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  • Help with C# program design implementation: multiple array of lists or a better way?

    - by Bob
    I'm creating a 2D tile-based RPG in XNA and am in the initial design phase. I was thinking of how I want my tile engine to work and came up with a rough sketch. Basically I want a grid of tiles, but at each tile location I want to be able to add more than one tile and have an offset. I'd like this so that I could do something like add individual trees on the world map to give more flair. Or set bottles on a bar in some town without having to draw a bunch of different bar tiles with varying bottles. But maybe my reach is greater than my grasp. I went to implement the idea and had something like this in my Map object: List<Tile>[,] Grid; But then I thought about it. Let's say I had a world map of 200x200, which would actually be pretty small as far as RPGs go. That would amount to 40,000 Lists. To my mind I think there has to be a better way. Now this IS pre-mature optimization. I don't know if the way I happen to design my maps and game will be able to handle this, but it seems needlessly inefficient and something that could creep up if my game gets more complex. One idea I have is to make the offset and the multiple tiles optional so that I'm only paying for them when needed. But I'm not sure how I'd do this. A multiple array of objects? object[,] Grid; So here's my criteria: A 2D grid of tile locations Each tile location has a minimum of 1 tile, but can optionally have more Each extra tile can optionally have an x and y offset for pinpoint placement Can anyone help with some ideas for implementing such a design (don't need it done for me, just ideas) while keeping memory usage to a minimum? If you need more background here's roughly what my Map and Tile objects amount to: public struct Map { public Texture2D Texture; public List<Rectangle> Sources; //Source Rectangles for where in Texture to get the sprite public List<Tile>[,] Grid; } public struct Tile { public int Index; //Where in Sources to find the source Rectangle public int X, Y; //Optional offsets }

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  • vim plugin to show current Perl subroutine

    - by Andrew
    I'm trying to make a vim plugin that will split the window on load and simulate a info bar at the top of my terminal. I've got it sorta working but I think I've either reached limits of my knowledge of vim syntax or there's a logic problem in my code. The desired effect would be to do a reverse search for any declaration of a Perl subroutine form my current location in the active buffer and display the line in the top buffer. I'm also trying to make it skip that buffer when I switch buffers with <C-R>. My attempt at that so far can be seen in the mess of nested if statements. Anyway, here's the code. I would greatly appreciate feedback from anyone. (pastebin pastebin.com/8cuMPn1Q) let s:current_function_bufname = 'Current\ Function\/Subroutine' function! s:get_current_function_name(no_echo) let lnum = line(".") let col = col(".") if a:no_echo let s:current_function_name = getline(search("^[^s]sub .$", 'bW')) else echohl ModeMsg echo getline(search("^[^s]sub .$", 'bW')) "echo getline(search("^[^ \t#/]\{2}.[^:]\s$", 'bW')) echohl None endif endfunction let s:previous_winbufnr = 1 let s:current_function_name = '' let s:current_function_buffer_created = 0 let s:current_function_bufnr = 2 function! s:show_current_function() let total_buffers = winnr('$') let current_winbufnr = winnr() if s:previous_winbufnr != current_winbufnr if bufname(current_winbufnr) == s:current_function_bufname if s:previous_winbufnr < current_winbufnr let i = current_winbufnr + 1 if i total_buffers let i = 1 endif if i == s:current_function_bufnr let i = i + 1 endif if i total buffers let i = 1 endif exec i.'wincmd w' else let i = current_winbufnr - 1 if i < 1 let i = total_buffers endif if i == s:current_function_bufnr let i = i - 1 endif if i < 1 let i = total_buffers endif try exec i.'wincmd w' finally exec total_buffers.'wincmd w' endtry endif endif let s:previous_winbufnr = current_winbufnr return 1 endif if s:current_function_buffer_created == 0 exec 'top 1 split '.s:current_function_bufname call s:set_as_scratch_buffer() let s:current_function_buffer_created = 1 let s:current_function_bufnr = winnr() endif call s:activate_buffer_by_name(s:current_function_bufname) setlocal modifiable call s:get_current_function_name(1) call setline(1, s:current_function_name) setlocal nomodifiable call s:activate_buffer_by_name(bufname(current_winbufnr)) endfunction function! s:set_as_scratch_buffer() setlocal noswapfile setlocal nomodifiable setlocal bufhidden=delete setlocal buftype=nofile setlocal nobuflisted setlocal nonumber setlocal nowrap setlocal cursorline endfunction function! s:activate_buffer_by_name(name) for i in range(1, winnr('$')) let name = bufname(winbufnr(i)) let full_name = fnamemodify(bufname(winbufnr(i)), ':p') if name == a:name || full_name == a:name exec i.'wincmd w' return 1 endif endfor return 0 endfunction set laststatus=2 autocmd! CursorMoved,CursorMovedI,BufWinEnter * call s:show_current_function() (pastebin pastebin.com/8cuMPn1Q) similar to VIM: display custom reference bar on top of window and http://vim.wikia.com/wiki/Show_current_function_name_in_C_programs

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  • Easiest way to recursively find and replace?

    - by FarmBoy
    I want to recursively search through a directory of text files and replace every occurrence of foo within the files with bar. What is the easiest way to accomplish this? I imagine that grep would do the job in one line, but I can't seem to find an example of this. I'm working in OS X.

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  • jquery get attributes

    - by Mark
    I'm looking for a way to grab the custom attributes of a element with jquery. <span id='element' data-type='foo' data-sort='bar'></span> I'm looking to get: `["data-type", "data-sort"]` as an array. Anyone know how to do this? Thanks.

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  • Find last match with python regular expression

    - by SDD
    I wanto to match the last occurence of a simple pattern in a string, e.g. list = re.findall(r"\w+ AAAA \w+", "foo bar AAAA foo2 AAAA bar2) print "last match: ", list[len(list)-1] however, if the string is very long, a huge list of matches is generated. Is there a more direct way to match the second occurence of "AAAA" or should I use this workaround?

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  • Eclipse RCP Preferences Dialog Tree Size

    - by nerduban
    In my RCP application, I'm trying to use the Eclipse preferences dialog. I'm adding extensions to the "org.eclipse.ui.preferencePages" and preparing related IWorkbenchPreferencePage implementations. My preference page names are a bit long, so that they are not totally visible on the left side tree of the preferences dialog. Dragging the sash bar to the right increases the width of this tree, but it is resetted after the program is closed and reopened. Is it possible to increase the default width of this tree?

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  • Foreign key pointing to different tables

    - by Álvaro G. Vicario
    I'm implementing a table per subclass design I discussed in a previous question. It's a product database where products can have very different attributes depending on their type, but attributes are fixed for each type and types are not manageable at all. I have a master table that holds common attributes: product_type ============ product_type_id INT product_type_name VARCHAR E.g.: 1 'Magazine' 2 'Web site' product ======= product_id INT product_name VARCHAR product_type_id INT -> Foreign key to product_type.product_type_id valid_since DATETIME valid_to DATETIME E.g. 1 'Foo Magazine' 1 '1998-12-01' NULL 2 'Bar Weekly Review' 1 '2005-01-01' NULL 3 'E-commerce App' 2 '2009-10-15' NULL 4 'CMS' 2 '2010-02-01' NULL ... and one subtable for each product type: item_magazine ============= item_magazine_id INT title VARCHAR product_id INT -> Foreign key to product.product_id issue_number INT pages INT copies INT close_date DATETIME release_date DATETIME E.g. 1 'Foo Magazine Regular Issue' 1 89 52 150000 '2010-06-25' '2010-06-31' 2 'Foo Magazine Summer Special' 1 90 60 175000 '2010-07-25' '2010-07-31' 3 'Bar Weekly Review Regular Issue' 2 12 16 20000 '2010-06-01' '2010-06-02' item_web_site ============= item_web_site_id INT name VARCHAR product_id INT -> Foreign key to product.product_id bandwidth INT hits INT date_from DATETIME date_to DATETIME E.g. 1 'The Carpet Store' 3 10 90000 '2010-06-01' NULL 2 'Penauts R Us' 3 20 180000 '2010-08-01' NULL 3 'Springfield Cattle Fair' 4 15 150000 '2010-05-01' '2010-10-31' Now I want to add some fees that relate to one specific item. Since there are very little subtypes, it's feasible to do this: fee === fee_id INT fee_description VARCHAR item_magazine_id INT -> Foreign key to item_magazine.item_magazine_id item_web_site_id INT -> Foreign key to item_web_site.item_web_site_id net_price DECIMAL E.g.: 1 'Front cover' 2 NULL 1999.99 2 'Half page' 2 NULL 500.00 3 'Square banner' NULL 3 790.50 4 'Animation' NULL 3 2000.00 I have tight foreign keys to handle cascaded editions and I presume I can add a constraint so only one of the IDs is NOT NULL. However, my intuition suggests that it would be cleaner to get rid of the item_WHATEVER_id columns and keep a separate table: fee_to_item =========== fee_id INT -> Foreign key to fee.fee_id product_id INT -> Foreign key to product.product_id item_id INT -> ??? But I can't figure out how to create foreign keys on item_id since the source table varies depending on product_id. Should I stick to my original idea?

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  • Is it bad to explicitly compare against boolean constants e.g. if (b == false) in Java?

    - by polygenelubricants
    Is it bad to write: if (b == false) //... while (b != true) //... Is it always better to instead write: if (!b) //... while (!b) //... Presumably there is no difference in performance (or is there?), but how do you weigh the explicitness, the conciseness, the clarity, the readability, etc between the two? Note: the variable name b is just used as an example, ala foo and bar.

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  • forslash as the default path separator in windows?

    - by Meitham
    Since windows now accept the forslash "/" as a path separator in addition to its default backslash path separator, so that both c:\windows and c:/windows are valid paths (though the later is invalid in cygwin since backslash is escape char) Is there any chance we could set the forslash as the default path separator on windows (GUI), so that the address bar in windows will automatically use it? I heard its possible in a powershell session but anyone knows if it is also possible in a CMD session? Thanks M

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  • BitBucket Wiki: Create a heirarchy structure?

    - by Rosarch
    I want to create a hierarchy in my wiki like so: General FooPages Foo1 Foo2 Foo3 ODP Bar Baz I would like to create these pages, and use <<toc>> table of contents macros to organize them. How can I do that? Do I need to clone and edit the wiki on my own machine, or can I do that exclusively through the web interface?

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  • Apache mod_rewrite - prefer files over directories with pretty URLs

    - by Jesse
    I want to have pretty urls so http://www.domain.com/foo will return http://www.domain.com/foo.php The issue is that there is a directory that has the same name. I have another page at http://www.domain.com/foo/bar/baz and right now my server just returns the directory listing of foo when I request http://www.domain.com/foo Pseudocode: If the request plus ".php" is a file rewrite out the file instead of the directory Actual Code: RewriteEngine On RewriteBase / RewriteCond %{SCRIPT_FILENAME}\.php -f RewriteRule (.*) $1.php [NC,L]

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  • How to get right values from Views touch event

    - by Pinker
    I have a problem with implementing touch events on GLSurfaceView. Views size is 1280x696, because of android (tablet) status bar at bottom with soft keys, time etc.., (screen resolution is 1280x800), but OnTouchListener is receiving touch events with coords [646.0,739.0], and thus my gluunproject method fails to return correct values is there any way to return events that respect these boundaries? or how should I recalculate the position?

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  • C# Help For Adding Radio Button For MenuStrip.

    - by Gayan J
    Im a beginner for C# language.So i need a help from who genius from this scheme.i need to add a radio button for menu strip. i already change "clickonclick" property to "true".but i need a option like radio button selection. you can see it from windows calculator menu bar.(click View) how can i get to it via using menustrip peoperty.

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  • Problem in hiding scrollbar of webbrowser control

    - by Royson
    I have web browser control in panel and panel is placed in table layout. i have tried to hide scroll bar by webBrowser.ScrollBarsEnabled = false; but still there is scrollbar are visible. I want to hide it irrespective of page width. User should see page area which are best fitted on panel. How to do this.

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  • Accessing a namespace containing .base in its name from F#

    - by emaster70
    As the title says, I'm trying to use a class declared in a namespace which contains "base" in its name. Think of a situation like the following: open Foo.base.Bar In C# I'd just use @ before base but F# seems to ignore that and to think that @ is the infix operator used for list concatenation. Since the namespace belongs to a third-party library which I cannot modify, is there a way I can still access it from F#?

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  • PostgreSQL function question

    - by maxxtack
    CREATE FUNCTION foo() RETURNS text LANGUAGE plperl AS $$ return 'foo'; $$; CREATE FUNCTION foobar() RETURNS text LANGUAGE plperl AS $$ return foo() . 'bar'; $$; I'm trying to compose results using multiple functions, but when i call foobar() i get an empty result.

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  • Regarding Application Templates

    - by user185590
    Hi Folks , Here is Jagadeesh, New to the Iphone Development Platform , i need to know the Difference among the Templates for our Applications( like we have Navigation, view, window, Open Gl, Tab Bar, Utility type application)over there and there is a small description at the bottom of the pane , can anyone let me know the Complete description and Templates Screen shot(like View based aPpliction screen shot, Window based Screen Shot Etc..., ) so that as a beginner it is very easy to learn....

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  • iPhone UIWebView touch cause Toolbar to appear

    - by BahaiResearch.com
    I am trying to have a UI which is a full screen UIWebView. When the view is touched the tool bar appears. I can do everything but get the touchend event in the UIWebView. I have tried putting a UIColor.Clear'd UIView ontop and catching TouchEnd there and passing it on, but would like a better solution. I understand that we are not supposed to subclass the UIWebView from the docs. Ideas?

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