void player_input(SDL_Event event)
{
if( event.type == SDL_KEYDOWN ) {
//Adjust the velocity
switch( event.key.keysym.sym ) {
case SDLK_LEFT: player.facing -= 2; break;
case SDLK_RIGHT: player.facing += 2; break;
case SDLK_a: player.facing -= 2; break;
case SDLK_d: player.facing += 2; break;
case SDLK_SPACE:
// printf("space down\n\n\n\n\n\n\n\n\n\n\n\n\n");
if(bullet.alive == 0){
init_bullet() ;
bullet.facing += 8;
shoot_time ++;
}
break;
}
}
//If a key was released
else if( event.type == SDL_KEYUP )
{
//Adjust the velocity
switch( event.key.keysym.sym ) {
case SDLK_LEFT: player.facing += 2; break;
case SDLK_RIGHT: player.facing -= 2; break;
case SDLK_a: player.facing += 2; break;
case SDLK_d: player.facing -= 2; break;
// case SDLK_SPACE: printf("space up\n\n\n\n\n\n\n\n\n\n\n\n"); break;
}
}
}
int main(int argc, char const *argv[])
{
const int FPS = 60;
const int MAX_BULLETS = 10;
const int MAX_ASTEROIDS = 10;
const int MAX_EXPLOSIONS = 10;
srand(time(NULL));
int done = 0;
int redraw = 1;
if(!al_init())
{
al_show_native_message_box(NULL, "Error", "Error",
"Could not initialize Allegro 5.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
ALLEGRO_DISPLAY *display = al_create_display(screen_width, screen_height);
if(!display)
{
al_show_native_message_box(NULL, "Error", "Error",
"Could not create display.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
ALLEGRO_EVENT_QUEUE *event_queue = al_create_event_queue();
if(!event_queue)
{
al_show_native_message_box(display, "Error", "Error",
"Could not create event queue.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
ALLEGRO_TIMER *timer = al_create_timer(1.0/FPS);
if(!timer)
{
al_show_native_message_box(display, "Error", "Error",
"Could not create timer.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
if(!al_install_keyboard())
{
al_show_native_message_box(display, "Error", "Error",
"Could not install keyboard.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
if(!al_install_mouse())
{
al_show_native_message_box(display, "Error", "Error",
"Could not install mouse.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
if(!al_init_image_addon())
{
al_show_native_message_box(display, "Error", "Error",
"Could not initialize image addon.", 0, ALLEGRO_MESSAGEBOX_ERROR);
return -1;
}
if(!al_init_primitives_addon())
{
al_show_native_message_box(display, "Error", "Error",
"Could not initialize primitives addon.", 0, ALLEGRO_MESSAGEBOX_ERROR);
}
al_init_font_addon(); // for whatever reason this function is void returning
if(!al_init_ttf_addon())
{
al_show_native_message_box(display, "Error", "Error",
"Could not initialize ttf addon.", 0, ALLEGRO_MESSAGEBOX_ERROR);
}
al_hide_mouse_cursor(display);
al_register_event_source(event_queue, al_get_mouse_event_source());
al_register_event_source(event_queue, al_get_keyboard_event_source());
al_register_event_source(event_queue, al_get_display_event_source(display));
al_register_event_source(event_queue, al_get_timer_event_source(timer));
ALLEGRO_FONT *font18 = al_load_font("Arial.ttf", 18, 0);
int prev_x = screen_width, prev_y = screen_height;
int fps_counter = 0;
int fps_counter2 = 0;
int i, j, k;
struct spaceship ship;
init_ship(&ship);
struct bullet bullets[MAX_BULLETS];
for(i = 0; i < MAX_BULLETS; i++)
{
init_bullet(&bullets[i]);
}
struct asteroid asteroids[MAX_ASTEROIDS];
for(i = 0; i < MAX_ASTEROIDS; i++)
{
init_asteroid(&asteroids[i]);
}
struct explosion explosions[MAX_EXPLOSIONS];
for(i = 0; i < MAX_EXPLOSIONS; i++)
{
init_explosion(&explosions[i]);
}
al_start_timer(timer);
while(!done)
{
ALLEGRO_EVENT event;
al_wait_for_event(event_queue, &event);
if(event.type == ALLEGRO_EVENT_DISPLAY_CLOSE)
{
done = 1;
}
if(event.type == ALLEGRO_EVENT_KEY_DOWN)
{
switch(event.keyboard.keycode)
{
case ALLEGRO_KEY_Q:
done = 1;
break;
case ALLEGRO_KEY_ESCAPE:
done = 1;
break;
}
}
if(event.type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN)
{
if(event.mouse.button & 1)
{
for(i = 0; i < MAX_BULLETS; i++)
{
if(!bullets[i].live)
{
fire_bullet(&bullets[i], ship);
break;
}
}
}
}
if(event.type == ALLEGRO_EVENT_MOUSE_AXES ||
event.type == ALLEGRO_EVENT_MOUSE_ENTER_DISPLAY)
{
set_ship_coordinates(&ship, event.mouse.x, event.mouse.y);
}
if(event.type == ALLEGRO_EVENT_TIMER)
{
if(ship.x > prev_x)
{
ship.sprite.dir_horizontal = RIGHT;
}
else if(ship.x == prev_x)
{
ship.sprite.dir_horizontal = CENTER;
}
else if(ship.x < prev_x)
{
ship.sprite.dir_horizontal = LEFT;
}
if(ship.y > prev_y)
{
ship.sprite.dir_vertical = BACK;
}
else if(ship.y == prev_y)
{
ship.sprite.dir_vertical = NEUTRAL;
}
else if(ship.y < prev_y)
{
ship.sprite.dir_vertical = FORWARD;
}
if(++fps_counter >= FPS / 5)
{
fps_counter = 0;
prev_x = ship.x;
prev_y = ship.y;
}
if(++fps_counter2 >= 2 * FPS)
{
for(i = 0; i < MAX_ASTEROIDS; i++)
{
if(!asteroids[i].live)
{
start_asteroid(&asteroids[i]);
break;
}
}
fps_counter2 = 0;
}
for(i = 0; i < MAX_BULLETS; i++)
{
if(bullets[i].live)
{
update_bullet(&bullets[i]);
}
}
for(i = 0; i < MAX_ASTEROIDS; i++)
{
if(asteroids[i].live)
{
update_asteroid(&asteroids[i], &ship);
}
}
for(i = 0; i < MAX_EXPLOSIONS; i++)
{
if(explosions[i].live)
{
update_explosion(&explosions[i]);
}
}
update_ship_boundaries(&ship);
for(i = 0; i < MAX_BULLETS; i++)
{
if(bullets[i].live)
{
for(j = 0; j < MAX_ASTEROIDS; j++)
{
if(asteroids[j].live)
{
if(bullet_and_asteroid_collision(bullets[i], asteroids[j]))
{
bullets[i].live = 0;
asteroids[j].live = 0;
ship.score += 20;
for(k = 0; k < MAX_EXPLOSIONS; k++)
{
if(!explosions[k].live)
{
start_explosion(&explosions[k], bullets[i].x, bullets[i].y);
break;
}
}
}
}
}
}
}
for(i = 0; i < MAX_ASTEROIDS; i++)
{
if(asteroids[i].live)
{
if(ship_and_asteroid_collision(ship, asteroids[i]))
{
asteroids[i].live = 0;
for(k = 0; k < MAX_EXPLOSIONS; k++)
{
if(!explosions[k].live)
{
start_explosion(&explosions[k], ship.x, ship.y);
break;
}
}
ship.lives--;
}
}
}
if(!ship.lives)
{
done = true;
}
redraw = 1;
}
if(redraw)
{
redraw = 0;
draw_ship_sprite(ship.sprite, ship.x, ship.y);
for(i = 0; i < MAX_BULLETS; i++)
{
if(bullets[i].live)
{
draw_bullet(bullets[i]);
}
}
for(i = 0; i < MAX_ASTEROIDS; i++)
{
if(asteroids[i].live)
{
draw_asteroid(asteroids[i]);
}
}
for(i = 0; i < MAX_EXPLOSIONS; i++)
{
if(explosions[i].live)
{
draw_explosion(explosions[i]);
}
}
al_draw_textf(font18, al_map_rgb(255, 255, 255), 50, 5, 0,
"Score: %d ", ship.score); // I have no idea why it doesn't print the S...
al_draw_textf(font18, al_map_rgb(255, 255, 255), 50, 25, 0,
"Lives: %d", ship.lives);
al_flip_display();
al_clear_to_color(al_map_rgb(0, 0, 0));
}
}
for(i = 0; i < MAX_ASTEROIDS; i++)
{
destroy_asteroid(&asteroids[i]);
}
for(i = 0; i < MAX_EXPLOSIONS; i++)
{
destroy_explosion(&explosions[i]);
}
destroy_sprite(&ship.sprite);
al_destroy_display(display);
al_destroy_event_queue(event_queue);
al_destroy_timer(timer);
al_destroy_font(font18);
return 0;
}
int main(void)
{
bool done =false;
bool redraw = true;
ALLEGRO_DISPLAY *display = NULL;
ALLEGRO_TIMER *timer =NULL;
ALLEGRO_EVENT_QUEUE *event_queue = NULL;
SpaceShip ship;
Bullet bullet[num_bullets];
Commet commet[num_commets];
if(!al_init())
{
fprintf(stderr,"allegro is not intialized");
return -1;
}
display = al_create_display(SCREEN_W,SCREEN_H);
if(!display)
{
fprintf(stderr,"failed to intialize the display");
return -1;
}
timer = al_create_timer(1.0/FPS);
if(!timer)
{
fprintf(stderr,"failed to intialize timer");
al_destroy_display(display);
return -1;
}
event_queue = al_create_event_queue();
if(!event_queue)
{
fprintf(stderr,"failed to create event queue");
al_destroy_display(display);
al_destroy_timer(timer);
return -1;
}
al_install_keyboard();
al_register_event_source(event_queue,al_get_timer_event_source(timer));
al_register_event_source(event_queue,al_get_keyboard_event_source());
al_register_event_source(event_queue,al_get_display_event_source(display));
init_ship(&ship);
init_bullet(&bullet);
init_commet(&commet);
al_start_timer(timer);
while(!done)
{
ALLEGRO_EVENT ev;
al_wait_for_event(event_queue,&ev);
if(ev.type == ALLEGRO_EVENT_TIMER)
{
if(keys[KEY_UP])
{
move_ship_up(&ship);
}
if(keys[KEY_DOWN])
{
move_ship_down(&ship);
}if(keys[KEY_LEFT])
{
move_ship_left(&ship);
}
if(keys[KEY_RIGHT])
{
move_ship_right(&ship);
}
if(keys[KEY_SPACEBAR])
{
fire_bullet(&bullet,&ship);
}
if(!GameOver)
{
update_bullet(&bullet);
update_commet(&commet);
bullet_collision(&bullet,&commet);
}
redraw = true;
}
else if(ev.type==ALLEGRO_EVENT_DISPLAY_CLOSE)
{
done = true;
}
else if(ev.type == ALLEGRO_EVENT_KEY_DOWN)
{
switch(ev.keyboard.keycode)
{
case ALLEGRO_KEY_UP:
{
keys[KEY_UP]=true;
break;
}
case ALLEGRO_KEY_DOWN:
{
keys[KEY_DOWN]=true;
break;
}
case ALLEGRO_KEY_LEFT:
{
keys[KEY_LEFT]=true;
break;
}
case ALLEGRO_KEY_RIGHT :
{
keys[KEY_RIGHT]=true;
break;
}
case ALLEGRO_KEY_SPACE:
{
keys[KEY_SPACEBAR] = true;
break;
}
}
}
else if(ev.type == ALLEGRO_EVENT_KEY_UP)
{
switch(ev.keyboard.keycode)
{
case ALLEGRO_KEY_UP:
{
keys[KEY_UP]=false;
break;
}
case ALLEGRO_KEY_DOWN:
{
keys[KEY_DOWN]=false;
break;
}
case ALLEGRO_KEY_LEFT:
{
keys[KEY_LEFT]=false;
break;
}
case ALLEGRO_KEY_RIGHT :
{
keys[KEY_RIGHT]=false;
break;
}
case ALLEGRO_KEY_SPACE:
{
keys[KEY_SPACEBAR]=false;
break;
}
}
}
if(redraw && al_event_queue_is_empty(event_queue))
{
redraw = false ;
al_clear_to_color(al_map_rgb(255,100,100));
draw_ship(&ship);
draw_bullet(bullet);
draw_commet(commet);
al_flip_display();
al_clear_to_color(al_map_rgb(255,100,100));
}
}
al_destroy_display(display);
al_destroy_timer(timer);
al_destroy_event_queue(event_queue);
return 0;
}