graphics/Backgrounds/Mode7/Mode7.c

/*---------------------------------------------------------------------------------
 
 
    Simple mode 7 rotating demo with more than 32k tiles
    -- alekmaul
 
 
---------------------------------------------------------------------------------*/
#include <snes.h>
 
extern char patterns, patterns_end;
extern char palette;
extern char map, map_end;
 
u16 pad0;
u8 angle;
 
//---------------------------------------------------------------------------------
int main(void)
{
    // Read tiles & map to VRAM  (interlace for mode 7)
    bgInitMapTileSet7(&patterns, &map, &palette, (&patterns_end - &patterns), 0x0000);
 
    // Now Put mode7 without anything else
    setMode7(0);
 
    // Display screen
    setScreenOn();
 
    // Init angle
    angle = 0;
 
    // Wait for nothing :P
    while (1)
    {
        // Get current #0 pad
        pad0 = padsCurrent(0);
        if (pad0)
        {
            // Update scrolling with current pad
            switch (pad0)
            {
            case KEY_A:
                angle++;
                setMode7Rot(angle);
                break;
            case KEY_B:
                angle--;
                setMode7Rot(angle);
                break;
            }
        }
        WaitForVBlank();
    }
    return 0;
}