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  • How do I detect if sprite should be going up or down?

    - by Geore Shg
    I use the following code to detect if a sprite should be going up or down: If (pos.Y + 100) >= Sprite.BottomY Then Going_up = True pos.Y = Sprite.BottomY - 130 End If If pos.Y <= Sprite.TopY Then Going_up = False pos.Y = Sprite.TopY - 1 Vel.Y = 3 End If Then my response code: If Going_up Then Vel.Y -= CSng(gameTime.ElapsedGameTime.TotalMilliseconds / 40) pos.Y -= Vel.Y Else Vel.Y += CSng(gameTime.ElapsedGameTime.TotalMilliseconds / 40) pos.Y += Vel.Y End If Sprite.velocity = Vel Sprite.position = pos But it's pretty terrible. It only works when the sprite starts at the top, and when I want to change the BottomY and TopY, it just starts glitching. What is a better to detect if the sprite should be going up or down?

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  • How do you learn a class hierarchy quickly?

    - by rsteckly
    Hi, Something I don't enjoy about programming is learning a new API. For example, right now I'm trying to learn Windows Identity Foundation. Its frustrating because I'm going to spend the bulk of the time learning how a few classes work and actually only write several lines of code. In .NET, there are so many types that I seem to spend more time hunting around in msdn for a class than writing code. It also interrupts my workflow while I'm working because I have to type a little bit than look something up. Obviously, I don't have to do this for the basic classes. Whenever new things come though there is definitely some looking up to do. Then I often don't reuse that class enough to really review it or bring it into action. I'm wondering if anybody out there has a found a way to memorize (or look up more efficiently) these object model hierarchies?

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  • Changes to myApp.js files are reverted back to normal when the project is build - Cocos2dx

    - by Mansoor
    I am trying to do some changes to my myApp.js file of coco2dx project for android in eclipse but I am not able to do it. I am actually trying to change the default background image of my app. But when I run my project all the changes goes back to before values For Eg: This is the default line wer we are setting our background image this.sprite = cc.Sprite.create("res/HelloWorld.png"); I am changing it to the following line: this.sprite = cc.Sprite.create("res/CloseNormal.png"); But when I run my project CloseNormal.png goes back to HelloWorld.png I am using: OS: Win7 Cocos2d Ver: cocos2dx 2.2.2 Why is this happening. Can anybody help me?

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  • Network via FireWire cable

    - by JIa3ep
    My notebook works under Windows XP and desktop computer under Vista. Seems to be that Windows Vista has no native support for creating network via FireWire cable. Is there 3rd-party solution?

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  • ASUS P8B75-M Support Drivers incompatible with Win Server 2003

    - by Killrawr
    Hey I've just installed Windows Server 2003 Enterprise onto a newly built PC with this motherboard, but when I try to install the CDROM Support files it reports with an alert that says "Support files incompatible with WIN... blah blah" (Basically they seem to be only compatible with win7). Should I be installing Windows Server 2012 for these drivers? or are there drivers that are compatible with the Server 2003 Operating System?

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  • How can I detect hard drive failures?

    - by Francis
    I am in charge of a large number of Windows servers. Recently, many have been reporting hard drive errors with event codes 11 and 55. CHKDSK indicates that the drives are fine most of the time. What other diagnostic tools could I use to more accurately detect hard drive failures? Could these Windows events be false positives? I have already evaluated S.M.A.R.T., and it seems to have significant sensitivity and specificity issues.

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  • How to give parallax backgrounds more depth

    - by user28015
    I have 3 tiled images of some sort of galaxy/space in the background of a 2D Game: The first one has an alpha of 100%, the second an alpha of 80% and the last one has an alpha of 60%. I scroll the the one in the background slower than the other ones of course. classic parallax. In the foreground I have some particles flying towards the player to simulate some dust / stars flying by. (I know that stars don't fly by, but I think we all have seen this in a lot of games). But I can't quite achieve the depth effect I am looking for. I want it to look "deeper". I did read something about using blending modes for the backgrounds, but that would require to render them as objects right? So the question is: What is a good technique to do a scrolling parallax background in GameMaker?

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  • Where can I download VMWare Tools for 1.x?

    - by matnagel
    Plsease can you show me where I can download the latest Version of VMWare Tools for the following Client: Server is Windows 2003 32 bit with VMWare Server 1.x Client is Windows 2003 32 bit Please can you point me to a download page. If the name is not "VmWare Tools" please also help me to choose the right file. (Yes, I know 1.x is old. We will upgrade later soon but not now.) Thank you.

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  • Can't install ubuntu 12.04 64 bit and 32 bit

    - by Mark
    I downloaded The Ubuntu 12.04 64 bit, i burned it from a cd and when I tried to install it i only and get a black screen and saying Peter Arvin et al could not find kermel image I thought there's a problem with the file so i downloaded it again and install it then i always get the same message. I tried also 32 bit and i always get the same error. I tried also installing it from a usb and i always get the same. So i just downloaded the WUBI and works so fine to my computer. I'm using Sony Vaio E Series with a 32 bit system and 500 GB hard Disk Drive.

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  • How to create a language these days?

    - by Mike
    I need to get around to writing that programming language I've been meaning to write. How do you kids do it these days? I've been out of the loop for over a decade; are you doing it any differently now than we did back in the pre-internet, pre-windows days? You know, back when "real" coders coded in C, used the command line, and quibbled over which shell was superior? Just to clarify, I mean, not how do you DESIGN a language (that I can figure out fairly easily) but how do you build the compiler and standard libraries and so forth? What tools do you kids use these days?

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  • Make Sprite Jump Upon a Platform

    - by Geore Shg
    I have been struggling to make a game like Doodle Jump where the sprite jumps on a platform. So how do you make a sprite jump upon platforms in XNA? Th platforms are represented by a list of positions like Public platformList As List(Of Vector2) This is the collision detection under update() Dim mainSpriteRect As Rectangle = New Rectangle(CInt(mainSprite.Position.X), CInt(mainSprite.Position.Y), mainSprite.texture.Width, mainSprite.texture.Height) 'a node is simply a class with the texture and position' For Each _node As Node In _gameMap.nodeList Dim blockRect As Rectangle = New Rectangle(CInt(_node.Position.X), CInt(_node.Position.Y), _BlocksTexture.Width, _BlocksTexture.Height) If mainSpriteRect.Intersects(blockRect) Then 'what should I do here? For example velocity and position?' End If If (_node.Position.Y > 800) Then nodeList.Remove(_node) End If Next

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  • How do I full-screen my CMD?

    - by Codemonkey
    I work a LOT in the windows command line. Unlike other windows, it doesn't maximize - it just goes a big as it can depending on the buffer size. Is there any way I can get the CMD to act like the PuTTY console, flowing with the resize? NOTE: The answer doesn't have to be a tweak to the CMD. If there's a PuTTY-like program out there that will work between me and the command line I'm happy with that - I just want a proper window to work in

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  • Open Command Window here in Explorer

    - by JohnM2
    How to add an icon to Windows Explorer toolbar (in Windows XP), that once clicked, opens a command window in selected directory? In other words, I am looking for MS Powertoys"Open Command Window here" like tool but instead of context menu, for Explorer toolbar.

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  • Different Results of Scanning Wireless Networks

    - by Tim
    Hi, I found that under Ubuntu, WICD and command "/sbin/iwlist wlan0 scan" give a little different list of wireless networks. Windows 7 also gives a slightly different list. For example, there is one shown in WICD but not in the command nor in Windows 7. I wonder why? How to get a complete list of wireless networks? Thanks and regards!

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  • Program LED with just USB port

    - by LifeH2O
    I want to control LED with C# using only USB port. I don't want to attach any other device with USB. I just want to attach LED directly to USB port pins and program it (blink etc). How can i do that? I am new to hardware programming and it will be my first program. EDIT: I can do it already (blink LED) using printer port by attaching one led pin to data pin and other to ground. How can i do the same with USB port? My motherboard does not have a printer port. USB is the only option.

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  • How to connect Nokia Lumia 520 to Ubuntu 12.04

    - by pavankumar
    I have done the following steps: sudo add-apt-repository ppa:langdalepl/gvfs-mtp sudo apt-get update and updated some packages from update manager. After doing above steps I am able to see lumia phone name in file system. But when I try to mount device I am getting following errors: Unable to mount RM-914|Nokia Lumia 520 Unable to open MTP device '[usb:001,010]' Is there any way to solve these problem?

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  • Install boot loader with no operating system on hard drive

    - by Jeet Robert
    I am trying to reset — or rather, install — a boot loader on my hard drive. I initially had a Linux distro installed, which I completely wiped out. Now, when I try to install Windows 7 from my USB, my machine says Missing operating System And when I don't boot with USB, it says "bootmgr is missing" So now I am wondering, how I can install a boot loader, so I can install Windows 7?

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  • pykaraoke on xp pro

    - by user170175
    i have dell laptops they all have xp-pro on them.what is happening is i have pykaraoke 7.1 on a disk and installed it on a couple of laptops and it works great.the other laptops say pykaraoke bad configeration,reinstall may fix this.i do that and i8t still doesnt work says the same thing.i even copyed the program from a working laptop and that didnt work.it doesnt make cence that it works on some but not the others.

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  • Pure functional bottom up tree algorithm

    - by Axel Gneiting
    Say I wanted to write an algorithm working on an immutable tree data structure that has a list of leaves as its input. It needs to return a new tree with changes made to the old tree going upwards from those leaves. My problem is that there seems to be no way to do this purely functional without reconstructing the entire tree checking at leaves if they are in the list, because you always need to return a complete new tree as the result of an operation and you can't mutate the existing tree. Is this a basic problem in functional programming that only can be avoided by using a better suited algorithm or am I missing something?

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  • Win32: No Window Appears

    - by SoulBeaver
    I was programming the example code from Frank Luna's book "Introduction to 3D Game Programming with DirectX 10". The code is the first Win32 example in the Appendix A: Windows Programming section. Right now, the program compiles under both VC++ 2008/2010, but no window appears, although the debug session has started and I have to forcefully close it. I have no idea where it is, I'm not using Win32 Console mode, I have closed all other windows and no other IDE or session of VC++ is running. Any idea why this might be happening? PS: I have also checked my Processes. It is indeed running.

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  • Grizzly server - works with IP, but not with domain name

    - by Hitchhiker
    I'm hosting a grizzly web service on a Windows 7 Pro machine (embedded in a regular Java process), and it is binding to http://my-domain-name. When trying to hit the service from another machine, requests to http://my-domain-name fail (fiddler shows error code 502), but requests to http://my-ip work. When the service runs on a Windows Server 2008 machine, this doesn't happen (both requests succeed). What could be the issue?

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  • Drawing a texture line between two vectors in XNA WP7

    - by Krav
    I want to create a simple graph maker in WP7. The goal is to draw a texture line between two vectors what the user defines with touch. I already made the rotation, and it is working, but not correctly, because it doesn't calculate the line's texture height, and because of that, there are too many overlapping textures. So it does draw the line, but too many of them. How could I calculate it correctly? Here is the code: public void DrawLine(Vector2 st,Vector2 dest,NodeUnit EdgeParent,NodeUnit EdgeChild) { float d = Vector2.Distance(st, dest); float rotate = (float)(Math.Atan2(st.Y - dest.Y, st.X - dest.X)); direction = new Vector2(((dest.X - st.X) / (float)d), (dest.Y - st.Y) / (float)d); Vector2 _pos = st; World.TheHive.Add(new LineHiveMind(linetexture, _pos, rotate, EdgeParent, EdgeChild,new List<LineUnit>())); for (int i = 0; i < d; i++) { World.TheHive.Last()._lines.Add(new LineUnit(linetexture, _pos, rotate, EdgeParent, EdgeChild)); _pos += direction; } } d is for the Distance of the st (Starting node) and dest (Destination node) rotate is for rotation direction calculates the direction between the starting and the destination node _pos is for starting position changing Thanks for any suggestions/help!

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