need help, trying to get started
Posted: Sat Feb 06, 2010 3:09 am
hello
I was trying to get started in making ds games and apps, and I have successfully installed the toolchains and compiled some example files, and now I am trying to start on a simple project.
To keep things simple, for some reason I cannot compile my code becaues I get an error saying:
those constants were created in a separate header file for the sprites created by grit. For some reason it keeps tripping out on that, and I am not sure why. I would assume that those constants are global, so I would think scope shouldn't matter, but I am no pro. Any help? If you want the whole code, it is:
I am following Patater's tutorial. Thanks
I was trying to get started in making ds games and apps, and I have successfully installed the toolchains and compiled some example files, and now I am trying to start on a simple project.
To keep things simple, for some reason I cannot compile my code becaues I get an error saying:
Code: Select all
error: 'backgroundBitmap' was not declared in this scope
error: 'backgroundbitmapLen' was not declared in this scope
Code: Select all
/****************************************
* NDS Sprite Tutorial
* Author: opearn
****************************************/
/*includes*/
//include
#include <nds.h>
#include "background.h"
void initVideo()
{
vramSetMainBanks(VRAM_A_MAIN_BG_0x06000000,
VRAM_B_MAIN_BG_0x06020000,
VRAM_C_SUB_BG_0x06200000,
VRAM_D_LCD);
/* Set the video mode on the main screen. */
videoSetMode(MODE_5_2D | // Set the graphics mode to Mode 5
DISPLAY_BG2_ACTIVE | // Enable BG2 for display
DISPLAY_BG3_ACTIVE); //Enable BG3 for display
/* Set the video mode on the sub screen. */
videoSetModeSub(MODE_5_2D | // Set the graphics mode to Mode 5
DISPLAY_BG3_ACTIVE); // Enable BG3 for display
}
void initBackgrounds() {
/* Set up affine background 3 on main as a 16-bit color background. */
REG_BG3CNT = BG_BMP16_256x256 |
BG_BMP_BASE(0) | // The starting place in memory
BG_PRIORITY(3); // A low priority
/* Set the affine transformation matrix for the main screen background 3
* to be the identity matrix.
*/
REG_BG3PA = 1 << 8;
REG_BG3PB = 0;
REG_BG3PC = 0;
REG_BG3PD = 1 << 8;
/* Place main screen background 3 at the origin (upper left of the
* screen).
*/
REG_BG3X = 0;
REG_BG3Y = 0;
}
/* Select a low priority DMA channel to perform our background
* copying. */
static const int DMA_CHANNEL = 3;
void displayBG() {
dmaCopyHalfWords(DMA_CHANNEL,
backgroundBitmap, /* This variable is generated for us by
* grit. */
(uint16 *)BG_BMP_RAM(0), /* Our address for main
* background 3 */
backgroundBitmapLen); /* This length (in bytes) is generated
* from grit. */
}
int main() {
powerOn(POWER_ALL_2D);
lcdMainOnBottom();
initVideo();
initBackgrounds();
/*display the backgrounds. */
displayBG();
return 0;
}