[nRGBlib] W.I.P - Colorful librairy for Ndless 3.1

[lkj]

the "directory for the tns file" means the name and directory were the compiled .tns will be. For example this line could be

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1	DISTDIR = Example.tns

In the OBJS line you have to write the names of the .c files you want to compile, but with .o instead of .c at the end of each name.

So I could put
DISTDIR = C:/ndless/test1/testprogram.tns
?

I'm sorry that I was wrong and didn't answer
It would have to be
DISTDIR = C:/ndless/test1/
but I guess you've figured it out yourself.

[epic7]

Nope. Never got rand() to compile.

Also, I guess I'll just make my sprites out of shapes for now.

[totorigolo]

Do you include <nMATHS.h> ? Otherwise show me your code.

In the current configuration of nRGBlib, it's not very useful to have sprites, because you can create as many shapes as you want, it's very light (for example, a box = int16_t x; + int16_t y; + int16_t w; + int16_t h;). This is why I have not yet implemented sprites so far.

Tell me if my English is bad  

[epic7]

nMATHS.h doesnt help, heres the code
http://pastebin.com/QfaM34Fc

Also, how do you display integers?

[totorigolo]

I have no problem with your code.

I've replaced like this:

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1 2	//seed=randnum(seed); //my goal is to give yvel a random value -128 to 128         seed = randMinMax(-128, 128);

and it works pretty fine.

Can you send me your Makefile ?

[epic7]

I'd just need to do
yvel=randMinMax(-128, 128)
do do what i need

Makefile

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GCC = nspire-gcc LD = nspire-ld GCCFLAGS = -Os -nostdlib -I"c:/nRGBlib/sdk/include/" LDFLAGS = -L "c:/nRGBlib/sdk/lib/" OBJCOPY := "$(shell (which arm-elf-objcopy arm-none-eabi-objcopy arm-linux-gnueabi-objcopy | head -1) 2>/dev/null)" ifeq (${OBJCOPY},"") OBJCOPY := arm-none-eabi-objcopy endif OBJS = pong.o DISTDIR = . vpath %.tns $(DISTDIR) all: Pong.tns %.o: %.c $(GCC) $(GCCFLAGS) -c $< %.o: %.S $(GCC) $(GCCFLAGS) -c $< Pong.tns: $(OBJS) $(LD) $(LDFLAGS) $^ -o $(@:.tns=.elf) -lRGB @mkdir -p $(DISTDIR) $(OBJCOPY) -O binary $(@:.tns=.elf) $(DISTDIR)/$@ clean: rm -f *.o *.elf rm -f $(DISTDIR)/Pong.tns

[totorigolo]

Your Makefile seems to be good.

I'd just need to do
yvel=randMinMax(-128, 128)
do do what i need

I'm not sure to have understood, but if I have well understood, you're right :

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while (players  == 0)     {         //seed++;         rand();         if (isKeyPressed(KEY_NSPIRE_CTRL))         /* ... */         //seed=randnum(seed); //my goal is to give yvel a random value -128 to 128         //yvel=seed%257-128;         yvel=randMinMax(-128, 128);

And I've checked yvel values and they are goods.

Sorry if I'm repeating me, but what is your problem exactly? What is the output of gcc if your code not compile?

[epic7]

Hm, I'll try it again and I'll show you the error if it fails.

Also, is there a way better than what I currently use to draw things?
My current way is something like:

Loop
{
Draw object
Pause
Do code stuffs
Draw white over object
Update object's coordinates
}

The objects flash a lot with this tho

[totorigolo]

Your way seems good, but I can't help you much better, because I am just a French 15 years old boy who had learned thanks to the SdZ and alone to program So, nRGBlib's code is surely not optimized at all, and all suggestions / patch / help (/ ...) is obviously the welcome  (→ https://bitbucket.org/totorigolo/nrgblib/issues?status=new&status=open)

The objects flash a lot with this tho

Indeed, I noticed that the ball is flashing a lot. Maybe, you can use drawBox instead of drawDisc to clear the previous ball, because it should be faster...
To draw circles or discs, I currently use Bresenham's algorithm (http://fr.wikipedia.org/wiki/Algorithme_de_trac%C3%A9_d%27arc_de_cercle_de_Bresenham (or in English http://en.wikipedia.org/wiki/Midpoint_circle_algorithm), thanks Excale for the link ), and you can see my implementation here (https://bitbucket.org/totorigolo/nrgblib/src/d999e40ef8af/src/nRGBlib/drawDisc.c). Maybe an (more) optimized version exists.

Anyway, thanks you for your feedback

[totorigolo]

I am currently adding many new things to nRGBlib, whose images. The system is currently functional, but I have not optimized for the moment only the CX (16bpp), because I absolutely wants to keep compatibility between 16bpp / 4bpp without recompilation, and I'm having some problems with void* pointers ...

So if someone wants to help me in optimizing 4bpp in order to accelerate the next nRGBlib's release. 

I also plan to open PNG and JPG (because right now the format is one that I created) by integrating the source code of mViewer (for BMP and PNG) and of Nspire and Movie Player (of tangrs) (for JPG), which are released under GPL v2 and v3.

[totorigolo]

Here is an example of nRGBlib's current features.

The map editor is coded in C + + with SFML. It was created thanks to this tutorial.

<a href="http://www.youtube.com/watch?v=J_d_rJuedQc" target="_blank">http://www.youtube.com/watch?v=J_d_rJuedQc</a>
The sample run slower on 4bpp, because of non-optimization.


----

PS: For epic7, I haven't change your code, but I've just added the double-buffering :
<a href="http://www.youtube.com/watch?v=1jgwHlnxkWk" target="_blank">http://www.youtube.com/watch?v=1jgwHlnxkWk</a>

[adriweb]

very nice !!

[totorigolo]

Thanks you

If you want to play, or create your map, you will have to wait 

• Image transparancy
• Delete tiles
• Open PNG / BMP
• Optimizations on 4bpp

[totorigolo]

nRGBlib v0.3 has just been released.
The main post has been updated.
A new has been published on TI-Planet : http://tiplanet.org/forum/viewtopic.php?p=123024.

[DJ Omnimaga]

Awesome, nice to see you still working on this