//---------------------------------------------------------------------------------
int main(void) {
//---------------------------------------------------------------------------------
const int tile_base = 0;
const int map_base = 20;
videoSetMode(0);
videoSetModeSub(MODE_5_2D);
vramSetBankC(VRAM_C_SUB_BG);
PrintConsole *console = consoleInit(0, 3, BgType_ExRotation, BgSize_ER_256x256, map_base, tile_base, false, false);
ConsoleFont font;
font.gfx = (u16*)fontTiles;
font.pal = (u16*)fontPal;
font.numChars = 95;
font.numColors = fontPalLen / 2;
font.bpp = 8;
font.asciiOffset = 32;
font.convertSingleColor = false;
consoleSetFont(console, &font);
int bg3 = console->bgId;
iprintf("Custom Font Demo\n");
iprintf(" by Poffy\n");
iprintf("modified by WinterMute and dovoto\n");
iprintf("for libnds examples\n");
unsigned int angle = 0;
int scrollX = 0;
int scrollY = 0;
int scaleX = intToFixed(1,8);
int scaleY = intToFixed(1,8);
while(1) {
scanKeys();
u32 keys = keysHeld();
if ( keys & KEY_L ) angle+=64;
if ( keys & KEY_R ) angle-=64;
if ( keys & KEY_LEFT ) scrollX++;
if ( keys & KEY_RIGHT ) scrollX--;
if ( keys & KEY_UP ) scrollY++;
if ( keys & KEY_DOWN ) scrollY--;
if ( keys & KEY_A ) scaleX++;
if ( keys & KEY_B ) scaleX--;
if( keys & KEY_X ) scaleY++;
if( keys & KEY_Y ) scaleY--;
swiWaitForVBlank();
bgSetRotateScale(bg3, angle, scaleX, scaleY);
bgSetScroll(bg3, scrollX, scrollY);
bgUpdate();
}
}
//---------------------------------------------------------------------------------
int main(void) {
//---------------------------------------------------------------------------------
int i = 0;
int angle = 0;
videoSetMode(MODE_0_2D);
vramSetBankA(VRAM_A_MAIN_SPRITE);
oamInit(&oamMain, SpriteMapping_1D_32, false);
u16* gfx = oamAllocateGfx(&oamMain, SpriteSize_32x32, SpriteColorFormat_256Color);
/* This is where we load the image.
* In this case we're doing a really simple striped pattern,
* but we could also load a bitmap. */
for(i = 0; i < 32 * 32 / 2; i++)
{
//gfx[i] = 1 | (1 << 8);
gfx[i] = 0x201; // alternating red and yellow
}
SPRITE_PALETTE[1] = RGB15(31,0,0); // full red
SPRITE_PALETTE[2] = RGB15(28,28,0); // bright yellow
while(1) {
scanKeys();
/* Slow down the rotate if the left trigger is pressed
* I'd like to do a fixed-point here, but I don't know how */
float inc = (keysHeld() & KEY_L)? 0.05 : 0.3;
if(keysHeld() & KEY_LEFT)
angle += degreesToAngle(inc);
if(keysHeld() & KEY_RIGHT)
angle -= degreesToAngle(inc);
//-------------------------------------------------------------------------
// Set the first rotation/scale matrix
//
// There are 32 rotation/scale matricies that can store sprite rotations
// Any number of sprites can share a sprite rotation matrix or each sprite
// (up to 32) can utilize a seperate rotation. Because this sprite is doubled
// in size we have to adjust its position by subtracting half of its height and
// width (20 - 16, 20 - 16, )
//-------------------------------------------------------------------------
oamRotateScale(&oamMain, 0, angle, intToFixed(1, 8), intToFixed(1, 8));
oamSet(&oamMain, //main graphics engine context
0, //oam index (0 to 127)
20 - 16, 20 - 16, //x and y pixle location of the sprite
0, //priority, lower renders last (on top)
0, //this is the palette index if multiple palettes or the alpha value if bmp sprite
SpriteSize_32x32,
SpriteColorFormat_256Color,
gfx, //pointer to the loaded graphics
0, //sprite rotation/scale matrix index
true, //double the size when rotating?
false, //hide the sprite?
false, false, //vflip, hflip
false //apply mosaic
);
//-------------------------------------------------------------------------
// Because the sprite below has size double set to false it can never be larger than
// 32x32 causing it to clip as it rotates.
//-------------------------------------------------------------------------
oamSet(&oamMain, //main graphics engine context
1, //oam index (0 to 127)
204, 20, //x and y pixle location of the sprite
0, //priority, lower renders last (on top)
0, //this is the palette index if multiple palettes or the alpha value if bmp sprite
SpriteSize_32x32,
SpriteColorFormat_256Color,
gfx, //pointer to the loaded graphics
0, //sprite rotation/scale matrix index
false, //double the size when rotating?
false, //hide the sprite?
false, false, //vflip, hflip
false //apply mosaic
);
swiWaitForVBlank();
oamUpdate(&oamMain);
}
return 0;
}
