//inicializacni funkce pri zacatku hry
void init_game() {
//pocatecni pozice, rychlost a hp raketky
posx=0;
posy=-300;
speedx=speedy=0;
hp=1;
//hrac muze hned strilet
reload=0;
//promenne pro zachovani hlavnich statistik hry
level=0;
plevel=0;
score=0;
//na zacatku hrac zije
playerdead=0;
//cas od smrti hrace nakonci
deathtimer=0;
//trvani bonusu
shieldtimer=0;
canontimer=0;
init_stars();
init_bullets();
init_enemies();
init_particles();
init_bonuses();
}
/* the main game function */
static int play_game()
{
ALLEGRO_TIMER *inc_counter;
int gameover = 0;
int cyclenum = 0;
/* init */
score = 0;
init_view();
init_player();
init_badguys();
init_bullets();
init_explode();
init_message();
#define TIMER_SPEED ALLEGRO_BPS_TO_SECS(30*(cyclenum+2))
inc_counter = al_create_timer(TIMER_SPEED);
al_start_timer(inc_counter);
while (!gameover) {
/* move everyone */
while ((al_get_timer_count(inc_counter) > 0) && (!gameover)) {
update_view();
update_bullets();
update_explode();
update_message();
if (update_badguys()) {
if (advance_view()) {
cyclenum++;
al_set_timer_count(inc_counter, 0);
lay_attack_wave(TRUE);
advance_player(TRUE);
}
else {
lay_attack_wave(FALSE);
advance_player(FALSE);
}
}
gameover = update_player();
al_set_timer_count(inc_counter, al_get_timer_count(inc_counter)-1);
}
/* take a screenshot? */
if (key[ALLEGRO_KEY_PRINTSCREEN]) {
static int ss_count = 0;
char fname[80];
sprintf(fname, "speed%03d.tga", ++ss_count);
al_save_bitmap(fname, al_get_backbuffer(screen));
while (key[ALLEGRO_KEY_PRINTSCREEN])
poll_input_wait();
al_set_timer_count(inc_counter, 0);
}
/* toggle fullscreen window */
if (key[ALLEGRO_KEY_F]) {
int flags = al_get_display_flags(screen);
al_set_display_flag(screen, ALLEGRO_FULLSCREEN_WINDOW,
!(flags & ALLEGRO_FULLSCREEN_WINDOW));
while (key[ALLEGRO_KEY_F])
poll_input_wait();
}
/* draw everyone */
draw_view();
}
/* cleanup */
al_destroy_timer(inc_counter);
shutdown_view();
shutdown_player();
shutdown_badguys();
shutdown_bullets();
shutdown_explode();
shutdown_message();
if (gameover < 0) {
sfx_ping(1);
return FALSE;
}
return TRUE;
}
void begin_game(void)
{
int i;
counter = 0;
init_structs_etc();
for (i = 0; i < NO_ACTORS; i ++)
{
actor[i].in_play = 0;
}
player[0].score = 0;
player[1].score = 0;
if (game.type == GAME_SINGLE || game.type == GAME_TIME_ATTACK)
{
game.users = 1;
actor[0].in_play = 0;
player[game.single_player].actor_controlled = 0;
// player[0].ships_left = 3;
game.ships_left = 3;
actor[0].controller = game.single_player;
init_actor(0, player[game.single_player].ship); //ACTORTYPE_SHIP);
}
if (game.type == GAME_COOP || game.type == GAME_DUEL || game.type == GAME_TIME_ATTACK_COOP)
{
game.users = 2;
actor[0].in_play = 0;
player[0].actor_controlled = 0;
// player[0].ships_left = 3;
actor[0].controller = 0;
init_actor(0, player[0].ship); //ACTORTYPE_SHIP);
actor[1].in_play = 0;
player[1].actor_controlled = 1;
// player[1].ships_left = 3;
actor[1].controller = 1;
init_actor(1, player[1].ship); //ACTORTYPE_SHIP);
game.ships_left = 6;
}
init_bullets();
init_clouds();
// init_stars();
init_enemies();
prepare_display();
game.drag = 0.013;//955;//9999;
/*
arena.max_x = 894000;
arena.max_y = 895000;
*/
arena.level = 0;
game.symbols_given = 0;
init_level();
long_slacktime = 0;
arena.waver_on_level = 0;
}
//Main program
int main() {
/* Initialize SDL’s video system and check for errors */
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("Unable to initialize SDL: %s\n", SDL_GetError());
return 1;
}
/* Make sure SDL_Quit gets called when the program exits! */
atexit(SDL_Quit);
/*set window title*/
SDL_WM_SetCaption("Essi Invaders", "P");
/* Attempt to set a 800x600 8 bit color video mode */
screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, 8, SDL_DOUBLEBUF );
if (screen == NULL) {
printf("Unable to set video mode: %s\n", SDL_GetError());
return 1;
}
//load images
load_image("titlescreen.bmp", &title_screen, magenta);
load_image("cmap.bmp", &cmap, magenta);
load_image("target1.bmp", &invaders_img[0], magenta);
load_image("target2.bmp", &invaders_img[1], magenta);
load_image("target3.bmp", &invaders_img[2], magenta);
load_image("target4.bmp", &invaders_img[3], magenta);
load_image("target5.bmp", &invaders_img[4], magenta);
load_image("target6.bmp", &invaders_img[5], magenta);
load_image("target7.bmp", &invaders_img[6], magenta);
load_image("target8.bmp", &invaders_img[7], magenta);
load_image("target9.bmp", &invaders_img[8], magenta);
load_image("target10.bmp", &invaders_img[9], magenta);
load_image("target11.bmp", &invaders_img[10], magenta);
load_image("target12.bmp", &invaders_img[11], magenta);
load_image("spaceship.bmp", &player_img, magenta);
load_image("essi.bmp", &logo_img, magenta);
load_image("saucer.bmp", &saucer_img, magenta);
load_image("gameover.bmp", &game_over_img, magenta);
load_image("damage.bmp", &damage_img, lime);
load_image("damagetop.bmp", &damage_top_img, lime);
Uint32 next_game_tick = SDL_GetTicks();
int sleep = 0;
Uint8 *keystate = 0;
int quit = 0;
SDL_Event event;
init_score();
init_bases();
init_misil();
init_invaders();
init_player();
init_saucer();
init_bullets(bullets, P_BULLETS);
init_bullets(enemy_bullets, E_BULLETS);
state = menu;
title_time = SDL_GetTicks();
/* Animation */
while (quit == 0) {
/* Grab a snapshot of the keyboard. */
keystate = SDL_GetKeyState(NULL);
while (SDL_PollEvent(&event)) {
switch(event.type) {
case SDL_KEYDOWN:
switch( event.key.keysym.sym ) {
//exit out of game loop if escape is pressed
case SDLK_ESCAPE:
quit = 1;
break;
case SDLK_SPACE:
if (state == menu) {
state = game;
} else if (state == game){
player_shoot();
saucer_ai();
} else if (state == game_over) {
init_invaders();
init_bases();
init_score();
init_player();
state = game;
match = -1;
}
break;
default:
break;
}
break;
case SDL_KEYUP:
switch( event.key.keysym.sym ) {
case SDLK_UP:
move_misil(up);
break;
case SDLK_DOWN:
move_misil(down);
break;
default:
break;
}
}
}
draw_background();
if (state == menu) {
char s[] = "Press SPACEBAR to start";
SDL_Rect src[60];
int i;
if (title_time + 2000 < SDL_GetTicks()) {
src[0].x = (SCREEN_WIDTH/100)*30; //Yellow Background of Space Invaders
src[0].y = 40;
src[0].w = 440;
src[0].h = 230;
SDL_FillRect(screen, &src[0], 248);
} else {
int y = 0;
for (i = 0; i < 60; i++) {
src[i].x = 0;
src[i].y = y;
src[i].w = SCREEN_WIDTH;
src[i].h = 10;
SDL_FillRect(screen, &src[i], 227);
y += 10;
}
for (i = 0; i < 60; i++) {
SDL_FillRect(screen, &src[i], rand() % 255);
}
}
draw_title_screen();
draw_string(s, (SCREEN_WIDTH / 2) - (strlen(s) * 10), 500);
} else if (state == game) {
//move player
if (keystate[SDLK_LEFT]) {
move_player(left);
}
if (keystate[SDLK_RIGHT]) {
move_player(right);
}
draw_hud();
draw_player();
draw_bases();
draw_invaders();
draw_saucer();
draw_serviceProjectMatch(match);
draw_bullets(bullets, P_BULLETS);
draw_bullets(enemy_bullets, E_BULLETS);
enemy_hit_collision();
player_hit_collision();
enemy_base_collision();
saucer_hit_collision();
bullet_base_collision(enemy_bullets, E_BULLETS, 1);
bullet_base_collision(bullets, P_BULLETS, 0);
enemy_player_collision();
move_invaders(invaders.speed);
move_saucer();
movenemy_bullets(bullets, P_BULLETS, -30);
movenemy_bullets(enemy_bullets, E_BULLETS, 15);
calculate_level();
enemy_ai();
game_over_ai();
pause_game();
} else if (state == game_over) {
draw_hud();
draw_player();
draw_bases();
draw_invaders();
draw_saucer();
draw_bullets(bullets, P_BULLETS);
draw_bullets(enemy_bullets, E_BULLETS);
draw_game_over();
} else if (state == pause) {
draw_hud();
draw_player();
draw_bases();
draw_invaders();
draw_saucer();
draw_bullets(bullets, P_BULLETS);
draw_bullets(enemy_bullets, E_BULLETS);
pause_game();
}
/* Ask SDL to update the entire screen. */
SDL_Flip(screen);
next_game_tick += 1000 / 30;
sleep = next_game_tick - SDL_GetTicks();
if( sleep >= 0 ) {
SDL_Delay(sleep);
}
}
return 0;
}
void begin_game(void)
{
int i;
counter = 0;
init_structs_etc();
for (i = 0; i < NO_ACTORS; i ++)
{
actor[i].in_play = 0;
}
player[0].score = 0;
player[1].score = 0;
if (game.type == GAME_SINGLE)
{
game.users = 1;
actor[0].in_play = 0;
player[game.single_player].actor_controlled = 0;
// player[0].ships_left = 3;
game.ships_left = 3;
actor[0].controller = game.single_player;
init_actor(0, player[game.single_player].ship); //ACTORTYPE_SHIP);
}
else
{
game.users = 2;
actor[0].in_play = 0;
player[0].actor_controlled = 0;
// player[0].ships_left = 3;
actor[0].controller = 0;
init_actor(0, player[0].ship); //ACTORTYPE_SHIP);
actor[1].in_play = 0;
player[1].actor_controlled = 1;
// player[1].ships_left = 3;
actor[1].controller = 1;
init_actor(1, player[1].ship); //ACTORTYPE_SHIP);
game.ships_left = 6;
}
init_bullets();
init_clouds();
init_enemies();
prepare_display();
game.drag = 0.013;//955;//9999;
/*
arena.max_x = 894000;
arena.max_y = 895000;
*/
arena.level = 0;
init_level();
}