void empty_screen (void)
{
UBYTE temp1;
HIDE_BKG;
HIDE_SPRITES;
VBK_REG = 0;
SWITCH_ROM_MBC1(1);
for (temp1=0; temp1<40; temp1++)
{
move_sprite(temp1,0,200);
set_sprite_prop (temp1,0);
}
for (temp1=0; temp1<20; temp1++)
{
set_bkg_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
set_win_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
VBK_REG = 1;
set_bkg_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
set_win_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
VBK_REG = 0;
}
move_bkg (0,0);
SWITCH_ROM_MBC1(0);
SHOW_BKG;
SHOW_SPRITES;
}
unsigned int mainMenu()
{
int selection;
unsigned long int loopCount;
DISPLAY_OFF;
HIDE_BKG;
move_bkg(0,0);
set_bkg_palette( 7, 1, &menuPalCGB[28] );
set_bkg_palette( 6, 1, &menuPalCGB[24] );
set_bkg_palette( 5, 1, &menuPalCGB[20] );
set_bkg_palette( 4, 1, &menuPalCGB[16] );
set_bkg_palette( 3, 1, &menuPalCGB[12] );
set_bkg_palette( 2, 1, &menuPalCGB[8] );
set_bkg_palette( 1, 1, &menuPalCGB[4] );
set_bkg_palette( 0, 1, &menuPalCGB[0] );
set_bkg_data( 0, 141, menuTiles );
VBK_REG = 1;
set_bkg_tiles(0,0,menuMapWidth,menuMapHeight,menuPal);
VBK_REG = 0;
set_bkg_tiles(0,0,menuMapWidth,menuMapHeight,menuMap);
SHOW_BKG;
DISPLAY_ON;
setupPointer();
loopCount = 0;
do
{
loopCount++;
if((loopCount % 125) == 0)
updatePointer(); /* animate the pointer */
selection = checkButtons();
} while(!selection); /* user hasn't made a selection */
set_sprite_tile(0, 0); /* set to straight pointer while waiting */
while(joypad() & (J_A | J_START)); /* wait for the user to let up */
/* "Shoot" the pointer across the screen */
loopCount = 0;
while((pointerX + loopCount) <= 168)
{
move_sprite(0, pointerX + loopCount, pointerYPositions[currSelection]);
loopCount++;
delay(4);
}
hidePointer();
return selection;
}
void empty_screen (void)
{
UBYTE temp1;
//DISPLAY_OFF;
HIDE_BKG;
HIDE_SPRITES;
VBK_REG = 0;
ENABLE_RAM_MBC1;
for (temp1=0; temp1<40; temp1++)
{
move_sprite(temp1,0,200);
set_sprite_prop (temp1,0);
}
SWITCH_ROM_MBC1(4);
for (temp1=0; temp1<20; temp1++)
{
set_bkg_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
set_win_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
VBK_REG = 1;
set_bkg_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
set_win_tiles (0,temp1,20,1,(unsigned char *) &cEMPTY[0]);
VBK_REG = 0;
}
SWITCH_ROM_MBC1(0);
DISABLE_RAM_MBC1;
move_bkg (0,0);
SHOW_BKG;
SHOW_SPRITES;
//DISPLAY_ON;
}
