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main.c
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#include <stdio.h>
#include <allegro5/allegro.h>
#include <allegro5/allegro_primitives.h>
#include <allegro5/allegro_image.h>
#include <allegro5/allegro_font.h>
#include <allegro5/allegro_ttf.h>
#include <allegro5/allegro_audio.h>
#include <allegro5/allegro_acodec.h>
#include <allegro5/allegro_video.h>
#include <math.h>
// If defined, logs will be shown on console and written to file.
// If commented out, logs will not be shown nor be saved.
#define LOG_ENABLED
/* Constants. */
// Frame rate (frame per second)
const int FPS = 60;
// Display (screen) width.
const int SCREEN_W = 800;
// Display (screen) height.
const int SCREEN_H = 600;
// At most 10 audios can be played at a time.
const int RESERVE_SAMPLES = 10;
// Same as:
// const int SCENE_MENU = 1;
// const int SCENE_START = 2;
enum {
SCENE_MENU = 1,
SCENE_START = 2,
// [HACKATHON 3-7]
// TODO: Declare a new scene id.
SCENE_SETTINGS = 3,
SCENE_PICK = 4,
SCENE_END1 = 5,
SCENE_END2 = 6,
SCENE_END3 = 7,
SCENE_INTRO1 = 8,
SCENE_INTRO2 = 9,
SCENE_INTRO3 = 10,
SCENE_INTRO4 = 11
};
/* Input states */
// The active scene id.
int active_scene;
// Keyboard state, whether the key is down or not.
bool key_state[ALLEGRO_KEY_MAX];
// Mouse state, whether the key is down or not.
// 1 is for left, 2 is for right, 3 is for middle.
bool *mouse_state;
// Mouse position.
int mouse_x, mouse_y;
// TODO: More variables to store input states such as joysticks, ...
float volume = 1;
/* Variables for allegro basic routines. */
int score = 0;
float plane_speed = 1.0f;
ALLEGRO_DISPLAY* game_display;
ALLEGRO_EVENT_QUEUE* game_event_queue;
ALLEGRO_TIMER* game_update_timer;
/* Shared resources*/
ALLEGRO_FONT* font_pirulen_100;
ALLEGRO_FONT* font_pirulen_60;
ALLEGRO_FONT* font_pirulen_32;
ALLEGRO_FONT* font_pirulen_24;
ALLEGRO_BITMAP* black_background;
/* Menu Scene resources*/
ALLEGRO_BITMAP* main_img_background;
ALLEGRO_BITMAP* img_settings;
ALLEGRO_BITMAP* img_settings2;
ALLEGRO_BITMAP* img_intro1;
ALLEGRO_BITMAP* img_intro2;
ALLEGRO_BITMAP* img_pg_intro1;
ALLEGRO_BITMAP* img_pg_intro2;
ALLEGRO_BITMAP* img_pg_intro3;
ALLEGRO_BITMAP* img_pg_intro4;
ALLEGRO_BITMAP* img_pre_pg1;
ALLEGRO_BITMAP* img_pre_pg2;
ALLEGRO_BITMAP* img_next_pg1;
ALLEGRO_BITMAP* img_next_pg2;
ALLEGRO_BITMAP* img_home_pg1;
ALLEGRO_BITMAP* img_home_pg2;
ALLEGRO_SAMPLE* main_bgm;
ALLEGRO_SAMPLE_ID main_bgm_id;
ALLEGRO_SAMPLE* setting_bgm;
ALLEGRO_SAMPLE_ID setting_bgm_id;
ALLEGRO_BITMAP* img_plus;
ALLEGRO_BITMAP* img_plus2;
ALLEGRO_BITMAP* img_minus;
ALLEGRO_BITMAP* img_minus2;
#define MAX_TIME 20;
#define MAX_BLOOD 40;
/* Start Scene resources*/
double last_count_time = 0.f;
int cur_length = MAX_TIME;
ALLEGRO_BITMAP* start_img_loading;
ALLEGRO_BITMAP* start_img_background;
ALLEGRO_BITMAP* start_img_plane;
ALLEGRO_BITMAP* start_img_plane1;
ALLEGRO_BITMAP* start_img_plane2;
ALLEGRO_BITMAP* start_img_plane3;
ALLEGRO_BITMAP* start_img_enemy;
ALLEGRO_BITMAP* end2_background;
ALLEGRO_BITMAP* end3_background;
ALLEGRO_BITMAP* img_explosion[9];
ALLEGRO_BITMAP* menu_img_background;
ALLEGRO_SAMPLE* start_bgm;
ALLEGRO_SAMPLE_ID start_bgm_id;
ALLEGRO_SAMPLE* beat_bgm;
ALLEGRO_SAMPLE_ID beat_bgm_id;
ALLEGRO_BITMAP* img_heart;
ALLEGRO_BITMAP* img_enemy[4];
ALLEGRO_BITMAP* img_blood;
ALLEGRO_SAMPLE_ID laser_bgm_id;
ALLEGRO_SAMPLE* laser_bgm;
ALLEGRO_SAMPLE* shot_bgm;
ALLEGRO_SAMPLE_ID shot_bgm_id;
ALLEGRO_SAMPLE* explosion_bgm;
ALLEGRO_SAMPLE_ID explosion_bgm_id;
ALLEGRO_SAMPLE* beep_bgm;
ALLEGRO_SAMPLE_ID beep_bgm_id;
ALLEGRO_BITMAP* img_timeup;
ALLEGRO_SAMPLE* lose_bgm;
ALLEGRO_SAMPLE_ID lose_bgm_id;
ALLEGRO_SAMPLE* win_bgm;
ALLEGRO_SAMPLE_ID win_bgm_id;
ALLEGRO_SAMPLE* flip_bgm;
ALLEGRO_SAMPLE_ID flip_bgm_id;
float time_up_size = 1.f;
int first = 1;
int end = 0;
/* Pick Scene resources*/
ALLEGRO_BITMAP* pick_img_background;
ALLEGRO_BITMAP* pick_img_plane1;
ALLEGRO_BITMAP* pick_img_plane2;
ALLEGRO_BITMAP* pick_img_plane3;
ALLEGRO_SAMPLE* pick_bgm;
ALLEGRO_SAMPLE_ID pick_bgm_id;
ALLEGRO_SAMPLE* confirm_bgm;
ALLEGRO_SAMPLE_ID confirm_bgm_id;
ALLEGRO_SAMPLE* air_bgm;
ALLEGRO_SAMPLE_ID air_bgm_id;
int character = 0;
int change = 1;
ALLEGRO_BITMAP* img_bullet;
typedef struct {
// The center coordinate of the image.
float x, y;
// The width and height of the object.
float w, h;
// The velocity in x, y axes.
float vx, vy;
// Should we draw this object on the screen.
bool hidden;
bool explosion;
int life;
int bullet;
int type;
// The pointer to the object’s image.
ALLEGRO_BITMAP* img;
} MovableObject;
void draw_movable_object(MovableObject obj);
#define MAX_ENEMY 3
#define MAX_BULLET 5
#define MAX_LIFE 3
int BULLET;
int blood = 40;
int step = 0;
MovableObject plane;
MovableObject enemies[MAX_ENEMY];
int enemies_get_shot[MAX_ENEMY] = {0};
MovableObject bullets[MAX_BULLET];
const float MAX_COOLDOWN = 0.2f;
double last_shoot_timestamp = 0.0f;
double last_plane_OFB = 0.0f;
/* Declare function prototypes. */
// Initialize allegro5 library
void allegro5_init(void);
// Initialize variables and resources.
// Allows the game to perform any initialization it needs before
// starting to run.
void game_init(void);
// Process events inside the event queue using an infinity loop.
void game_start_event_loop(void);
// Run game logic such as updating the world, checking for collision,
// switching scenes and so on.
// This is called when the game should update its logic.
void game_update(void);
// Draw to display.
// This is called when the game should draw itself.
void game_draw(void);
// Release resources.
// Free the pointers we allocated.
void game_destroy(void);
// Function to change from one scene to another.
void game_change_scene(int next_scene);
// Load resized bitmap and check if failed.
ALLEGRO_BITMAP *load_bitmap_resized(const char *filename, int w, int h);
// [HACKATHON 3-2]
// TODO: Declare a function.
// Determines whether the point (px, py) is in rect (x, y, w, h).
// Uncomment the code below.
bool pnt_in_rect(int px, int py, int x, int y, int w, int h);
/* Event callbacks. */
void on_key_down(int keycode);
void on_mouse_down(int btn, int x, int y);
/* Declare function prototypes for debugging. */
// Display error message and exit the program, used like 'printf'.
// Write formatted output to stdout and file from the format string.
// If the program crashes unexpectedly, you can inspect "log.txt" for
// further information.
void game_abort(const char* format, ...);
// Log events for later debugging, used like 'printf'.
// Write formatted output to stdout and file from the format string.
// You can inspect "log.txt" for logs in the last run.
void game_log(const char* format, ...);
// Log using va_list.
void game_vlog(const char* format, va_list arg);
int main(int argc, char** argv) {
// Set random seed for better random outcome.
srand(time(NULL));
allegro5_init();
game_log("Allegro5 initialized");
game_log("Game begin");
// Initialize game variables.
game_init();
game_log("Game initialized");
// Draw the first frame.
game_draw();
game_log("Game start event loop");
// This call blocks until the game is finished.
game_start_event_loop();
game_log("Game end");
game_destroy();
return 0;
}
void allegro5_init(void) {
if (!al_init())
game_abort("failed to initialize allegro");
// Initialize add-ons.
if(!al_init_video_addon())
game_abort("failed to initialize video add-on");
if (!al_init_primitives_addon())
game_abort("failed to initialize primitives add-on");
if (!al_init_font_addon())
game_abort("failed to initialize font add-on");
if (!al_init_ttf_addon())
game_abort("failed to initialize ttf add-on");
if (!al_init_image_addon())
game_abort("failed to initialize image add-on");
if (!al_install_audio())
game_abort("failed to initialize audio add-on");
if (!al_init_acodec_addon())
game_abort("failed to initialize audio codec add-on");
if (!al_reserve_samples(RESERVE_SAMPLES))
game_abort("failed to reserve samples");
if (!al_install_keyboard())
game_abort("failed to install keyboard");
if (!al_install_mouse())
game_abort("failed to install mouse");
// TODO: Initialize other addons such as video, ...
// Setup game display.
game_display = al_create_display(SCREEN_W, SCREEN_H);
if (!game_display)
game_abort("failed to create display");
al_set_window_title(game_display, "I2P(I)_2020 Final Project <109062312>");
// Setup update timer.
game_update_timer = al_create_timer(1.0f / FPS);
if (!game_update_timer)
game_abort("failed to create timer");
// Setup event queue.
game_event_queue = al_create_event_queue();
if (!game_event_queue)
game_abort("failed to create event queue");
// Malloc mouse buttons state according to button counts.
const unsigned m_buttons = al_get_mouse_num_buttons();
game_log("There are total %u supported mouse buttons", m_buttons);
// mouse_state[0] will not be used.
mouse_state = malloc((m_buttons + 1) * sizeof(bool));
memset(mouse_state, false, (m_buttons + 1) * sizeof(bool));
// Register display, timer, keyboard, mouse events to the event queue.
al_register_event_source(game_event_queue, al_get_display_event_source(game_display));
al_register_event_source(game_event_queue, al_get_timer_event_source(game_update_timer));
al_register_event_source(game_event_queue, al_get_keyboard_event_source());
al_register_event_source(game_event_queue, al_get_mouse_event_source());
// Start the timer to update and draw the game.
al_start_timer(game_update_timer);
}
void game_init(void) {
/* Shared resources*/
font_pirulen_100 = al_load_font("pirulen.ttf", 100, 0);
if (!font_pirulen_100)
game_abort("failed to load font: pirulen.ttf with size 100");
font_pirulen_60 = al_load_font("pirulen.ttf", 60, 0);
if (!font_pirulen_60)
game_abort("failed to load font: pirulen.ttf with size 60");
font_pirulen_32 = al_load_font("pirulen.ttf", 32, 0);
if (!font_pirulen_32)
game_abort("failed to load font: pirulen.ttf with size 32");
font_pirulen_24 = al_load_font("pirulen.ttf", 24, 0);
if (!font_pirulen_24)
game_abort("failed to load font: pirulen.ttf with size 24");
end2_background = load_bitmap_resized("end2.jpg", SCREEN_W, SCREEN_H);
end3_background = load_bitmap_resized("end3.jpg", SCREEN_W, SCREEN_H);
black_background = load_bitmap_resized("black.png", SCREEN_W, SCREEN_H);
img_intro1 = load_bitmap_resized("intro1.png", 150, 150);
img_intro2 = load_bitmap_resized("intro2.png", 150, 150);
img_pg_intro1= load_bitmap_resized("pg1.png", SCREEN_W, SCREEN_H);
img_pg_intro2 = load_bitmap_resized("pg2.png", SCREEN_W, SCREEN_H);
img_pg_intro3 = load_bitmap_resized("pg3.png", SCREEN_W, SCREEN_H);
img_pg_intro4 = load_bitmap_resized("pg4.png", SCREEN_W, SCREEN_H);
img_pre_pg1= load_bitmap_resized("pre_page1.png", 60, 60);
img_pre_pg2 = load_bitmap_resized("pre_page2.png", 60, 60);
img_next_pg1 = load_bitmap_resized("next_page1.png", 60, 60);
img_next_pg2 = load_bitmap_resized("next_page2.png", 60, 60);
img_home_pg1 = load_bitmap_resized("home_page1.png", 60, 60);
img_home_pg2 = load_bitmap_resized("home_page2.png", 60, 60);
/* Menu Scene resources*/
main_img_background = load_bitmap_resized("background.jpg", SCREEN_W, SCREEN_H);
main_bgm = al_load_sample("S31-Night Prowler.ogg");
if (!main_bgm)
game_abort("failed to load audio: S31-Night Prowler.ogg");
img_settings = al_load_bitmap("settings.png");
if (!img_settings)
game_abort("failed to load image: settings.png");
img_settings2 = al_load_bitmap("settings2.png");
if (!img_settings2)
game_abort("failed to load image: settings2.png");
/* Pick Scene resources*/
pick_img_background = load_bitmap_resized("pick.jpg", SCREEN_W, SCREEN_H);
if (!pick_img_background)
game_abort("failed to load image: pick.jpg");
pick_img_plane1 = load_bitmap_resized("plane1.png", 150, 250);
if (!pick_img_plane1)
game_abort("failed to load image: plane1.png");
pick_img_plane2 = load_bitmap_resized("plane2_blur.png", 150, 250);
if (!pick_img_plane2)
game_abort("failed to load image: plane2_blur.png");
pick_img_plane3 = load_bitmap_resized("plane3_blur.png", 150, 250);
if (!pick_img_plane3)
game_abort("failed to load image: plane3_blur.png");
pick_bgm = al_load_sample("pick_bgm.ogg");
if (!pick_bgm)
game_abort("failed to load audio: pick_bgm.ogg");
confirm_bgm= al_load_sample("confirm_bgm.ogg");
if (!confirm_bgm)
game_abort("failed to load audio: confirm_bgm.ogg");
air_bgm = al_load_sample("air_sound.ogg");
if (!air_bgm)
game_abort("failed to load audio: air_sound.ogg");
flip_bgm = al_load_sample("flip.mp3");
if (!flip_bgm)
game_abort("failed to load audio: flip.mp3");
/* Setting Scene resources*/
img_plus = load_bitmap_resized("plus.png",150,150);
if (!img_plus)
game_abort("failed to load image: settings.png");
img_plus2 = load_bitmap_resized("plus2.png",150,150);
if (!img_plus2)
game_abort("failed to load image: plus2.png");
img_minus = load_bitmap_resized("minus.png",150,150);
if (!img_minus)
game_abort("failed to load image: minus.png");
img_minus2 = load_bitmap_resized("minus2.png",150,150);
if (!img_minus2)
game_abort("failed to load image: minus2.png");
/* Start Scene resources*/
start_img_background = load_bitmap_resized("galaxy.jpg", SCREEN_W, SCREEN_H);
img_blood=load_bitmap_resized("blood.png", 10, 40);
if (!img_blood)
game_abort("failed to load image: blood.png");
start_img_loading = load_bitmap_resized("loading.png", 10, 15);
if (!start_img_loading)
game_abort("failed to load image: loading.png");
start_img_plane = al_load_bitmap("rocket-2.png");
if (!start_img_plane)
game_abort("failed to load image: rocket-2.png");
start_img_plane1= load_bitmap_resized("pln1.png", 75, 57);
if (!start_img_plane1)
game_abort("failed to load image: pln1.png");
start_img_plane2 = load_bitmap_resized("pln2.png", 75, 57);
if (!start_img_plane2)
game_abort("failed to load image: pln2.png");
start_img_plane3 = load_bitmap_resized("pln3.png", 75, 57);
if (!start_img_plane3)
game_abort("failed to load image: pln3.png");
img_timeup = load_bitmap_resized("timesup.png", time_up_size*2, time_up_size);
start_img_enemy = al_load_bitmap("smallfighter0006.png");
if (!start_img_enemy)
game_abort("failed to load image: smallfighter0006.png");
beep_bgm = al_load_sample("beep.mp3");
if (!beep_bgm)
game_abort("failed to load audio: beep.mp3");
laser_bgm = al_load_sample("laser.ogg");
if (!laser_bgm)
game_abort("failed to load audio: laser.ogg");
shot_bgm = al_load_sample("shot.ogg");
if (!shot_bgm)
game_abort("failed to load audio: shot.ogg");
explosion_bgm = al_load_sample("explosion.ogg");
if (!explosion_bgm)
game_abort("failed to load audio: explosion.ogg");
img_heart= load_bitmap_resized("heart.png", 50, 50);
if (!img_heart)
game_abort("failed to load image: heart.png");
beat_bgm = al_load_sample("heartbeat.ogg");
if (!beat_bgm)
game_abort("failed to load audio: heartbeat.ogg");
start_bgm = al_load_sample("mythica.ogg");
if (!start_bgm)
game_abort("failed to load audio: mythica.ogg");
lose_bgm = al_load_sample("lose.mp3");
if (!lose_bgm)
game_abort("failed to load audio: lose.mp3");
win_bgm = al_load_sample("win.mp3");
if (!win_bgm)
game_abort("failed to load audio: win.mp3");
img_explosion[0]= load_bitmap_resized("explosion00.png", 60, 60);
img_explosion[1] = load_bitmap_resized("explosion01.png", 60, 60);
img_explosion[2] = load_bitmap_resized("explosion02.png", 60, 60);
img_explosion[3] = load_bitmap_resized("explosion03.png", 60, 60);
img_explosion[4] = load_bitmap_resized("explosion04.png", 60, 60);
img_explosion[5] = load_bitmap_resized("explosion05.png", 60, 60);
img_explosion[6] = load_bitmap_resized("explosion06.png", 60, 60);
img_explosion[7] = load_bitmap_resized("explosion07.png", 60, 60);
img_explosion[8] = load_bitmap_resized("explosion08.png", 60, 60);
setting_bgm = al_load_sample("bell.ogg");
if (!setting_bgm)
game_abort("failed to load audio: bell.ogg");
img_enemy[0] = load_bitmap_resized("enemy1.png", 50, 50);
if (!img_enemy[0])
game_abort("failed to load image: enemy1.png");
img_enemy[1] = load_bitmap_resized("enemy2.png", 50, 50);
if (!img_enemy[1])
game_abort("failed to load image: enemy2.png");
img_enemy[2] = load_bitmap_resized("enemy3.png", 50, 50);
if (!img_enemy[2])
game_abort("failed to load image: enemy3.png");
img_enemy[3] = load_bitmap_resized("enemy4.png", 50, 50);
if (!img_enemy[3])
game_abort("failed to load image: enemy4.png");
/* Menu Scene resources*/
menu_img_background = al_load_bitmap("wood.jpg");
if (!menu_img_background)
game_abort("failed to load image: wood.jpg");
// Change to first scene.
game_change_scene(SCENE_MENU);
}
void game_start_event_loop(void) {
bool done = false;
ALLEGRO_EVENT event;
int redraws = 0;
while (!done) {
al_wait_for_event(game_event_queue, &event);
if (event.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
// Event for clicking the window close button.
game_log("Window close button clicked");
done = true;
} else if (event.type == ALLEGRO_EVENT_TIMER) {
// Event for redrawing the display.
if (event.timer.source == game_update_timer)
// The redraw timer has ticked.
redraws++;
} else if (event.type == ALLEGRO_EVENT_KEY_DOWN) {
// Event for keyboard key down.
game_log("Key with keycode %d down", event.keyboard.keycode);
key_state[event.keyboard.keycode] = true;
on_key_down(event.keyboard.keycode);
} else if (event.type == ALLEGRO_EVENT_KEY_UP) {
// Event for keyboard key up.
game_log("Key with keycode %d up", event.keyboard.keycode);
key_state[event.keyboard.keycode] = false;
} else if (event.type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN) {
// Event for mouse key down.
game_log("Mouse button %d down at (%d, %d)", event.mouse.button, event.mouse.x, event.mouse.y);
mouse_state[event.mouse.button] = true;
on_mouse_down(event.mouse.button, event.mouse.x, event.mouse.y);
} else if (event.type == ALLEGRO_EVENT_MOUSE_BUTTON_UP) {
// Event for mouse key up.
game_log("Mouse button %d up at (%d, %d)", event.mouse.button, event.mouse.x, event.mouse.y);
mouse_state[event.mouse.button] = false;
} else if (event.type == ALLEGRO_EVENT_MOUSE_AXES) {
if (event.mouse.dx != 0 || event.mouse.dy != 0) {
// Event for mouse move.
// game_log("Mouse move to (%d, %d)", event.mouse.x, event.mouse.y);
mouse_x = event.mouse.x;
mouse_y = event.mouse.y;
} else if (event.mouse.dz != 0) {
// Event for mouse scroll.
game_log("Mouse scroll at (%d, %d) with delta %d", event.mouse.x, event.mouse.y, event.mouse.dz);
}
}
// Redraw
if (redraws > 0 && al_is_event_queue_empty(game_event_queue)) {
// if (redraws > 1)
// game_log("%d frame(s) dropped", redraws - 1);
// Update and draw the next frame.
game_update();
game_draw();
redraws = 0;
}
}
}
void game_update(void) {
if (active_scene == SCENE_START&&end==0) {
if (plane.life == 1&&change==1) {
if (!al_play_sample(beat_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_LOOP, &beat_bgm_id))
game_abort("failed to play audio (bgm)");
al_stop_sample(&start_bgm_id);
game_log("stop audio (bgm)");
change = 0;
}
double now2 = al_get_time();
if (last_count_time == 0) {
last_count_time = al_get_time();
}
else if(now2-last_count_time>=2) {
last_count_time = now2;
cur_length--;
}
//change the speed of enemy plane
for (int i = 0; i < MAX_ENEMY; i++) {
double now = al_get_time();
enemies[i].vx = sin(now*(i+1))*1.5+sin(now* (i + 3))*1.5;
enemies[i].vy = fabs(sin(now * (i + 1) ) / 2) * 1.5+ fabs( sin( now * (i + 3) ) / 2) * 1.5;
}
//
plane.vx = plane.vy = 0;
if (key_state[ALLEGRO_KEY_UP] || key_state[ALLEGRO_KEY_W])
plane.vy -= plane_speed;
if (key_state[ALLEGRO_KEY_DOWN] || key_state[ALLEGRO_KEY_S])
plane.vy += plane_speed;
if (key_state[ALLEGRO_KEY_LEFT] || key_state[ALLEGRO_KEY_A])
plane.vx -= plane_speed;
if (key_state[ALLEGRO_KEY_RIGHT] || key_state[ALLEGRO_KEY_D])
plane.vx += plane_speed;
// 0.71 is (1/sqrt(2)).
plane.y += plane.vy * 4 * (plane.vx ? 0.71f : 1);
plane.x += plane.vx * 4 * (plane.vy ? 0.71f : 1);
if (plane.x < plane.w / 2)
plane.x = plane.w / 2;
else if (plane.x > SCREEN_W - plane.w / 2)
plane.x = SCREEN_W - plane.w / 2;
if (plane.y < plane.h / 2)
plane.y = plane.h / 2;
else if (plane.y > SCREEN_H - plane.h / 2)
plane.y = SCREEN_H - plane.h / 2;
int i;
/*for (i = 0; i < MAX_ENEMY; i++) {
}*/
//enemy boundary check
for (i = 0; i < MAX_ENEMY; i++) {
if (enemies[i].hidden == true)
continue;
enemies[i].x += enemies[i].vx;
enemies[i].y += enemies[i].vy;
if (enemies[i].y + enemies[i].h / 2 > SCREEN_H || enemies[i].x + enemies[i].w / 2 > SCREEN_W || enemies[i].x + enemies[i].w / 2 < 0){
last_plane_OFB = al_get_time();
enemies[i].hidden = true;
}
}
//enemy get-bullet
for (i = 0; i < MAX_ENEMY; i++) {
for (int j = 0; j < plane.bullet; j++) {
if (!enemies[i].hidden&&!bullets[j].hidden &&((pnt_in_rect(bullets[j].x + bullets[j].w / 2, bullets[j].y + bullets[j].h / 2, enemies[i].x, enemies[i].y, enemies[j].w, enemies[j].h))\
|| pnt_in_rect(bullets[j].x + bullets[j].w / 2, bullets[j].y - bullets[j].h / 2, enemies[i].x, enemies[i].y, enemies[j].w, enemies[j].h)\
|| pnt_in_rect(bullets[j].x - bullets[j].w / 2, bullets[j].y + bullets[j].h / 2, enemies[i].x, enemies[i].y, enemies[j].w, enemies[j].h)\
|| pnt_in_rect(bullets[j].x - bullets[j].w / 2, bullets[j].y - bullets[j].h / 2, enemies[i].x, enemies[i].y, enemies[j].w, enemies[j].h))){
//enemies_get_shot[i]++;
enemies[i].life--;
bullets[j].hidden = true;
if (enemies[i].life <= 0) {
if (!al_play_sample(explosion_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &explosion_bgm_id))
game_log("failed to play audio (explosion_bgm)");
score+=enemies[i].type;
enemies[i].life = 2;
enemies[i].hidden = true;
}
else {
if (!al_play_sample(shot_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &shot_bgm_id))
game_log("failed to play audio (shot_bgm)");
}
}
}
if (!enemies[i].hidden && enemies[i].y > 505) {
blood -= 10;
enemies[i].hidden = true;
if (!al_play_sample(explosion_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &explosion_bgm_id))
game_log("failed to play audio (explosion_bgm)");
enemies[i].life = 2;
//int Max_bld=MAX_BLOOD;
if (blood <= 30 && blood > 20 &&step==0) {
step++;
start_img_background = load_bitmap_resized("step1.jpg", SCREEN_W, SCREEN_H);
if (!start_img_background)
game_abort("failed to load image: step1.jpg");
}
else if (blood <= 20 && blood > 10 &&step==1) {
step++;
start_img_background = load_bitmap_resized("step2.jpg", SCREEN_W, SCREEN_H);
if (!start_img_background)
game_abort("failed to load image: step2.jpg");
}
else if (blood <= 10 && blood > 0 && step == 2) {
step++;
start_img_background = load_bitmap_resized("step3.jpg", SCREEN_W, SCREEN_H);
if (!start_img_background)
game_abort("failed to load image: step3.jpg");
}
if (blood <= 0) {
end = 3;
al_stop_sample(&beep_bgm_id);
game_log("stop audio (bgm)");
if (!al_play_sample(lose_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &lose_bgm_id))
game_log("failed to play audio (bgm)");
game_change_scene(SCENE_END3);
}
}
}
for (i = 0; i < MAX_ENEMY; i++) {
if (!bullets[i].hidden && (pnt_in_rect(enemies[i].x + enemies[i].w / 2, enemies[i].y + enemies[i].h / 2, plane.x, plane.y, plane.w, plane.h))\
|| (pnt_in_rect(enemies[i].x + enemies[i].w / 2, enemies[i].y - enemies[i].h / 2, plane.x, plane.y, plane.w, plane.h))\
|| (pnt_in_rect(enemies[i].x - enemies[i].w / 2, enemies[i].y + enemies[i].h / 2, plane.x, plane.y, plane.w, plane.h))\
|| (pnt_in_rect(enemies[i].x - enemies[i].w / 2, enemies[i].y - enemies[i].h / 2, plane.x, plane.y, plane.w, plane.h))) {
plane.life--;
if (!al_play_sample(explosion_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &explosion_bgm_id))
game_log("failed to play audio (explosion_bgm)");
if (plane.life == 1) {
change = 1;
}
enemies[i].life = 0;
enemies[i].hidden = true;
//game_log("%d\n", plane.life);
if (plane.life == 0) {
end = 2;
al_stop_sample(&beep_bgm_id);
game_log("stop audio (bgm)");
if (!al_play_sample(lose_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &lose_bgm_id))
game_log("failed to play audio (bgm)");
game_change_scene(SCENE_END2);
}
}
}
//
for (i = 0; i < plane.bullet; i++) {
if (bullets[i].hidden == true)
continue;
bullets[i].x += bullets[i].vx;
bullets[i].y += bullets[i].vy;
if (bullets[i].y + bullets[i].h/2 < 0)
bullets[i].hidden = true;
}
double now = al_get_time();
if (key_state[ALLEGRO_KEY_SPACE] && now - last_shoot_timestamp >= MAX_COOLDOWN) {
for (i = 0; i < plane.bullet; i++) {
if (bullets[i].hidden==true) {
last_shoot_timestamp = now;
bullets[i].hidden = false;
bullets[i].x = plane.x;
bullets[i].y = plane.y - plane.h/2;
if (!al_play_sample(laser_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &laser_bgm_id))
game_log("failed to play audio (laser_bgm)");
break;
}
}
}
//enemy plane relive
for (i = 0; i < MAX_ENEMY; i++) {
double now = al_get_time();
if (enemies[i].hidden == true && now - last_plane_OFB >= MAX_COOLDOWN+0.3) {
int ran = rand() % 4;
enemies[i].hidden = false;
enemies[i].img = img_enemy[ran];
enemies[i].type = ran + 1;
enemies[i].w = al_get_bitmap_width(enemies[i].img);
enemies[i].h = al_get_bitmap_height(enemies[i].img);
enemies[i].x = enemies[i].w / 2 + (float)rand() / RAND_MAX * (SCREEN_W - enemies[i].w);
enemies[i].y = 80;
enemies[i].life = 2;
}
}
//
if (cur_length <= 3&&first==1) {
first = 0;
if (!al_play_sample(beep_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &beep_bgm_id))
game_abort("failed to play audio (beep_bgm)");
}
else if (cur_length <= 0) {
//al_draw_text(font_pirulen_60, al_map_rgb(41, 36, 33), SCREEN_W / 2 - 100, SCREEN_H/2, 0, "GAMEOVER");
end = 1;
al_stop_sample(&beep_bgm_id);
game_log("stop audio (bgm)");
if (!al_play_sample(win_bgm, volume, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, &win_bgm_id))
game_log("failed to play audio (beep_bgm)");
game_change_scene(SCENE_END1);
}
}
}
void game_draw(void) {
if (active_scene == SCENE_MENU) {
al_draw_bitmap(main_img_background, 0, 0, 0);
//al_draw_text(font_pirulen_32, al_map_rgb(255, 255, 255), SCREEN_W / 2, 30, ALLEGRO_ALIGN_CENTER, "Space Shooter");
al_draw_text(font_pirulen_24, al_map_rgb(255, 255, 255), 20, SCREEN_H - 50, 0, "Press enter key to start");
if (pnt_in_rect(mouse_x, mouse_y, 665, 515, 150, 150))
al_draw_bitmap(img_intro2, 590, 440, 0);
else
al_draw_bitmap(img_intro1, 590, 440, 0);
if (pnt_in_rect(mouse_x, mouse_y, SCREEN_W - 29, 29, 38, 38))
al_draw_bitmap(img_settings2, SCREEN_W - 48, 10, 0);
else
al_draw_bitmap(img_settings, SCREEN_W - 48, 10, 0);
} else if (active_scene == SCENE_START) {
int i,time=MAX_TIME;
al_draw_bitmap(start_img_background, 0, 0, 0);
al_draw_textf(font_pirulen_32, al_map_rgb(250, 250, 250), SCREEN_W / 2 - 225, 30, 0, "YOUR Score:%4d", score);
al_draw_text(font_pirulen_24, al_map_rgb(250, 250, 250), 450- time*11, 90, 0, "Time left: ");
al_draw_text(font_pirulen_24, al_map_rgb(250, 250, 250), 150, SCREEN_H - 50, 0, "EARTH's HP: ");
for (i = 0; i < blood; i++) {
al_draw_bitmap(img_blood,380 + i * 7, SCREEN_H-53, 0);
}
for (i = 0; i < cur_length; i++) {
al_draw_bitmap(start_img_loading, 680 + i * 11-time*11, 97, 0);
}
for (i = 0; i < plane.life; i++) {
al_draw_bitmap(img_heart, 650 + i * 45, 25, 0);
}
for (i = 0; i < plane.bullet; i++)
draw_movable_object(bullets[i]);
//for (i = 0; i < 4; i++)
// printf("%d\n", bullets[i].hidden);
draw_movable_object(plane);
for (i = 0; i < MAX_ENEMY; i++)
draw_movable_object(enemies[i]);
}
else if (active_scene == SCENE_SETTINGS) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(menu_img_background, 0, 0, 0);
if (pnt_in_rect(mouse_x, mouse_y, 255, 350, 150, 150))
al_draw_bitmap(img_plus2, 180, 275, 0);
else
al_draw_bitmap(img_plus, 180, 275, 0);
if (pnt_in_rect(mouse_x, mouse_y, 555, 350, 150, 150))
al_draw_bitmap(img_minus2, 480, 275, 0);
else
al_draw_bitmap(img_minus, 480, 275, 0);
al_draw_text(font_pirulen_60, al_map_rgb(41, 36, 33), SCREEN_W / 2-175, 100, 0 , "Setting");
al_draw_textf(font_pirulen_24, al_map_rgb(41, 36, 33), SCREEN_W / 2-225 , SCREEN_H/2-75, 0, "YOUR current Volume: %.0f",volume*5);
al_draw_text(font_pirulen_24, al_map_rgb(41, 36, 33), SCREEN_W / 2 - 175, 450, 0, "Volume Range: 0 - 10");
al_draw_text(font_pirulen_24, al_map_rgb(250, 250, 250), 20, SCREEN_H - 50, 0, "Press backspace key to menu");
}
else if (active_scene == SCENE_PICK) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(pick_img_background, 0, 0, 0);
al_draw_text(font_pirulen_32, al_map_rgb(250, 250, 250), SCREEN_W / 2 - 300, 50, 0, "Choose Your Character");
al_draw_text(font_pirulen_32, al_map_rgb(250, 250, 250), 50, SCREEN_H - 100, 0, "Press enter key to continue");
al_draw_bitmap(pick_img_plane1, 120, 140, 0);
al_draw_bitmap(pick_img_plane2, 320, 140, 0);
al_draw_bitmap(pick_img_plane3, 520, 140, 0);
}
else if (active_scene == SCENE_END1) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(black_background, 0, 0, 0);
al_draw_bitmap(img_timeup, 0 , 0, 0);
if (time_up_size > 250) {
al_draw_textf(font_pirulen_32, al_map_rgb(250, 250, 250), 20, SCREEN_H - 150, 0, "Your final score is %d point(s)",score);
al_draw_text(font_pirulen_24, al_map_rgb(250, 250, 250), 110, SCREEN_H - 75, 0, "Press enter key to continue");
}
if (time_up_size < 380) {
time_up_size += 2;
img_timeup = load_bitmap_resized("timesup.png", time_up_size * 2, time_up_size);
}
}
else if (active_scene == SCENE_END2) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(end2_background, 0, 0, 0);
al_draw_textf(font_pirulen_32, al_map_rgb(250, 250, 250), 20, SCREEN_H - 150, 0, "Your final score is %d point(s)", score);
al_draw_text(font_pirulen_24, al_map_rgb(250, 250, 250), 110, SCREEN_H - 75, 0, "Press enter key to continue");
}
else if (active_scene == SCENE_END3) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(end3_background, 0, 0, 0);
al_draw_text(font_pirulen_100, al_map_rgb(250, 250, 250), 20, 150, 0, "GAMEOVER");
al_draw_textf(font_pirulen_32, al_map_rgb(250, 250, 250), 30, SCREEN_H - 200, 0, "Your final score is %d point(s)", score);
al_draw_text(font_pirulen_24, al_map_rgb(250, 250, 250), 110, SCREEN_H - 75, 0, "Press enter key to continue");
}
else if (active_scene == SCENE_INTRO1) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(img_pg_intro1, 0, 0, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 530, 60, 60))
al_draw_bitmap(img_next_pg2, 700, 500, 0);
else
al_draw_bitmap(img_next_pg1, 700, 500, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 60, 60, 60))
al_draw_bitmap(img_home_pg2, 700, 30, 0);
else
al_draw_bitmap(img_home_pg1, 700, 30, 0);
}
else if (active_scene == SCENE_INTRO2) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(img_pg_intro2, 0, 0, 0);
if (pnt_in_rect(mouse_x, mouse_y, 60, 530, 60, 60))
al_draw_bitmap(img_pre_pg2, 30, 500, 0);
else
al_draw_bitmap(img_pre_pg1, 30, 500, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 530, 60, 60))
al_draw_bitmap(img_next_pg2, 700, 500, 0);
else
al_draw_bitmap(img_next_pg1, 700, 500, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 60, 60, 60))
al_draw_bitmap(img_home_pg2, 700, 30, 0);
else
al_draw_bitmap(img_home_pg1, 700, 30, 0);
}
else if (active_scene == SCENE_INTRO3) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(img_pg_intro3, 0, 0, 0);
if (pnt_in_rect(mouse_x, mouse_y, 60, 530, 60, 60))
al_draw_bitmap(img_pre_pg2, 30, 500, 0);
else
al_draw_bitmap(img_pre_pg1, 30, 500, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 530, 60, 60))
al_draw_bitmap(img_next_pg2, 700, 500, 0);
else
al_draw_bitmap(img_next_pg1, 700, 500, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 60, 60, 60))
al_draw_bitmap(img_home_pg2, 700, 30, 0);
else
al_draw_bitmap(img_home_pg1, 700, 30, 0);
}
else if (active_scene == SCENE_INTRO4) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_draw_bitmap(img_pg_intro4, 0, 0, 0);
if (pnt_in_rect(mouse_x, mouse_y, 60, 530, 60, 60))
al_draw_bitmap(img_pre_pg2, 30, 500, 0);
else
al_draw_bitmap(img_pre_pg1, 30, 500, 0);
if (pnt_in_rect(mouse_x, mouse_y, 730, 60, 60, 60))
al_draw_bitmap(img_home_pg2, 700, 30, 0);
else
al_draw_bitmap(img_home_pg1, 700, 30, 0);
}
al_flip_display();
}
void game_destroy(void) {
// Destroy everything you have created.
// Free the memories allocated by malloc or allegro functions.
// Destroy shared resources.
int i;
al_destroy_font(font_pirulen_32);
al_destroy_font(font_pirulen_24);
/* Menu Scene resources*/
al_destroy_bitmap(main_img_background);
al_destroy_sample(main_bgm);
al_destroy_bitmap(img_settings);
al_destroy_bitmap(img_settings2);
al_destroy_bitmap(img_intro1);
al_destroy_bitmap(img_intro2);
al_destroy_bitmap(img_plus);
al_destroy_bitmap(img_plus2);
al_destroy_bitmap(img_minus);
al_destroy_bitmap(img_minus2);
al_destroy_bitmap(start_img_loading);
al_destroy_bitmap(pick_img_background);
al_destroy_bitmap(start_img_plane1);
al_destroy_bitmap(start_img_plane2);
al_destroy_bitmap(start_img_plane3);
al_destroy_bitmap(pick_img_plane1);
al_destroy_bitmap(pick_img_plane2);
al_destroy_bitmap(pick_img_plane3);
/* Start Scene resources*/
al_destroy_bitmap(start_img_background);
al_destroy_bitmap(img_blood);
al_destroy_bitmap(start_img_plane);
al_destroy_bitmap(start_img_enemy);
al_destroy_bitmap(black_background);
al_destroy_bitmap(img_timeup);
al_destroy_bitmap(img_pg_intro1);
al_destroy_bitmap(img_pg_intro2);
al_destroy_bitmap(img_pg_intro3);
al_destroy_bitmap(img_pg_intro4);
al_destroy_bitmap(img_pre_pg1);
al_destroy_bitmap(img_pre_pg2);
al_destroy_bitmap(img_next_pg1);
al_destroy_bitmap(img_next_pg2);
al_destroy_bitmap(img_home_pg1);
al_destroy_bitmap(img_home_pg2);
al_destroy_bitmap(end2_background);
al_destroy_bitmap(end3_background);
al_destroy_sample(start_bgm);
al_destroy_sample(pick_bgm);
al_destroy_sample(setting_bgm);
al_destroy_sample(beat_bgm);
al_destroy_sample(beep_bgm);
al_destroy_sample(air_bgm);
al_destroy_sample(laser_bgm);
al_destroy_sample(shot_bgm);
al_destroy_sample(explosion_bgm);
al_destroy_sample(lose_bgm);
al_destroy_sample(flip_bgm);
for (i = 0; i < 9; i++) {
al_destroy_bitmap(img_explosion[i]);
}
al_destroy_bitmap(img_bullet);
for (i = 0; i < 4; i++) {
al_destroy_bitmap(img_enemy[i]);
}
al_destroy_timer(game_update_timer);
al_destroy_event_queue(game_event_queue);
al_destroy_display(game_display);
free(mouse_state);
}
void game_change_scene(int next_scene) {
game_log("Change scene from %d to %d", active_scene, next_scene);
if (active_scene == SCENE_MENU) {
al_stop_sample(&main_bgm_id);
game_log("stop audio (bgm)");
} else if (active_scene == SCENE_START) {
al_stop_sample(&start_bgm_id);
game_log("stop audio (bgm)");
al_stop_sample(&beat_bgm_id);
game_log("stop audio (bgm)");
}
else if (active_scene == SCENE_SETTINGS) {