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;
}
/* Open and close the door */
void door()
{
if(doorstate == OPENING) {
doorpos++;
/* Draw the door in the window */
set_win_tiles(2, 2, 12, 6, film[doorpos]);
if(doorpos == NBDFRAMES)
doorstate = OPENED;
} else if(doorstate == CLOSING) {
doorpos--;
/* Draw the door in the window */
set_win_tiles(2, 2, 12, 6, film[doorpos]);
if(doorpos == 0)
doorstate = CLOSED;
}
}
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;
}
void main()
{
UBYTE i, j;
disable_interrupts();
DISPLAY_OFF;
LCDC_REG = 0x67;
/*
* LCD = Off
* WindowBank = 0x9C00
* Window = On
* BG Chr = 0x8800
* BG Bank = 0x9800
* OBJ = 8x16
* OBJ = On
* BG = On
*/
doorstate = CLOSED;
/* Set palettes */
BGP_REG = OBP0_REG = OBP1_REG = 0xE4U;
/* Initialize the background */
set_bkg_data(0xFC, 0x04, std_data);
set_bkg_data(0x00, 0x2D, bkg_data);
/*
* Draw the background
*
* Width = 0x100 = 0x20 * 8
* Height = 0x100 = 0x20 * 8
*/
for(i = 0; i < 32; i+=8)
for(j = 0; j < 32; j+=8)
set_bkg_tiles(i, j, 8, 8, bkg_tiles);
bposx.w = 0;
SCX_REG = 0;
bposy.w = 0;
SCY_REG = 0;
bspx.w = 0xFF00;
bspy.w = 0x0080;
/* Initialize the window */
set_win_data(0x80, 0x21, frame_data);
/*
* Draw the frame in the window
*
* Width = 0x80 = 0x10 * 8
* Height = 0x50 = 0x0A * 8
*/
set_win_tiles(0, 0, 16, 10, frame_tiles);
/*
* Draw the door in the window
*
* Width = 0x60 = 0x20 * 12
* Height = 0x30 = 0x20 * 6
*/
set_win_tiles(2, 2, 12, 6, door1_tiles);
wposx.b.h = MAXWNDPOSX;
wposx.b.l = 0;
WX_REG = MAXWNDPOSX;
wposy.b.h = MAXWNDPOSY;
wposy.b.l = 0;
WY_REG = MAXWNDPOSY;
wspx.w = 0xFF80;
wspy.w = 0xFFC0;
/* Initialize the sprite */
set_sprite_data(0x00, 0x1C, earth_data);
set_sprite_prop(0, 0x00);
set_sprite_prop(1, 0x00);
sframe = 0;
sposx.w = 0x1000;
sposy.w = 0x1000;
sspx.w = 0x0040;
sspy.w = 0x0040;
tile_sprite();
place_sprite();
DISPLAY_ON;
enable_interrupts();
while(1) {
/* Skip four VBLs (slow down animation) */
for(i = 0; i < 4; i++)
wait_vbl_done();
time++;
fade();
door();
scroll();
animate_sprite();
i = joypad();
if(i & J_B) {
if(i & J_UP)
bspy.w -= 0x0010;
if(i & J_DOWN)
bspy.w += 0x0010;
if(i & J_LEFT)
bspx.w -= 0x0010;
if(i & J_RIGHT)
bspx.w += 0x0010;
} else if(i & J_A) {
if(i & J_UP)
wspy.w -= 0x0010;
if(i & J_DOWN)
wspy.w += 0x0010;
if(i & J_LEFT)
wspx.w -= 0x0010;
if(i & J_RIGHT)
wspx.w += 0x0010;
} else {
if(i & J_SELECT)
color = STARTFADE;
if(i & J_START)
if(doorstate == CLOSED) {
doorstate = OPENING;
doorpos = 0;
} else if(doorstate == OPENED) {
doorstate = CLOSING;
doorpos = NBDFRAMES;
}
if(i & J_UP)
sspy.w -= 0x0010;
if(i & J_DOWN)
sspy.w += 0x0010;
if(i & J_LEFT)
sspx.w -= 0x0010;
if(i & J_RIGHT)
sspx.w += 0x0010;
}
}
}
int main (void) {
char* p = bg_map;
//Setup rand
rand_seed = DIV_REG;
//Turn off
disable_interrupts();
DISPLAY_OFF;
//Setup LCD
SHOW_BKG;
SHOW_SPRITES;
SHOW_WIN;
//Load bg
BGP_REG = OBP1_REG = 0xE4;
OBP0_REG = 0xE1;
set_bkg_data(0, background_tileset_size, background_tileset);
for (y = 0; y < bg_map_height; ++y ) {
set_bkg_tiles(0, y, bg_map_width, 1, p);
p += bg_map_width;
}
//Load window
x = 0;
for (i = 0; i < 21; ++i ) {
set_win_tiles(x, 0, ground_map_width, ground_map_height, ground_map);
x += ground_map_width;
}
WX_REG = 0;
WY_REG = 120;
//Load Sprite
set_sprite_data(0, sprites_size, sprites_data);
SPRITES_8x16;
//Load Bird
setupBird();
//Reset
resetGame();
//Turn on display
DISPLAY_ON;
enable_interrupts();
//Finish rand
rand_seed |= DIV_REG << 8;
initarand(rand_seed);
//RunLoop
while (1) {
joy = joypad();
wait_vbl_done();
switch (gameState) {
case GAME_STATE_INTRO: {
introLoop();
}
break;
case GAME_STATE_GAME: {
gameLoop();
}
break;
case GAME_STATE_DEAD: {
deadLoop();
}
break;
}
}
return 0;
}
