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NXT RPG, In progress
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Spiller
Jul 31 2009, 05:54 PM
Post #1
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NXT RPG
A turn-based role playing game for the NXT which features similar gameplay as the Pokemon games for Game Boy.
Work in progress!
Goals
Fully customizable
As much game data as possible is placed outside the executable.
...
Current features (development build)
Game maps with custom graphic and variable size.
Character "templates", character is defined by an ID and level and other stats is calculated based on the template.
--Character sprite
--Character name
--Character stats (attack, defense, speed, hit points, power points
Basic Save system
Text boxes
Move between different maps or teleport into a specific position on a map.
Possible future additions
Animated intro screen *2 (Maybe not anyway, only up to 10 IDs in RIC files? what kind of number is that??)
Attacks *X (expected to be done in v0.7)
Battles *X (expected to be done in v0.8)
Character types *X
Music as "MIDI" files *3 (Depends on CPU usage)
NPCs *3 (No idea how this should be done right now, but pretty crucial...)
...
*3 unlikely to be added
*2 likely to be added
*1 will probably be added
*X will be added (if everything goes well ; ) )
Requirements
Playing the game:
NXT with enhanced firmware 1.28
4 touch sensors
Compiling/code browsing:
NXC code: BCC, possible pre-release build
C++ code: I used MinGW, but Visual C++ and others should also work just as good.
XML and XSL files (editing): any text editor should be good...
XML+XSL files (viewing): Opera 10 or Firefox 3.6. (IE will not work.)
Status
Current version: 0.7
Version 0.8 status: Early stage
Downloads:
Version 0.7 (binary): NXT_RPG_0.7_bin.zip ( 35.76k ) Number of downloads: 5
Version 0.7 (source): NXT_RPG_0.7_src.zip ( 481.02k ) Number of downloads: 17
Version 0.6: NXT_RPG.zip ( 26.66k ) Number of downloads: 27
Snapshots:
Revision 75 (both): NXT_RPG___revision_75.zip ( 575.77k ) Number of downloads: 7
The game as of version 0.7
(The images might be a little newer than the one in the zip though...)
lvl1___v0.7plus.png ( 1.05k ) Number of downloads: 3
textbox___v0.7plus.png ( 100.05k ) Number of downloads: 1
The first level and a text box
character_info___details_overview___v0.7plus.png ( 100.05k ) Number of downloads: 1
ingame_menu___v0.7plus.png ( 100.05k ) Number of downloads: 1
The character info screen and the in-game menu.
Any feedback or suggestions are appreciated.
Andy
Jul 31 2009, 06:16 PM
Post #2
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Nice work, spiller! I will test it out as soon as I get the chanse (IMG:style_emoticons/default/smile.gif)
Keep us update on how the game's doing!
Regards,
Andreas
sidneys1
Jul 31 2009, 07:08 PM
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Nice! I like the in-game menu... how functional is it? And how functional is the Main Menu?
It's funny, You made the menus first, and are now probably working more on the 'game' part. I, in my game, made am making the 'game' part first, and then will work on the menus and etc. (IMG:style_emoticons/default/biggrin.gif)
Have a nice day,
~Sidneys1
Spiller
Jul 31 2009, 08:24 PM
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Main menu:
New game: Loads "Start.dat" which read possision where player starts (level number and x,y)
Load: enters a emtpy screen: A or B to get back
Options: the same
Exit: stops the program
Ingame:
Only Exit works, which removes the menu again. (all selectable though). B will exit too.
I had made a subroutine which showed charrecter stats, but the file with this made very strange chrashes. (I make a empty multiline comment, and the game chrashes... I didn't change anything which compiles and it chrashes!!!) So rewriting that part...
Actually, I haven't spend much time with those menus. (but they are easy to show on a screenshot) Most time have been used with making the varible system in the background as flexcible as possible and the code to get it work. And trying to make it draw the level on the screen faster...
So far it looks like the levels are completly done. When changing level, the new level is correctly loaded, redefining the size of the array and selecting new RIC file. (It will still be modified sligthly though...)
I have added events, which moves the player (to a new point or level) or shows a text box. But the text box is pretty bad... So next thing I am doing is to make my own custom font. Graphic done now, all ANSII charrecter from 32 to 126 (signs, numbers, upper case and lower case, heigth is 7 pixels). The challenge will be to make intelligent word wrapping now. : P
And I migth want to change the string loading function. Rigth now it reads the first byte to define the length of the string and then the correct number of charrecters, but this limit strings to 255 charrecters in length... But maybe it is enough?
Xander Soldaat
Aug 1 2009, 12:35 AM
Post #5
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Spiller,
Pretty impressive what you're managing to squeeze out of the NXT. Will there be NPCs and mobs as well?
Gr,
Xander
Spiller
Aug 1 2009, 05:15 AM
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Right now I don't know how to include NPCs, but I hope too add it. Rigth now there is support for static NPCs if you place one on the map and add a text or a level move event onto it. (I am adding a level_type_2, which will contain the battles.)
mobs will appear in the same way as in pokemon, they appear out of nowhere when you walk in certain areas. I'm thinking of changing the solid state of the map into a normal byte which will refer to a second more detailed stuct. This struct will then have the solid state, chance of event and possible others.
Update:
Font works now:
Font7px.png ( 564bytes ) Number of downloads: 4
It was actually pretty easy to get to work. It took some time to write all widths and posstions, but not that bad after all. (I haven't checked it completly yet though, so there could be a few errors hidden somewhere...)
Now to the hard part, intelligent word wrapping...
Edit: I don't know if it really can be called "intelligent" word wrapping, but at least word wrapping. (entering a new line when next word can't be fully on the screen)
Spiller
Aug 9 2009, 03:24 AM
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Word wrap works now : D
Or rather, I haven't found any bugs so far ; )
However it is quite slow... For a string that was 6 lines long, this took a full second...
But I saw a article about this on wikipedia, and it looked like it showed different solutions to the problem there. But I didn't look closer, I wanted to do it myself first.
So there migth be a faster method there.
I also made it possible to only draw certain lines. Rigth now this limits it to 256 lines. (I wouldn't need more though, I have a max on strings on 255 charrecters in the rpg rigth now.) But it is a really easy fix though...
example of full text:
word_wrap_full.png ( 674bytes ) Number of downloads: 6
Only showing line 2 and 3:
word_wrap_line_2_and_3.png ( 345bytes ) Number of downloads: 5
(edit: just noticed it looked bigger than on the other pic, there is an extra line between the text, fixed it now.)
Another thing, since I need to access the width of a charrecter in the program, I had to place the charrecter info in the program instead of the ric file, which means the program fills ~7000 bytes...
But I can place some of this in the ric file though, it should bring the size down a bit, but I still need every single chars width in the program...
Rigth now I have it as a switch, like this:
CODE
byte Font7width(const byte &charrecter){
//give width of charreter
switch(charrecter){
case 32: return 3; break; // (space)
case 33: return 2; break; // !
case 34: return 4; break; // "
case 35: //return 6; break; // #
case 36: return 6; break; // $
case 37: return 7; break; // %
I was wondering, can you change the order of the cases and if, will it inpact speed?
Because I was wondering to do something like this:
CODE
switch(charrecter){
case 33:
case 39:
case 46: return 2; break;
case 32:
case 41: return 3; break;
I think this should bring the size down a bit if I add them all under the same return break statements. But is it possible, and if it is, will it affect speed?
Edit: since I'm really stupid I didn't think of just trying it... Just a quick test, it compiled fine and speed didn't seem to change. Of course this didn't vertify mixed order works flawless, but it seemed to work fine.
Update: Did a full test, it worked fine, it even ran faster! Not much (150 msec), but it was faster anyway! Edit: actually, 150 isn't that little, it is over 10%...
Edit 2 because I forgot to mention it:
Before the change, the program used 7800 bytes, now it is 6800 bytes, so about 1000 bytes down in size. If I move the other parts into the ric file, it should go down quite a bit. I don't know how this will affect speed though.
Update:
Only the charrecter width is in the program now. Program size is 4000 bytes and ric file is 700.
Speed for that string is 775 msec now.
I have added it here so anyone interested can try it. Still first version and not completly tested, so maybe some bugs?
Font7pxOut(x,y,string); outputs the text on a single line.
Font7pxWrapOut(x,y,edge,string,start,end); outputs a string by using multible lines.
Arguments: (I shortned the names)
edge: A vertical line where the letters may not be printed and therefore first printed on next line. This is a fixed point on the screen. Use 100 for rigth edge of the screen.
start: the first line to draw. starts with 0. (I use this for scroling the text, since I will only be showing two lines at a time in the RPG.)
end: the line which it should stop drawing. Set this to false if you want everything to be displayed.
(example, start = 2, end = 4, results in line 2 and 3 will be displayed.)
The zip:
Font___word_wrap.zip ( 2.64k ) Number of downloads: 6
muntoo
Aug 16 2009, 04:02 PM
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I can't seem to understand how any of it works (I mean how to play the game).
A suggestion would be to make use of BTNEXIT.
The preview should stay on the screen before getting holes poked in it for 2 seconds (or until you press enter). And the hole poke should be faster (fire the rifles!!!!)
Can you tell us how to play/work the menus (that don't work, I know, but later on).
EDIT: Oh yeah, it looks good for a game that isn't done yet... I think.
Spiller
Aug 18 2009, 05:00 AM
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QUOTE(muntoo @ Aug 16 2009, 11:02 PM)
I can't seem to understand how any of it works (I mean how to play the game).
A suggestion would be to make use of BTNEXIT.
The preview should stay on the screen before getting holes poked in it for 2 seconds (or until you press enter). And the hole poke should be faster (fire the rifles!!!!)
Can you tell us how to play/work the menus (that don't work, I know, but later on).
EDIT: Oh yeah, it looks good for a game that isn't done yet... I think.
The input is done with sensors mostly, so if you are just trying to press the nxt buttons, it wouldn't work.
Rigth now, you press two touch sensors to move sideways and using a motor (rotation sensor) to more upward and downwards. (this was done because of the contest, it doesn't really work that well...) Action key is left NXT button and back (not always used...) is the rigth NXT button. The middle button is rigth now only used to open the ingame menu.
Anyway, you migth want rigth now to change the input to other sensors, buttons. Just open the input_handlers.nxc file, (I think that is the name...) and find the task GetInput and change the sensors there, and it will work for the whole program.
(Direction is input.dpad[], where input.dpad[0] is up, input.dpad[1] is right, input.dpad[2] is down, and input.dpad[3] is left. Everything is bool, I don't think it will be too hard to figure out.)
I still need to work a bit on the input system, menus work fine, but moving around on the map migth seem a bit wierd right now... I have a idea right now, but I have to see how well it works.
The menus:
You move around with the dpad, accepts a choise with the action button, and exits with the back button. (the back button migth not be added in all menus right now though.)
I hope to release the version 0.7 before saturday, but I have had a hard time concentrating lately... (I only worked a bit on the text box with word wrap...)
Anyway, the controls are made to fit my needs when debuging, but if any want to try it, I can change into something specific if you want. It just need to control 3 buttons and give a direction (up, down, right, left). So if you want it, say how you want to control it and I will change it in the released v0.7.
NXTboy
Aug 21 2009, 06:20 AM
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QUOTE(Spiller @ Aug 9 2009, 09:24 AM)
Another thing, since I need to access the width of a charrecter in the program, I had to place the charrecter info in the program instead of the ric file, which means the program fills ~7000 bytes...
But I can place some of this in the ric file though, it should bring the size down a bit, but I still need every single chars width in the program...
Rigth now I have it as a switch, like this:
CODE
byte Font7width(const byte &charrecter){
//give width of charreter
switch(charrecter){
case 32: return 3; break; // (space)
case 33: return 2; break; // !
case 34: return 4; break; // "
case 35: //return 6; break; // #
case 36: return 6; break; // $
case 37: return 7; break; // %
Two things:
character is the correct way to spell "charrecter"
Arrays are your friend. Here's the code I used for my font:
CODE
#define Font7width(x) charwidths[x-32];
int charwidths[] = {1,1,3,5,5,6,5,1,2,2,2,3,1,2,1,2,4,2,4,4,4,4,4,4,4,4,1,1,4,4,4,4,8,6,6,6,6,5,5,6
,6,1,4,5,4,8,6,6,6,6,6,5,5,5,5,7,5,5,5,2,2,2,3,4,2,4,4,4,4,4,2,4,4,1,1,4,1,7,4,5
,4,4,2,4,2,4,4,5,3,3,3,2,1,2,4};
Spiller
Aug 21 2009, 07:44 AM
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QUOTE(NXTboy @ Aug 21 2009, 01:20 PM)
Arrays are your friend. Here's the code I used for my font:
CODE
#define Font7width(x) charwidths[x-32];
int charwidths[] = {1,1,3,5,5,6,5,1,2,2,2,3,1,2,1,2,4,2,4,4,4,4,4,4,4,4,1,1,4,4,4,4,8,6,6,6,6,5,5,6
,6,1,4,5,4,8,6,6,6,6,6,5,5,5,5,7,5,5,5,2,2,2,3,4,2,4,4,4,4,4,2,4,4,1,1,4,1,7,4,5
,4,4,2,4,2,4,4,5,3,3,3,2,1,2,4};Thanks, I will try it out. It should speed things quite a bit and perhaps a little on the memory usage? I will probably use byte though, unless int is much faster, but I will try that too.
NXTboy
Aug 21 2009, 08:50 AM
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QUOTE(Spiller @ Aug 21 2009, 01:44 PM)
Thanks, I will try it out. It should speed things quite a bit and perhaps a little on the memory usage? I will probably use byte though, unless int is much faster, but I will try that too.
Yeah, use byte: it takes up half the space. In fact, use const byte. That might save memory usage, and will prevent accidental width modification.
Spiller
Aug 22 2009, 03:40 AM
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QUOTE(NXTboy @ Aug 21 2009, 03:50 PM)
Yeah, use byte: it takes up half the space. In fact, use const byte. That might save memory usage, and will prevent accidental width modification.I'm done with changing it now. (had to recharge the batteries, and couldn't find any others -__-)
Speed have been improved with 200msec (total 580msec) for the example sting, and filesize has went down 1000 bytes to a total of 3000 bytes now.
I tried to use int instead of byte, and surprisingly it was a bit slower. (588 msec) Not a speed difference that really matters, but considering you can cut the memory usage in half...
Anyway, I chose to make the function like this istead of using a macro:
CODE
byte Font7width(const byte &charrecter){
//give width of charreter
if((charrecter > 31)&&(charrecter < 127))
return charwidth[charrecter-32];
else
return 0;
}
This should prevent the program from chrashing if there is any control charrecters or otherwise unsuported charrecters in the string.
I was wondering to make an array struct containing information about how the string is breaked. So when showing scrolling text like in the RPG, I wouldn't need to recalculate the full string, I would just read the information from the struct.
I still need to optimize the function though...
midcyber
Sep 7 2009, 12:08 PM
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As experienced mobile game developer, I would recommend to you use of monospace font.
i.e. where all characters of a same width.
This way, you can save time in two areas:
1) Calculating letter width
2) You can preformat your text on PC, and then no need in word wrap.
However, I know, developing dynamic word-wrapped is fun and gives a lot of experience (IMG:style_emoticons/default/wink.gif)
Spiller
Sep 7 2009, 04:03 PM
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QUOTE(midcyber @ Sep 7 2009, 07:08 PM)
As experienced mobile game developer, I would recommend to you use of monospace font.
i.e. where all characters of a same width.
This way, you can save time in two areas:
1) Calculating letter width
2) You can preformat your text on PC, and then no need in word wrap.
However, I know, developing dynamic word-wrapped is fun and gives a lot of experience (IMG:style_emoticons/default/wink.gif) Yes, the main reason for doing it was because of it being fun. Secondly, I couldn't find any with all ANCII characters, not even one with lower case letters. So by doing it now, I will have a font I can use in many other cases.
I will still mainly be using the other font, since my new font is larger and I don't need it that much. I think I will use the new font mainly for text inputted by the user (this is also text from data files) and the other for text hardwired in the program.
So I will continue with making the word wrap function. Mainly optimizing it, but I am also thinking about adding a function to store how a string is wrapped for use when text is scrolled. (so it doesn't need to recalculate the whole string just move one down...)
But that will wait for later, right now I will work on adding game characters and afterwards some battle mode.
Spiller
Oct 30 2009, 04:38 PM
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As I said in the other topic, I'm finally continuing the project. Almost 2 months, somehow I thought it was much more...
Just to show the project is alive again, here is a screenshot of the submenu where you can see more details about your characters:
Character_select.png ( 592bytes ) Number of downloads: 2
There is still needed quite a bit of work on this submenu though...
But this means I'm finally beginning to start on the game mechanics and after this submenu is done, I will start right away with Level_Type_2 which will contain all battles.
Secondly, I started organizing my project folder using SVN (just locally). I wanted to keep the older versions for the record, but they made my folder confusing to browse though, this might solve that. And it will be quite a bit easier to move the project to my laptop if needed.
So this will basely be a test to see if SVN could be useful for me.
Spiller
Linus
Nov 1 2009, 08:31 PM
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QUOTE(Spiller @ Oct 30 2009, 10:38 PM)
Secondly, I started organizing my project folder using SVN (just locally).
...
So this will basely be a test to see if SVN could be useful for me.
Version control is one of the greatest things ever for programmers! There is a free SVN book available somewhere on the homepage. If you're using Windows, definitely check out TortoiseSVN!!
And while we're at it: If you're really just using it locally for now, you might like Git or Mercurial. Those are distributed version control systems, and you can easily commit changes without having to install or configure a server! There are TortoiseHG (for Mercurial) and TortoiseGit versions, too (not as perfectly matured as TortoiseSVN, but still ok).
Spiller
Nov 2 2009, 03:31 AM
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QUOTE(Linus @ Nov 2 2009, 02:31 AM)
Version control is one of the greatest things ever for programmers! There is a free SVN book available somewhere on the homepage. If you're using Windows, definitely check out TortoiseSVN!!I saw that book, read one chapter of it while in school. I already had TortoiseSVN installed since I needed to download the source code of a game so getting everything to work was actually surprisingly easy, I hadn't expected that.
QUOTE(Linus @ Nov 2 2009, 02:31 AM)
And while we're at it: If you're really just using it locally for now, you might like Git or Mercurial. Those are distributed version control systems, and you can easily commit changes without having to install or configure a server! There are TortoiseHG (for Mercurial) and TortoiseGit versions, too (not as perfectly matured as TortoiseSVN, but still ok).For now I guess I will just keep it like this since I actually needs my NXT to work on it, so I do not have much use of working at it on school or other places. But if I start a normal programming project I might try them out.
So far it seems great.
The project is going along pretty well in the moment.
I have added a file to contain all character names where the name is loaded as needed. (To avoid having too many strings in memory.) Even without any optimizations I didn't notice any delay, though this was only with a file 6 strings long. But it seems to be fast enough to load data from files when needed instead of keeping it in the memory all the time.
And I just finished the major time killers from school in the weekend, so I should have some more time to work on it now. : )
Spiller
Nov 14 2009, 12:41 PM
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I save the data files as binary files. The files containing the map can easily get up to 500-1000 characters and when everything is just saved as one long string of random numbers this get rather confusing and almost impossible to edit...
So I'm trying to find a data type which I can edit which will then be changed into the binary file used on the NXT.
Since we have been working a lot with XHTML and CSS in school I researched on XML. Saving it as a XML file could be rather useful because you can transform it into HTML and with the combination of a little CSS magic it will give a visual representation of the data.
I tried it, and you can see how it looks in the browser here:
map.png ( 1.58k ) Number of downloads: 22
(The blue color shows that it is solid and cannot be walked though.)
However I doubt it would be easy to make a program to read it and change it to a binary file...
But perhaps I can use XMLT again, if I make it paste the numbers like this: "&#"number";"? Even though I might not get the file directly, it should be easier to work with...
Anyone that knows of a better method?
And just a small update:
1.png ( 589bytes ) Number of downloads: 2
2.png ( 559bytes ) Number of downloads: 1
3.png ( 437bytes ) Number of downloads: 1
4.png ( 590bytes ) Number of downloads: 1
(You can move the characters in the list, you can see the result in the last image.)
(and btw, I like the new color background color in "NXT Screen")
Edit: I used XSLT to change the XML into a string which stored the number like this: "#xxx;" (where xxx is the number.) and boolean values like this for true: "&t;" and this for false: "&f;". I got a small c++ application to open that string and save a binary file based on this. So I found a working solution. (though the c++ app is rather bad written at this point...)
nxtboy III
Nov 29 2009, 09:33 AM
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QUOTE(Spiller @ Nov 14 2009, 01:41 PM)
I save the data files as binary files. The files containing the map can easily get up to 500-1000 characters and when everything is just saved as one long string of random numbers this get rather confusing and almost impossible to edit...
So I'm trying to find a data type which I can edit which will then be changed into the binary file used on the NXT.
Since we have been working a lot with XHTML and CSS in school I researched on XML. Saving it as a XML file could be rather useful because you can transform it into HTML and with the combination of a little CSS magic it will give a visual representation of the data.
I tried it, and you can see how it looks in the browser here:
map.png ( 1.58k ) Number of downloads: 22
(The blue color shows that it is solid and cannot be walked though.)
However I doubt it would be easy to make a program to read it and change it to a binary file...
But perhaps I can use XMLT again, if I make it paste the numbers like this: "&#"number";"? Even though I might not get the file directly, it should be easier to work with...
Anyone that knows of a better method?
And just a small update:
1.png ( 589bytes ) Number of downloads: 2
2.png ( 559bytes ) Number of downloads: 1
3.png ( 437bytes ) Number of downloads: 1
4.png ( 590bytes ) Number of downloads: 1
(You can move the characters in the list, you can see the result in the last image.)
(and btw, I like the new color background color in "NXT Screen")
Edit: I used XSLT to change the XML into a string which stored the number like this: "#xxx;" (where xxx is the number.) and boolean values like this for true: "&t;" and this for false: "&f;". I got a small c++ application to open that string and save a binary file based on this. So I found a working solution. (though the c++ app is rather bad written at this point...)
AWESOME!!! When will you be finished?
.