicking sound effect whenever you click the mouse button. No mouse movement is going to feel "real enough" to you more than your own.
Personally, I feel experts in software move their mice too quickly in training videos. I prefer an approach taken by screencast video software I've seen that always moves the mouse linearly from point A --> B. The trick was, every mouse move made in the video always took the same amount of time regardless of distance, say 3/4 of a second and then followed by a mouse click sound effect.
I believe they moved the mouse in this way because then the viewer could anticipate the landing area of the mouse by the direction and velocity the mouse moved at the start. In a training situation, I suppose that regular movements like this are gentler on the eye and perhaps easier to retain/recall.
Have you considered adding mouse tracking to your application so you essentially record how the user moves the mouse and then analyze the recordings?
I have not looked into this recently but I believe that a MouseListener in a Swing application get the information you need.
I want to build up a GUI area where users can click randomly. Then I want to retrieve the cartesian (x,y) coordinates of those points where the user clicked. Which GUI component is suitable for my task. Also, I want to have any point as big as a usual dot (maybe 3 pixels or more - does this depend on resolution? And if I change the screen resolution of the monitor during the program execution, does the coordinate change?)
I usually work in web programming and I am totally novice in this area. Any pointers to good background reading would help greatly.
Thanks.
http://download.oracle.com/javase/tutorial/uiswing/events/mouselistener.html
Is this what you're searching for?
as for changing resolution,
I believe you need a listener which changes/updates the size, though I'm pretty much not familiar with that, sorry.