src/main.c

   1 #include <SDL2/SDL.h>
   2 #include <SDL2/SDL_mixer.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <time.h>
   6
   7 #include "game.h"
   8 #include "game/level/platforms.h"
   9 #include "game/level/player.h"
  10 #include "game/sound_medium.h"
  11 #include "math/point.h"
  12 #include "system/error.h"
  13 #include "system/lt.h"
  14
  15 #define SCREEN_WIDTH 800
  16 #define SCREEN_HEIGHT 600
  17 #define GAME_FPS 60
  18
  19 /* LT module adapter for Mix_CloseAudio */
  20 static void Mix_CloseAudio_lt(void* ignored)
  21 {
  22     (void) ignored;
  23     Mix_CloseAudio();
  24 }
  25
  26 /* LT module adapter for SDL_Quit */
  27 static void SDL_Quit_lt(void* ignored)
  28 {
  29     (void) ignored;
  30     SDL_Quit();
  31 }
  32
  33 static void print_usage(FILE *stream)
  34 {
  35     fprintf(stream, "Usage: nothing <level-file>\n");
  36 }
  37
  38 int main(int argc, char *argv[])
  39 {
  40     srand((unsigned int) time(NULL));
  41
  42     lt_t *const lt = create_lt();
  43
  44     if (argc < 2) {
  45         print_usage(stderr);
  46         RETURN_LT(lt, -1);
  47     }
  48
  49     if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
  50         print_error_msg(ERROR_TYPE_SDL2, "Could not initialize SDL");
  51         RETURN_LT(lt, -1);
  52     }
  53     PUSH_LT(lt, 42, SDL_Quit_lt);
  54
  55     SDL_Window *const window = PUSH_LT(
  56         lt,
  57         SDL_CreateWindow(
  58             "Nothing",
  59             100, 100,
  60             SCREEN_WIDTH, SCREEN_HEIGHT,
  61             SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE),
  62         SDL_DestroyWindow);
  63
  64     if (window == NULL) {
  65         print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL window");
  66         RETURN_LT(lt, -1);
  67     }
  68
  69     SDL_Renderer *const renderer = PUSH_LT(
  70         lt,
  71         SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
  72         SDL_DestroyRenderer);
  73     if (renderer == NULL) {
  74         print_error_msg(ERROR_TYPE_SDL2, "Could not create SDL renderer");
  75         RETURN_LT(lt, -1);
  76     }
  77     if (SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND) < 0) {
  78         print_error_msg(ERROR_TYPE_SDL2, "Could not set up blending mode for the renderer");
  79         RETURN_LT(lt, -1);
  80     }
  81
  82     SDL_Joystick *the_stick_of_joy = NULL;
  83
  84     if (SDL_NumJoysticks() > 0) {
  85         the_stick_of_joy = PUSH_LT(lt, SDL_JoystickOpen(0), SDL_JoystickClose);
  86
  87         if (the_stick_of_joy == NULL) {
  88             print_error_msg(ERROR_TYPE_SDL2, "Could not open 0th Stick of the Joy: %s\n");
  89             RETURN_LT(lt, -1);
  90         }
  91
  92         printf("Opened Joystick 0\n");
  93         printf("Name: %s\n", SDL_JoystickNameForIndex(0));
  94         printf("Number of Axes: %d\n", SDL_JoystickNumAxes(the_stick_of_joy));
  95         printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(the_stick_of_joy));
  96         printf("Number of Balls: %d\n", SDL_JoystickNumBalls(the_stick_of_joy));
  97
  98         SDL_JoystickEventState(SDL_ENABLE);
  99     } else {
 100         fprintf(stderr, "[WARNING] Could not find any Sticks of the Joy\n");
 101     }
 102
 103     if (Mix_OpenAudio(
 104             MIX_DEFAULT_FREQUENCY,
 105             MIX_DEFAULT_FORMAT,
 106             2,
 107             1024) < 0) {
 108         print_error_msg(ERROR_TYPE_SDL2_MIXER, "Could not initialize the audio\n");
 109         RETURN_LT(lt, -1);
 110     }
 111     PUSH_LT(lt, 42, Mix_CloseAudio_lt);
 112
 113     Mix_Chunk * sound_samples[] = {
 114         PUSH_LT(lt, Mix_LoadWAV("./sounds/nothing.wav"), Mix_FreeChunk),
 115         PUSH_LT(lt, Mix_LoadWAV("./sounds/something.wav"), Mix_FreeChunk)
 116     };
 117     const size_t sound_samples_count = sizeof(sound_samples) / sizeof(Mix_Chunk*);
 118
 119     sound_medium_t *sound_medium =
 120         PUSH_LT(
 121             lt,
 122             create_sound_medium(sound_samples, sound_samples_count, 0, MIX_CHANNELS - 1),
 123             destroy_sound_medium);
 124     if (sound_medium == NULL) {
 125         print_current_error_msg("Could not create sound medium");
 126         RETURN_LT(lt, -1);
 127     }
 128
 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 float delay_ms = 1.0f / 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_render(game, renderer) < 0) {
 154             print_current_error_msg("Failed rendering the game");
 155             RETURN_LT(lt, -1);
 156         }
 157
 158         if (game_update(game, delay_ms) < 0) {
 159             print_current_error_msg("Failed handling updating");
 160             RETURN_LT(lt, -1);
 161         }
 162
 163         if (game_sound(game) < 0) {
 164             print_current_error_msg("Failed handling the sound");
 165             RETURN_LT(lt, -1);
 166         }
 167     }
 168
 169     RETURN_LT(lt, 0);
 170 }