SHIP *
ship_update(SHIP *ship, bool keys[], ALLEGRO_TIMER *timer)
{
LIST *head = NULL;
/* move forward */
if(keys[KEY_UP])
ship_accelerate(ship);
/* rotate */
if(keys[KEY_LEFT])
ship_rotate(ship, -3);
if(keys[KEY_RIGHT])
ship_rotate(ship, 3);
/* hyperspace */
if(keys[KEY_LCONTROL])
ship_hyperspace(ship);
/* shoot */
if(keys[KEY_SPACE])
ship_fire(ship, timer);
if(ship->explosion) {
animation_update(ship->explosion);
/* if the animation is complete, create a new ship */
if(ship->explosion->current_frame >= ship->explosion->n_frames - 1) {
/* FIXME: need preemptive collision detection, wait() */
SHIP *old = ship;
ship = ship_create();
ship_free(old);
}
return ship;
}
/* ship missile positions */
head = list_first(ship->missiles);
while(head) {
missile_update((MISSILE *) head->data, timer);
head = head->next;
}
ship->position->x += ship->velocity->x;
ship->position->y += ship->velocity->y;
wrap_position(ship->position);
/* slow down over time */
ship_drag(ship);
return ship;
}
int game(int type){
int game_over = 0;
{
surface *background = new_image("background.png");
apply_texture(background, window);
destroy_surface(background);
}
initialize_cameras();initialize_star();initialize_ships(2);initialize_dust();
initialize_shot();initialize_ai();
play_music("music.ogg");
draw_tank(0, (window_width / 2 - 421), window_height / 2 - 150);
draw_tank(1, window_width / 2 + 401, window_height / 2 - 150);
// Main loop
for(;;){
int i;
get_input();
if(keyboard[ESC] || game_over){
break;
}
for(i = 0; i < 2; i ++)
if(ship[i].status == DEAD){
struct timeval now;
gettimeofday(&now, NULL);
if((int) (now.tv_sec - ship[i].time.tv_sec) > 2)
game_over = 1;
}
erase_ships();
erase_shot();
if(type != CPU_X_CPU){ // Rotation: 10 Propulse: 20 Fire: 20 Hyper: 180
int my_ship;
// Player 1 moves
if(type == CPU_X_PLR){
ai_play(0);
my_ship = 1;
}
else if(type == PLR_X_CPU){
my_ship = 0;
ai_play(1);
}
else
my_ship = 0;
if(keyboard[LEFT])
rotate_ship(my_ship, LEFT);
if(keyboard[RIGHT])
rotate_ship(my_ship, RIGHT);
if(keyboard[UP])
propulse_ship(my_ship);
if(keyboard[DOWN])
ship_fire(my_ship);
if(keyboard[RIGHT_CTRL])
goto_hyperspace(my_ship);
}
else{
ai_play(0);
ai_play(1);
}
if(type == PLR_X_PLR){
// Player 2 moves
if(keyboard[A])
rotate_ship(1, LEFT);
if(keyboard[D])
rotate_ship(1, RIGHT);
if(keyboard[W])
propulse_ship(1);
if(keyboard[L])
blow_up(1);
if(keyboard[S])
ship_fire(1);
if(keyboard[LEFT_CTRL])
goto_hyperspace(1);
}
update_star(); // 6
update_ships(); // 2
update_dust(); // 145
update_shot(); // 16
film_ships(); // Até 16
film_dust(); // 20
film_shot(); // Até 20
weaver_rest(10000000);
}
stop_music();
destroy_star();
destroy_ships();
destroy_cameras();
destroy_dust();
destroy_shot();
clean_keyboard();
return 0;
}
