need help with reading from a file...

DrewDough · 2004-03-23T03:54:55

high, im working on a map editor for my pacman clone. anyway, i have finished most of the map editor. the only problem is ive never worked with reading/writing to a file before. i read some tutorials at gametutorials.com and figured out how to write to a file real easy. its the reading in of the file im having problems with. this is obviously a tile based game/map maker, my map array is [19][25] (y)(x). anyway, this is what my Save() function looks like: void Save() { ofstream fout; fout.open("map.txt"); for(int y = 0; y < 19; y++) { for(int x = 0; x < 25; x++) { fout << map[y][x]; } fout<<endl; } fout.close(); } now here is what a typical map.txt looks like if i save from inside my map editor: 1111111111100011111111111 1715888888881700017888888881517 17811811118170001781111811817 17811811118171111781111811817 178884848884882488848488817 17811817811181118111817811817 178888174888481784888417888817 171118171111181781111117811117 00017817888884848888817817000 111181781111111111181781111 888848881717071330171788848888 1111817178171701200017178171781111 00017817178171711111171781717817000 11118171788868886888171781111 178888171718178171717817811717888817 17811868881781717178178888811817 178111811118171717811118111817 17158885888858885888858881517 1111111111111111111111111 now, does anyone have any ideas on how i could read this file back into my map[][] array? im really knew to file input/output so any help is greatly appreciated. this is what i tried but its not working. void Open() { ifstream file_in("map.txt"); if(!file_in) return; int x = 0; int y = 0; char temp; while(y != 19) // Keep going until we reach the end of the map { file_in >> temp; map[y][x] = temp; // Increment 'x' every time we write a character until 'x' equals the // width of map, then start 'x' back at zero if(++x == 25) { x = 0; y++; // We need to increment y so we effectively go down to the next line } } // end of file_in.close(); }//end of open() thanks for any help!! [edited by - graveyard filla on March 23, 2004 3:26:47 AM]

For Beginners

Started by graveyard filla March 23, 2004 02:24 AM

9 comments, last by graveyard filla 20 years, 1 month ago

graveyard filla

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March 23, 2004 03:54 AM

mkk.... thats pretty much exactly what my open() and save() functions look like... this makes for one long txt file... but i guess that doenst matter seeing as im using a map-editor anyway

whats the difference beteen binary and "regular" file reading/writing? whats so great about it and how do i use it? thanks for any help

FTA, my 2D futuristic action MMORPG

need help with reading from a file...

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need help with reading from a file...

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