src/main.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <time.h>
   4 #include <SDL2/SDL.h>
   5 #include <SDL2/SDL_mixer.h>
   6
   7 #include "./player.h"
   8 #include "./platforms.h"
   9 #include "./error.h"
  10 #include "./game.h"
  11 #include "./lt.h"
  12 #include "./path.h"
  13 #include "./point.h"
  14 #include "./sound_medium.h"
  15
  16 #define SCREEN_WIDTH 800
  17 #define SCREEN_HEIGHT 600
  18 #define GAME_FPS 60
  19
  20 /* LT module adapter for Mix_CloseAudio */
  21 static void Mix_CloseAudio_lt(void* ignored)
  22 {
  23     (void) ignored;
  24     Mix_CloseAudio();
  25 }
  26
  27 /* LT module adapter for SDL_Quit */
  28 static void SDL_Quit_lt(void* ignored)
  29 {
  30     (void) ignored;
  31     SDL_Quit();
  32 }
  33
  34 static void print_usage(FILE *stream)
  35 {
  36     fprintf(stream, "Usage: nothing <level-file>\n");
  37 }
  38
  39 int main(int argc, char *argv[])
  40 {
  41     srand((unsigned int) time(NULL));
  42
  43     lt_t *const lt = create_lt();
  44
  45     if (argc < 2) {
  46         print_usage(stderr);
  47         RETURN_LT(lt, -1);
  48     }
  49
  50     if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
  51         print_error_msg(ERROR_TYPE_SDL2, "Could not initialize SDL");
  52         RETURN_LT(lt, -1);
  53     }
  54     PUSH_LT(lt, 42, SDL_Quit_lt);
  55
  56     SDL_Window *const window = PUSH_LT(
  57         lt,
  58         SDL_CreateWindow(
  59             "Nothing",
  60             100, 100,
  61             SCREEN_WIDTH, SCREEN_HEIGHT,
  62             SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE),
  63         SDL_DestroyWindow);
  64
  65     if (window == NULL) {
  66         print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL window");
  67         RETURN_LT(lt, -1);
  68     }
  69
  70     SDL_Renderer *const renderer = PUSH_LT(
  71         lt,
  72         SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
  73         SDL_DestroyRenderer);
  74     if (renderer == NULL) {
  75         print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL renderer");
  76         RETURN_LT(lt, -1);
  77     }
  78     if (SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND) < 0) {
  79         print_error_msg(ERROR_TYPE_SDL2, "Could not set up blending mode for the renderer");
  80         RETURN_LT(lt, -1);
  81     }
  82
  83     SDL_Joystick *the_stick_of_joy = NULL;
  84
  85     if (SDL_NumJoysticks() > 0) {
  86         the_stick_of_joy = PUSH_LT(lt, SDL_JoystickOpen(0), SDL_JoystickClose);
  87
  88         if (the_stick_of_joy == NULL) {
  89             print_error_msg(ERROR_TYPE_SDL2, "Could not open 0th Stick of the Joy: %s\n");
  90             RETURN_LT(lt, -1);
  91         }
  92
  93         printf("Opened Joystick 0\n");
  94         printf("Name: %s\n", SDL_JoystickNameForIndex(0));
  95         printf("Number of Axes: %d\n", SDL_JoystickNumAxes(the_stick_of_joy));
  96         printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(the_stick_of_joy));
  97         printf("Number of Balls: %d\n", SDL_JoystickNumBalls(the_stick_of_joy));
  98
  99         SDL_JoystickEventState(SDL_ENABLE);
 100     } else {
 101         fprintf(stderr, "[WARNING] Could not find any Sticks of the Joy\n");
 102     }
 103
 104     if (Mix_OpenAudio(
 105             MIX_DEFAULT_FREQUENCY,
 106             MIX_DEFAULT_FORMAT,
 107             2,
 108             1024) < 0) {
 109         print_error_msg(ERROR_TYPE_SDL2_MIXER, "Could not initialize the audio\n");
 110         RETURN_LT(lt, -1);
 111     }
 112     PUSH_LT(lt, 42, Mix_CloseAudio_lt);
 113
 114     Mix_Chunk * sound_samples[] = {
 115         PUSH_LT(lt, Mix_LoadWAV("./sounds/nothing.wav"), Mix_FreeChunk),
 116         PUSH_LT(lt, Mix_LoadWAV("./sounds/something.wav"), Mix_FreeChunk)
 117     };
 118     const size_t sound_samples_count = sizeof(sound_samples) / sizeof(Mix_Chunk*);
 119
 120     sound_medium_t *sound_medium =
 121         PUSH_LT(lt, create_sound_medium(sound_samples, sound_samples_count), destroy_sound_medium);
 122
 123     // ------------------------------
 124
 125     char *sounds_folder = PUSH_LT(lt, base_path_folder("sounds"), free);
 126     if (sounds_folder == NULL) {
 127         print_current_error_msg("Could not get the sounds folder");
 128         RETURN_LT(lt, -1);
 129     }
 130
 131     game_t *const game = PUSH_LT(lt, create_game(argv[1], sound_medium), destroy_game);
 132     if (game == NULL) {
 133         print_current_error_msg("Could not create the game object");
 134         RETURN_LT(lt, -1);
 135     }
 136
 137     const Uint8 *const keyboard_state = SDL_GetKeyboardState(NULL);
 138     const Uint32 delay_ms = (Uint32) roundf(1000.0f / GAME_FPS);
 139     SDL_Event e;
 140     while (!game_over_check(game)) {
 141         while (!game_over_check(game) && SDL_PollEvent(&e)) {
 142             if (game_event(game, &e) < 0) {
 143                 print_current_error_msg("Failed handling event");
 144                 RETURN_LT(lt, -1);
 145             }
 146         }
 147
 148         if (game_input(game, keyboard_state, the_stick_of_joy) < 0) {
 149             print_current_error_msg("Failed handling input");
 150             RETURN_LT(lt, -1);
 151         }
 152
 153         if (game_update(game, delay_ms) < 0) {
 154             print_current_error_msg("Failed handling updating");
 155             RETURN_LT(lt, -1);
 156         }
 157
 158         if (game_render(game, renderer) < 0) {
 159             print_current_error_msg("Failed rendering the game");
 160             RETURN_LT(lt, -1);
 161         }
 162     }
 163
 164     RETURN_LT(lt, 0);
 165 }