void space(void) {
byte c;
byte move_left, move_right;
char delay_count;
byte do_exit;
move_left = 0;
move_right = 0;
shot_y = 0;
shot_x = 0;
inv_shot_y = 0;
inv_shot_x = 0;
do_exit = 0;
clrbuf();
init_game();
delay_count = 0;
do {
clrbuf();
draw_invaders();
draw_tank(tank_pos);
// tank shot
tank_shot();
// invader shot
invaders_shot();
buf2screen();
// delay invader movement
if (++delay_count >= 5 - ((char)inv_pos_y / 3)) {
delay_count = 0;
move_invaders();
}
// delay
if (inv_count < 14)
delay_ms((14 - inv_count));
// read keyboard
c = io_read(129);
if (c == 0xe0) {
c = io_read(129);
if (c == 0x6b) { // left down
move_left = 1;
} else if (c == 0x74) { // right down
move_right = 1;
} else if (c == 0x6b + 0x80) { // left up
move_left = 0;
} else if (c == 0x74 + 0x80) { // right up
move_right = 0;
}
} else if (c == 0x29) { // shoot
if (shot_y == 0) {
shot_x = (tank_pos + 1) * 2 + 1;
shot_y = 90;
}
}
else if (c == 0x76) { // escape
do_exit = 1;
}
// move tank
if (move_left) {
if (tank_pos > 0)
tank_pos -= 1;
} else if (move_right) {
if (tank_pos < 76)
tank_pos += 1;
}
} while (!do_exit);
}
void tetris(void) {
char c, part_no;
byte i, stop, start;
show_splashscreen();
io_write(5, 42);
io_write(6, 15);
draw_playfield();
start_song();
start = 1;
while (1) {
if (start) {
next_part_no = rand() % 7;
lines = 0;
curr_y = 10;
remove_complete_lines();
clear_next_part();
while (io_read(128) != 255);
do {
vputs(95, 65, "GET READY");
buf2screen();
delay_ms(300);
vputs(95, 65, " ");
buf2screen();
delay_ms(300);
} while (io_read(128) == 255);
start = 0;
}
stop = 0;
curr_x = 5;
curr_y = 1;
clear_next_part();
part_no = next_part_no;
next_part_no = rand() % 7;
draw_next_part();
select_part(part_no);
draw_curr_part();
buf2screen();
while (!stop) {
for (i = 0; i < 20 && !stop; i++) {
if (lines < 20)
delay_ms(35);
else if (lines < 50)
delay_ms(25);
else if (lines < 70)
delay_ms(18);
else if (lines < 100)
delay_ms(12);
else
delay_ms(8);
if (!stop) {
c = io_read(128);
if (c == ' ') { // rotate part
rotate_curr_part();
buf2screen();
} else if (c == 0) { // left, right, down
c = io_read(128);
if (c == 75) { // left
move_left();
buf2screen();
} else if (c == 77) { // right
move_right();
buf2screen();
} else if (c == 80) { // down
while (!move_down())
buf2screen();
buf2screen();
stop = 1;
}
} else if (c == 27)
return;
} // if (!stop)
}
if (!stop) {
stop = move_down();
buf2screen();
}
}
remove_complete_lines();
if (curr_y <= 2) {
clear_playfield();
vputs(95, 65, "GAME OVER");
buf2screen();
getchar();
vputs(95, 65, " ");
start = 1;
}
}
}
