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by tobeder
Tue Nov 04, 2014 12:37 am
Forum: SGDK
Topic: Background size
Replies: 10
Views: 7629

In the code you originally posted, the call to VDP_setPlanSize sets the background plane size to 32x32 tiles. At this setting, it's too small to fit your 680 pixel image. You'd have to set the plane size to 128x32 which would give you a maximum size of 1024 x 256. If your image fits into that, then...
by tobeder
Mon Nov 03, 2014 6:06 pm
Forum: SGDK
Topic: Background size
Replies: 10
Views: 7629

Hi, I made the changes with & 31 and & 127. My background image is 680 px wide and with the "& 127" modification I can't display the entire image. So maybe I need to charge another background image (maybe is less memory consuming) when the posx is bigger than 128 tiles each time or I need to place a...
by tobeder
Fri Oct 31, 2014 5:05 pm
Forum: SGDK
Topic: Background size
Replies: 10
Views: 7629

Hi, I've been trying to display correctly the background with your suggestions. I made some advance but seems that I need to reset something when the background reaches the width of the plan, because its loading the background but one tile below position 0 each time. Here's is the code: #include <ge...
by tobeder
Wed Oct 22, 2014 5:57 pm
Forum: SGDK
Topic: Background size
Replies: 10
Views: 7629

Thank you! I see that VDP_setPlanSize can be used to change the background size. So if I understand, I can make a bigger background image and by code I need to update the plane when the a full chunk (maybe a 32 tile width chunk) of that image has been scrolled. Maybe using u16 VDP_drawImageEx and ch...
by tobeder
Tue Oct 21, 2014 10:34 pm
Forum: SGDK
Topic: Background size
Replies: 10
Views: 7629

Background size

Hi! I was playing with the sprite demo included with the sgdk download. I was trying to make the "level" bigger than it actually is so I modified the following lines of main.c: Line 25: #define MAX_POSX FIX32(3200) and Line 190: // clip camera position if (npx_cam < FIX32(0)) npx_cam = FIX32(0); els...
by tobeder
Thu Sep 11, 2014 10:13 pm
Forum: SGDK
Topic: undefined reference to main
Replies: 14
Views: 9892

I see. Then the code is:

hola.c

Code: Select all

#include <genesis.h>
#include "moon.h"

int main()
{

   // draw the moon at (12,12)
   VDP_drawImage(VDP_PLAN_A, &moon, 12, 12);

	while(1)
	{
	   VDP_waitVSync();
	}
	return 0;
}
moon.res

Code: Select all

IMAGE moon "moon.bmp" -1
Thank you! :D
by tobeder
Thu Sep 11, 2014 4:26 pm
Forum: SGDK
Topic: undefined reference to main
Replies: 14
Views: 9892

Easier is not it ? :wink: Nice! That's a lot easier :D Now the moon example is working. Thank you! Would be nice to have an updated version in the wiki. https://farm4.staticflickr.com/3910/15022033029_35c3063554_s.jpg moonOK by tobeder , on Flickr Here is the code: hola.c #include <genesis.h> #incl...
by tobeder
Wed Sep 10, 2014 10:37 pm
Forum: SGDK
Topic: undefined reference to main
Replies: 14
Views: 9892

I find that I need to create the .res file in order to generate the moon.h I can compile the example but I'm getting a weird result. Here's my code: #include <genesis.h> #include "moon.h" int main() { // get the image width (in pixel) ==> should be 8pix aligned u16 w = moon.w; // get the image heigh...
by tobeder
Wed Sep 10, 2014 5:37 pm
Forum: SGDK
Topic: undefined reference to main
Replies: 14
Views: 9892

Before checking the project settings I can't compile from Eclipse so I tried the command line and I can do it. I'm stuck at the Multi tiles part of the tutorial (the moon) I can't compile the source code from the command line. Here's the error: C:\genesis\projects\tut3_TilesBitmap\3_TilesBitmap>%GDK...
by tobeder
Tue Sep 09, 2014 4:45 pm
Forum: SGDK
Topic: undefined reference to main
Replies: 14
Views: 9892

undefined reference to main

Hi! I was trying to setup and run the HelloWorld demo on Windows 7 but I'm getting this message: 11:28:49 **** Build of configuration Debug for project HelloWorld **** "C:\\genesis\\sdk\\bin\\make" -f "C:/genesis/sdk\\makefile.gen" C:/genesis/sdk/bin/gcc -BC:/genesis/sdk/bin -n -T C:/genesis/sdk/md....

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